Isaac Christensen (isaac.christensen@se-eng.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/6782
-gerrit
commit 3ae1878b74e6116f6903a7b9e85288d78ef5307b Author: Gabe Black gabeblack@google.com Date: Mon Sep 30 23:00:33 2013 -0700
ARM: Generalize armv7 as arm.
There are ARM systems which are essentially heterogeneous multicores where some cores implement a different ARM architecture version than other cores. A specific example is the tegra124 which boots on an ARMv4 coprocessor while most code, including most of the firmware, runs on the main ARMv7 core. To support SOCs like this, the plan is to generalize the ARM architecture so that all versions are available, and an SOC/CPU can then select what architecture variant should be used for each component of the firmware; bootblock, romstage, and ramstage.
Old-Change-Id: I22e048c3bc72bd56371e14200942e436c1e312c2 Signed-off-by: Gabe Black gabeblack@google.com Reviewed-on: https://chromium-review.googlesource.com/171338 Reviewed-by: Gabe Black gabeblack@chromium.org Commit-Queue: Gabe Black gabeblack@chromium.org Tested-by: Gabe Black gabeblack@chromium.org (cherry picked from commit 8423a41529da0ff67fb9873be1e2beb30b09ae2d) Signed-off-by: Isaac Christensen isaac.christensen@se-eng.com
ARM: Split out ARMv7 code and make it possible to have other arch versions.
We don't always want to use ARMv7 code when building for ARM, so we should separate out the ARMv7 code so it can be excluded, and also make it possible to include code for some other version of the architecture instead, all per build component for cases where we need more than one architecture version at a time.
The tegra124 bootblock will ultimately need to be ARMv4, but until we have some ARMv4 code to switch over to we can leave it set to ARMv7.
Old-Change-Id: Ia982c91057fac9c252397b7c866224f103761cc7 Reviewed-on: https://chromium-review.googlesource.com/171400 Reviewed-by: Gabe Black gabeblack@chromium.org Tested-by: Gabe Black gabeblack@chromium.org Commit-Queue: Gabe Black gabeblack@chromium.org (cherry picked from commit 799514e6060aa97acdcf081b5c48f965be134483)
Squashed two related patches for splitting ARM support into general ARM support and ARMv7 specific pieces.
Change-Id: Ic6511507953a2223c87c55f90252c4a4e1dd6010 Signed-off-by: Isaac Christensen isaac.christensen@se-eng.com --- Makefile | 6 +- Makefile.inc | 4 +- payloads/libpayload/Config.in | 6 +- payloads/libpayload/Makefile | 4 +- payloads/libpayload/Makefile.inc | 2 +- payloads/libpayload/arch/Config.in | 2 +- payloads/libpayload/arch/arm/Config.in | 44 +++ payloads/libpayload/arch/arm/Makefile.inc | 39 +++ payloads/libpayload/arch/arm/assembler.h | 60 ++++ payloads/libpayload/arch/arm/cache.c | 329 ++++++++++++++++++++ payloads/libpayload/arch/arm/coreboot.c | 301 ++++++++++++++++++ payloads/libpayload/arch/arm/dummy_media.c | 42 +++ payloads/libpayload/arch/arm/exception.c | 177 +++++++++++ payloads/libpayload/arch/arm/exception_asm.S | 116 +++++++ payloads/libpayload/arch/arm/head.S | 59 ++++ payloads/libpayload/arch/arm/libpayload.ldscript | 93 ++++++ payloads/libpayload/arch/arm/main.c | 73 +++++ payloads/libpayload/arch/arm/memcpy.S | 244 +++++++++++++++ payloads/libpayload/arch/arm/memset.S | 127 ++++++++ payloads/libpayload/arch/arm/sysinfo.c | 64 ++++ payloads/libpayload/arch/arm/timer.c | 54 ++++ payloads/libpayload/arch/arm/util.S | 37 +++ payloads/libpayload/arch/arm/virtual.c | 38 +++ payloads/libpayload/arch/armv7/Config.in | 44 --- payloads/libpayload/arch/armv7/Makefile.inc | 39 --- payloads/libpayload/arch/armv7/assembler.h | 60 ---- payloads/libpayload/arch/armv7/cache.c | 330 -------------------- payloads/libpayload/arch/armv7/coreboot.c | 301 ------------------ payloads/libpayload/arch/armv7/dummy_media.c | 42 --- payloads/libpayload/arch/armv7/exception.c | 177 ----------- payloads/libpayload/arch/armv7/exception_asm.S | 116 ------- payloads/libpayload/arch/armv7/head.S | 59 ---- payloads/libpayload/arch/armv7/libpayload.ldscript | 93 ------ payloads/libpayload/arch/armv7/main.c | 73 ----- payloads/libpayload/arch/armv7/memcpy.S | 244 --------------- payloads/libpayload/arch/armv7/memset.S | 127 -------- payloads/libpayload/arch/armv7/sysinfo.c | 64 ---- payloads/libpayload/arch/armv7/timer.c | 54 ---- payloads/libpayload/arch/armv7/util.S | 37 --- payloads/libpayload/arch/armv7/virtual.c | 38 --- payloads/libpayload/bin/lpgcc | 8 +- payloads/libpayload/configs/config.panther | 2 +- payloads/libpayload/configs/defconfig | 2 +- payloads/libpayload/configs/defconfig-arm | 7 +- payloads/libpayload/include/arm/arch/cache.h | 341 +++++++++++++++++++++ payloads/libpayload/include/arm/arch/exception.h | 38 +++ payloads/libpayload/include/arm/arch/io.h | 76 +++++ payloads/libpayload/include/arm/arch/types.h | 60 ++++ payloads/libpayload/include/arm/arch/virtual.h | 41 +++ payloads/libpayload/include/armv7/arch/cache.h | 341 --------------------- payloads/libpayload/include/armv7/arch/exception.h | 38 --- payloads/libpayload/include/armv7/arch/io.h | 76 ----- payloads/libpayload/include/armv7/arch/types.h | 60 ---- payloads/libpayload/include/armv7/arch/virtual.h | 41 --- payloads/libpayload/include/cbfs_core.h | 2 +- payloads/libpayload/sample/Makefile | 2 +- payloads/libpayload/util/xcompile/xcompile | 12 +- payloads/tianocoreboot/libpayload.config | 2 +- src/Kconfig | 6 +- src/arch/arm/Kconfig | 28 ++ src/arch/arm/Makefile.inc | 130 ++++++++ src/arch/arm/armv7/Kconfig | 11 + src/arch/arm/armv7/Makefile.inc | 71 +++++ src/arch/arm/armv7/bootblock.S | 113 +++++++ src/arch/arm/armv7/bootblock_simple.c | 63 ++++ src/arch/arm/armv7/cache.c | 328 ++++++++++++++++++++ src/arch/arm/armv7/exception.c | 180 +++++++++++ src/arch/arm/armv7/exception_asm.S | 116 +++++++ src/arch/arm/armv7/mmu.c | 144 +++++++++ src/arch/arm/armv7/thread.c | 127 ++++++++ src/arch/arm/boot.c | 28 ++ src/arch/arm/bootblock.ld | 57 ++++ src/arch/arm/cpu.c | 42 +++ src/arch/arm/div0.c | 33 ++ src/arch/arm/eabi_compat.c | 31 ++ src/arch/arm/id.S | 20 ++ src/arch/arm/include/arch/boot/boot.h | 8 + src/arch/arm/include/arch/byteorder.h | 27 ++ src/arch/arm/include/arch/early_variables.h | 59 ++++ src/arch/arm/include/arch/exception.h | 38 +++ src/arch/arm/include/arch/hlt.h | 9 + src/arch/arm/include/arch/io.h | 94 ++++++ src/arch/arm/include/arch/pci_ops.h | 25 ++ src/arch/arm/include/arch/stages.h | 28 ++ src/arch/arm/include/armv7.h | 76 +++++ src/arch/arm/include/armv7/arch/arch_io.h | 68 ++++ src/arch/arm/include/armv7/arch/cache.h | 341 +++++++++++++++++++++ src/arch/arm/include/armv7/arch/cpu.h | 108 +++++++ src/arch/arm/include/armv7/arch/types.h | 46 +++ src/arch/arm/include/assembler.h | 62 ++++ src/arch/arm/include/bootblock_common.h | 15 + src/arch/arm/include/clocks.h | 43 +++ src/arch/arm/include/smp/spinlock.h | 52 ++++ src/arch/arm/include/stdint.h | 93 ++++++ src/arch/arm/include/utils.h | 56 ++++ src/arch/arm/memcpy.S | 244 +++++++++++++++ src/arch/arm/memmove.S | 197 ++++++++++++ src/arch/arm/memset.S | 127 ++++++++ src/arch/arm/ramstage.ld | 134 ++++++++ src/arch/arm/romstage.ld | 109 +++++++ src/arch/arm/stages.c | 61 ++++ src/arch/arm/tables.c | 77 +++++ src/arch/armv7/Kconfig | 26 -- src/arch/armv7/Makefile.inc | 142 --------- src/arch/armv7/boot.c | 28 -- src/arch/armv7/bootblock.S | 113 ------- src/arch/armv7/bootblock.ld | 57 ---- src/arch/armv7/bootblock_simple.c | 63 ---- src/arch/armv7/cache.c | 328 -------------------- src/arch/armv7/cpu.c | 42 --- src/arch/armv7/div0.c | 33 -- src/arch/armv7/eabi_compat.c | 31 -- src/arch/armv7/exception.c | 180 ----------- src/arch/armv7/exception_asm.S | 116 ------- src/arch/armv7/id.S | 20 -- src/arch/armv7/include/arch/boot/boot.h | 8 - src/arch/armv7/include/arch/byteorder.h | 27 -- src/arch/armv7/include/arch/cache.h | 341 --------------------- src/arch/armv7/include/arch/cpu.h | 108 ------- src/arch/armv7/include/arch/early_variables.h | 59 ---- src/arch/armv7/include/arch/exception.h | 38 --- src/arch/armv7/include/arch/hlt.h | 9 - src/arch/armv7/include/arch/io.h | 133 -------- src/arch/armv7/include/arch/pci_ops.h | 25 -- src/arch/armv7/include/arch/stages.h | 28 -- src/arch/armv7/include/arch/types.h | 46 --- src/arch/armv7/include/armv7.h | 76 ----- src/arch/armv7/include/assembler.h | 62 ---- src/arch/armv7/include/bootblock_common.h | 15 - src/arch/armv7/include/clocks.h | 43 --- src/arch/armv7/include/smp/spinlock.h | 52 ---- src/arch/armv7/include/stdint.h | 93 ------ src/arch/armv7/include/utils.h | 56 ---- src/arch/armv7/memcpy.S | 244 --------------- src/arch/armv7/memmove.S | 197 ------------ src/arch/armv7/memset.S | 127 -------- src/arch/armv7/mmu.c | 144 --------- src/arch/armv7/ramstage.ld | 134 -------- src/arch/armv7/romstage.ld | 109 ------- src/arch/armv7/stages.c | 61 ---- src/arch/armv7/tables.c | 77 ----- src/arch/armv7/thread.c | 127 -------- src/console/Kconfig | 2 +- src/cpu/ti/am335x/Makefile.inc | 2 +- src/device/oprom/yabel/device.h | 8 +- src/drivers/uart/Kconfig | 2 +- src/include/cbfs_core.h | 2 +- src/soc/nvidia/tegra124/bootblock_asm.S | 2 +- src/vendorcode/google/chromeos/fmap.c | 2 +- toolchain.inc | 7 +- util/cbfstool/cbfs.h | 2 +- util/cbfstool/cbfstool.c | 2 +- util/cbfstool/common.c | 2 +- util/cbfstool/elfheaders.c | 2 +- util/runfw/googlesnow.c | 2 +- util/showdevicetree/showdt.c | 2 +- util/xcompile/xcompile | 6 +- 157 files changed, 6225 insertions(+), 6131 deletions(-)
diff --git a/Makefile b/Makefile index a55ad67..49fbba5 100644 --- a/Makefile +++ b/Makefile @@ -117,7 +117,7 @@ else include $(HAVE_DOTCONFIG)
ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y) -# FIXME: armv7/aarch64 won't build right now +# FIXME: arm/aarch64 won't build right now CFLAGS_x86_32 = -no-integrated-as -Qunused-arguments -target i386-elf -m32 CC_x86_32:=clang
@@ -130,8 +130,8 @@ endif #CFLAGS_x86_32 += -mno-sse #endif
-CFLAGS_armv7 = -no-integrated-as -Qunused-arguments -target armv7-eabi -ccc-gcc-name $(CC_armv7) -CC_armv7:=clang +CFLAGS_arm = -no-integrated-as -Qunused-arguments -target arm-eabi -ccc-gcc-name $(CC_arm) +CC_arm:=clang
CFLAGS_aarch64 = -no-integrated-as -Qunused-arguments -target aarch64-eabi -ccc-gcc-name $(CC_aarch64) CC_aarch64:=clang diff --git a/Makefile.inc b/Makefile.inc index 8b11cf6..0640d4d 100644 --- a/Makefile.inc +++ b/Makefile.inc @@ -68,7 +68,7 @@ PHONY+= clean-abuild coreboot lint lint-stable build-dirs subdirs-y := src/lib src/console src/device src/ec src/southbridge src/soc subdirs-y += src/northbridge src/superio src/drivers src/cpu src/vendorcode subdirs-y += util/cbfstool util/sconfig util/nvramtool -subdirs-y += src/arch/armv7 src/arch/x86 +subdirs-y += src/arch/arm src/arch/x86 subdirs-y += src/mainboard/$(MAINBOARDDIR)
subdirs-y += site-local @@ -550,7 +550,7 @@ cbfs-files-$(CONFIG_BOOTSPLASH) += bootsplash.jpg bootsplash.jpg-file := $(call strip_quotes,$(CONFIG_BOOTSPLASH_FILE)) bootsplash.jpg-type := bootsplash
-ifeq ($(CONFIG_ARCH_ROMSTAGE_ARMV7),y) +ifeq ($(CONFIG_ARCH_ROMSTAGE_ARM),y) ROMSTAGE_ELF := romstage.elf endif ifeq ($(CONFIG_ARCH_ROMSTAGE_X86_32),y) diff --git a/payloads/libpayload/Config.in b/payloads/libpayload/Config.in index e3e064e..2a5048c 100644 --- a/payloads/libpayload/Config.in +++ b/payloads/libpayload/Config.in @@ -67,10 +67,10 @@ choice prompt "Target Architecture" default ARCH_X86
-config ARCH_ARMV7 - bool "ARMv7" +config ARCH_ARM + bool "ARM" help - Support the x86 architecture + Support the ARM architecture
config ARCH_X86 bool "x86" diff --git a/payloads/libpayload/Makefile b/payloads/libpayload/Makefile index 6416519..d84b63b 100644 --- a/payloads/libpayload/Makefile +++ b/payloads/libpayload/Makefile @@ -91,14 +91,14 @@ include util/kconfig/Makefile
include $(HAVE_DOTCONFIG)
-ARCHDIR-$(CONFIG_LP_ARCH_ARMV7) := armv7 +ARCHDIR-$(CONFIG_LP_ARCH_ARM) := arm ARCHDIR-$(CONFIG_LP_ARCH_X86) := x86
ARCH-y := $(ARCHDIR-y)
# If architecture folder name is different from GCC binutils architecture name, # override here. -ARCH-$(CONFIG_LP_ARCH_ARMV7) := armv7 +ARCH-$(CONFIG_LP_ARCH_ARM) := arm ARCH-$(CONFIG_LP_ARCH_X86) := i386
CC := $(CC_$(ARCH-y)) diff --git a/payloads/libpayload/Makefile.inc b/payloads/libpayload/Makefile.inc index a5de4b3..22f5e91 100644 --- a/payloads/libpayload/Makefile.inc +++ b/payloads/libpayload/Makefile.inc @@ -31,7 +31,7 @@
export KERNELVERSION := 0.2.0
-ARCHDIR-$(CONFIG_LP_ARCH_ARMV7) := armv7 +ARCHDIR-$(CONFIG_LP_ARCH_ARM) := arm ARCHDIR-$(CONFIG_LP_ARCH_X86) := x86 DESTDIR ?= install
diff --git a/payloads/libpayload/arch/Config.in b/payloads/libpayload/arch/Config.in index 1049da0..541f64f 100644 --- a/payloads/libpayload/arch/Config.in +++ b/payloads/libpayload/arch/Config.in @@ -27,5 +27,5 @@ ## SUCH DAMAGE. ##
-source "arch/armv7/Config.in" +source "arch/arm/Config.in" source "arch/x86/Config.in" diff --git a/payloads/libpayload/arch/arm/Config.in b/payloads/libpayload/arch/arm/Config.in new file mode 100644 index 0000000..b2ee527 --- /dev/null +++ b/payloads/libpayload/arch/arm/Config.in @@ -0,0 +1,44 @@ +## +## This file is part of the libpayload project. +## +## Copyright (c) 2012 Google Inc. +## +## Redistribution and use in source and binary forms, with or without +## modification, are permitted provided that the following conditions +## are met: +## 1. Redistributions of source code must retain the above copyright +## notice, this list of conditions and the following disclaimer. +## 2. Redistributions in binary form must reproduce the above copyright +## notice, this list of conditions and the following disclaimer in the +## documentation and/or other materials provided with the distribution. +## 3. The name of the author may not be used to endorse or promote products +## derived from this software without specific prior written permission. +## +## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +## SUCH DAMAGE. +## + +if ARCH_ARM + +config ARCH_SPECIFIC_OPTIONS # dummy + def_bool y + select LITTLE_ENDIAN + +config COREBOOT_INFO_RANGE_BASE + hex "Base of the range to search for the coreboot tables" + +config COREBOOT_INFO_RANGE_SIZE + hex "Size of the range to search for the coreboot tables" + default 0x4000000 + + +endif diff --git a/payloads/libpayload/arch/arm/Makefile.inc b/payloads/libpayload/arch/arm/Makefile.inc new file mode 100644 index 0000000..42d6ed2 --- /dev/null +++ b/payloads/libpayload/arch/arm/Makefile.inc @@ -0,0 +1,39 @@ +## +## This file is part of the libpayload project. +## +## Copyright (C) 2008 Advanced Micro Devices, Inc. +## +## Redistribution and use in source and binary forms, with or without +## modification, are permitted provided that the following conditions +## are met: +## 1. Redistributions of source code must retain the above copyright +## notice, this list of conditions and the following disclaimer. +## 2. Redistributions in binary form must reproduce the above copyright +## notice, this list of conditions and the following disclaimer in the +## documentation and/or other materials provided with the distribution. +## 3. The name of the author may not be used to endorse or promote products +## derived from this software without specific prior written permission. +## +## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +## SUCH DAMAGE. +## + +CFLAGS += -ffixed-r8 -mfloat-abi=hard -marm -mabi=aapcs-linux -march=armv7-a + +head.o-y += head.S +libc-y += main.c sysinfo.c +libc-y += timer.c coreboot.c util.S +libc-y += virtual.c +libc-y += memcpy.S memset.S +libc-y += exception_asm.S exception.c +libc-y += cache.c +libcbfs-$(CONFIG_LP_CBFS) += dummy_media.c diff --git a/payloads/libpayload/arch/arm/assembler.h b/payloads/libpayload/arch/arm/assembler.h new file mode 100644 index 0000000..5e4789b --- /dev/null +++ b/payloads/libpayload/arch/arm/assembler.h @@ -0,0 +1,60 @@ +/* + * arch/arm/include/asm/assembler.h + * + * Copyright (C) 1996-2000 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This file contains arm architecture specific defines + * for the different processors. + * + * Do not include any C declarations in this file - it is included by + * assembler source. + */ + +/* + * Endian independent macros for shifting bytes within registers. + */ +#ifndef __ARMEB__ +#define pull lsr +#define push lsl +#define get_byte_0 lsl #0 +#define get_byte_1 lsr #8 +#define get_byte_2 lsr #16 +#define get_byte_3 lsr #24 +#define put_byte_0 lsl #0 +#define put_byte_1 lsl #8 +#define put_byte_2 lsl #16 +#define put_byte_3 lsl #24 +#else +#define pull lsl +#define push lsr +#define get_byte_0 lsr #24 +#define get_byte_1 lsr #16 +#define get_byte_2 lsr #8 +#define get_byte_3 lsl #0 +#define put_byte_0 lsl #24 +#define put_byte_1 lsl #16 +#define put_byte_2 lsl #8 +#define put_byte_3 lsl #0 +#endif + +/* + * Data preload for architectures that support it + */ +#if defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) || \ + defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || \ + defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_6Z__) || \ + defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_7A__) || \ + defined(__ARM_ARCH_7R__) +#define PLD(code...) code +#else +#define PLD(code...) +#endif + +/* + * Cache alligned + */ +#define CALGN(code...) code diff --git a/payloads/libpayload/arch/arm/cache.c b/payloads/libpayload/arch/arm/cache.c new file mode 100644 index 0000000..3944818 --- /dev/null +++ b/payloads/libpayload/arch/arm/cache.c @@ -0,0 +1,329 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * cache.c: Cache maintenance routines for ARMv7-A and ARMv7-R + * + * Reference: ARM Architecture Reference Manual, ARMv7-A and ARMv7-R edition + */ + +#include <stdint.h> + +#include <arch/cache.h> +#include <arch/virtual.h> + +#define bitmask(high, low) ((1UL << (high)) + \ + ((1UL << (high)) - 1) - ((1UL << (low)) - 1)) + +/* Basic log2() implementation. Note: log2(0) is 0 for our purposes. */ +/* FIXME: src/include/lib.h is difficult to work with due to romcc */ +static unsigned long log2(unsigned long u) +{ + int i = 0; + + while (u >>= 1) + i++; + + return i; +} + +void tlb_invalidate_all(void) +{ + /* + * FIXME: ARMv7 Architecture Ref. Manual claims that the distinction + * instruction vs. data TLBs is deprecated in ARMv7, however this does + * not seem to be the case as of Cortex-A15. + */ + tlbiall(); + dtlbiall(); + itlbiall(); + isb(); + dsb(); +} + +void icache_invalidate_all(void) +{ + /* + * icache can be entirely invalidated with one operation. + * Note: If branch predictors are architecturally-visible, ICIALLU + * also performs a BPIALL operation (B2-1283 in arch manual) + */ + iciallu(); + isb(); +} + +enum dcache_op { + OP_DCCSW, + OP_DCCISW, + OP_DCISW, + OP_DCCIMVAC, + OP_DCCMVAC, + OP_DCIMVAC, +}; + +/* + * Do a dcache operation on entire cache by set/way. This is done for + * portability because mapping of memory address to cache location is + * implementation defined (See note on "Requirements for operations by + * set/way" in arch ref. manual). + */ +static void dcache_op_set_way(enum dcache_op op) +{ + uint32_t ccsidr; + unsigned int associativity, num_sets, linesize_bytes; + unsigned int set, way; + unsigned int level; + + level = (read_csselr() >> 1) & 0x7; + + /* + * dcache must be invalidated by set/way for portability since virtual + * memory mapping is system-defined. The number of sets and + * associativity is given by CCSIDR. We'll use DCISW to invalidate the + * dcache. + */ + ccsidr = read_ccsidr(); + + /* FIXME: rounding up required here? */ + num_sets = ((ccsidr & bitmask(27, 13)) >> 13) + 1; + associativity = ((ccsidr & bitmask(12, 3)) >> 3) + 1; + /* FIXME: do we need to use CTR.DminLine here? */ + linesize_bytes = (1 << ((ccsidr & 0x7) + 2)) * 4; + + dsb(); + + /* + * Set/way operations require an interesting bit packing. See section + * B4-35 in the ARMv7 Architecture Reference Manual: + * + * A: Log2(associativity) + * B: L+S + * L: Log2(linesize) + * S: Log2(num_sets) + * + * The bits are packed as follows: + * 31 31-A B B-1 L L-1 4 3 1 0 + * |---|-------------|--------|-------|-----|-| + * |Way| zeros | Set | zeros |level|0| + * |---|-------------|--------|-------|-----|-| + */ + for (way = 0; way < associativity; way++) { + for (set = 0; set < num_sets; set++) { + uint32_t val = 0; + val |= way << (32 - log2(associativity)); + val |= set << log2(linesize_bytes); + val |= level << 1; + switch(op) { + case OP_DCCISW: + dccisw(val); + break; + case OP_DCISW: + dcisw(val); + break; + case OP_DCCSW: + dccsw(val); + break; + default: + break; + } + } + } + isb(); +} + +static void dcache_foreach(enum dcache_op op) +{ + uint32_t clidr; + int level; + + clidr = read_clidr(); + for (level = 0; level < 7; level++) { + unsigned int ctype = (clidr >> (level * 3)) & 0x7; + uint32_t csselr; + + switch(ctype) { + case 0x2: + case 0x3: + case 0x4: + csselr = level << 1; + write_csselr(csselr); + dcache_op_set_way(op); + break; + default: + /* no cache, icache only, or reserved */ + break; + } + } +} + +void dcache_clean_all(void) +{ + dcache_foreach(OP_DCCSW); +} + +void dcache_clean_invalidate_all(void) +{ + dcache_foreach(OP_DCCISW); +} + +void dcache_invalidate_all(void) +{ + dcache_foreach(OP_DCISW); +} + +static unsigned int line_bytes(void) +{ + uint32_t ccsidr; + unsigned int size; + + ccsidr = read_ccsidr(); + /* [2:0] - Indicates (Log2(number of words in cache line)) - 2 */ + size = 1 << ((ccsidr & 0x7) + 2); /* words per line */ + size *= sizeof(unsigned int); /* bytes per line */ + + return size; +} + +/* + * Do a dcache operation by modified virtual address. This is useful for + * maintaining coherency in drivers which do DMA transfers and only need to + * perform cache maintenance on a particular memory range rather than the + * entire cache. + */ +static void dcache_op_mva(void const *vaddr, size_t len, enum dcache_op op) +{ + unsigned long line, linesize; + unsigned long paddr = virt_to_phys(vaddr); + + linesize = line_bytes(); + line = paddr & ~(linesize - 1); + + dsb(); + while (line < paddr + len) { + switch(op) { + case OP_DCCIMVAC: + dccimvac(line); + break; + case OP_DCCMVAC: + dccmvac(line); + break; + case OP_DCIMVAC: + dcimvac(line); + break; + default: + break; + } + line += linesize; + } + isb(); +} + +void dcache_clean_by_mva(void const *addr, size_t len) +{ + dcache_op_mva(addr, len, OP_DCCMVAC); +} + +void dcache_clean_invalidate_by_mva(void const *addr, size_t len) +{ + dcache_op_mva(addr, len, OP_DCCIMVAC); +} + +void dcache_invalidate_by_mva(void const *addr, size_t len) +{ + dcache_op_mva(addr, len, OP_DCIMVAC); +} + +void dcache_mmu_disable(void) +{ + uint32_t sctlr; + + dcache_clean_invalidate_all(); + sctlr = read_sctlr(); + sctlr &= ~(SCTLR_C | SCTLR_M); + write_sctlr(sctlr); +} + +void dcache_mmu_enable(void) +{ + uint32_t sctlr; + + sctlr = read_sctlr(); + dcache_clean_invalidate_all(); + sctlr |= SCTLR_C | SCTLR_M; + write_sctlr(sctlr); +} + +void arm_invalidate_caches(void) +{ + uint32_t clidr; + int level; + + /* Invalidate branch predictor */ + bpiall(); + + /* Iterate thru each cache identified in CLIDR and invalidate */ + clidr = read_clidr(); + for (level = 0; level < 7; level++) { + unsigned int ctype = (clidr >> (level * 3)) & 0x7; + uint32_t csselr; + + switch(ctype) { + case 0x0: + /* no cache */ + break; + case 0x1: + /* icache only */ + csselr = (level << 1) | 1; + write_csselr(csselr); + icache_invalidate_all(); + break; + case 0x2: + case 0x4: + /* dcache only or unified cache */ + csselr = level << 1; + write_csselr(csselr); + dcache_invalidate_all(); + break; + case 0x3: + /* separate icache and dcache */ + csselr = (level << 1) | 1; + write_csselr(csselr); + icache_invalidate_all(); + + csselr = level << 1; + write_csselr(csselr); + dcache_invalidate_all(); + break; + default: + /* reserved */ + break; + } + } + + /* Invalidate TLB */ + tlb_invalidate_all(); +} diff --git a/payloads/libpayload/arch/arm/coreboot.c b/payloads/libpayload/arch/arm/coreboot.c new file mode 100644 index 0000000..1397fc1 --- /dev/null +++ b/payloads/libpayload/arch/arm/coreboot.c @@ -0,0 +1,301 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * Copyright (C) 2009 coresystems GmbH + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <libpayload-config.h> +#include <libpayload.h> +#include <coreboot_tables.h> + +/* + * Some of this is x86 specific, and the rest of it is generic. Right now, + * since we only support x86, we'll avoid trying to make lots of infrastructure + * we don't need. If in the future, we want to use coreboot on some other + * architecture, then take out the generic parsing code and move it elsewhere. + */ + +/* === Parsing code === */ +/* This is the generic parsing code. */ + +static void cb_parse_memory(void *ptr, struct sysinfo_t *info) +{ + struct cb_memory *mem = ptr; + int count = MEM_RANGE_COUNT(mem); + int i; + + if (count > SYSINFO_MAX_MEM_RANGES) + count = SYSINFO_MAX_MEM_RANGES; + + info->n_memranges = 0; + + for (i = 0; i < count; i++) { + struct cb_memory_range *range = MEM_RANGE_PTR(mem, i); + +#ifdef CONFIG_LP_MEMMAP_RAM_ONLY + if (range->type != CB_MEM_RAM) + continue; +#endif + + info->memrange[info->n_memranges].base = + cb_unpack64(range->start); + + info->memrange[info->n_memranges].size = + cb_unpack64(range->size); + + info->memrange[info->n_memranges].type = range->type; + + info->n_memranges++; + } +} + +static void cb_parse_serial(void *ptr, struct sysinfo_t *info) +{ + info->serial = ((struct cb_serial *)ptr); +} + +#ifdef CONFIG_LP_CHROMEOS +static void cb_parse_vbnv(unsigned char *ptr, struct sysinfo_t *info) +{ + struct lb_range *vbnv = (struct lb_range *)ptr; + + info->vbnv_start = vbnv->range_start; + info->vbnv_size = vbnv->range_size; +} + +static void cb_parse_gpios(unsigned char *ptr, struct sysinfo_t *info) +{ + int i; + struct cb_gpios *gpios = (struct cb_gpios *)ptr; + + info->num_gpios = (gpios->count < SYSINFO_MAX_GPIOS) ? + (gpios->count) : SYSINFO_MAX_GPIOS; + + for (i = 0; i < info->num_gpios; i++) + info->gpios[i] = gpios->gpios[i]; +} + +static void cb_parse_vdat(unsigned char *ptr, struct sysinfo_t *info) +{ + struct lb_range *vdat = (struct lb_range *)ptr; + + info->vdat_addr = phys_to_virt(vdat->range_start); + info->vdat_size = vdat->range_size; +} +#endif + +static void cb_parse_dma(unsigned char *ptr) +{ + struct lb_range *dma = (struct lb_range *)ptr; + init_dma_memory(phys_to_virt(dma->range_start), dma->range_size); +} + +static void cb_parse_tstamp(unsigned char *ptr, struct sysinfo_t *info) +{ + struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; + info->tstamp_table = phys_to_virt(cbmem->cbmem_tab); +} + +static void cb_parse_cbmem_cons(unsigned char *ptr, struct sysinfo_t *info) +{ + struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; + info->cbmem_cons = phys_to_virt(cbmem->cbmem_tab); +} + +static void cb_parse_mrc_cache(unsigned char *ptr, struct sysinfo_t *info) +{ + struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; + info->mrc_cache = phys_to_virt(cbmem->cbmem_tab); +} + +#ifdef CONFIG_LP_NVRAM +static void cb_parse_optiontable(void *ptr, struct sysinfo_t *info) +{ + /* ptr points to a coreboot table entry and is already virtual */ + info->option_table = ptr; +} + +static void cb_parse_checksum(void *ptr, struct sysinfo_t *info) +{ + struct cb_cmos_checksum *cmos_cksum = ptr; + info->cmos_range_start = cmos_cksum->range_start; + info->cmos_range_end = cmos_cksum->range_end; + info->cmos_checksum_location = cmos_cksum->location; +} +#endif + +#ifdef CONFIG_LP_COREBOOT_VIDEO_CONSOLE +static void cb_parse_framebuffer(void *ptr, struct sysinfo_t *info) +{ + /* ptr points to a coreboot table entry and is already virtual */ + info->framebuffer = ptr; +} +#endif + +static void cb_parse_string(unsigned char *ptr, char **info) +{ + *info = (char *)((struct cb_string *)ptr)->string; +} + +static int cb_parse_header(void *addr, int len, struct sysinfo_t *info) +{ + struct cb_header *header; + unsigned char *ptr = addr; + void *forward; + int i; + + for (i = 0; i < len; i += 16, ptr += 16) { + header = (struct cb_header *)ptr; + if (!strncmp((const char *)header->signature, "LBIO", 4)) + break; + } + + /* We walked the entire space and didn't find anything. */ + if (i >= len) + return -1; + + if (!header->table_bytes) + return 0; + + /* Make sure the checksums match. */ + if (ipchksum((u16 *) header, sizeof(*header)) != 0) + return -1; + + if (ipchksum((u16 *) (ptr + sizeof(*header)), + header->table_bytes) != header->table_checksum) + return -1; + + info->header = header; + + /* Now, walk the tables. */ + ptr += header->header_bytes; + + for (i = 0; i < header->table_entries; i++) { + struct cb_record *rec = (struct cb_record *)ptr; + + /* We only care about a few tags here (maybe more later). */ + switch (rec->tag) { + case CB_TAG_FORWARD: + forward = phys_to_virt((void *)(unsigned long)((struct cb_forward *)rec)->forward); + return cb_parse_header(forward, len, info); + continue; + case CB_TAG_MEMORY: + cb_parse_memory(ptr, info); + break; + case CB_TAG_SERIAL: + cb_parse_serial(ptr, info); + break; + case CB_TAG_VERSION: + cb_parse_string(ptr, &info->cb_version); + break; + case CB_TAG_EXTRA_VERSION: + cb_parse_string(ptr, &info->extra_version); + break; + case CB_TAG_BUILD: + cb_parse_string(ptr, &info->build); + break; + case CB_TAG_COMPILE_TIME: + cb_parse_string(ptr, &info->compile_time); + break; + case CB_TAG_COMPILE_BY: + cb_parse_string(ptr, &info->compile_by); + break; + case CB_TAG_COMPILE_HOST: + cb_parse_string(ptr, &info->compile_host); + break; + case CB_TAG_COMPILE_DOMAIN: + cb_parse_string(ptr, &info->compile_domain); + break; + case CB_TAG_COMPILER: + cb_parse_string(ptr, &info->compiler); + break; + case CB_TAG_LINKER: + cb_parse_string(ptr, &info->linker); + break; + case CB_TAG_ASSEMBLER: + cb_parse_string(ptr, &info->assembler); + break; +#ifdef CONFIG_LP_NVRAM + case CB_TAG_CMOS_OPTION_TABLE: + cb_parse_optiontable(ptr, info); + break; + case CB_TAG_OPTION_CHECKSUM: + cb_parse_checksum(ptr, info); + break; +#endif +#ifdef CONFIG_LP_COREBOOT_VIDEO_CONSOLE + // FIXME we should warn on serial if coreboot set up a + // framebuffer buf the payload does not know about it. + case CB_TAG_FRAMEBUFFER: + cb_parse_framebuffer(ptr, info); + break; +#endif + case CB_TAG_MAINBOARD: + info->mainboard = (struct cb_mainboard *)ptr; + break; +#ifdef CONFIG_LP_CHROMEOS + case CB_TAG_GPIO: + cb_parse_gpios(ptr, info); + break; + case CB_TAG_VDAT: + cb_parse_vdat(ptr, info); + break; + case CB_TAG_VBNV: + cb_parse_vbnv(ptr, info); + break; +#endif + case CB_TAG_DMA: + cb_parse_dma(ptr); + break; + case CB_TAG_TIMESTAMPS: + cb_parse_tstamp(ptr, info); + break; + case CB_TAG_CBMEM_CONSOLE: + cb_parse_cbmem_cons(ptr, info); + break; + case CB_TAG_MRC_CACHE: + cb_parse_mrc_cache(ptr, info); + break; + } + + ptr += rec->size; + } + + return 1; +} + +/* == Architecture specific == */ +/* FIXME put in actual address range */ + +int get_coreboot_info(struct sysinfo_t *info) +{ + int ret = cb_parse_header( + phys_to_virt(CONFIG_LP_COREBOOT_INFO_RANGE_BASE), + CONFIG_LP_COREBOOT_INFO_RANGE_SIZE, info); + + return (ret == 1) ? 0 : -1; +} diff --git a/payloads/libpayload/arch/arm/dummy_media.c b/payloads/libpayload/arch/arm/dummy_media.c new file mode 100644 index 0000000..7926976 --- /dev/null +++ b/payloads/libpayload/arch/arm/dummy_media.c @@ -0,0 +1,42 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2013 Google, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ +#define LIBPAYLOAD + +#include <cbfs.h> +#include <string.h> + +/* The generic cbfs code relies on the libpayload_init_default_cbfs_media + * symbol. Therefore, provide an implementation that just throws an error. */ + +int libpayload_init_default_cbfs_media(struct cbfs_media *media); + +int libpayload_init_default_cbfs_media(struct cbfs_media *media) +{ + return -1; +} diff --git a/payloads/libpayload/arch/arm/exception.c b/payloads/libpayload/arch/arm/exception.c new file mode 100644 index 0000000..8d8b50b --- /dev/null +++ b/payloads/libpayload/arch/arm/exception.c @@ -0,0 +1,177 @@ +/* + * This file is part of the libpayload project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <arch/exception.h> +#include <libpayload.h> +#include <stdint.h> + +void exception_test(void); + +static int test_abort; + +void exception_undefined_instruction(uint32_t *); +void exception_software_interrupt(uint32_t *); +void exception_prefetch_abort(uint32_t *); +void exception_data_abort(uint32_t *); +void exception_not_used(uint32_t *); +void exception_irq(uint32_t *); +void exception_fiq(uint32_t *); + +static void dump_stack(uintptr_t addr, size_t bytes) +{ + int i, j; + const int line = 8; + uint32_t *ptr = (uint32_t *)(addr & ~(line * sizeof(*ptr) - 1)); + + printf("Dumping stack:\n"); + for (i = bytes / sizeof(*ptr); i >= 0; i -= line) { + printf("%p: ", ptr + i); + for (j = i; j < i + line; j++) + printf("%08x ", *(ptr + j)); + printf("\n"); + } +} + +static void print_regs(uint32_t *regs) +{ + int i; + + for (i = 0; i < 16; i++) { + if (i == 15) + printf("PC"); + else if (i == 14) + printf("LR"); + else if (i == 13) + printf("SP"); + else if (i == 12) + printf("IP"); + else + printf("R%d", i); + printf(" = 0x%08x\n", regs[i]); + } +} + +void exception_undefined_instruction(uint32_t *regs) +{ + printf("exception _undefined_instruction\n"); + print_regs(regs); + dump_stack(regs[13], 512); + halt(); +} + +void exception_software_interrupt(uint32_t *regs) +{ + printf("exception _software_interrupt\n"); + print_regs(regs); + dump_stack(regs[13], 512); + halt(); +} + +void exception_prefetch_abort(uint32_t *regs) +{ + printf("exception _prefetch_abort\n"); + print_regs(regs); + dump_stack(regs[13], 512); + halt(); +} + +void exception_data_abort(uint32_t *regs) +{ + if (test_abort) { + regs[15] = regs[0]; + return; + } else { + printf("exception _data_abort\n"); + print_regs(regs); + dump_stack(regs[13], 512); + } + halt(); +} + +void exception_not_used(uint32_t *regs) +{ + printf("exception _not_used\n"); + print_regs(regs); + dump_stack(regs[13], 512); + halt(); +} + +void exception_irq(uint32_t *regs) +{ + printf("exception _irq\n"); + print_regs(regs); + dump_stack(regs[13], 512); + halt(); +} + +void exception_fiq(uint32_t *regs) +{ + printf("exception _fiq\n"); + print_regs(regs); + dump_stack(regs[13], 512); + halt(); +} + +static inline uint32_t get_sctlr(void) +{ + uint32_t val; + asm("mrc p15, 0, %0, c1, c0, 0" : "=r" (val)); + return val; +} + +static inline void set_sctlr(uint32_t val) +{ + asm volatile("mcr p15, 0, %0, c1, c0, 0" :: "r" (val)); + asm volatile("" ::: "memory"); +} + +void exception_init(void) +{ + static const uint32_t sctlr_te = (0x1 << 30); + static const uint32_t sctlr_v = (0x1 << 13); + static const uint32_t sctlr_a = (0x1 << 1); + + uint32_t sctlr = get_sctlr(); + /* Handle exceptions in ARM mode. */ + sctlr &= ~sctlr_te; + /* Set V=0 in SCTLR so VBAR points to the exception vector table. */ + sctlr &= ~sctlr_v; + /* Enforce alignment temporarily. */ + set_sctlr(sctlr | sctlr_a); + + extern uint32_t exception_table[]; + set_vbar((uintptr_t)exception_table); + + test_abort = 1; + exception_test(); + test_abort = 0; + + /* Restore alignment settings. */ + set_sctlr(sctlr); +} diff --git a/payloads/libpayload/arch/arm/exception_asm.S b/payloads/libpayload/arch/arm/exception_asm.S new file mode 100644 index 0000000..163fdbd --- /dev/null +++ b/payloads/libpayload/arch/arm/exception_asm.S @@ -0,0 +1,116 @@ +/* + * This file is part of the libpayload project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +exception_stack: + .align 5 + .skip 0x2000, 0xa5 +exception_stack_end: + .word exception_stack_end + +exception_handler: + .word 0 + + + .align 6 + .arm + .global exception_table +exception_table: + b 1f + b 2f + b 3f + b 4f + b 5f + b 6f + b 7f + b 8f + +1: + ldr sp, _not_used + b exception_common +2: + ldr sp, _undefined_instruction + b exception_common +3: + ldr sp, _software_interrupt + b exception_common +4: + ldr sp, _prefetch_abort + b exception_common +5: + ldr sp, _data_abort + b exception_common +6: + ldr sp, _not_used + b exception_common +7: + ldr sp, _irq + b exception_common +8: + ldr sp, _fiq + b exception_common + +exception_common: + str sp, exception_handler + ldr sp, exception_stack_end + push { lr } + stmfd sp, { sp, lr }^ + sub sp, sp, $8 + push { r0 - r12 } + mov r0, sp + mov lr, pc + ldr pc, exception_handler + pop { r0 - r12 } + add sp, sp, $8 + ldmfd sp!, { pc }^ + + +_undefined_instruction: .word exception_undefined_instruction +_software_interrupt: .word exception_software_interrupt +_prefetch_abort: .word exception_prefetch_abort +_data_abort: .word exception_data_abort +_not_used: .word exception_not_used +_irq: .word exception_irq +_fiq: .word exception_fiq + + .thumb + .global set_vbar + .thumb_func +set_vbar: + mcr p15, 0, r0, c12, c0, 0 + bx lr + + .global exception_test + .thumb_func +exception_test: + mov r1, $1 + mov r0, pc + add r0, $3 + ldr r1, [r1] + bx lr + diff --git a/payloads/libpayload/arch/arm/head.S b/payloads/libpayload/arch/arm/head.S new file mode 100644 index 0000000..7a706e3 --- /dev/null +++ b/payloads/libpayload/arch/arm/head.S @@ -0,0 +1,59 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + + .global _entry, _leave + .text + .align 4 + +1: +.word _stack + +/* + * Our entry point + */ +_entry: + + /* TODO: disable interrupts */ + + /* TODO: Clear BSS */ + + /* Setup new stack */ + ldr sp, 1b + + /* TODO: Save old stack pointer */ + + /* Let's rock. */ + b start_main + + /* %eax has the return value - pass it on unmolested */ +_leave: + /* TODO: restore old stack pointer. */ + + /* Return to the original context. */ + mov pc, lr diff --git a/payloads/libpayload/arch/arm/libpayload.ldscript b/payloads/libpayload/arch/arm/libpayload.ldscript new file mode 100644 index 0000000..5f65bd7 --- /dev/null +++ b/payloads/libpayload/arch/arm/libpayload.ldscript @@ -0,0 +1,93 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2013 Google, Inc. + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +BASE_ADDRESS = 0x4000000; + +OUTPUT_FORMAT("elf32-littlearm","elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) + +ENTRY(_entry) + +HEAP_SIZE = 2*64*1024; +STACK_SIZE = 16384; + +SECTIONS +{ + . = BASE_ADDRESS; + + . = ALIGN(16); + _start = .; + + .text : { + *(.text._entry) + *(.text) + *(.text.*) + } + + .rodata : { + *(.rodata) + *(.rodata.*) + } + + .data : { + *(.data) + *(.data.*) + } + + _edata = .; + + .bss : { + *(.sbss) + *(.sbss.*) + *(.bss) + *(.bss.*) + *(COMMON) + + /* Stack and heap */ + + . = ALIGN(16); + _heap = .; + . += HEAP_SIZE; + . = ALIGN(16); + _eheap = .; + + _estack = .; + . += STACK_SIZE; + . = ALIGN(16); + _stack = .; + } + + _end = .; + + /DISCARD/ : { + *(.comment) + *(.note*) + } +} diff --git a/payloads/libpayload/arch/arm/main.c b/payloads/libpayload/arch/arm/main.c new file mode 100644 index 0000000..4e7c05d --- /dev/null +++ b/payloads/libpayload/arch/arm/main.c @@ -0,0 +1,73 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <arch/exception.h> +#include <libpayload.h> + +unsigned int main_argc; /**< The argc value to pass to main() */ + +/** The argv value to pass to main() */ +char *main_argv[MAX_ARGC_COUNT]; + +/** + * This is our C entry function - set up the system + * and jump into the payload entry point. + */ +void start_main(void); +void start_main(void) +{ + extern int main(int argc, char **argv); + + /* Gather system information. */ + lib_get_sysinfo(); + + /* Optionally set up the consoles. */ +#ifndef CONFIG_LP_SKIP_CONSOLE_INIT + console_init(); +#endif + + exception_init(); + + /* + * Any other system init that has to happen before the + * user gets control goes here. + */ + + /* + * Go to the entry point. + * In the future we may care about the return value. + */ + + (void) main(main_argc, (main_argc != 0) ? main_argv : NULL); + + /* + * Returning here will go to the _leave function to return + * us to the original context. + */ +} diff --git a/payloads/libpayload/arch/arm/memcpy.S b/payloads/libpayload/arch/arm/memcpy.S new file mode 100644 index 0000000..e68b28f --- /dev/null +++ b/payloads/libpayload/arch/arm/memcpy.S @@ -0,0 +1,244 @@ +/* + * linux/arch/arm/lib/memcpy.S + * + * Author: Nicolas Pitre + * Created: Sep 28, 2005 + * Copyright: MontaVista Software, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include "assembler.h" + +#define W(instr) instr + +#define LDR1W_SHIFT 0 +#define STR1W_SHIFT 0 + + .macro ldr1w ptr reg abort + W(ldr) \reg, [\ptr], #4 + .endm + + .macro ldr4w ptr reg1 reg2 reg3 reg4 abort + ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4} + .endm + + .macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort + ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} + .endm + + .macro ldr1b ptr reg cond=al abort + ldr\cond()b \reg, [\ptr], #1 + .endm + + .macro str1w ptr reg abort + W(str) \reg, [\ptr], #4 + .endm + + .macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort + stmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} + .endm + + .macro str1b ptr reg cond=al abort + str\cond()b \reg, [\ptr], #1 + .endm + + .macro enter reg1 reg2 + stmdb sp!, {r0, \reg1, \reg2} + .endm + + .macro exit reg1 reg2 + ldmfd sp!, {r0, \reg1, \reg2} + .endm + + .text + +/* Prototype: void *memcpy(void *dest, const void *src, size_t n); */ + +.type memcpy, function +.globl memcpy +memcpy: + + cmp r0, r1 + moveq pc, lr + + enter r4, lr + + subs r2, r2, #4 + blt 8f + ands ip, r0, #3 + PLD( pld [r1, #0] ) + bne 9f + ands ip, r1, #3 + bne 10f + +1: subs r2, r2, #(28) + stmfd sp!, {r5 - r8} + blt 5f + + CALGN( ands ip, r0, #31 ) + CALGN( rsb r3, ip, #32 ) + CALGN( sbcnes r4, r3, r2 ) @ C is always set here + CALGN( bcs 2f ) + CALGN( adr r4, 6f ) + CALGN( subs r2, r2, r3 ) @ C gets set + CALGN( add pc, r4, ip ) + + PLD( pld [r1, #0] ) +2: PLD( subs r2, r2, #96 ) + PLD( pld [r1, #28] ) + PLD( blt 4f ) + PLD( pld [r1, #60] ) + PLD( pld [r1, #92] ) + +3: PLD( pld [r1, #124] ) +4: ldr8w r1, r3, r4, r5, r6, r7, r8, ip, lr, abort=20f + subs r2, r2, #32 + str8w r0, r3, r4, r5, r6, r7, r8, ip, lr, abort=20f + bge 3b + PLD( cmn r2, #96 ) + PLD( bge 4b ) + +5: ands ip, r2, #28 + rsb ip, ip, #32 +#if LDR1W_SHIFT > 0 + lsl ip, ip, #LDR1W_SHIFT +#endif + addne pc, pc, ip @ C is always clear here + b 7f +6: + .rept (1 << LDR1W_SHIFT) + W(nop) + .endr + ldr1w r1, r3, abort=20f + ldr1w r1, r4, abort=20f + ldr1w r1, r5, abort=20f + ldr1w r1, r6, abort=20f + ldr1w r1, r7, abort=20f + ldr1w r1, r8, abort=20f + ldr1w r1, lr, abort=20f + +#if LDR1W_SHIFT < STR1W_SHIFT + lsl ip, ip, #STR1W_SHIFT - LDR1W_SHIFT +#elif LDR1W_SHIFT > STR1W_SHIFT + lsr ip, ip, #LDR1W_SHIFT - STR1W_SHIFT +#endif + add pc, pc, ip + nop + .rept (1 << STR1W_SHIFT) + W(nop) + .endr + str1w r0, r3, abort=20f + str1w r0, r4, abort=20f + str1w r0, r5, abort=20f + str1w r0, r6, abort=20f + str1w r0, r7, abort=20f + str1w r0, r8, abort=20f + str1w r0, lr, abort=20f + + CALGN( bcs 2b ) + +7: ldmfd sp!, {r5 - r8} + +8: movs r2, r2, lsl #31 + ldr1b r1, r3, ne, abort=21f + ldr1b r1, r4, cs, abort=21f + ldr1b r1, ip, cs, abort=21f + str1b r0, r3, ne, abort=21f + str1b r0, r4, cs, abort=21f + str1b r0, ip, cs, abort=21f + + exit r4, pc + +9: rsb ip, ip, #4 + cmp ip, #2 + ldr1b r1, r3, gt, abort=21f + ldr1b r1, r4, ge, abort=21f + ldr1b r1, lr, abort=21f + str1b r0, r3, gt, abort=21f + str1b r0, r4, ge, abort=21f + subs r2, r2, ip + str1b r0, lr, abort=21f + blt 8b + ands ip, r1, #3 + beq 1b + +10: bic r1, r1, #3 + cmp ip, #2 + ldr1w r1, lr, abort=21f + beq 17f + bgt 18f + + + .macro forward_copy_shift pull push + + subs r2, r2, #28 + blt 14f + + CALGN( ands ip, r0, #31 ) + CALGN( rsb ip, ip, #32 ) + CALGN( sbcnes r4, ip, r2 ) @ C is always set here + CALGN( subcc r2, r2, ip ) + CALGN( bcc 15f ) + +11: stmfd sp!, {r5 - r9} + + PLD( pld [r1, #0] ) + PLD( subs r2, r2, #96 ) + PLD( pld [r1, #28] ) + PLD( blt 13f ) + PLD( pld [r1, #60] ) + PLD( pld [r1, #92] ) + +12: PLD( pld [r1, #124] ) +13: ldr4w r1, r4, r5, r6, r7, abort=19f + mov r3, lr, pull #\pull + subs r2, r2, #32 + ldr4w r1, r8, r9, ip, lr, abort=19f + orr r3, r3, r4, push #\push + mov r4, r4, pull #\pull + orr r4, r4, r5, push #\push + mov r5, r5, pull #\pull + orr r5, r5, r6, push #\push + mov r6, r6, pull #\pull + orr r6, r6, r7, push #\push + mov r7, r7, pull #\pull + orr r7, r7, r8, push #\push + mov r8, r8, pull #\pull + orr r8, r8, r9, push #\push + mov r9, r9, pull #\pull + orr r9, r9, ip, push #\push + mov ip, ip, pull #\pull + orr ip, ip, lr, push #\push + str8w r0, r3, r4, r5, r6, r7, r8, r9, ip, , abort=19f + bge 12b + PLD( cmn r2, #96 ) + PLD( bge 13b ) + + ldmfd sp!, {r5 - r9} + +14: ands ip, r2, #28 + beq 16f + +15: mov r3, lr, pull #\pull + ldr1w r1, lr, abort=21f + subs ip, ip, #4 + orr r3, r3, lr, push #\push + str1w r0, r3, abort=21f + bgt 15b + CALGN( cmp r2, #0 ) + CALGN( bge 11b ) + +16: sub r1, r1, #(\push / 8) + b 8b + + .endm + + + forward_copy_shift pull=8 push=24 + +17: forward_copy_shift pull=16 push=16 + +18: forward_copy_shift pull=24 push=8 diff --git a/payloads/libpayload/arch/arm/memset.S b/payloads/libpayload/arch/arm/memset.S new file mode 100644 index 0000000..aa4f57a --- /dev/null +++ b/payloads/libpayload/arch/arm/memset.S @@ -0,0 +1,127 @@ +/* + * linux/arch/arm/lib/memset.S + * + * Copyright (C) 1995-2000 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * ASM optimised string functions + */ +#include "assembler.h" + + .text + .align 5 + .word 0 + +1: subs r2, r2, #4 @ 1 do we have enough + blt 5f @ 1 bytes to align with? + cmp r3, #2 @ 1 + strltb r1, [r0], #1 @ 1 + strleb r1, [r0], #1 @ 1 + strb r1, [r0], #1 @ 1 + add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3)) +/* + * The pointer is now aligned and the length is adjusted. Try doing the + * memset again. + */ + +.type memset, function +.globl memset +memset: + ands r3, r0, #3 @ 1 unaligned? + bne 1b @ 1 +/* + * we know that the pointer in r0 is aligned to a word boundary. + */ + orr r1, r1, r1, lsl #8 + orr r1, r1, r1, lsl #16 + mov r3, r1 + cmp r2, #16 + blt 4f + +#if ! CALGN(1)+0 + +/* + * We need an extra register for this loop - save the return address and + * use the LR + */ + str lr, [sp, #-4]! + mov ip, r1 + mov lr, r1 + +2: subs r2, r2, #64 + stmgeia r0!, {r1, r3, ip, lr} @ 64 bytes at a time. + stmgeia r0!, {r1, r3, ip, lr} + stmgeia r0!, {r1, r3, ip, lr} + stmgeia r0!, {r1, r3, ip, lr} + bgt 2b + ldmeqfd sp!, {pc} @ Now <64 bytes to go. +/* + * No need to correct the count; we're only testing bits from now on + */ + tst r2, #32 + stmneia r0!, {r1, r3, ip, lr} + stmneia r0!, {r1, r3, ip, lr} + tst r2, #16 + stmneia r0!, {r1, r3, ip, lr} + ldr lr, [sp], #4 + +#else + +/* + * This version aligns the destination pointer in order to write + * whole cache lines at once. + */ + + stmfd sp!, {r4-r7, lr} + mov r4, r1 + mov r5, r1 + mov r6, r1 + mov r7, r1 + mov ip, r1 + mov lr, r1 + + cmp r2, #96 + tstgt r0, #31 + ble 3f + + and ip, r0, #31 + rsb ip, ip, #32 + sub r2, r2, ip + movs ip, ip, lsl #(32 - 4) + stmcsia r0!, {r4, r5, r6, r7} + stmmiia r0!, {r4, r5} + tst ip, #(1 << 30) + mov ip, r1 + strne r1, [r0], #4 + +3: subs r2, r2, #64 + stmgeia r0!, {r1, r3-r7, ip, lr} + stmgeia r0!, {r1, r3-r7, ip, lr} + bgt 3b + ldmeqfd sp!, {r4-r7, pc} + + tst r2, #32 + stmneia r0!, {r1, r3-r7, ip, lr} + tst r2, #16 + stmneia r0!, {r4-r7} + ldmfd sp!, {r4-r7, lr} + +#endif + +4: tst r2, #8 + stmneia r0!, {r1, r3} + tst r2, #4 + strne r1, [r0], #4 +/* + * When we get here, we've got less than 4 bytes to zero. We + * may have an unaligned pointer as well. + */ +5: tst r2, #2 + strneb r1, [r0], #1 + strneb r1, [r0], #1 + tst r2, #1 + strneb r1, [r0], #1 + mov pc, lr diff --git a/payloads/libpayload/arch/arm/sysinfo.c b/payloads/libpayload/arch/arm/sysinfo.c new file mode 100644 index 0000000..5aa5175 --- /dev/null +++ b/payloads/libpayload/arch/arm/sysinfo.c @@ -0,0 +1,64 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <libpayload-config.h> +#include <libpayload.h> +#include <coreboot_tables.h> + +/** + * This is a global structure that is used through the library - we set it + * up initially with some dummy values - hopefully they will be overridden. + */ +struct sysinfo_t lib_sysinfo = { + .cpu_khz = 200, +}; + +int lib_get_sysinfo(void) +{ + int ret; + + /* Get the CPU speed (for delays). */ + lib_sysinfo.cpu_khz = get_cpu_speed(); + + /* Get information from the coreboot tables, + * if they exist */ + + ret = get_coreboot_info(&lib_sysinfo); + + if (!lib_sysinfo.n_memranges) { + /* If we can't get a good memory range, use the default. */ + lib_sysinfo.n_memranges = 2; + + lib_sysinfo.memrange[0].base = 0; + lib_sysinfo.memrange[0].size = 1024 * 1024; + lib_sysinfo.memrange[0].type = CB_MEM_RAM; + } + + return ret; +} diff --git a/payloads/libpayload/arch/arm/timer.c b/payloads/libpayload/arch/arm/timer.c new file mode 100644 index 0000000..3902308 --- /dev/null +++ b/payloads/libpayload/arch/arm/timer.c @@ -0,0 +1,54 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/** + * @file arm/timer.c + * ARM specific timer routines + */ + +#include <libpayload.h> + +/** + * @ingroup arch + * Global variable containing the speed of the processor in KHz. + */ +u32 cpu_khz; + +/** + * Calculate the speed of the processor for use in delays. + * + * @return The CPU speed in kHz. + */ +unsigned int get_cpu_speed(void) +{ + /* FIXME */ + cpu_khz = 1000000U; + + return cpu_khz; +} diff --git a/payloads/libpayload/arch/arm/util.S b/payloads/libpayload/arch/arm/util.S new file mode 100644 index 0000000..e3f173e --- /dev/null +++ b/payloads/libpayload/arch/arm/util.S @@ -0,0 +1,37 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2012 Google, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + + .global halt + .text + .align 4 + +/* This function puts the system into a halt. */ + .type halt, function +halt: + b halt diff --git a/payloads/libpayload/arch/arm/virtual.c b/payloads/libpayload/arch/arm/virtual.c new file mode 100644 index 0000000..59768db --- /dev/null +++ b/payloads/libpayload/arch/arm/virtual.c @@ -0,0 +1,38 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 coresystems GmbH + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <unistd.h> + +unsigned long virtual_offset = 0; + + +int getpagesize(void) +{ + return 4096; +} diff --git a/payloads/libpayload/arch/armv7/Config.in b/payloads/libpayload/arch/armv7/Config.in deleted file mode 100644 index 79cd676..0000000 --- a/payloads/libpayload/arch/armv7/Config.in +++ /dev/null @@ -1,44 +0,0 @@ -## -## This file is part of the libpayload project. -## -## Copyright (c) 2012 Google Inc. -## -## Redistribution and use in source and binary forms, with or without -## modification, are permitted provided that the following conditions -## are met: -## 1. Redistributions of source code must retain the above copyright -## notice, this list of conditions and the following disclaimer. -## 2. Redistributions in binary form must reproduce the above copyright -## notice, this list of conditions and the following disclaimer in the -## documentation and/or other materials provided with the distribution. -## 3. The name of the author may not be used to endorse or promote products -## derived from this software without specific prior written permission. -## -## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND -## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE -## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -## SUCH DAMAGE. -## - -if ARCH_ARMV7 - -config ARCH_SPECIFIC_OPTIONS # dummy - def_bool y - select LITTLE_ENDIAN - -config COREBOOT_INFO_RANGE_BASE - hex "Base of the range to search for the coreboot tables" - -config COREBOOT_INFO_RANGE_SIZE - hex "Size of the range to search for the coreboot tables" - default 0x4000000 - - -endif diff --git a/payloads/libpayload/arch/armv7/Makefile.inc b/payloads/libpayload/arch/armv7/Makefile.inc deleted file mode 100644 index 42d6ed2..0000000 --- a/payloads/libpayload/arch/armv7/Makefile.inc +++ /dev/null @@ -1,39 +0,0 @@ -## -## This file is part of the libpayload project. -## -## Copyright (C) 2008 Advanced Micro Devices, Inc. -## -## Redistribution and use in source and binary forms, with or without -## modification, are permitted provided that the following conditions -## are met: -## 1. Redistributions of source code must retain the above copyright -## notice, this list of conditions and the following disclaimer. -## 2. Redistributions in binary form must reproduce the above copyright -## notice, this list of conditions and the following disclaimer in the -## documentation and/or other materials provided with the distribution. -## 3. The name of the author may not be used to endorse or promote products -## derived from this software without specific prior written permission. -## -## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND -## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE -## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -## SUCH DAMAGE. -## - -CFLAGS += -ffixed-r8 -mfloat-abi=hard -marm -mabi=aapcs-linux -march=armv7-a - -head.o-y += head.S -libc-y += main.c sysinfo.c -libc-y += timer.c coreboot.c util.S -libc-y += virtual.c -libc-y += memcpy.S memset.S -libc-y += exception_asm.S exception.c -libc-y += cache.c -libcbfs-$(CONFIG_LP_CBFS) += dummy_media.c diff --git a/payloads/libpayload/arch/armv7/assembler.h b/payloads/libpayload/arch/armv7/assembler.h deleted file mode 100644 index 5e4789b..0000000 --- a/payloads/libpayload/arch/armv7/assembler.h +++ /dev/null @@ -1,60 +0,0 @@ -/* - * arch/arm/include/asm/assembler.h - * - * Copyright (C) 1996-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This file contains arm architecture specific defines - * for the different processors. - * - * Do not include any C declarations in this file - it is included by - * assembler source. - */ - -/* - * Endian independent macros for shifting bytes within registers. - */ -#ifndef __ARMEB__ -#define pull lsr -#define push lsl -#define get_byte_0 lsl #0 -#define get_byte_1 lsr #8 -#define get_byte_2 lsr #16 -#define get_byte_3 lsr #24 -#define put_byte_0 lsl #0 -#define put_byte_1 lsl #8 -#define put_byte_2 lsl #16 -#define put_byte_3 lsl #24 -#else -#define pull lsl -#define push lsr -#define get_byte_0 lsr #24 -#define get_byte_1 lsr #16 -#define get_byte_2 lsr #8 -#define get_byte_3 lsl #0 -#define put_byte_0 lsl #24 -#define put_byte_1 lsl #16 -#define put_byte_2 lsl #8 -#define put_byte_3 lsl #0 -#endif - -/* - * Data preload for architectures that support it - */ -#if defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) || \ - defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || \ - defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_6Z__) || \ - defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_7A__) || \ - defined(__ARM_ARCH_7R__) -#define PLD(code...) code -#else -#define PLD(code...) -#endif - -/* - * Cache alligned - */ -#define CALGN(code...) code diff --git a/payloads/libpayload/arch/armv7/cache.c b/payloads/libpayload/arch/armv7/cache.c deleted file mode 100644 index 3af7cbd..0000000 --- a/payloads/libpayload/arch/armv7/cache.c +++ /dev/null @@ -1,330 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2013 Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * cache.c: Cache maintenance routines for ARMv7-A and ARMv7-R - * - * Reference: ARM Architecture Reference Manual, ARMv7-A and ARMv7-R edition - */ - -#include <stdint.h> - -#include <arch/cache.h> -#include <arch/virtual.h> - -#define bitmask(high, low) ((1UL << (high)) + \ - ((1UL << (high)) - 1) - ((1UL << (low)) - 1)) - -/* Basic log2() implementation. Note: log2(0) is 0 for our purposes. */ -/* FIXME: src/include/lib.h is difficult to work with due to romcc */ -static unsigned long log2(unsigned long u) -{ - int i = 0; - - while (u >>= 1) - i++; - - return i; -} - -void tlb_invalidate_all(void) -{ - /* - * FIXME: ARMv7 Architecture Ref. Manual claims that the distinction - * instruction vs. data TLBs is deprecated in ARMv7, however this does - * not seem to be the case as of Cortex-A15. - */ - tlbiall(); - dtlbiall(); - itlbiall(); - isb(); - dsb(); -} - -void icache_invalidate_all(void) -{ - /* - * icache can be entirely invalidated with one operation. - * Note: If branch predictors are architecturally-visible, ICIALLU - * also performs a BPIALL operation (B2-1283 in arch manual) - */ - iciallu(); - isb(); -} - -enum dcache_op { - OP_DCCSW, - OP_DCCISW, - OP_DCISW, - OP_DCCIMVAC, - OP_DCCMVAC, - OP_DCIMVAC, -}; - -/* - * Do a dcache operation on entire cache by set/way. This is done for - * portability because mapping of memory address to cache location is - * implementation defined (See note on "Requirements for operations by - * set/way" in arch ref. manual). - */ -static void dcache_op_set_way(enum dcache_op op) -{ - uint32_t ccsidr; - unsigned int associativity, num_sets, linesize_bytes; - unsigned int set, way; - unsigned int level; - - level = (read_csselr() >> 1) & 0x7; - - /* - * dcache must be invalidated by set/way for portability since virtual - * memory mapping is system-defined. The number of sets and - * associativity is given by CCSIDR. We'll use DCISW to invalidate the - * dcache. - */ - ccsidr = read_ccsidr(); - - /* FIXME: rounding up required here? */ - num_sets = ((ccsidr & bitmask(27, 13)) >> 13) + 1; - associativity = ((ccsidr & bitmask(12, 3)) >> 3) + 1; - /* FIXME: do we need to use CTR.DminLine here? */ - linesize_bytes = (1 << ((ccsidr & 0x7) + 2)) * 4; - - dsb(); - - /* - * Set/way operations require an interesting bit packing. See section - * B4-35 in the ARMv7 Architecture Reference Manual: - * - * A: Log2(associativity) - * B: L+S - * L: Log2(linesize) - * S: Log2(num_sets) - * - * The bits are packed as follows: - * 31 31-A B B-1 L L-1 4 3 1 0 - * |---|-------------|--------|-------|-----|-| - * |Way| zeros | Set | zeros |level|0| - * |---|-------------|--------|-------|-----|-| - */ - for (way = 0; way < associativity; way++) { - for (set = 0; set < num_sets; set++) { - uint32_t val = 0; - val |= way << (32 - log2(associativity)); - val |= set << log2(linesize_bytes); - val |= level << 1; - switch(op) { - case OP_DCCISW: - dccisw(val); - break; - case OP_DCISW: - dcisw(val); - break; - case OP_DCCSW: - dccsw(val); - break; - default: - break; - } - } - } - isb(); -} - -static void dcache_foreach(enum dcache_op op) -{ - uint32_t clidr; - int level; - - clidr = read_clidr(); - for (level = 0; level < 7; level++) { - unsigned int ctype = (clidr >> (level * 3)) & 0x7; - uint32_t csselr; - - switch(ctype) { - case 0x2: - case 0x3: - case 0x4: - csselr = level << 1; - write_csselr(csselr); - dcache_op_set_way(op); - break; - default: - /* no cache, icache only, or reserved */ - break; - } - } -} - -void dcache_clean_all(void) -{ - dcache_foreach(OP_DCCSW); -} - -void dcache_clean_invalidate_all(void) -{ - dcache_foreach(OP_DCCISW); -} - -void dcache_invalidate_all(void) -{ - dcache_foreach(OP_DCISW); -} - -static unsigned int line_bytes(void) -{ - uint32_t ccsidr; - unsigned int size; - - ccsidr = read_ccsidr(); - /* [2:0] - Indicates (Log2(number of words in cache line)) - 2 */ - size = 1 << ((ccsidr & 0x7) + 2); /* words per line */ - size *= sizeof(unsigned int); /* bytes per line */ - - return size; -} - -/* - * Do a dcache operation by modified virtual address. This is useful for - * maintaining coherency in drivers which do DMA transfers and only need to - * perform cache maintenance on a particular memory range rather than the - * entire cache. - */ -static void dcache_op_mva(void const *vaddr, size_t len, enum dcache_op op) -{ - unsigned long line, linesize; - unsigned long paddr = virt_to_phys(vaddr); - - linesize = line_bytes(); - line = paddr & ~(linesize - 1); - - dsb(); - while (line < paddr + len) { - switch(op) { - case OP_DCCIMVAC: - dccimvac(line); - break; - case OP_DCCMVAC: - dccmvac(line); - break; - case OP_DCIMVAC: - dcimvac(line); - break; - default: - break; - } - line += linesize; - } - isb(); -} - -void dcache_clean_by_mva(void const *addr, size_t len) -{ - dcache_op_mva(addr, len, OP_DCCMVAC); -} - -void dcache_clean_invalidate_by_mva(void const *addr, size_t len) -{ - dcache_op_mva(addr, len, OP_DCCIMVAC); -} - -void dcache_invalidate_by_mva(void const *addr, size_t len) -{ - dcache_op_mva(addr, len, OP_DCIMVAC); -} - -void dcache_mmu_disable(void) -{ - uint32_t sctlr; - - dcache_clean_invalidate_all(); - sctlr = read_sctlr(); - sctlr &= ~(SCTLR_C | SCTLR_M); - write_sctlr(sctlr); -} - - -void dcache_mmu_enable(void) -{ - uint32_t sctlr; - - sctlr = read_sctlr(); - dcache_clean_invalidate_all(); - sctlr |= SCTLR_C | SCTLR_M; - write_sctlr(sctlr); -} - -void armv7_invalidate_caches(void) -{ - uint32_t clidr; - int level; - - /* Invalidate branch predictor */ - bpiall(); - - /* Iterate thru each cache identified in CLIDR and invalidate */ - clidr = read_clidr(); - for (level = 0; level < 7; level++) { - unsigned int ctype = (clidr >> (level * 3)) & 0x7; - uint32_t csselr; - - switch(ctype) { - case 0x0: - /* no cache */ - break; - case 0x1: - /* icache only */ - csselr = (level << 1) | 1; - write_csselr(csselr); - icache_invalidate_all(); - break; - case 0x2: - case 0x4: - /* dcache only or unified cache */ - csselr = level << 1; - write_csselr(csselr); - dcache_invalidate_all(); - break; - case 0x3: - /* separate icache and dcache */ - csselr = (level << 1) | 1; - write_csselr(csselr); - icache_invalidate_all(); - - csselr = level << 1; - write_csselr(csselr); - dcache_invalidate_all(); - break; - default: - /* reserved */ - break; - } - } - - /* Invalidate TLB */ - tlb_invalidate_all(); -} diff --git a/payloads/libpayload/arch/armv7/coreboot.c b/payloads/libpayload/arch/armv7/coreboot.c deleted file mode 100644 index 1397fc1..0000000 --- a/payloads/libpayload/arch/armv7/coreboot.c +++ /dev/null @@ -1,301 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2008 Advanced Micro Devices, Inc. - * Copyright (C) 2009 coresystems GmbH - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <libpayload-config.h> -#include <libpayload.h> -#include <coreboot_tables.h> - -/* - * Some of this is x86 specific, and the rest of it is generic. Right now, - * since we only support x86, we'll avoid trying to make lots of infrastructure - * we don't need. If in the future, we want to use coreboot on some other - * architecture, then take out the generic parsing code and move it elsewhere. - */ - -/* === Parsing code === */ -/* This is the generic parsing code. */ - -static void cb_parse_memory(void *ptr, struct sysinfo_t *info) -{ - struct cb_memory *mem = ptr; - int count = MEM_RANGE_COUNT(mem); - int i; - - if (count > SYSINFO_MAX_MEM_RANGES) - count = SYSINFO_MAX_MEM_RANGES; - - info->n_memranges = 0; - - for (i = 0; i < count; i++) { - struct cb_memory_range *range = MEM_RANGE_PTR(mem, i); - -#ifdef CONFIG_LP_MEMMAP_RAM_ONLY - if (range->type != CB_MEM_RAM) - continue; -#endif - - info->memrange[info->n_memranges].base = - cb_unpack64(range->start); - - info->memrange[info->n_memranges].size = - cb_unpack64(range->size); - - info->memrange[info->n_memranges].type = range->type; - - info->n_memranges++; - } -} - -static void cb_parse_serial(void *ptr, struct sysinfo_t *info) -{ - info->serial = ((struct cb_serial *)ptr); -} - -#ifdef CONFIG_LP_CHROMEOS -static void cb_parse_vbnv(unsigned char *ptr, struct sysinfo_t *info) -{ - struct lb_range *vbnv = (struct lb_range *)ptr; - - info->vbnv_start = vbnv->range_start; - info->vbnv_size = vbnv->range_size; -} - -static void cb_parse_gpios(unsigned char *ptr, struct sysinfo_t *info) -{ - int i; - struct cb_gpios *gpios = (struct cb_gpios *)ptr; - - info->num_gpios = (gpios->count < SYSINFO_MAX_GPIOS) ? - (gpios->count) : SYSINFO_MAX_GPIOS; - - for (i = 0; i < info->num_gpios; i++) - info->gpios[i] = gpios->gpios[i]; -} - -static void cb_parse_vdat(unsigned char *ptr, struct sysinfo_t *info) -{ - struct lb_range *vdat = (struct lb_range *)ptr; - - info->vdat_addr = phys_to_virt(vdat->range_start); - info->vdat_size = vdat->range_size; -} -#endif - -static void cb_parse_dma(unsigned char *ptr) -{ - struct lb_range *dma = (struct lb_range *)ptr; - init_dma_memory(phys_to_virt(dma->range_start), dma->range_size); -} - -static void cb_parse_tstamp(unsigned char *ptr, struct sysinfo_t *info) -{ - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->tstamp_table = phys_to_virt(cbmem->cbmem_tab); -} - -static void cb_parse_cbmem_cons(unsigned char *ptr, struct sysinfo_t *info) -{ - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->cbmem_cons = phys_to_virt(cbmem->cbmem_tab); -} - -static void cb_parse_mrc_cache(unsigned char *ptr, struct sysinfo_t *info) -{ - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->mrc_cache = phys_to_virt(cbmem->cbmem_tab); -} - -#ifdef CONFIG_LP_NVRAM -static void cb_parse_optiontable(void *ptr, struct sysinfo_t *info) -{ - /* ptr points to a coreboot table entry and is already virtual */ - info->option_table = ptr; -} - -static void cb_parse_checksum(void *ptr, struct sysinfo_t *info) -{ - struct cb_cmos_checksum *cmos_cksum = ptr; - info->cmos_range_start = cmos_cksum->range_start; - info->cmos_range_end = cmos_cksum->range_end; - info->cmos_checksum_location = cmos_cksum->location; -} -#endif - -#ifdef CONFIG_LP_COREBOOT_VIDEO_CONSOLE -static void cb_parse_framebuffer(void *ptr, struct sysinfo_t *info) -{ - /* ptr points to a coreboot table entry and is already virtual */ - info->framebuffer = ptr; -} -#endif - -static void cb_parse_string(unsigned char *ptr, char **info) -{ - *info = (char *)((struct cb_string *)ptr)->string; -} - -static int cb_parse_header(void *addr, int len, struct sysinfo_t *info) -{ - struct cb_header *header; - unsigned char *ptr = addr; - void *forward; - int i; - - for (i = 0; i < len; i += 16, ptr += 16) { - header = (struct cb_header *)ptr; - if (!strncmp((const char *)header->signature, "LBIO", 4)) - break; - } - - /* We walked the entire space and didn't find anything. */ - if (i >= len) - return -1; - - if (!header->table_bytes) - return 0; - - /* Make sure the checksums match. */ - if (ipchksum((u16 *) header, sizeof(*header)) != 0) - return -1; - - if (ipchksum((u16 *) (ptr + sizeof(*header)), - header->table_bytes) != header->table_checksum) - return -1; - - info->header = header; - - /* Now, walk the tables. */ - ptr += header->header_bytes; - - for (i = 0; i < header->table_entries; i++) { - struct cb_record *rec = (struct cb_record *)ptr; - - /* We only care about a few tags here (maybe more later). */ - switch (rec->tag) { - case CB_TAG_FORWARD: - forward = phys_to_virt((void *)(unsigned long)((struct cb_forward *)rec)->forward); - return cb_parse_header(forward, len, info); - continue; - case CB_TAG_MEMORY: - cb_parse_memory(ptr, info); - break; - case CB_TAG_SERIAL: - cb_parse_serial(ptr, info); - break; - case CB_TAG_VERSION: - cb_parse_string(ptr, &info->cb_version); - break; - case CB_TAG_EXTRA_VERSION: - cb_parse_string(ptr, &info->extra_version); - break; - case CB_TAG_BUILD: - cb_parse_string(ptr, &info->build); - break; - case CB_TAG_COMPILE_TIME: - cb_parse_string(ptr, &info->compile_time); - break; - case CB_TAG_COMPILE_BY: - cb_parse_string(ptr, &info->compile_by); - break; - case CB_TAG_COMPILE_HOST: - cb_parse_string(ptr, &info->compile_host); - break; - case CB_TAG_COMPILE_DOMAIN: - cb_parse_string(ptr, &info->compile_domain); - break; - case CB_TAG_COMPILER: - cb_parse_string(ptr, &info->compiler); - break; - case CB_TAG_LINKER: - cb_parse_string(ptr, &info->linker); - break; - case CB_TAG_ASSEMBLER: - cb_parse_string(ptr, &info->assembler); - break; -#ifdef CONFIG_LP_NVRAM - case CB_TAG_CMOS_OPTION_TABLE: - cb_parse_optiontable(ptr, info); - break; - case CB_TAG_OPTION_CHECKSUM: - cb_parse_checksum(ptr, info); - break; -#endif -#ifdef CONFIG_LP_COREBOOT_VIDEO_CONSOLE - // FIXME we should warn on serial if coreboot set up a - // framebuffer buf the payload does not know about it. - case CB_TAG_FRAMEBUFFER: - cb_parse_framebuffer(ptr, info); - break; -#endif - case CB_TAG_MAINBOARD: - info->mainboard = (struct cb_mainboard *)ptr; - break; -#ifdef CONFIG_LP_CHROMEOS - case CB_TAG_GPIO: - cb_parse_gpios(ptr, info); - break; - case CB_TAG_VDAT: - cb_parse_vdat(ptr, info); - break; - case CB_TAG_VBNV: - cb_parse_vbnv(ptr, info); - break; -#endif - case CB_TAG_DMA: - cb_parse_dma(ptr); - break; - case CB_TAG_TIMESTAMPS: - cb_parse_tstamp(ptr, info); - break; - case CB_TAG_CBMEM_CONSOLE: - cb_parse_cbmem_cons(ptr, info); - break; - case CB_TAG_MRC_CACHE: - cb_parse_mrc_cache(ptr, info); - break; - } - - ptr += rec->size; - } - - return 1; -} - -/* == Architecture specific == */ -/* FIXME put in actual address range */ - -int get_coreboot_info(struct sysinfo_t *info) -{ - int ret = cb_parse_header( - phys_to_virt(CONFIG_LP_COREBOOT_INFO_RANGE_BASE), - CONFIG_LP_COREBOOT_INFO_RANGE_SIZE, info); - - return (ret == 1) ? 0 : -1; -} diff --git a/payloads/libpayload/arch/armv7/dummy_media.c b/payloads/libpayload/arch/armv7/dummy_media.c deleted file mode 100644 index 7926976..0000000 --- a/payloads/libpayload/arch/armv7/dummy_media.c +++ /dev/null @@ -1,42 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2013 Google, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ -#define LIBPAYLOAD - -#include <cbfs.h> -#include <string.h> - -/* The generic cbfs code relies on the libpayload_init_default_cbfs_media - * symbol. Therefore, provide an implementation that just throws an error. */ - -int libpayload_init_default_cbfs_media(struct cbfs_media *media); - -int libpayload_init_default_cbfs_media(struct cbfs_media *media) -{ - return -1; -} diff --git a/payloads/libpayload/arch/armv7/exception.c b/payloads/libpayload/arch/armv7/exception.c deleted file mode 100644 index 8d8b50b..0000000 --- a/payloads/libpayload/arch/armv7/exception.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright 2013 Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <arch/exception.h> -#include <libpayload.h> -#include <stdint.h> - -void exception_test(void); - -static int test_abort; - -void exception_undefined_instruction(uint32_t *); -void exception_software_interrupt(uint32_t *); -void exception_prefetch_abort(uint32_t *); -void exception_data_abort(uint32_t *); -void exception_not_used(uint32_t *); -void exception_irq(uint32_t *); -void exception_fiq(uint32_t *); - -static void dump_stack(uintptr_t addr, size_t bytes) -{ - int i, j; - const int line = 8; - uint32_t *ptr = (uint32_t *)(addr & ~(line * sizeof(*ptr) - 1)); - - printf("Dumping stack:\n"); - for (i = bytes / sizeof(*ptr); i >= 0; i -= line) { - printf("%p: ", ptr + i); - for (j = i; j < i + line; j++) - printf("%08x ", *(ptr + j)); - printf("\n"); - } -} - -static void print_regs(uint32_t *regs) -{ - int i; - - for (i = 0; i < 16; i++) { - if (i == 15) - printf("PC"); - else if (i == 14) - printf("LR"); - else if (i == 13) - printf("SP"); - else if (i == 12) - printf("IP"); - else - printf("R%d", i); - printf(" = 0x%08x\n", regs[i]); - } -} - -void exception_undefined_instruction(uint32_t *regs) -{ - printf("exception _undefined_instruction\n"); - print_regs(regs); - dump_stack(regs[13], 512); - halt(); -} - -void exception_software_interrupt(uint32_t *regs) -{ - printf("exception _software_interrupt\n"); - print_regs(regs); - dump_stack(regs[13], 512); - halt(); -} - -void exception_prefetch_abort(uint32_t *regs) -{ - printf("exception _prefetch_abort\n"); - print_regs(regs); - dump_stack(regs[13], 512); - halt(); -} - -void exception_data_abort(uint32_t *regs) -{ - if (test_abort) { - regs[15] = regs[0]; - return; - } else { - printf("exception _data_abort\n"); - print_regs(regs); - dump_stack(regs[13], 512); - } - halt(); -} - -void exception_not_used(uint32_t *regs) -{ - printf("exception _not_used\n"); - print_regs(regs); - dump_stack(regs[13], 512); - halt(); -} - -void exception_irq(uint32_t *regs) -{ - printf("exception _irq\n"); - print_regs(regs); - dump_stack(regs[13], 512); - halt(); -} - -void exception_fiq(uint32_t *regs) -{ - printf("exception _fiq\n"); - print_regs(regs); - dump_stack(regs[13], 512); - halt(); -} - -static inline uint32_t get_sctlr(void) -{ - uint32_t val; - asm("mrc p15, 0, %0, c1, c0, 0" : "=r" (val)); - return val; -} - -static inline void set_sctlr(uint32_t val) -{ - asm volatile("mcr p15, 0, %0, c1, c0, 0" :: "r" (val)); - asm volatile("" ::: "memory"); -} - -void exception_init(void) -{ - static const uint32_t sctlr_te = (0x1 << 30); - static const uint32_t sctlr_v = (0x1 << 13); - static const uint32_t sctlr_a = (0x1 << 1); - - uint32_t sctlr = get_sctlr(); - /* Handle exceptions in ARM mode. */ - sctlr &= ~sctlr_te; - /* Set V=0 in SCTLR so VBAR points to the exception vector table. */ - sctlr &= ~sctlr_v; - /* Enforce alignment temporarily. */ - set_sctlr(sctlr | sctlr_a); - - extern uint32_t exception_table[]; - set_vbar((uintptr_t)exception_table); - - test_abort = 1; - exception_test(); - test_abort = 0; - - /* Restore alignment settings. */ - set_sctlr(sctlr); -} diff --git a/payloads/libpayload/arch/armv7/exception_asm.S b/payloads/libpayload/arch/armv7/exception_asm.S deleted file mode 100644 index 163fdbd..0000000 --- a/payloads/libpayload/arch/armv7/exception_asm.S +++ /dev/null @@ -1,116 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright 2013 Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -exception_stack: - .align 5 - .skip 0x2000, 0xa5 -exception_stack_end: - .word exception_stack_end - -exception_handler: - .word 0 - - - .align 6 - .arm - .global exception_table -exception_table: - b 1f - b 2f - b 3f - b 4f - b 5f - b 6f - b 7f - b 8f - -1: - ldr sp, _not_used - b exception_common -2: - ldr sp, _undefined_instruction - b exception_common -3: - ldr sp, _software_interrupt - b exception_common -4: - ldr sp, _prefetch_abort - b exception_common -5: - ldr sp, _data_abort - b exception_common -6: - ldr sp, _not_used - b exception_common -7: - ldr sp, _irq - b exception_common -8: - ldr sp, _fiq - b exception_common - -exception_common: - str sp, exception_handler - ldr sp, exception_stack_end - push { lr } - stmfd sp, { sp, lr }^ - sub sp, sp, $8 - push { r0 - r12 } - mov r0, sp - mov lr, pc - ldr pc, exception_handler - pop { r0 - r12 } - add sp, sp, $8 - ldmfd sp!, { pc }^ - - -_undefined_instruction: .word exception_undefined_instruction -_software_interrupt: .word exception_software_interrupt -_prefetch_abort: .word exception_prefetch_abort -_data_abort: .word exception_data_abort -_not_used: .word exception_not_used -_irq: .word exception_irq -_fiq: .word exception_fiq - - .thumb - .global set_vbar - .thumb_func -set_vbar: - mcr p15, 0, r0, c12, c0, 0 - bx lr - - .global exception_test - .thumb_func -exception_test: - mov r1, $1 - mov r0, pc - add r0, $3 - ldr r1, [r1] - bx lr - diff --git a/payloads/libpayload/arch/armv7/head.S b/payloads/libpayload/arch/armv7/head.S deleted file mode 100644 index 7a706e3..0000000 --- a/payloads/libpayload/arch/armv7/head.S +++ /dev/null @@ -1,59 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2008 Advanced Micro Devices, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - - .global _entry, _leave - .text - .align 4 - -1: -.word _stack - -/* - * Our entry point - */ -_entry: - - /* TODO: disable interrupts */ - - /* TODO: Clear BSS */ - - /* Setup new stack */ - ldr sp, 1b - - /* TODO: Save old stack pointer */ - - /* Let's rock. */ - b start_main - - /* %eax has the return value - pass it on unmolested */ -_leave: - /* TODO: restore old stack pointer. */ - - /* Return to the original context. */ - mov pc, lr diff --git a/payloads/libpayload/arch/armv7/libpayload.ldscript b/payloads/libpayload/arch/armv7/libpayload.ldscript deleted file mode 100644 index 5f65bd7..0000000 --- a/payloads/libpayload/arch/armv7/libpayload.ldscript +++ /dev/null @@ -1,93 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2013 Google, Inc. - * Copyright (C) 2008 Advanced Micro Devices, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -BASE_ADDRESS = 0x4000000; - -OUTPUT_FORMAT("elf32-littlearm","elf32-littlearm", "elf32-littlearm") -OUTPUT_ARCH(arm) - -ENTRY(_entry) - -HEAP_SIZE = 2*64*1024; -STACK_SIZE = 16384; - -SECTIONS -{ - . = BASE_ADDRESS; - - . = ALIGN(16); - _start = .; - - .text : { - *(.text._entry) - *(.text) - *(.text.*) - } - - .rodata : { - *(.rodata) - *(.rodata.*) - } - - .data : { - *(.data) - *(.data.*) - } - - _edata = .; - - .bss : { - *(.sbss) - *(.sbss.*) - *(.bss) - *(.bss.*) - *(COMMON) - - /* Stack and heap */ - - . = ALIGN(16); - _heap = .; - . += HEAP_SIZE; - . = ALIGN(16); - _eheap = .; - - _estack = .; - . += STACK_SIZE; - . = ALIGN(16); - _stack = .; - } - - _end = .; - - /DISCARD/ : { - *(.comment) - *(.note*) - } -} diff --git a/payloads/libpayload/arch/armv7/main.c b/payloads/libpayload/arch/armv7/main.c deleted file mode 100644 index 4e7c05d..0000000 --- a/payloads/libpayload/arch/armv7/main.c +++ /dev/null @@ -1,73 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2008 Advanced Micro Devices, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <arch/exception.h> -#include <libpayload.h> - -unsigned int main_argc; /**< The argc value to pass to main() */ - -/** The argv value to pass to main() */ -char *main_argv[MAX_ARGC_COUNT]; - -/** - * This is our C entry function - set up the system - * and jump into the payload entry point. - */ -void start_main(void); -void start_main(void) -{ - extern int main(int argc, char **argv); - - /* Gather system information. */ - lib_get_sysinfo(); - - /* Optionally set up the consoles. */ -#ifndef CONFIG_LP_SKIP_CONSOLE_INIT - console_init(); -#endif - - exception_init(); - - /* - * Any other system init that has to happen before the - * user gets control goes here. - */ - - /* - * Go to the entry point. - * In the future we may care about the return value. - */ - - (void) main(main_argc, (main_argc != 0) ? main_argv : NULL); - - /* - * Returning here will go to the _leave function to return - * us to the original context. - */ -} diff --git a/payloads/libpayload/arch/armv7/memcpy.S b/payloads/libpayload/arch/armv7/memcpy.S deleted file mode 100644 index e68b28f..0000000 --- a/payloads/libpayload/arch/armv7/memcpy.S +++ /dev/null @@ -1,244 +0,0 @@ -/* - * linux/arch/arm/lib/memcpy.S - * - * Author: Nicolas Pitre - * Created: Sep 28, 2005 - * Copyright: MontaVista Software, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include "assembler.h" - -#define W(instr) instr - -#define LDR1W_SHIFT 0 -#define STR1W_SHIFT 0 - - .macro ldr1w ptr reg abort - W(ldr) \reg, [\ptr], #4 - .endm - - .macro ldr4w ptr reg1 reg2 reg3 reg4 abort - ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4} - .endm - - .macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort - ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} - .endm - - .macro ldr1b ptr reg cond=al abort - ldr\cond()b \reg, [\ptr], #1 - .endm - - .macro str1w ptr reg abort - W(str) \reg, [\ptr], #4 - .endm - - .macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort - stmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} - .endm - - .macro str1b ptr reg cond=al abort - str\cond()b \reg, [\ptr], #1 - .endm - - .macro enter reg1 reg2 - stmdb sp!, {r0, \reg1, \reg2} - .endm - - .macro exit reg1 reg2 - ldmfd sp!, {r0, \reg1, \reg2} - .endm - - .text - -/* Prototype: void *memcpy(void *dest, const void *src, size_t n); */ - -.type memcpy, function -.globl memcpy -memcpy: - - cmp r0, r1 - moveq pc, lr - - enter r4, lr - - subs r2, r2, #4 - blt 8f - ands ip, r0, #3 - PLD( pld [r1, #0] ) - bne 9f - ands ip, r1, #3 - bne 10f - -1: subs r2, r2, #(28) - stmfd sp!, {r5 - r8} - blt 5f - - CALGN( ands ip, r0, #31 ) - CALGN( rsb r3, ip, #32 ) - CALGN( sbcnes r4, r3, r2 ) @ C is always set here - CALGN( bcs 2f ) - CALGN( adr r4, 6f ) - CALGN( subs r2, r2, r3 ) @ C gets set - CALGN( add pc, r4, ip ) - - PLD( pld [r1, #0] ) -2: PLD( subs r2, r2, #96 ) - PLD( pld [r1, #28] ) - PLD( blt 4f ) - PLD( pld [r1, #60] ) - PLD( pld [r1, #92] ) - -3: PLD( pld [r1, #124] ) -4: ldr8w r1, r3, r4, r5, r6, r7, r8, ip, lr, abort=20f - subs r2, r2, #32 - str8w r0, r3, r4, r5, r6, r7, r8, ip, lr, abort=20f - bge 3b - PLD( cmn r2, #96 ) - PLD( bge 4b ) - -5: ands ip, r2, #28 - rsb ip, ip, #32 -#if LDR1W_SHIFT > 0 - lsl ip, ip, #LDR1W_SHIFT -#endif - addne pc, pc, ip @ C is always clear here - b 7f -6: - .rept (1 << LDR1W_SHIFT) - W(nop) - .endr - ldr1w r1, r3, abort=20f - ldr1w r1, r4, abort=20f - ldr1w r1, r5, abort=20f - ldr1w r1, r6, abort=20f - ldr1w r1, r7, abort=20f - ldr1w r1, r8, abort=20f - ldr1w r1, lr, abort=20f - -#if LDR1W_SHIFT < STR1W_SHIFT - lsl ip, ip, #STR1W_SHIFT - LDR1W_SHIFT -#elif LDR1W_SHIFT > STR1W_SHIFT - lsr ip, ip, #LDR1W_SHIFT - STR1W_SHIFT -#endif - add pc, pc, ip - nop - .rept (1 << STR1W_SHIFT) - W(nop) - .endr - str1w r0, r3, abort=20f - str1w r0, r4, abort=20f - str1w r0, r5, abort=20f - str1w r0, r6, abort=20f - str1w r0, r7, abort=20f - str1w r0, r8, abort=20f - str1w r0, lr, abort=20f - - CALGN( bcs 2b ) - -7: ldmfd sp!, {r5 - r8} - -8: movs r2, r2, lsl #31 - ldr1b r1, r3, ne, abort=21f - ldr1b r1, r4, cs, abort=21f - ldr1b r1, ip, cs, abort=21f - str1b r0, r3, ne, abort=21f - str1b r0, r4, cs, abort=21f - str1b r0, ip, cs, abort=21f - - exit r4, pc - -9: rsb ip, ip, #4 - cmp ip, #2 - ldr1b r1, r3, gt, abort=21f - ldr1b r1, r4, ge, abort=21f - ldr1b r1, lr, abort=21f - str1b r0, r3, gt, abort=21f - str1b r0, r4, ge, abort=21f - subs r2, r2, ip - str1b r0, lr, abort=21f - blt 8b - ands ip, r1, #3 - beq 1b - -10: bic r1, r1, #3 - cmp ip, #2 - ldr1w r1, lr, abort=21f - beq 17f - bgt 18f - - - .macro forward_copy_shift pull push - - subs r2, r2, #28 - blt 14f - - CALGN( ands ip, r0, #31 ) - CALGN( rsb ip, ip, #32 ) - CALGN( sbcnes r4, ip, r2 ) @ C is always set here - CALGN( subcc r2, r2, ip ) - CALGN( bcc 15f ) - -11: stmfd sp!, {r5 - r9} - - PLD( pld [r1, #0] ) - PLD( subs r2, r2, #96 ) - PLD( pld [r1, #28] ) - PLD( blt 13f ) - PLD( pld [r1, #60] ) - PLD( pld [r1, #92] ) - -12: PLD( pld [r1, #124] ) -13: ldr4w r1, r4, r5, r6, r7, abort=19f - mov r3, lr, pull #\pull - subs r2, r2, #32 - ldr4w r1, r8, r9, ip, lr, abort=19f - orr r3, r3, r4, push #\push - mov r4, r4, pull #\pull - orr r4, r4, r5, push #\push - mov r5, r5, pull #\pull - orr r5, r5, r6, push #\push - mov r6, r6, pull #\pull - orr r6, r6, r7, push #\push - mov r7, r7, pull #\pull - orr r7, r7, r8, push #\push - mov r8, r8, pull #\pull - orr r8, r8, r9, push #\push - mov r9, r9, pull #\pull - orr r9, r9, ip, push #\push - mov ip, ip, pull #\pull - orr ip, ip, lr, push #\push - str8w r0, r3, r4, r5, r6, r7, r8, r9, ip, , abort=19f - bge 12b - PLD( cmn r2, #96 ) - PLD( bge 13b ) - - ldmfd sp!, {r5 - r9} - -14: ands ip, r2, #28 - beq 16f - -15: mov r3, lr, pull #\pull - ldr1w r1, lr, abort=21f - subs ip, ip, #4 - orr r3, r3, lr, push #\push - str1w r0, r3, abort=21f - bgt 15b - CALGN( cmp r2, #0 ) - CALGN( bge 11b ) - -16: sub r1, r1, #(\push / 8) - b 8b - - .endm - - - forward_copy_shift pull=8 push=24 - -17: forward_copy_shift pull=16 push=16 - -18: forward_copy_shift pull=24 push=8 diff --git a/payloads/libpayload/arch/armv7/memset.S b/payloads/libpayload/arch/armv7/memset.S deleted file mode 100644 index aa4f57a..0000000 --- a/payloads/libpayload/arch/armv7/memset.S +++ /dev/null @@ -1,127 +0,0 @@ -/* - * linux/arch/arm/lib/memset.S - * - * Copyright (C) 1995-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * ASM optimised string functions - */ -#include "assembler.h" - - .text - .align 5 - .word 0 - -1: subs r2, r2, #4 @ 1 do we have enough - blt 5f @ 1 bytes to align with? - cmp r3, #2 @ 1 - strltb r1, [r0], #1 @ 1 - strleb r1, [r0], #1 @ 1 - strb r1, [r0], #1 @ 1 - add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3)) -/* - * The pointer is now aligned and the length is adjusted. Try doing the - * memset again. - */ - -.type memset, function -.globl memset -memset: - ands r3, r0, #3 @ 1 unaligned? - bne 1b @ 1 -/* - * we know that the pointer in r0 is aligned to a word boundary. - */ - orr r1, r1, r1, lsl #8 - orr r1, r1, r1, lsl #16 - mov r3, r1 - cmp r2, #16 - blt 4f - -#if ! CALGN(1)+0 - -/* - * We need an extra register for this loop - save the return address and - * use the LR - */ - str lr, [sp, #-4]! - mov ip, r1 - mov lr, r1 - -2: subs r2, r2, #64 - stmgeia r0!, {r1, r3, ip, lr} @ 64 bytes at a time. - stmgeia r0!, {r1, r3, ip, lr} - stmgeia r0!, {r1, r3, ip, lr} - stmgeia r0!, {r1, r3, ip, lr} - bgt 2b - ldmeqfd sp!, {pc} @ Now <64 bytes to go. -/* - * No need to correct the count; we're only testing bits from now on - */ - tst r2, #32 - stmneia r0!, {r1, r3, ip, lr} - stmneia r0!, {r1, r3, ip, lr} - tst r2, #16 - stmneia r0!, {r1, r3, ip, lr} - ldr lr, [sp], #4 - -#else - -/* - * This version aligns the destination pointer in order to write - * whole cache lines at once. - */ - - stmfd sp!, {r4-r7, lr} - mov r4, r1 - mov r5, r1 - mov r6, r1 - mov r7, r1 - mov ip, r1 - mov lr, r1 - - cmp r2, #96 - tstgt r0, #31 - ble 3f - - and ip, r0, #31 - rsb ip, ip, #32 - sub r2, r2, ip - movs ip, ip, lsl #(32 - 4) - stmcsia r0!, {r4, r5, r6, r7} - stmmiia r0!, {r4, r5} - tst ip, #(1 << 30) - mov ip, r1 - strne r1, [r0], #4 - -3: subs r2, r2, #64 - stmgeia r0!, {r1, r3-r7, ip, lr} - stmgeia r0!, {r1, r3-r7, ip, lr} - bgt 3b - ldmeqfd sp!, {r4-r7, pc} - - tst r2, #32 - stmneia r0!, {r1, r3-r7, ip, lr} - tst r2, #16 - stmneia r0!, {r4-r7} - ldmfd sp!, {r4-r7, lr} - -#endif - -4: tst r2, #8 - stmneia r0!, {r1, r3} - tst r2, #4 - strne r1, [r0], #4 -/* - * When we get here, we've got less than 4 bytes to zero. We - * may have an unaligned pointer as well. - */ -5: tst r2, #2 - strneb r1, [r0], #1 - strneb r1, [r0], #1 - tst r2, #1 - strneb r1, [r0], #1 - mov pc, lr diff --git a/payloads/libpayload/arch/armv7/sysinfo.c b/payloads/libpayload/arch/armv7/sysinfo.c deleted file mode 100644 index 5aa5175..0000000 --- a/payloads/libpayload/arch/armv7/sysinfo.c +++ /dev/null @@ -1,64 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2008 Advanced Micro Devices, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <libpayload-config.h> -#include <libpayload.h> -#include <coreboot_tables.h> - -/** - * This is a global structure that is used through the library - we set it - * up initially with some dummy values - hopefully they will be overridden. - */ -struct sysinfo_t lib_sysinfo = { - .cpu_khz = 200, -}; - -int lib_get_sysinfo(void) -{ - int ret; - - /* Get the CPU speed (for delays). */ - lib_sysinfo.cpu_khz = get_cpu_speed(); - - /* Get information from the coreboot tables, - * if they exist */ - - ret = get_coreboot_info(&lib_sysinfo); - - if (!lib_sysinfo.n_memranges) { - /* If we can't get a good memory range, use the default. */ - lib_sysinfo.n_memranges = 2; - - lib_sysinfo.memrange[0].base = 0; - lib_sysinfo.memrange[0].size = 1024 * 1024; - lib_sysinfo.memrange[0].type = CB_MEM_RAM; - } - - return ret; -} diff --git a/payloads/libpayload/arch/armv7/timer.c b/payloads/libpayload/arch/armv7/timer.c deleted file mode 100644 index 9449c9f..0000000 --- a/payloads/libpayload/arch/armv7/timer.c +++ /dev/null @@ -1,54 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2008 Advanced Micro Devices, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/** - * @file armv7/timer.c - * ARMv7 specific timer routines - */ - -#include <libpayload.h> - -/** - * @ingroup arch - * Global variable containing the speed of the processor in KHz. - */ -u32 cpu_khz; - -/** - * Calculate the speed of the processor for use in delays. - * - * @return The CPU speed in kHz. - */ -unsigned int get_cpu_speed(void) -{ - /* FIXME */ - cpu_khz = 1000000U; - - return cpu_khz; -} diff --git a/payloads/libpayload/arch/armv7/util.S b/payloads/libpayload/arch/armv7/util.S deleted file mode 100644 index e3f173e..0000000 --- a/payloads/libpayload/arch/armv7/util.S +++ /dev/null @@ -1,37 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2012 Google, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - - .global halt - .text - .align 4 - -/* This function puts the system into a halt. */ - .type halt, function -halt: - b halt diff --git a/payloads/libpayload/arch/armv7/virtual.c b/payloads/libpayload/arch/armv7/virtual.c deleted file mode 100644 index 59768db..0000000 --- a/payloads/libpayload/arch/armv7/virtual.c +++ /dev/null @@ -1,38 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2008 coresystems GmbH - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <unistd.h> - -unsigned long virtual_offset = 0; - - -int getpagesize(void) -{ - return 4096; -} diff --git a/payloads/libpayload/bin/lpgcc b/payloads/libpayload/bin/lpgcc index 32ec568..a555bcb 100755 --- a/payloads/libpayload/bin/lpgcc +++ b/payloads/libpayload/bin/lpgcc @@ -68,11 +68,11 @@ else exit 1 fi
-if [ "$CONFIG_LP_ARCH_ARMV7" = "y" ]; then - _ARCHINCDIR=$_INCDIR/armv7 - _ARCHLIBDIR=$_LIBDIR/armv7 +if [ "$CONFIG_LP_ARCH_ARM" = "y" ]; then + _ARCHINCDIR=$_INCDIR/arm + _ARCHLIBDIR=$_LIBDIR/arm _ARCHEXTRA="" - _ARCH=armv7 + _ARCH=arm fi
if [ "$CONFIG_LP_ARCH_X86" = "y" ]; then diff --git a/payloads/libpayload/configs/config.panther b/payloads/libpayload/configs/config.panther index ec0f11d..e3af099 100644 --- a/payloads/libpayload/configs/config.panther +++ b/payloads/libpayload/configs/config.panther @@ -15,7 +15,7 @@ CONFIG_LP_CHROMEOS=y # # Architecture Options # -# CONFIG_LP_ARCH_ARMV7 is not set +# CONFIG_LP_ARCH_ARM is not set # CONFIG_LP_ARCH_POWERPC is not set CONFIG_LP_ARCH_X86=y # CONFIG_LP_MEMMAP_RAM_ONLY is not set diff --git a/payloads/libpayload/configs/defconfig b/payloads/libpayload/configs/defconfig index aef9fc3..f63822e 100644 --- a/payloads/libpayload/configs/defconfig +++ b/payloads/libpayload/configs/defconfig @@ -15,7 +15,7 @@ # # Architecture Options # -# CONFIG_LP_ARCH_ARMV7 is not set +# CONFIG_LP_ARCH_ARM is not set CONFIG_LP_ARCH_X86=y # CONFIG_LP_MEMMAP_RAM_ONLY is not set # CONFIG_LP_MULTIBOOT is not set diff --git a/payloads/libpayload/configs/defconfig-arm b/payloads/libpayload/configs/defconfig-arm index 55552b0..e336f6a 100644 --- a/payloads/libpayload/configs/defconfig-arm +++ b/payloads/libpayload/configs/defconfig-arm @@ -15,7 +15,7 @@ # # Architecture Options # -CONFIG_LP_ARCH_ARMV7=y +CONFIG_LP_ARCH_ARM=y # CONFIG_LP_ARCH_X86 is not set # CONFIG_LP_MEMMAP_RAM_ONLY is not set
@@ -35,6 +35,7 @@ CONFIG_LP_LZMA=y # CONFIG_LP_SKIP_CONSOLE_INIT is not set CONFIG_LP_CBMEM_CONSOLE=y CONFIG_LP_SERIAL_CONSOLE=y +# CONFIG_LP_8250_SERIAL_CONSOLE is not set # CONFIG_LP_SERIAL_SET_SPEED is not set # CONFIG_LP_SERIAL_ACS_FALLBACK is not set CONFIG_LP_VIDEO_CONSOLE=y @@ -60,10 +61,6 @@ CONFIG_LP_USB_HUB=y CONFIG_LP_USB_MSC=y CONFIG_LP_USB_GEN_HUB=y # CONFIG_LP_USB_PCI is not set -CONFIG_LP_USB_MEMORY=y -CONFIG_LP_USB_OHCI_BASE_ADDRESS=0x12120000 -CONFIG_LP_USB_EHCI_BASE_ADDRESS=0x12110000 -CONFIG_LP_USB_XHCI_BASE_ADDRESS=0x12000000 # CONFIG_LP_BIG_ENDIAN is not set CONFIG_LP_LITTLE_ENDIAN=y # CONFIG_LP_IO_ADDRESS_SPACE is not set diff --git a/payloads/libpayload/include/arm/arch/cache.h b/payloads/libpayload/include/arm/arch/cache.h new file mode 100644 index 0000000..ffdb55a --- /dev/null +++ b/payloads/libpayload/include/arm/arch/cache.h @@ -0,0 +1,341 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * cache.h: Cache maintenance API for ARM + */ + +#ifndef ARM_CACHE_H +#define ARM_CACHE_H + +#include <stddef.h> +#include <stdint.h> + +/* SCTLR bits */ +#define SCTLR_M (1 << 0) /* MMU enable */ +#define SCTLR_A (1 << 1) /* Alignment check enable */ +#define SCTLR_C (1 << 2) /* Data/unified cache enable */ +/* Bits 4:3 are reserved */ +#define SCTLR_CP15BEN (1 << 5) /* CP15 barrier enable */ +/* Bit 6 is reserved */ +#define SCTLR_B (1 << 7) /* Endianness */ +/* Bits 9:8 */ +#define SCTLR_SW (1 << 10) /* SWP and SWPB enable */ +#define SCTLR_Z (1 << 11) /* Branch prediction enable */ +#define SCTLR_I (1 << 12) /* Instruction cache enable */ +#define SCTLR_V (1 << 13) /* Low/high exception vectors */ +#define SCTLR_RR (1 << 14) /* Round Robin select */ +/* Bits 16:15 are reserved */ +#define SCTLR_HA (1 << 17) /* Hardware Access flag enable */ +/* Bit 18 is reserved */ +/* Bits 20:19 reserved virtualization not supported */ +#define SCTLR_WXN (1 << 19) /* Write permission implies XN */ +#define SCTLR_UWXN (1 << 20) /* Unprivileged write permission + implies PL1 XN */ +#define SCTLR_FI (1 << 21) /* Fast interrupt config enable */ +#define SCTLR_U (1 << 22) /* Unaligned access behavior */ +#define SCTLR_VE (1 << 24) /* Interrupt vectors enable */ +#define SCTLR_EE (1 << 25) /* Exception endianness */ +/* Bit 26 is reserved */ +#define SCTLR_NMFI (1 << 27) /* Non-maskable FIQ support */ +#define SCTLR_TRE (1 << 28) /* TEX remap enable */ +#define SCTLR_AFE (1 << 29) /* Access flag enable */ +#define SCTLR_TE (1 << 30) /* Thumb exception enable */ +/* Bit 31 is reserved */ + +/* + * Sync primitives + */ + +/* data memory barrier */ +static inline void dmb(void) +{ + asm volatile ("dmb" : : : "memory"); +} + +/* data sync barrier */ +static inline void dsb(void) +{ + asm volatile ("dsb" : : : "memory"); +} + +/* instruction sync barrier */ +static inline void isb(void) +{ + asm volatile ("isb" : : : "memory"); +} + +/* + * Low-level TLB maintenance operations + */ + +/* invalidate entire data TLB */ +static inline void dtlbiall(void) +{ + asm volatile ("mcr p15, 0, %0, c8, c6, 0" : : "r" (0) : "memory"); +} + +/* invalidate entire instruction TLB */ +static inline void itlbiall(void) +{ + asm volatile ("mcr p15, 0, %0, c8, c5, 0" : : "r" (0)); +} + +/* invalidate entire unified TLB */ +static inline void tlbiall(void) +{ + asm volatile ("mcr p15, 0, %0, c8, c7, 0" : : "r" (0) : "memory"); +} + +/* invalidate unified TLB by MVA, all ASID */ +static inline void tlbimvaa(unsigned long mva) +{ + asm volatile ("mcr p15, 0, %0, c8, c7, 3" : : "r" (mva) : "memory"); +} + +/* write data access control register (DACR) */ +static inline void write_dacr(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c3, c0, 0" : : "r" (val)); +} + +/* write translation table base register 0 (TTBR0) */ +static inline void write_ttbr0(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c2, c0, 0" : : "r" (val) : "memory"); +} + +/* read translation table base control register (TTBCR) */ +static inline uint32_t read_ttbcr(void) +{ + uint32_t val = 0; + asm volatile ("mrc p15, 0, %0, c2, c0, 2" : "=r" (val)); + return val; +} + +/* write translation table base control register (TTBCR) */ +static inline void write_ttbcr(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c2, c0, 2" : : "r" (val) : "memory"); +} + +/* + * Low-level cache maintenance operations + */ + +/* branch predictor invalidate all */ +static inline void bpiall(void) +{ + asm volatile ("mcr p15, 0, %0, c7, c5, 6" : : "r" (0)); +} + +/* data cache clean and invalidate by MVA to PoC */ +static inline void dccimvac(unsigned long mva) +{ + asm volatile ("mcr p15, 0, %0, c7, c14, 1" : : "r" (mva) : "memory"); +} + +/* data cache invalidate by set/way */ +static inline void dccisw(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c7, c14, 2" : : "r" (val) : "memory"); +} + +/* data cache clean by MVA to PoC */ +static inline void dccmvac(unsigned long mva) +{ + asm volatile ("mcr p15, 0, %0, c7, c10, 1" : : "r" (mva) : "memory"); +} + +/* data cache clean by set/way */ +static inline void dccsw(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c7, c10, 2" : : "r" (val) : "memory"); +} + +/* data cache invalidate by MVA to PoC */ +static inline void dcimvac(unsigned long mva) +{ + asm volatile ("mcr p15, 0, %0, c7, c6, 1" : : "r" (mva) : "memory"); +} + +/* data cache invalidate by set/way */ +static inline void dcisw(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c7, c6, 2" : : "r" (val) : "memory"); +} + +/* instruction cache invalidate all by PoU */ +static inline void iciallu(void) +{ + asm volatile ("mcr p15, 0, %0, c7, c5, 0" : : "r" (0)); +} + +/* + * Cache co-processor (CP15) access functions + */ + +/* read cache level ID register (CLIDR) */ +static inline uint32_t read_clidr(void) +{ + uint32_t val = 0; + asm volatile ("mrc p15, 1, %0, c0, c0, 1" : "=r" (val)); + return val; +} + +/* read cache size ID register register (CCSIDR) */ +static inline uint32_t read_ccsidr(void) +{ + uint32_t val = 0; + asm volatile ("mrc p15, 1, %0, c0, c0, 0" : "=r" (val)); + return val; +} + +/* read cache size selection register (CSSELR) */ +static inline uint32_t read_csselr(void) +{ + uint32_t val = 0; + asm volatile ("mrc p15, 2, %0, c0, c0, 0" : "=r" (val)); + return val; +} + +/* write to cache size selection register (CSSELR) */ +static inline void write_csselr(uint32_t val) +{ + /* + * Bits [3:1] - Cache level + 1 (0b000 = L1, 0b110 = L7, 0b111 is rsvd) + * Bit 0 - 0 = data or unified cache, 1 = instruction cache + */ + asm volatile ("mcr p15, 2, %0, c0, c0, 0" : : "r" (val)); + isb(); /* ISB to sync the change to CCSIDR */ +} + +/* read L2 control register (L2CTLR) */ +static inline uint32_t read_l2ctlr(void) +{ + uint32_t val = 0; + asm volatile ("mrc p15, 1, %0, c9, c0, 2" : "=r" (val)); + return val; +} + +/* write L2 control register (L2CTLR) */ +static inline void write_l2ctlr(uint32_t val) +{ + /* + * Note: L2CTLR can only be written when the L2 memory system + * is idle, ie before the MMU is enabled. + */ + asm volatile("mcr p15, 1, %0, c9, c0, 2" : : "r" (val) : "memory" ); + isb(); +} + +/* read L2 Auxiliary Control Register (L2ACTLR) */ +static inline uint32_t read_l2actlr(void) +{ + uint32_t val = 0; + asm volatile ("mrc p15, 1, %0, c15, c0, 0" : "=r" (val)); + return val; +} + +/* write L2 Auxiliary Control Register (L2ACTLR) */ +static inline void write_l2actlr(uint32_t val) +{ + asm volatile ("mcr p15, 1, %0, c15, c0, 0" : : "r" (val) : "memory" ); + isb(); +} + +/* read system control register (SCTLR) */ +static inline uint32_t read_sctlr(void) +{ + uint32_t val; + asm volatile ("mrc p15, 0, %0, c1, c0, 0" : "=r" (val)); + return val; +} + +/* write system control register (SCTLR) */ +static inline void write_sctlr(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c1, c0, 0" : : "r" (val) : "cc"); + isb(); +} + +/* + * Cache maintenance API + */ + +/* dcache clean and invalidate all (on current level given by CCSELR) */ +void dcache_clean_invalidate_all(void); + +/* dcache clean by modified virtual address to PoC */ +void dcache_clean_by_mva(void const *addr, size_t len); + +/* dcache clean and invalidate by modified virtual address to PoC */ +void dcache_clean_invalidate_by_mva(void const *addr, size_t len); + +/* dcache invalidate by modified virtual address to PoC */ +void dcache_invalidate_by_mva(void const *addr, size_t len); + +void dcache_clean_all(void); + +/* dcache invalidate all (on current level given by CCSELR) */ +void dcache_invalidate_all(void); + +/* dcache and MMU disable */ +void dcache_mmu_disable(void); + +/* dcache and MMU enable */ +void dcache_mmu_enable(void); + +/* icache invalidate all (on current level given by CSSELR) */ +void icache_invalidate_all(void); + +/* tlb invalidate all */ +void tlb_invalidate_all(void); + +/* + * Generalized setup/init functions + */ + +/* invalidate all caches on ARM */ +void arm_invalidate_caches(void); + +/* mmu initialization (set page table address, set permissions, etc) */ +void mmu_init(void); + +enum dcache_policy { + DCACHE_OFF, + DCACHE_WRITEBACK, + DCACHE_WRITETHROUGH, +}; + +/* disable the mmu for a range. Primarily useful to lock out address 0. */ +void mmu_disable_range(unsigned long start_mb, unsigned long size_mb); +/* mmu range configuration (set dcache policy) */ +void mmu_config_range(unsigned long start_mb, unsigned long size_mb, + enum dcache_policy policy); + +#endif /* ARM_CACHE_H */ diff --git a/payloads/libpayload/include/arm/arch/exception.h b/payloads/libpayload/include/arm/arch/exception.h new file mode 100644 index 0000000..57076bd --- /dev/null +++ b/payloads/libpayload/include/arm/arch/exception.h @@ -0,0 +1,38 @@ +/* + * This file is part of the libpayload project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _ARCH_EXCEPTION_H +#define _ARCH_EXCEPTION_H + +#include <stdint.h> + +void exception_init(void); +void set_vbar(uint32_t vbar); + +#endif diff --git a/payloads/libpayload/include/arm/arch/io.h b/payloads/libpayload/include/arm/arch/io.h new file mode 100644 index 0000000..8948e13 --- /dev/null +++ b/payloads/libpayload/include/arm/arch/io.h @@ -0,0 +1,76 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * Copyright (C) 2008 coresystems GmbH + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _ARCH_IO_H +#define _ARCH_IO_H + +#include <stdint.h> +#include <arch/cache.h> + +static inline uint8_t readb(volatile void *_a) +{ + dmb(); + return *(volatile uint8_t *)_a; +} + +static inline uint16_t readw(volatile void *_a) +{ + dmb(); + return *(volatile uint16_t *)_a; +} + +static inline uint32_t readl(volatile void *_a) +{ + dmb(); + return *(volatile uint32_t *)_a; +} + +static inline void writeb(uint8_t _v, volatile void *_a) +{ + dmb(); + *(volatile uint8_t *)_a = _v; + dmb(); +} + +static inline void writew(uint16_t _v, volatile void *_a) +{ + dmb(); + *(volatile uint16_t *)_a = _v; + dmb(); +} + +static inline void writel(uint32_t _v, volatile void *_a) +{ + dmb(); + *(volatile uint32_t *)_a = _v; + dmb(); +} + +#endif diff --git a/payloads/libpayload/include/arm/arch/types.h b/payloads/libpayload/include/arm/arch/types.h new file mode 100644 index 0000000..1bd815b --- /dev/null +++ b/payloads/libpayload/include/arm/arch/types.h @@ -0,0 +1,60 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2007 Uwe Hermann uwe@hermann-uwe.de + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _ARCH_TYPES_H +#define _ARCH_TYPES_H + +typedef unsigned char uint8_t; +typedef unsigned char u8; +typedef signed char int8_t; +typedef signed char s8; + +typedef unsigned short uint16_t; +typedef unsigned short u16; +typedef signed short int16_t; +typedef signed short s16; + +typedef unsigned int uint32_t; +typedef unsigned int u32; +typedef signed int int32_t; +typedef signed int s32; + +typedef unsigned long long uint64_t; +typedef unsigned long long u64; +typedef signed long long int64_t; +typedef signed long long s64; + +typedef long time_t; +typedef long suseconds_t; + +#ifndef NULL +#define NULL ((void *)0) +#endif + +#endif diff --git a/payloads/libpayload/include/arm/arch/virtual.h b/payloads/libpayload/include/arm/arch/virtual.h new file mode 100644 index 0000000..328c3aa --- /dev/null +++ b/payloads/libpayload/include/arm/arch/virtual.h @@ -0,0 +1,41 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 coresystems GmbH + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _ARCH_VIRTUAL_H +#define _ARCH_VIRTUAL_H + +extern unsigned long virtual_offset; + +#define virt_to_phys(virt) ((unsigned long) (virt) + virtual_offset) +#define phys_to_virt(phys) ((void *) ((unsigned long) (phys) - virtual_offset)) + +#define virt_to_bus(addr) virt_to_phys(addr) +#define bus_to_virt(addr) phys_to_virt(addr) + +#endif diff --git a/payloads/libpayload/include/armv7/arch/cache.h b/payloads/libpayload/include/armv7/arch/cache.h deleted file mode 100644 index 1cd9958..0000000 --- a/payloads/libpayload/include/armv7/arch/cache.h +++ /dev/null @@ -1,341 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2013 Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * cache.h: Cache maintenance API for ARMv7 - */ - -#ifndef ARMV7_CACHE_H -#define ARMV7_CACHE_H - -#include <stddef.h> -#include <stdint.h> - -/* SCTLR bits */ -#define SCTLR_M (1 << 0) /* MMU enable */ -#define SCTLR_A (1 << 1) /* Alignment check enable */ -#define SCTLR_C (1 << 2) /* Data/unified cache enable */ -/* Bits 4:3 are reserved */ -#define SCTLR_CP15BEN (1 << 5) /* CP15 barrier enable */ -/* Bit 6 is reserved */ -#define SCTLR_B (1 << 7) /* Endianness */ -/* Bits 9:8 */ -#define SCTLR_SW (1 << 10) /* SWP and SWPB enable */ -#define SCTLR_Z (1 << 11) /* Branch prediction enable */ -#define SCTLR_I (1 << 12) /* Instruction cache enable */ -#define SCTLR_V (1 << 13) /* Low/high exception vectors */ -#define SCTLR_RR (1 << 14) /* Round Robin select */ -/* Bits 16:15 are reserved */ -#define SCTLR_HA (1 << 17) /* Hardware Access flag enable */ -/* Bit 18 is reserved */ -/* Bits 20:19 reserved virtualization not supported */ -#define SCTLR_WXN (1 << 19) /* Write permission implies XN */ -#define SCTLR_UWXN (1 << 20) /* Unprivileged write permission - implies PL1 XN */ -#define SCTLR_FI (1 << 21) /* Fast interrupt config enable */ -#define SCTLR_U (1 << 22) /* Unaligned access behavior */ -#define SCTLR_VE (1 << 24) /* Interrupt vectors enable */ -#define SCTLR_EE (1 << 25) /* Exception endianness */ -/* Bit 26 is reserved */ -#define SCTLR_NMFI (1 << 27) /* Non-maskable FIQ support */ -#define SCTLR_TRE (1 << 28) /* TEX remap enable */ -#define SCTLR_AFE (1 << 29) /* Access flag enable */ -#define SCTLR_TE (1 << 30) /* Thumb exception enable */ -/* Bit 31 is reserved */ - -/* - * Sync primitives - */ - -/* data memory barrier */ -static inline void dmb(void) -{ - asm volatile ("dmb" : : : "memory"); -} - -/* data sync barrier */ -static inline void dsb(void) -{ - asm volatile ("dsb" : : : "memory"); -} - -/* instruction sync barrier */ -static inline void isb(void) -{ - asm volatile ("isb" : : : "memory"); -} - -/* - * Low-level TLB maintenance operations - */ - -/* invalidate entire data TLB */ -static inline void dtlbiall(void) -{ - asm volatile ("mcr p15, 0, %0, c8, c6, 0" : : "r" (0) : "memory"); -} - -/* invalidate entire instruction TLB */ -static inline void itlbiall(void) -{ - asm volatile ("mcr p15, 0, %0, c8, c5, 0" : : "r" (0)); -} - -/* invalidate entire unified TLB */ -static inline void tlbiall(void) -{ - asm volatile ("mcr p15, 0, %0, c8, c7, 0" : : "r" (0) : "memory"); -} - -/* invalidate unified TLB by MVA, all ASID */ -static inline void tlbimvaa(unsigned long mva) -{ - asm volatile ("mcr p15, 0, %0, c8, c7, 3" : : "r" (mva) : "memory"); -} - -/* write data access control register (DACR) */ -static inline void write_dacr(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c3, c0, 0" : : "r" (val)); -} - -/* write translation table base register 0 (TTBR0) */ -static inline void write_ttbr0(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c2, c0, 0" : : "r" (val) : "memory"); -} - -/* read translation table base control register (TTBCR) */ -static inline uint32_t read_ttbcr(void) -{ - uint32_t val = 0; - asm volatile ("mrc p15, 0, %0, c2, c0, 2" : "=r" (val)); - return val; -} - -/* write translation table base control register (TTBCR) */ -static inline void write_ttbcr(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c2, c0, 2" : : "r" (val) : "memory"); -} - -/* - * Low-level cache maintenance operations - */ - -/* branch predictor invalidate all */ -static inline void bpiall(void) -{ - asm volatile ("mcr p15, 0, %0, c7, c5, 6" : : "r" (0)); -} - -/* data cache clean and invalidate by MVA to PoC */ -static inline void dccimvac(unsigned long mva) -{ - asm volatile ("mcr p15, 0, %0, c7, c14, 1" : : "r" (mva) : "memory"); -} - -/* data cache invalidate by set/way */ -static inline void dccisw(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c7, c14, 2" : : "r" (val) : "memory"); -} - -/* data cache clean by MVA to PoC */ -static inline void dccmvac(unsigned long mva) -{ - asm volatile ("mcr p15, 0, %0, c7, c10, 1" : : "r" (mva) : "memory"); -} - -/* data cache clean by set/way */ -static inline void dccsw(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c7, c10, 2" : : "r" (val) : "memory"); -} - -/* data cache invalidate by MVA to PoC */ -static inline void dcimvac(unsigned long mva) -{ - asm volatile ("mcr p15, 0, %0, c7, c6, 1" : : "r" (mva) : "memory"); -} - -/* data cache invalidate by set/way */ -static inline void dcisw(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c7, c6, 2" : : "r" (val) : "memory"); -} - -/* instruction cache invalidate all by PoU */ -static inline void iciallu(void) -{ - asm volatile ("mcr p15, 0, %0, c7, c5, 0" : : "r" (0)); -} - -/* - * Cache co-processor (CP15) access functions - */ - -/* read cache level ID register (CLIDR) */ -static inline uint32_t read_clidr(void) -{ - uint32_t val = 0; - asm volatile ("mrc p15, 1, %0, c0, c0, 1" : "=r" (val)); - return val; -} - -/* read cache size ID register register (CCSIDR) */ -static inline uint32_t read_ccsidr(void) -{ - uint32_t val = 0; - asm volatile ("mrc p15, 1, %0, c0, c0, 0" : "=r" (val)); - return val; -} - -/* read cache size selection register (CSSELR) */ -static inline uint32_t read_csselr(void) -{ - uint32_t val = 0; - asm volatile ("mrc p15, 2, %0, c0, c0, 0" : "=r" (val)); - return val; -} - -/* write to cache size selection register (CSSELR) */ -static inline void write_csselr(uint32_t val) -{ - /* - * Bits [3:1] - Cache level + 1 (0b000 = L1, 0b110 = L7, 0b111 is rsvd) - * Bit 0 - 0 = data or unified cache, 1 = instruction cache - */ - asm volatile ("mcr p15, 2, %0, c0, c0, 0" : : "r" (val)); - isb(); /* ISB to sync the change to CCSIDR */ -} - -/* read L2 control register (L2CTLR) */ -static inline uint32_t read_l2ctlr(void) -{ - uint32_t val = 0; - asm volatile ("mrc p15, 1, %0, c9, c0, 2" : "=r" (val)); - return val; -} - -/* write L2 control register (L2CTLR) */ -static inline void write_l2ctlr(uint32_t val) -{ - /* - * Note: L2CTLR can only be written when the L2 memory system - * is idle, ie before the MMU is enabled. - */ - asm volatile("mcr p15, 1, %0, c9, c0, 2" : : "r" (val) : "memory" ); - isb(); -} - -/* read L2 Auxiliary Control Register (L2ACTLR) */ -static inline uint32_t read_l2actlr(void) -{ - uint32_t val = 0; - asm volatile ("mrc p15, 1, %0, c15, c0, 0" : "=r" (val)); - return val; -} - -/* write L2 Auxiliary Control Register (L2ACTLR) */ -static inline void write_l2actlr(uint32_t val) -{ - asm volatile ("mcr p15, 1, %0, c15, c0, 0" : : "r" (val) : "memory" ); - isb(); -} - -/* read system control register (SCTLR) */ -static inline uint32_t read_sctlr(void) -{ - uint32_t val; - asm volatile ("mrc p15, 0, %0, c1, c0, 0" : "=r" (val)); - return val; -} - -/* write system control register (SCTLR) */ -static inline void write_sctlr(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c1, c0, 0" : : "r" (val) : "cc"); - isb(); -} - -/* - * Cache maintenance API - */ - -/* dcache clean and invalidate all (on current level given by CCSELR) */ -void dcache_clean_invalidate_all(void); - -/* dcache clean by modified virtual address to PoC */ -void dcache_clean_by_mva(void const *addr, size_t len); - -/* dcache clean and invalidate by modified virtual address to PoC */ -void dcache_clean_invalidate_by_mva(void const *addr, size_t len); - -/* dcache invalidate by modified virtual address to PoC */ -void dcache_invalidate_by_mva(void const *addr, size_t len); - -void dcache_clean_all(void); - -/* dcache invalidate all (on current level given by CCSELR) */ -void dcache_invalidate_all(void); - -/* dcache and MMU disable */ -void dcache_mmu_disable(void); - -/* dcache and MMU enable */ -void dcache_mmu_enable(void); - -/* icache invalidate all (on current level given by CSSELR) */ -void icache_invalidate_all(void); - -/* tlb invalidate all */ -void tlb_invalidate_all(void); - -/* - * Generalized setup/init functions - */ - -/* invalidate all caches on ARMv7 */ -void armv7_invalidate_caches(void); - -/* mmu initialization (set page table address, set permissions, etc) */ -void mmu_init(void); - -enum dcache_policy { - DCACHE_OFF, - DCACHE_WRITEBACK, - DCACHE_WRITETHROUGH, -}; - -/* disable the mmu for a range. Primarily useful to lock out address 0. */ -void mmu_disable_range(unsigned long start_mb, unsigned long size_mb); -/* mmu range configuration (set dcache policy) */ -void mmu_config_range(unsigned long start_mb, unsigned long size_mb, - enum dcache_policy policy); - -#endif /* ARMV7_CACHE_H */ diff --git a/payloads/libpayload/include/armv7/arch/exception.h b/payloads/libpayload/include/armv7/arch/exception.h deleted file mode 100644 index 57076bd..0000000 --- a/payloads/libpayload/include/armv7/arch/exception.h +++ /dev/null @@ -1,38 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright 2013 Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef _ARCH_EXCEPTION_H -#define _ARCH_EXCEPTION_H - -#include <stdint.h> - -void exception_init(void); -void set_vbar(uint32_t vbar); - -#endif diff --git a/payloads/libpayload/include/armv7/arch/io.h b/payloads/libpayload/include/armv7/arch/io.h deleted file mode 100644 index 8948e13..0000000 --- a/payloads/libpayload/include/armv7/arch/io.h +++ /dev/null @@ -1,76 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2008 Advanced Micro Devices, Inc. - * Copyright (C) 2008 coresystems GmbH - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef _ARCH_IO_H -#define _ARCH_IO_H - -#include <stdint.h> -#include <arch/cache.h> - -static inline uint8_t readb(volatile void *_a) -{ - dmb(); - return *(volatile uint8_t *)_a; -} - -static inline uint16_t readw(volatile void *_a) -{ - dmb(); - return *(volatile uint16_t *)_a; -} - -static inline uint32_t readl(volatile void *_a) -{ - dmb(); - return *(volatile uint32_t *)_a; -} - -static inline void writeb(uint8_t _v, volatile void *_a) -{ - dmb(); - *(volatile uint8_t *)_a = _v; - dmb(); -} - -static inline void writew(uint16_t _v, volatile void *_a) -{ - dmb(); - *(volatile uint16_t *)_a = _v; - dmb(); -} - -static inline void writel(uint32_t _v, volatile void *_a) -{ - dmb(); - *(volatile uint32_t *)_a = _v; - dmb(); -} - -#endif diff --git a/payloads/libpayload/include/armv7/arch/types.h b/payloads/libpayload/include/armv7/arch/types.h deleted file mode 100644 index 1bd815b..0000000 --- a/payloads/libpayload/include/armv7/arch/types.h +++ /dev/null @@ -1,60 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2007 Uwe Hermann uwe@hermann-uwe.de - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef _ARCH_TYPES_H -#define _ARCH_TYPES_H - -typedef unsigned char uint8_t; -typedef unsigned char u8; -typedef signed char int8_t; -typedef signed char s8; - -typedef unsigned short uint16_t; -typedef unsigned short u16; -typedef signed short int16_t; -typedef signed short s16; - -typedef unsigned int uint32_t; -typedef unsigned int u32; -typedef signed int int32_t; -typedef signed int s32; - -typedef unsigned long long uint64_t; -typedef unsigned long long u64; -typedef signed long long int64_t; -typedef signed long long s64; - -typedef long time_t; -typedef long suseconds_t; - -#ifndef NULL -#define NULL ((void *)0) -#endif - -#endif diff --git a/payloads/libpayload/include/armv7/arch/virtual.h b/payloads/libpayload/include/armv7/arch/virtual.h deleted file mode 100644 index 328c3aa..0000000 --- a/payloads/libpayload/include/armv7/arch/virtual.h +++ /dev/null @@ -1,41 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright (C) 2008 coresystems GmbH - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef _ARCH_VIRTUAL_H -#define _ARCH_VIRTUAL_H - -extern unsigned long virtual_offset; - -#define virt_to_phys(virt) ((unsigned long) (virt) + virtual_offset) -#define phys_to_virt(phys) ((void *) ((unsigned long) (phys) - virtual_offset)) - -#define virt_to_bus(addr) virt_to_phys(addr) -#define bus_to_virt(addr) phys_to_virt(addr) - -#endif diff --git a/payloads/libpayload/include/cbfs_core.h b/payloads/libpayload/include/cbfs_core.h index d908d83..6edad0e 100644 --- a/payloads/libpayload/include/cbfs_core.h +++ b/payloads/libpayload/include/cbfs_core.h @@ -106,7 +106,7 @@ struct cbfs_header { */ #define CBFS_ARCHITECTURE_UNKNOWN 0xFFFFFFFF #define CBFS_ARCHITECTURE_X86 0x00000001 -#define CBFS_ARCHITECTURE_ARMV7 0x00000010 +#define CBFS_ARCHITECTURE_ARM 0x00000010
/** This is a component header - every entry in the CBFS will have this header. diff --git a/payloads/libpayload/sample/Makefile b/payloads/libpayload/sample/Makefile index 67697e8..2029209 100644 --- a/payloads/libpayload/sample/Makefile +++ b/payloads/libpayload/sample/Makefile @@ -31,7 +31,7 @@ include ../.xcompile include ../.config
-ARCH-$(CONFIG_ARCH_ARMV7) := armv7 +ARCH-$(CONFIG_ARCH_ARMV) := arm ARCH-$(CONFIG_ARCH_POWERPC) := powerpc ARCH-$(CONFIG_ARCH_X86) := i386
diff --git a/payloads/libpayload/util/xcompile/xcompile b/payloads/libpayload/util/xcompile/xcompile index 09c1879..755fb18 100644 --- a/payloads/libpayload/util/xcompile/xcompile +++ b/payloads/libpayload/util/xcompile/xcompile @@ -106,7 +106,7 @@ detect_special_flags() { CFLAGS="$CFLAGS -Wl,--build-id=none"
case "$architecture" in - armv7 ) + arm ) # testcc "$CC" "$CFLAGS -mcpu=cortex-a9" && # CFLAGS="$CFLAGS -mcpu=cortex-a9" ;; @@ -135,13 +135,13 @@ touch "$TMPFILE" trap clean_up EXIT
# Architecture definition -SUPPORTED_ARCHITECTURE="x86 armv7" +SUPPORTED_ARCHITECTURE="x86 arm"
# ARM Architecture -TARCH_armv7="armv7" -TBFDARCH_armv7="littlearm" -TCLIST_armv7="armv7a" -TWIDTH_armv7="32" +TARCH_arm="arm" +TBFDARCH_arm="littlearm" +TCLIST_arm="armv7a" +TWIDTH_arm="32"
# X86 Architecture TARCH_x86="i386" diff --git a/payloads/tianocoreboot/libpayload.config b/payloads/tianocoreboot/libpayload.config index c7c0720..e63fee8 100644 --- a/payloads/tianocoreboot/libpayload.config +++ b/payloads/tianocoreboot/libpayload.config @@ -15,7 +15,7 @@ # # Architecture Options # -# CONFIG_ARCH_ARMV7 is not set +# CONFIG_ARCH_ARM is not set # CONFIG_ARCH_POWERPC is not set CONFIG_ARCH_X86=y # CONFIG_MEMMAP_RAM_ONLY is not set diff --git a/src/Kconfig b/src/Kconfig index 6b674ed..544e824 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -210,12 +210,12 @@ config ARCH_X86 default n select PCI
-config ARCH_ARMV7 +config ARCH_ARM bool default n
source src/arch/x86/Kconfig -source src/arch/armv7/Kconfig +source src/arch/arm/Kconfig
source src/vendorcode/Kconfig
@@ -273,7 +273,7 @@ config TPM bool default n select LPC_TPM if ARCH_X86 - select I2C_TPM if ARCH_ARMV7 + select I2C_TPM if ARCH_ARM help Enable this option to enable TPM support in coreboot.
diff --git a/src/arch/arm/Kconfig b/src/arch/arm/Kconfig new file mode 100644 index 0000000..050cd62 --- /dev/null +++ b/src/arch/arm/Kconfig @@ -0,0 +1,28 @@ +config ARCH_BOOTBLOCK_ARM + bool + default n + select ARCH_ARM + +config ARCH_ROMSTAGE_ARM + bool + default n + +config ARCH_RAMSTAGE_ARM + bool + default n + +source src/arch/arm/armv7/Kconfig + +# If a custom bootblock is necessary, this option should be "select"-ed by +# the thing that needs it, probably the CPU. +config ARM_BOOTBLOCK_CUSTOM + bool + default n + +config CPU_HAS_BOOTBLOCK_INIT + bool + default n + +config MAINBOARD_HAS_BOOTBLOCK_INIT + bool + default n \ No newline at end of file diff --git a/src/arch/arm/Makefile.inc b/src/arch/arm/Makefile.inc new file mode 100644 index 0000000..8838edf --- /dev/null +++ b/src/arch/arm/Makefile.inc @@ -0,0 +1,130 @@ +################################################################################ +## +## This file is part of the coreboot project. +## +## Copyright (C) 2012 The ChromiumOS Authors +## Copyright (C) 2012 Alexandru Gagniuc mr.nuke.me@gmail.com +## Copyright (C) 2009-2010 coresystems GmbH +## Copyright (C) 2009 Ronald G. Minnich +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; version 2 of the License. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software +## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## +############################################################################### +# Take care of subdirectories +############################################################################### +subdirs-y += armv7/ + +############################################################################### +# ARM specific options +############################################################################### + +ifeq ($(CONFIG_ARCH_ROMSTAGE_ARM),y) +CBFSTOOL_PRE1_OPTS = -m arm -b $(CONFIG_BOOTBLOCK_ROM_OFFSET) -H $(CONFIG_CBFS_HEADER_ROM_OFFSET) -o $(CONFIG_CBFS_ROM_OFFSET) +CBFSTOOL_PRE_OPTS = -b 0 +endif + +ifeq ($(CONFIG_ARCH_ARM),y) +stages_c = $(src)/arch/arm/stages.c +stages_o = $(obj)/arch/arm/stages.o + +$(stages_o): $(stages_c) $(obj)/config.h + @printf " CC $(subst $(obj)/,,$(@))\n" + $(CC_arm) -I. $(CPPFLAGS_arm) -c -o $@ $< -marm + +endif # CONFIG_ARCH_ARM + +############################################################################### +# bootblock +############################################################################### + +ifeq ($(CONFIG_ARCH_BOOTBLOCK_ARM),y) + +bootblock-y += id.S +$(obj)/arch/arm/id.bootblock.o: $(obj)/build.h + +bootblock-y += stages.c +bootblock-y += eabi_compat.c +bootblock-y += memset.S +bootblock-y += memcpy.S +bootblock-y += memmove.S + +$(objcbfs)/bootblock.debug: $(src)/arch/arm/bootblock.ld $(obj)/ldoptions $$(bootblock-objs) $(obj)/config.h + @printf " LINK $(subst $(obj)/,,$(@))\n" +ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y) + $(LD_bootblock) -m armelf_linux_eabi -static -o $@ -L$(obj) $< -T $(src)/arch/arm/bootblock.ld +else + $(CC_bootblock) $(CFLAGS_bootblock) -nostartfiles -include $(obj)/config.h -static -o $@ -L$(obj) -T $(src)/arch/arm/bootblock.ld -Wl,--start-group $(bootblock-objs) $(LIBGCC_FILE_NAME_bootblock) -Wl,--end-group +endif + +endif # CONFIG_ARCH_BOOTBLOCK_ARM + +############################################################################### +# romstage +############################################################################### + +ifeq ($(CONFIG_ARCH_ROMSTAGE_ARM),y) + +romstage-y += stages.c +romstage-y += div0.c +romstage-y += eabi_compat.c +romstage-y += memset.S +romstage-y += memcpy.S +romstage-y += memmove.S + +VBOOT_STUB_DEPS += $(obj)/arch/arm/eabi_compat.rmodules_arm.o + +$(objcbfs)/romstage.debug: $$(romstage-objs) $(src)/arch/arm/romstage.ld $(obj)/ldoptions + @printf " LINK $(subst $(obj)/,,$(@))\n" +ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y) + $(LD_romstage) -nostdlib -nostartfiles -static -o $@ -L$(obj) $(romstage-objs) -T $(src)/arch/arm/romstage.ld +else + $(CC_romstage) $(CFLAGS_romstage) -nostartfiles -static -o $@ -L$(obj) -T $(src)/arch/arm/romstage.ld -Wl,--start-group $(romstage-objs) $(LIBGCC_FILE_NAME_romstage) -Wl,--end-group +endif + +endif # CONFIG_ARCH_ROMSTAGE_ARM + +############################################################################### +# ramstage +############################################################################### + +ifeq ($(CONFIG_ARCH_RAMSTAGE_ARM),y) + +ramstage-y += stages.c +ramstage-y += div0.c +ramstage-y += cpu.c +ramstage-y += eabi_compat.c +ramstage-y += boot.c +ramstage-y += tables.c +ramstage-y += memset.S +ramstage-y += memcpy.S +ramstage-y += memmove.S +ramstage-srcs += $(wildcard src/mainboard/$(MAINBOARDDIR)/mainboard.c) + +$(objcbfs)/ramstage.debug: $$(ramstage-objs) $(LIBGCC_FILE_NAME_ramstage) $(src)/arch/arm/ramstage.ld $(obj)/ldoptions + @printf " CC $(subst $(obj)/,,$(@))\n" +ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y) + $(LD_ramstage) -m armelf_linux_eabi -o $@ -L$(obj) $< -T $(src)/arch/arm/ramstage.ld +else + $(CC_ramstage) $(CFLAGS_ramstage) -nostdlib -nostartfiles -static -o $@ -L$(obj) -Wl,--start-group $(ramstage-objs) $(LIBGCC_FILE_NAME_ramstage) -Wl,--end-group -T $(src)/arch/arm/ramstage.ld +endif + +$(objgenerated)/ramstage.o: $(stages_o) $$(ramstage-objs) $(LIBGCC_FILE_NAME_ramstage) + @printf " CC $(subst $(obj)/,,$(@))\n" +ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y) + $(LD_ramstage) -m -m armelf_linux_eabi -r -o $@ --wrap __divdi3 --wrap __udivdi3 --wrap __moddi3 --wrap __umoddi3 --wrap __uidiv --start-group $(ramstage-objs) $(LIBGCC_FILE_NAME_ramstage) --end-group +else + $(CC_ramstage) $(CFLAGS_ramstage) $(CPPFLAGS_ramstage) -nostdlib -r -o $@ -Wl,--start-group $(stages_o) $(ramstage-objs) $(LIBGCC_FILE_NAME_ramstage) -Wl,--end-group +endif + +endif # CONFIG_ARCH_RAMSTAGE_ARM diff --git a/src/arch/arm/armv7/Kconfig b/src/arch/arm/armv7/Kconfig new file mode 100644 index 0000000..f8e0205 --- /dev/null +++ b/src/arch/arm/armv7/Kconfig @@ -0,0 +1,11 @@ +config ARCH_BOOTBLOCK_ARMV7 + def_bool n + select ARCH_BOOTBLOCK_ARM + +config ARCH_ROMSTAGE_ARMV7 + def_bool n + select ARCH_ROMSTAGE_ARM + +config ARCH_RAMSTAGE_ARMV7 + def_bool n + select ARCH_RAMSTAGE_ARM diff --git a/src/arch/arm/armv7/Makefile.inc b/src/arch/arm/armv7/Makefile.inc new file mode 100644 index 0000000..bcd7d9e --- /dev/null +++ b/src/arch/arm/armv7/Makefile.inc @@ -0,0 +1,71 @@ +################################################################################ +## +## This file is part of the coreboot project. +## +## Copyright (C) 2013 The ChromiumOS Authors +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation; version 2 of the License. +## +## This program is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +## GNU General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with this program; if not, write to the Free Software +## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## +############################################################################### + +armv7_flags = -march=armv7-a -mthumb -mthumb-interwork \ + -I$(src)/arch/arm/include/armv7/ + +############################################################################### +# bootblock +############################################################################### + +ifeq ($(CONFIG_ARCH_BOOTBLOCK_ARMV7),y) + +ifneq ($(CONFIG_ARM_BOOTBLOCK_CUSTOM),y) +bootblock-y += bootblock.S +bootblock-$(CONFIG_BOOTBLOCK_SIMPLE) += bootblock_simple.c +endif + +bootblock-y += cache.c +bootblock-y += mmu.c + +CFLAGS_bootblock += $(armv7_flags) +CPPFLAGS_bootblock += $(armv7_flags) + +endif # CONFIG_ARCH_BOOTBLOCK_ARMV7 + +############################################################################### +# romstage +############################################################################### + +ifeq ($(CONFIG_ARCH_ROMSTAGE_ARMV7),y) + +romstage-y += cache.c + +CFLAGS_romstage += $(armv7_flags) +CPPFLAGS_romstage += $(armv7_flags) + +endif # CONFIG_ARCH_ROMSTAGE_ARMV7 + +############################################################################### +# ramstage +############################################################################### + +ifeq ($(CONFIG_ARCH_RAMSTAGE_ARMV7),y) + +ramstage-y += cache.c +ramstage-y += exception.c +ramstage-y += exception_asm.S +ramstage-y += mmu.c + +CFLAGS_ramstage += $(armv7_flags) +CPPFLAGS_ramstage += $(armv7_flags) + +endif # CONFIG_ARCH_RAMSTAGE_ARMV7 diff --git a/src/arch/arm/armv7/bootblock.S b/src/arch/arm/armv7/bootblock.S new file mode 100644 index 0000000..b28a787 --- /dev/null +++ b/src/arch/arm/armv7/bootblock.S @@ -0,0 +1,113 @@ +/* + * Early initialization code for ARMv7 architecture. + * + * This file is based off of the OMAP3530/ARM Cortex start.S file from Das + * U-Boot, which itself got the file from armboot. + * + * Copyright (c) 2004 Texas Instruments r-woodruff2@ti.com + * Copyright (c) 2001 Marius Gröger mag@sysgo.de + * Copyright (c) 2002 Alex Züpke azu@sysgo.de + * Copyright (c) 2002 Gary Jennejohn garyj@denx.de + * Copyright (c) 2003 Richard Woodruff r-woodruff2@ti.com + * Copyright (c) 2003 Kshitij kshitij@ti.com + * Copyright (c) 2006-2008 Syed Mohammed Khasim x0khasim@ti.com + * Copyright (c) 2013 The Chromium OS Authors + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; version 2 of + * the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +.section ".start", "a", %progbits +.globl _start +_start: b reset + .balignl 16,0xdeadbeef + +_cbfs_master_header: + /* The CBFS master header is inserted by cbfstool at the first + * aligned offset after the above anchor string is found. + * Hence, we leave some space for it. + */ + .skip 128 @ Assumes 64-byte alignment + +reset: + /* + * Set the cpu to System mode with IRQ and FIQ disabled. Prefetch/Data + * aborts may happen early and crash before the abort handlers are + * installed, but at least the problem will show up near the code that + * causes it. + */ + msr cpsr_cxf, #0xdf + + /* + * From Cortex-A Series Programmer's Guide: + * Only CPU 0 performs initialization. Other CPUs go into WFI + * to do this, first work out which CPU this is + * this code typically is run before any other initialization step + */ + mrc p15, 0, r1, c0, c0, 5 @ Read Multiprocessor Affinity Register + and r1, r1, #0x3 @ Extract CPU ID bits + cmp r1, #0 + bne wait_for_interrupt @ If this is not core0, wait + + /* + * Initialize the stack to a known value. This is used to check for + * stack overflow later in the boot process. + */ + ldr r0, .Stack + ldr r1, .Stack_size + sub r0, r0, r1 + ldr r1, .Stack + ldr r2, =0xdeadbeef +init_stack_loop: + str r2, [r0] + add r0, #4 + cmp r0, r1 + bne init_stack_loop + +/* Set stackpointer in internal RAM to call board_init_f */ +call_bootblock: + ldr sp, .Stack /* Set up stack pointer */ + ldr r0,=0x00000000 + /* + * The current design of cpu_info places the + * struct at the top of the stack. The number of + * words pushed must be at least as large as that + * struct. + */ + push {r0-r2} + bic sp, sp, #7 /* 8-byte alignment for ABI compliance */ + /* + * Use "bl" instead of "b" even though we do not intend to return. + * "bl" gets compiled to "blx" if we're transitioning from ARM to + * Thumb. However, "b" will not and GCC may attempt to create a + * wrapper which is currently broken. + */ + bl main + +wait_for_interrupt: + wfi + mov pc, lr @ back to my caller + +/* we do it this way because it's a 32-bit constant and + * in some cases too far away to be loaded as just an offset + * from IP + */ +.align 2 +.Stack: + .word CONFIG_STACK_TOP +.align 2 +/* create this size the same way we do in coreboot_ram.ld: top-bottom */ +.Stack_size: + .word CONFIG_STACK_TOP - CONFIG_STACK_BOTTOM diff --git a/src/arch/arm/armv7/bootblock_simple.c b/src/arch/arm/armv7/bootblock_simple.c new file mode 100644 index 0000000..f447034 --- /dev/null +++ b/src/arch/arm/armv7/bootblock_simple.c @@ -0,0 +1,63 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2010 Google Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; version 2 of + * the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <arch/cache.h> +#include <arch/hlt.h> +#include <arch/stages.h> +#include <bootblock_common.h> +#include <cbfs.h> +#include <console/console.h> +#include <smp/node.h> + +void main(void) +{ + const char *stage_name = "fallback/romstage"; + void *entry; + uint32_t sctlr; + + /* Globally disable MMU, caches, and branch prediction (these should + * be disabled by default on reset) */ + sctlr = read_sctlr(); + sctlr &= ~(SCTLR_M | SCTLR_C | SCTLR_Z | SCTLR_I); + write_sctlr(sctlr); + + arm_invalidate_caches(); + + /* + * Re-enable icache and branch prediction. MMU and dcache will be + * set up later. + */ + sctlr = read_sctlr(); + sctlr |= SCTLR_Z | SCTLR_I; + write_sctlr(sctlr); + + bootblock_cpu_init(); + bootblock_mainboard_init(); + +#if CONFIG_BOOTBLOCK_CONSOLE + console_init(); +#endif + + entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, stage_name); + + if (entry) stage_exit(entry); + hlt(); +} diff --git a/src/arch/arm/armv7/cache.c b/src/arch/arm/armv7/cache.c new file mode 100644 index 0000000..acd1f9a --- /dev/null +++ b/src/arch/arm/armv7/cache.c @@ -0,0 +1,328 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * cache.c: Cache maintenance routines for ARMv7-A and ARMv7-R + * + * Reference: ARM Architecture Reference Manual, ARMv7-A and ARMv7-R edition + */ + +#include <stdint.h> + +#include <arch/cache.h> + +#define bitmask(high, low) ((1UL << (high)) + \ + ((1UL << (high)) - 1) - ((1UL << (low)) - 1)) + +/* Basic log2() implementation. Note: log2(0) is 0 for our purposes. */ +/* FIXME: src/include/lib.h is difficult to work with due to romcc */ +static unsigned long log2(unsigned long u) +{ + int i = 0; + + while (u >>= 1) + i++; + + return i; +} + +void tlb_invalidate_all(void) +{ + /* + * FIXME: ARMv7 Architecture Ref. Manual claims that the distinction + * instruction vs. data TLBs is deprecated in ARMv7, however this does + * not seem to be the case as of Cortex-A15. + */ + tlbiall(); + dtlbiall(); + itlbiall(); + isb(); + dsb(); +} + +void icache_invalidate_all(void) +{ + /* + * icache can be entirely invalidated with one operation. + * Note: If branch predictors are architecturally-visible, ICIALLU + * also performs a BPIALL operation (B2-1283 in arch manual) + */ + iciallu(); + isb(); +} + +enum dcache_op { + OP_DCCSW, + OP_DCCISW, + OP_DCISW, + OP_DCCIMVAC, + OP_DCCMVAC, + OP_DCIMVAC, +}; + +/* + * Do a dcache operation on entire cache by set/way. This is done for + * portability because mapping of memory address to cache location is + * implementation defined (See note on "Requirements for operations by + * set/way" in arch ref. manual). + */ +static void dcache_op_set_way(enum dcache_op op) +{ + uint32_t ccsidr; + unsigned int associativity, num_sets, linesize_bytes; + unsigned int set, way; + unsigned int level; + + level = (read_csselr() >> 1) & 0x7; + + /* + * dcache must be invalidated by set/way for portability since virtual + * memory mapping is system-defined. The number of sets and + * associativity is given by CCSIDR. We'll use DCISW to invalidate the + * dcache. + */ + ccsidr = read_ccsidr(); + + /* FIXME: rounding up required here? */ + num_sets = ((ccsidr & bitmask(27, 13)) >> 13) + 1; + associativity = ((ccsidr & bitmask(12, 3)) >> 3) + 1; + /* FIXME: do we need to use CTR.DminLine here? */ + linesize_bytes = (1 << ((ccsidr & 0x7) + 2)) * 4; + + dsb(); + + /* + * Set/way operations require an interesting bit packing. See section + * B4-35 in the ARMv7 Architecture Reference Manual: + * + * A: Log2(associativity) + * B: L+S + * L: Log2(linesize) + * S: Log2(num_sets) + * + * The bits are packed as follows: + * 31 31-A B B-1 L L-1 4 3 1 0 + * |---|-------------|--------|-------|-----|-| + * |Way| zeros | Set | zeros |level|0| + * |---|-------------|--------|-------|-----|-| + */ + for (way = 0; way < associativity; way++) { + for (set = 0; set < num_sets; set++) { + uint32_t val = 0; + val |= way << (32 - log2(associativity)); + val |= set << log2(linesize_bytes); + val |= level << 1; + switch(op) { + case OP_DCCISW: + dccisw(val); + break; + case OP_DCISW: + dcisw(val); + break; + case OP_DCCSW: + dccsw(val); + break; + default: + break; + } + } + } + isb(); +} + +static void dcache_foreach(enum dcache_op op) +{ + uint32_t clidr; + int level; + + clidr = read_clidr(); + for (level = 0; level < 7; level++) { + unsigned int ctype = (clidr >> (level * 3)) & 0x7; + uint32_t csselr; + + switch(ctype) { + case 0x2: + case 0x3: + case 0x4: + csselr = level << 1; + write_csselr(csselr); + dcache_op_set_way(op); + break; + default: + /* no cache, icache only, or reserved */ + break; + } + } +} + +void dcache_clean_all(void) +{ + dcache_foreach(OP_DCCSW); +} + +void dcache_clean_invalidate_all(void) +{ + dcache_foreach(OP_DCCISW); +} + +void dcache_invalidate_all(void) +{ + dcache_foreach(OP_DCISW); +} + +static unsigned int line_bytes(void) +{ + uint32_t ccsidr; + unsigned int size; + + ccsidr = read_ccsidr(); + /* [2:0] - Indicates (Log2(number of words in cache line)) - 2 */ + size = 1 << ((ccsidr & 0x7) + 2); /* words per line */ + size *= sizeof(unsigned int); /* bytes per line */ + + return size; +} + +/* + * Do a dcache operation by modified virtual address. This is useful for + * maintaining coherency in drivers which do DMA transfers and only need to + * perform cache maintenance on a particular memory range rather than the + * entire cache. + */ +static void dcache_op_mva(void const *addr, size_t len, enum dcache_op op) +{ + unsigned long line, linesize; + + linesize = line_bytes(); + line = (uint32_t)addr & ~(linesize - 1); + + dsb(); + while ((void *)line < addr + len) { + switch(op) { + case OP_DCCIMVAC: + dccimvac(line); + break; + case OP_DCCMVAC: + dccmvac(line); + break; + case OP_DCIMVAC: + dcimvac(line); + break; + default: + break; + } + line += linesize; + } + isb(); +} + +void dcache_clean_by_mva(void const *addr, size_t len) +{ + dcache_op_mva(addr, len, OP_DCCMVAC); +} + +void dcache_clean_invalidate_by_mva(void const *addr, size_t len) +{ + dcache_op_mva(addr, len, OP_DCCIMVAC); +} + +void dcache_invalidate_by_mva(void const *addr, size_t len) +{ + dcache_op_mva(addr, len, OP_DCIMVAC); +} + +void dcache_mmu_disable(void) +{ + uint32_t sctlr; + + dcache_clean_invalidate_all(); + sctlr = read_sctlr(); + sctlr &= ~(SCTLR_C | SCTLR_M); + write_sctlr(sctlr); +} + + +void dcache_mmu_enable(void) +{ + uint32_t sctlr; + + sctlr = read_sctlr(); + dcache_clean_invalidate_all(); + sctlr |= SCTLR_C | SCTLR_M; + write_sctlr(sctlr); +} + +void arm_invalidate_caches(void) +{ + uint32_t clidr; + int level; + + /* Invalidate branch predictor */ + bpiall(); + + /* Iterate thru each cache identified in CLIDR and invalidate */ + clidr = read_clidr(); + for (level = 0; level < 7; level++) { + unsigned int ctype = (clidr >> (level * 3)) & 0x7; + uint32_t csselr; + + switch(ctype) { + case 0x0: + /* no cache */ + break; + case 0x1: + /* icache only */ + csselr = (level << 1) | 1; + write_csselr(csselr); + icache_invalidate_all(); + break; + case 0x2: + case 0x4: + /* dcache only or unified cache */ + csselr = level << 1; + write_csselr(csselr); + dcache_invalidate_all(); + break; + case 0x3: + /* separate icache and dcache */ + csselr = (level << 1) | 1; + write_csselr(csselr); + icache_invalidate_all(); + + csselr = level << 1; + write_csselr(csselr); + dcache_invalidate_all(); + break; + default: + /* reserved */ + break; + } + } + + /* Invalidate TLB */ + tlb_invalidate_all(); +} diff --git a/src/arch/arm/armv7/exception.c b/src/arch/arm/armv7/exception.c new file mode 100644 index 0000000..3b32e8b --- /dev/null +++ b/src/arch/arm/armv7/exception.c @@ -0,0 +1,180 @@ +/* + * This file is part of the libpayload project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <stdint.h> +#include <types.h> +#include <arch/exception.h> +#include <console/console.h> + +void exception_test(void); + +static int test_abort; + +void exception_undefined_instruction(uint32_t *); +void exception_software_interrupt(uint32_t *); +void exception_prefetch_abort(uint32_t *); +void exception_data_abort(uint32_t *); +void exception_not_used(uint32_t *); +void exception_irq(uint32_t *); +void exception_fiq(uint32_t *); + +static void dump_stack(uintptr_t addr, size_t bytes) +{ + int i, j; + const int line = 8; + uint32_t *ptr = (uint32_t *)(addr & ~(line * sizeof(*ptr) - 1)); + + printk(BIOS_ERR, "Dumping stack:\n"); + for (i = bytes / sizeof(*ptr); i >= 0; i -= line) { + printk(BIOS_ERR, "%p: ", ptr + i); + for (j = i; j < i + line; j++) + printk(BIOS_ERR, "%08x ", *(ptr + j)); + printk(BIOS_ERR, "\n"); + } +} + +static void print_regs(uint32_t *regs) +{ + int i; + + for (i = 0; i < 16; i++) { + if (i == 15) + printk(BIOS_ERR, "PC"); + else if (i == 14) + printk(BIOS_ERR, "LR"); + else if (i == 13) + printk(BIOS_ERR, "SP"); + else if (i == 12) + printk(BIOS_ERR, "IP"); + else + printk(BIOS_ERR, "R%d", i); + printk(BIOS_ERR, " = 0x%08x\n", regs[i]); + } +} + +void exception_undefined_instruction(uint32_t *regs) +{ + printk(BIOS_ERR, "exception _undefined_instruction\n"); + print_regs(regs); + dump_stack(regs[13], 512); + die("exception"); +} + +void exception_software_interrupt(uint32_t *regs) +{ + printk(BIOS_ERR, "exception _software_interrupt\n"); + print_regs(regs); + dump_stack(regs[13], 512); + die("exception"); +} + +void exception_prefetch_abort(uint32_t *regs) +{ + printk(BIOS_ERR, "exception _prefetch_abort\n"); + print_regs(regs); + dump_stack(regs[13], 512); + die("exception"); +} + +void exception_data_abort(uint32_t *regs) +{ + if (test_abort) { + regs[15] = regs[0]; + return; + } else { + printk(BIOS_ERR, "exception _data_abort\n"); + print_regs(regs); + dump_stack(regs[13], 512); + } + die("exception"); +} + +void exception_not_used(uint32_t *regs) +{ + printk(BIOS_ERR, "exception _not_used\n"); + print_regs(regs); + dump_stack(regs[13], 512); + die("exception"); +} + +void exception_irq(uint32_t *regs) +{ + printk(BIOS_ERR, "exception _irq\n"); + print_regs(regs); + dump_stack(regs[13], 512); + die("exception"); +} + +void exception_fiq(uint32_t *regs) +{ + printk(BIOS_ERR, "exception _fiq\n"); + print_regs(regs); + dump_stack(regs[13], 512); + die("exception"); +} + +static inline uint32_t get_sctlr(void) +{ + uint32_t val; + asm("mrc p15, 0, %0, c1, c0, 0" : "=r" (val)); + return val; +} + +static inline void set_sctlr(uint32_t val) +{ + asm volatile("mcr p15, 0, %0, c1, c0, 0" :: "r" (val)); + asm volatile("" ::: "memory"); +} + +void exception_init(void) +{ + static const uint32_t sctlr_te = (0x1 << 30); + static const uint32_t sctlr_v = (0x1 << 13); + static const uint32_t sctlr_a = (0x1 << 1); + + uint32_t sctlr = get_sctlr(); + /* Handle exceptions in ARM mode. */ + sctlr &= ~sctlr_te; + /* Set V=0 in SCTLR so VBAR points to the exception vector table. */ + sctlr &= ~sctlr_v; + /* Enforce alignment temporarily. */ + set_sctlr(sctlr | sctlr_a); + + extern uint32_t exception_table[]; + set_vbar((uintptr_t)exception_table); + + test_abort = 1; + printk(BIOS_ERR, "Testing exceptions\n"); + exception_test(); + test_abort = 0; + printk(BIOS_ERR, "Testing exceptions: DONE\n"); + + /* Restore original alignment settings. */ + set_sctlr(sctlr); +} diff --git a/src/arch/arm/armv7/exception_asm.S b/src/arch/arm/armv7/exception_asm.S new file mode 100644 index 0000000..163fdbd --- /dev/null +++ b/src/arch/arm/armv7/exception_asm.S @@ -0,0 +1,116 @@ +/* + * This file is part of the libpayload project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +exception_stack: + .align 5 + .skip 0x2000, 0xa5 +exception_stack_end: + .word exception_stack_end + +exception_handler: + .word 0 + + + .align 6 + .arm + .global exception_table +exception_table: + b 1f + b 2f + b 3f + b 4f + b 5f + b 6f + b 7f + b 8f + +1: + ldr sp, _not_used + b exception_common +2: + ldr sp, _undefined_instruction + b exception_common +3: + ldr sp, _software_interrupt + b exception_common +4: + ldr sp, _prefetch_abort + b exception_common +5: + ldr sp, _data_abort + b exception_common +6: + ldr sp, _not_used + b exception_common +7: + ldr sp, _irq + b exception_common +8: + ldr sp, _fiq + b exception_common + +exception_common: + str sp, exception_handler + ldr sp, exception_stack_end + push { lr } + stmfd sp, { sp, lr }^ + sub sp, sp, $8 + push { r0 - r12 } + mov r0, sp + mov lr, pc + ldr pc, exception_handler + pop { r0 - r12 } + add sp, sp, $8 + ldmfd sp!, { pc }^ + + +_undefined_instruction: .word exception_undefined_instruction +_software_interrupt: .word exception_software_interrupt +_prefetch_abort: .word exception_prefetch_abort +_data_abort: .word exception_data_abort +_not_used: .word exception_not_used +_irq: .word exception_irq +_fiq: .word exception_fiq + + .thumb + .global set_vbar + .thumb_func +set_vbar: + mcr p15, 0, r0, c12, c0, 0 + bx lr + + .global exception_test + .thumb_func +exception_test: + mov r1, $1 + mov r0, pc + add r0, $3 + ldr r1, [r1] + bx lr + diff --git a/src/arch/arm/armv7/mmu.c b/src/arch/arm/armv7/mmu.c new file mode 100644 index 0000000..cc915a6 --- /dev/null +++ b/src/arch/arm/armv7/mmu.c @@ -0,0 +1,144 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <config.h> +#include <stdlib.h> +#include <stdint.h> + +#include <cbmem.h> +#include <console/console.h> + +#include <arch/cache.h> +#include <arch/io.h> + +static void *const ttb_buff = (void *)CONFIG_TTB_BUFFER; + +void mmu_disable_range(unsigned long start_mb, unsigned long size_mb) +{ + unsigned int i; + uint32_t *ttb_entry = ttb_buff; + printk(BIOS_DEBUG, "Disabling: 0x%08lx:0x%08lx\n", + start_mb*MiB, start_mb*MiB + size_mb*MiB - 1); + + for (i = start_mb; i < start_mb + size_mb; i++) + writel(0, &ttb_entry[i]); + + for (i = start_mb; i < start_mb + size_mb; i++) { + dccmvac((uintptr_t)&ttb_entry[i]); + tlbimvaa(i*MiB); + } +} + +void mmu_config_range(unsigned long start_mb, unsigned long size_mb, + enum dcache_policy policy) +{ + unsigned int i; + uint32_t attr; + uint32_t *ttb_entry = ttb_buff; + const char *str = NULL; + + /* + * Section entry bits: + * 31:20 - section base address + * 18 - 0 to indicate normal section (versus supersection) + * 17 - nG, 0 to indicate page is global + * 16 - S, 0 for non-shareable (?) + * 15 - APX, 0 for full access + * 14:12 - TEX, 0b000 for outer and inner write-back + * 11:10 - AP, 0b11 for full access + * 9 - P, ? (FIXME: not described or possibly obsolete?) + * 8: 5 - Domain + * 4 - XN, 1 to set execute-never (and also avoid prefetches) + * 3 - C, 1 for cacheable + * 2 - B, 1 for bufferable + * 1: 0 - 0b10 to indicate section entry + */ + + switch(policy) { + case DCACHE_OFF: + /* XN set to avoid prefetches to uncached/unbuffered regions */ + attr = (0x3 << 10) | (1 << 4) | 0x2; + str = "off"; + break; + case DCACHE_WRITEBACK: + attr = (0x3 << 10) | (1 << 3) | (1 << 2) | 0x2; + str = "writeback"; + break; + case DCACHE_WRITETHROUGH: + attr = (0x3 << 10) | (1 << 3) | 0x2; + str = "writethrough"; + break; + default: + printk(BIOS_ERR, "unknown dcache policy: %02x\n", policy); + return; + } + + printk(BIOS_DEBUG, "Setting dcache policy: 0x%08lx:0x%08lx [%s]\n", + start_mb << 20, ((start_mb + size_mb) << 20) - 1, str); + + /* Write out page table entries. */ + for (i = start_mb; i < start_mb + size_mb; i++) + writel((i << 20) | attr, &ttb_entry[i]); + + /* Flush the page table entries, and old translations from the TLB. */ + for (i = start_mb; i < start_mb + size_mb; i++) { + dccmvac((uintptr_t)&ttb_entry[i]); + tlbimvaa(i*MiB); + } +} + +void mmu_init(void) +{ + /* + * For coreboot's purposes, we will create a simple L1 page table + * in RAM with 1MB section translation entries over the 4GB address + * space. + * (ref: section 10.2 and example 15-4 in Cortex-A series + * programmer's guide) + */ + printk(BIOS_DEBUG, "Translation table is @ %p\n", ttb_buff); + + /* + * Disable TTBR1 by setting TTBCR.N to 0b000, which means the TTBR0 + * table size is 16KB and has indices VA[31:20]. + * + * ref: Arch Ref. Manual for ARMv7-A, B3.5.4, + */ + write_ttbcr(read_ttbcr() & ~0x3); + + /* + * Translation table base 0 address is in bits 31:14-N, where N is given + * by bits 2:0 in TTBCR (which we set to 0). All lower bits in this + * register should be zero for coreboot. + */ + write_ttbr0((uintptr_t)ttb_buff); + + /* disable domain-level checking of permissions */ + write_dacr(~0); +} diff --git a/src/arch/arm/armv7/thread.c b/src/arch/arm/armv7/thread.c new file mode 100644 index 0000000..d0c23ff --- /dev/null +++ b/src/arch/arm/armv7/thread.c @@ -0,0 +1,127 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 Google, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <console/console.h> +#include <thread.h> + +/* The stack frame looks like the following. */ +struct pushed_regs { + u32 r4; + u32 r5; + u32 r6; + u32 r7; + u32 r8; + u32 r9; + u32 r10; + u32 r11; + u32 lr; +}; + +static inline uintptr_t push_stack(uintptr_t cur_stack, uintptr_t value) +{ + uintptr_t *addr; + + cur_stack -= sizeof(value); + addr = (uintptr_t *)cur_stack; + *addr = value; + return cur_stack; +} + +void arch_prepare_thread(struct thread *t, + void asmlinkage (*thread_entry)(void *), void *arg) +{ + uintptr_t stack = t->stack_current; + int i; + uintptr_t poison = 0xdeadbeef; + + /* Push the LR. thread_entry() + * is assumed to never return. + */ + stack = push_stack(stack, (uintptr_t)thread_entry); + /* Make room for the registers. + * Poison the initial stack. This is good hygiene and finds bugs. + * Poisoning the stack with different values helps when you're + * hunting for (e.g.) misaligned stacks or other such + * weirdness. The -1 is because we already pushed lr. + */ + for(i = 0; i < sizeof(struct pushed_regs)/sizeof(u32)-1; i++) + stack = push_stack(stack, poison++); + + t->stack_current = stack; +} + +/* We could write this as a .S and the first time around that's how we + * did it. But there's always the question of matching our ARM + * directives in the .S with how gcc is doing things. It seems best + * to follow the pattern of the rest of the ARM port and just use + * inline assembly and let gcc get all the ELF magic right. + */ +void __attribute__((naked)) +switch_to_thread(uintptr_t new_stack, uintptr_t *saved_stack) +{ + /* Defintions for those of us not totally familiar with ARM: + * R15 -- PC, R14 -- LR, R13 -- SP + * R0-R3 need not be saved, nor R12. + * on entry, the only saved state is in LR -- the old PC. + * The args are in R0,R1. + * R0 is the new stack + * R1 is a pointer to the old stack save location + * Push R4-R11 and LR + * then switch stacks + * then pop R0-R12 and LR + * then mov PC,LR + * + * stack layout + * +------------+ + * | LR | <-- sp + 0x20 + * +------------+ + * | R11 | <-- sp + 0x1c + * +------------+ + * | R10 | <-- sp + 0x18 + * +------------+ + * | R9 | <-- sp + 0x14 + * +------------+ + * | R8 | <-- sp + 0x10 + * +------------+ + * | R7 | <-- sp + 0x0c + * +------------+ + * | R6 | <-- sp + 0x08 + * +------------+ + * | R5 | <-- sp + 0x04 + * +------------+ + * | R4 | <-- sp + 0x00 + * +------------+ + */ + asm volatile ( + /* save context. */ + "push {r4-r11,lr}\n\t" + /* Save the current stack */ + "str sp,[r1]\n\t" + /* switch to the new stack */ + "mov sp,r0\n\t" + /* restore the registers */ + "pop {r4-r11,lr}\n\t" + /* resume other thread. */ + "mov pc,lr\n\t" + ); +} + +void *arch_get_thread_stackbase(void) +{ + return (void *)CONFIG_STACK_BOTTOM; +} diff --git a/src/arch/arm/boot.c b/src/arch/arm/boot.c new file mode 100644 index 0000000..d872a79 --- /dev/null +++ b/src/arch/arm/boot.c @@ -0,0 +1,28 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/console.h> +#include <arch/stages.h> +#include <payload_loader.h> + +void arch_payload_run(const struct payload *payload) +{ + printk(BIOS_SPEW, "entry = %p\n", payload->entry); + stage_exit(payload->entry); +} diff --git a/src/arch/arm/bootblock.ld b/src/arch/arm/bootblock.ld new file mode 100644 index 0000000..706f0a2 --- /dev/null +++ b/src/arch/arm/bootblock.ld @@ -0,0 +1,57 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2006 Advanced Micro Devices, Inc. + * Copyright (C) 2008-2010 coresystems GmbH + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* We use ELF as output format. So that we can debug the code in some form. */ +OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +INCLUDE ldoptions + +PHDRS +{ + to_load PT_LOAD; +} + +TARGET(binary) +SECTIONS +{ + ROMLOC = CONFIG_BOOTBLOCK_BASE; + + /* This section might be better named .setup */ + .rom ROMLOC : { + _rom = .; + *(.start); + *(.id); + *(.text); + *(.text.*); + *(.rom.text); + *(.rom.data); + *(.rom.data.*); + *(.rodata.*); + _erom = .; + } : to_load = 0xff + + /DISCARD/ : { + *(.comment) + *(.note) + *(.comment.*) + *(.note.*) + *(.ARM.*) + } +} diff --git a/src/arch/arm/cpu.c b/src/arch/arm/cpu.c new file mode 100644 index 0000000..f90c759 --- /dev/null +++ b/src/arch/arm/cpu.c @@ -0,0 +1,42 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ +#include <stdlib.h> +#include <arch/cpu.h> + +/* Return the cpu struct which is at the high memory address of the stack. + */ +struct cpu_info *cpu_info(void) +{ + uintptr_t addr = ALIGN((uintptr_t)__builtin_frame_address(0), + CONFIG_STACK_SIZE); + addr -= sizeof(struct cpu_info); + return (void *)addr; +} + diff --git a/src/arch/arm/div0.c b/src/arch/arm/div0.c new file mode 100644 index 0000000..ab06ad3 --- /dev/null +++ b/src/arch/arm/div0.c @@ -0,0 +1,33 @@ +/* + * (C) Copyright 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <console/console.h> + +void __div0(void); // called from asm so no need for a prototype in a header + +/* Replacement (=dummy) for GNU/Linux division-by zero handler */ +/* recursion is ok here because we have no formats ... */ +void __div0 (void) +{ + printk(BIOS_EMERG, "DIVIDE BY ZERO! continuing ... \n"); +} diff --git a/src/arch/arm/eabi_compat.c b/src/arch/arm/eabi_compat.c new file mode 100644 index 0000000..0c79cd5 --- /dev/null +++ b/src/arch/arm/eabi_compat.c @@ -0,0 +1,31 @@ +/* + * Utility functions needed for (some) EABI conformant tool chains. + * + * (C) Copyright 2009 Wolfgang Denk wd@denx.de + * + * This program is Free Software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + */ + +#include <console/console.h> + +/* FIXME(dhendrix): prototypes added for assembler */ +int raise (int signum) __attribute__((used)); +int raise (int signum) +{ + printk(BIOS_CRIT, "raise: Signal # %d caught\n", signum); + return 0; +} + +/* Dummy function to avoid linker complaints */ +void __aeabi_unwind_cpp_pr0(void) __attribute__((used)); +void __aeabi_unwind_cpp_pr0(void) +{ +}; + +void __aeabi_unwind_cpp_pr1(void) __attribute__((used)); +void __aeabi_unwind_cpp_pr1(void) +{ +}; diff --git a/src/arch/arm/id.S b/src/arch/arm/id.S new file mode 100644 index 0000000..a588f1e --- /dev/null +++ b/src/arch/arm/id.S @@ -0,0 +1,20 @@ +#include <build.h> + + .section ".id", "a", %progbits + + .globl __id_start +__id_start: +ver: + .asciz COREBOOT_VERSION +vendor: + .asciz CONFIG_MAINBOARD_VENDOR +part: + .asciz CONFIG_MAINBOARD_PART_NUMBER +.long __id_end - ver /* Reverse offset to the vendor id */ +.long __id_end - vendor /* Reverse offset to the vendor id */ +.long __id_end - part /* Reverse offset to the part number */ +.long CONFIG_ROM_SIZE /* Size of this romimage */ + .globl __id_end + +__id_end: +.previous diff --git a/src/arch/arm/include/arch/boot/boot.h b/src/arch/arm/include/arch/boot/boot.h new file mode 100644 index 0000000..08651cd --- /dev/null +++ b/src/arch/arm/include/arch/boot/boot.h @@ -0,0 +1,8 @@ +#ifndef ASM_ARM_BOOT_H +#define ASM_ARM_BOOT_H + +#define ELF_CLASS ELFCLASS32 +#define ELF_DATA ELFDATA2LSB +#define ELF_ARCH EM_ARM + +#endif /* ASM_ARM_BOOT_H */ diff --git a/src/arch/arm/include/arch/byteorder.h b/src/arch/arm/include/arch/byteorder.h new file mode 100644 index 0000000..8dc069f --- /dev/null +++ b/src/arch/arm/include/arch/byteorder.h @@ -0,0 +1,27 @@ +#ifndef _BYTEORDER_H +#define _BYTEORDER_H + +#define __LITTLE_ENDIAN 1234 + +#include <stdint.h> +#include <swab.h> + +#define cpu_to_le64(x) ((uint64_t)(x)) +#define le64_to_cpu(x) ((uint64_t)(x)) +#define cpu_to_le32(x) ((uint32_t)(x)) +#define le32_to_cpu(x) ((uint32_t)(x)) +#define cpu_to_le16(x) ((uint16_t)(x)) +#define le16_to_cpu(x) ((uint16_t)(x)) +#define cpu_to_be64(x) swab64(x) +#define be64_to_cpu(x) swab64(x) +#define cpu_to_be32(x) swab32((x)) +#define be32_to_cpu(x) swab32((x)) +#define cpu_to_be16(x) swab16((x)) +#define be16_to_cpu(x) swab16((x)) + +#define ntohll(x) be64_to_cpu(x) +#define htonll(x) cpu_to_be64(x) +#define ntohl(x) be32_to_cpu(x) +#define htonl(x) cpu_to_be32(x) + +#endif /* _BYTEORDER_H */ diff --git a/src/arch/arm/include/arch/early_variables.h b/src/arch/arm/include/arch/early_variables.h new file mode 100644 index 0000000..cec0a46 --- /dev/null +++ b/src/arch/arm/include/arch/early_variables.h @@ -0,0 +1,59 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +#ifndef ARCH_EARLY_VARIABLES_H +#define ARCH_EARLY_VARIABLES_H + +#ifdef __PRE_RAM__ +#define CAR_GLOBAL __attribute__((section(".car.global_data"))) +#define CAR_CBMEM __attribute__((section(".car.cbmem_console"))) +#else +#define CAR_GLOBAL +#define CAR_CBMEM +#endif + +#if defined(__PRE_RAM__) +#define CAR_MIGRATE_ATTR __attribute__ ((used,section (".car.migrate"))) + +/* Call migrate_fn_() when CAR globals are migrated. */ +#define CAR_MIGRATE(migrate_fn_) \ + static void (* const migrate_fn_ ## _ptr)(void) CAR_MIGRATE_ATTR = \ + migrate_fn_; + +/* Get the correct pointer for the CAR global variable. */ +void *car_get_var_ptr(void *var); + +/* Get and set a primitive type global variable. */ +#define car_get_var(var) \ + *(typeof(var) *)car_get_var_ptr(&(var)) +#define car_set_var(var, val) \ + do { car_get_var(var) = (val); } while(0) + +/* Migrate the CAR variables to memory. */ +void car_migrate_variables(void); + +#else +#define CAR_MIGRATE(migrate_fn_) +static inline void *car_get_var_ptr(void *var) { return var; } +#define car_get_var(var) (var) +#define car_set_var(var, val) do { (var) = (val); } while (0) +static inline void car_migrate_variables(void) { } +#endif + +#endif diff --git a/src/arch/arm/include/arch/exception.h b/src/arch/arm/include/arch/exception.h new file mode 100644 index 0000000..57076bd --- /dev/null +++ b/src/arch/arm/include/arch/exception.h @@ -0,0 +1,38 @@ +/* + * This file is part of the libpayload project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _ARCH_EXCEPTION_H +#define _ARCH_EXCEPTION_H + +#include <stdint.h> + +void exception_init(void); +void set_vbar(uint32_t vbar); + +#endif diff --git a/src/arch/arm/include/arch/hlt.h b/src/arch/arm/include/arch/hlt.h new file mode 100644 index 0000000..285b6f8 --- /dev/null +++ b/src/arch/arm/include/arch/hlt.h @@ -0,0 +1,9 @@ +#ifndef ARCH_HLT_H +#define ARCH_HLT_H + +static inline __attribute__((always_inline)) void hlt(void) +{ + for (;;) ; +} + +#endif /* ARCH_HLT_H */ diff --git a/src/arch/arm/include/arch/io.h b/src/arch/arm/include/arch/io.h new file mode 100644 index 0000000..e537297 --- /dev/null +++ b/src/arch/arm/include/arch/io.h @@ -0,0 +1,94 @@ +/* + * Originally imported from linux/include/asm-arm/io.h. This file has changed + * substantially since then. + * + * Copyright 2013 Google Inc. + * Copyright (C) 1996-2000 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Modifications: + * 08-Apr-2013 G Replaced several macros with inlines for type safety. + * 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both + * constant addresses and variable addresses. + * 04-Dec-1997 RMK Moved a lot of this stuff to the new architecture + * specific IO header files. + * 27-Mar-1999 PJB Second parameter of memcpy_toio is const.. + * 04-Apr-1999 PJB Added check_signature. + * 12-Dec-1999 RMK More cleanups + * 18-Jun-2000 RMK Removed virt_to_* and friends definitions + */ +#ifndef __ASM_ARM_IO_H +#define __ASM_ARM_IO_H + +#include <arch/byteorder.h> +#include <arch/arch_io.h> +#include <stdint.h> + +/* + * FIXME: These are to avoid breaking existing ARM code. We should eventually + * re-factor all code to specify the data length intended. + */ +#define readb(a) read8(a) +#define writeb(v,a) write8(v,a) +#define readl(a) read32(a) +#define writel(v,a) write32(v,a) + +/* + * Clear and set bits in one shot. These macros can be used to clear and + * set multiple bits in a register using a single call. These macros can + * also be used to set a multiple-bit bit pattern using a mask, by + * specifying the mask in the 'clear' parameter and the new bit pattern + * in the 'set' parameter. + */ + +#define out_arch(type,endian,a,v) write##type(cpu_to_##endian(v),a) +#define in_arch(type,endian,a) endian##_to_cpu(read##type(a)) + +#define out_le32(a,v) out_arch(l,le32,a,v) +#define out_le16(a,v) out_arch(w,le16,a,v) + +#define in_le32(a) in_arch(l,le32,a) +#define in_le16(a) in_arch(w,le16,a) + +#define out_be32(a,v) out_arch(l,be32,a,v) +#define out_be16(a,v) out_arch(w,be16,a,v) + +#define in_be32(a) in_arch(l,be32,a) +#define in_be16(a) in_arch(w,be16,a) + +#define out_8(a,v) writeb(v,a) +#define in_8(a) readb(a) + +#define clrbits(type, addr, clear) \ + out_##type((addr), in_##type(addr) & ~(clear)) + +#define setbits(type, addr, set) \ + out_##type((addr), in_##type(addr) | (set)) + +#define clrsetbits(type, addr, clear, set) \ + out_##type((addr), (in_##type(addr) & ~(clear)) | (set)) + +#define clrbits_be32(addr, clear) clrbits(be32, addr, clear) +#define setbits_be32(addr, set) setbits(be32, addr, set) +#define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set) + +#define clrbits_le32(addr, clear) clrbits(le32, addr, clear) +#define setbits_le32(addr, set) setbits(le32, addr, set) +#define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set) + +#define clrbits_be16(addr, clear) clrbits(be16, addr, clear) +#define setbits_be16(addr, set) setbits(be16, addr, set) +#define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set) + +#define clrbits_le16(addr, clear) clrbits(le16, addr, clear) +#define setbits_le16(addr, set) setbits(le16, addr, set) +#define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set) + +#define clrbits_8(addr, clear) clrbits(8, addr, clear) +#define setbits_8(addr, set) setbits(8, addr, set) +#define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set) + +#endif /* __ASM_ARM_IO_H */ diff --git a/src/arch/arm/include/arch/pci_ops.h b/src/arch/arm/include/arch/pci_ops.h new file mode 100644 index 0000000..faa7701 --- /dev/null +++ b/src/arch/arm/include/arch/pci_ops.h @@ -0,0 +1,25 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef ARCH_ARM_PCI_OPS_H +#define ARCH_ARM_PCI_OPS_H + +/* Empty stub until PCI includes are properly fixed. */ + +#endif diff --git a/src/arch/arm/include/arch/stages.h b/src/arch/arm/include/arch/stages.h new file mode 100644 index 0000000..39fed99 --- /dev/null +++ b/src/arch/arm/include/arch/stages.h @@ -0,0 +1,28 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 The ChromiumOS Authors + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __ARCH_STAGES_H +#define __ARCH_STAGES_H + +extern void main(void); + +void stage_entry(void) __attribute__((section(".text.stage_entry.arm"))); +void stage_exit(void *); + +#endif diff --git a/src/arch/arm/include/armv7.h b/src/arch/arm/include/armv7.h new file mode 100644 index 0000000..1473234 --- /dev/null +++ b/src/arch/arm/include/armv7.h @@ -0,0 +1,76 @@ +/* + * (C) Copyright 2010 + * Texas Instruments, <www.ti.com> + * Aneesh V aneesh@ti.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#ifndef ARMV7_H +#define ARMV7_H +#include <types.h> + +/* Cortex-A9 revisions */ +#define MIDR_CORTEX_A9_R0P1 0x410FC091 +#define MIDR_CORTEX_A9_R1P2 0x411FC092 +#define MIDR_CORTEX_A9_R1P3 0x411FC093 +#define MIDR_CORTEX_A9_R2P10 0x412FC09A + +/* Cortex-A15 revisions */ +#define MIDR_CORTEX_A15_R0P0 0x410FC0F0 + +/* CCSIDR */ +#define CCSIDR_LINE_SIZE_OFFSET 0 +#define CCSIDR_LINE_SIZE_MASK 0x7 +#define CCSIDR_ASSOCIATIVITY_OFFSET 3 +#define CCSIDR_ASSOCIATIVITY_MASK (0x3FF << 3) +#define CCSIDR_NUM_SETS_OFFSET 13 +#define CCSIDR_NUM_SETS_MASK (0x7FFF << 13) + +/* + * Values for InD field in CSSELR + * Selects the type of cache + */ +#define ARMV7_CSSELR_IND_DATA_UNIFIED 0 +#define ARMV7_CSSELR_IND_INSTRUCTION 1 + +/* Values for Ctype fields in CLIDR */ +#define ARMV7_CLIDR_CTYPE_NO_CACHE 0 +#define ARMV7_CLIDR_CTYPE_INSTRUCTION_ONLY 1 +#define ARMV7_CLIDR_CTYPE_DATA_ONLY 2 +#define ARMV7_CLIDR_CTYPE_INSTRUCTION_DATA 3 +#define ARMV7_CLIDR_CTYPE_UNIFIED 4 + +/* + * CP15 Barrier instructions + * Please note that we have separate barrier instructions in ARMv7 + * However, we use the CP15 based instructions because we use + * -march=armv5 in U-Boot + */ +#define CP15ISB asm volatile ("mcr p15, 0, %0, c7, c5, 4" : : "r" (0)) +#define CP15DSB asm volatile ("mcr p15, 0, %0, c7, c10, 4" : : "r" (0)) +#define CP15DMB asm volatile ("mcr p15, 0, %0, c7, c10, 5" : : "r" (0)) + +void v7_outer_cache_enable(void); +void v7_outer_cache_disable(void); +void v7_outer_cache_flush_all(void); +void v7_outer_cache_inval_all(void); +void v7_outer_cache_flush_range(u32 start, u32 end); +void v7_outer_cache_inval_range(u32 start, u32 end); + +#endif diff --git a/src/arch/arm/include/armv7/arch/arch_io.h b/src/arch/arm/include/armv7/arch/arch_io.h new file mode 100644 index 0000000..360fa64 --- /dev/null +++ b/src/arch/arm/include/armv7/arch/arch_io.h @@ -0,0 +1,68 @@ +/* + * Originally imported from linux/include/asm-arm/io.h. This file has changed + * substantially since then. + * + * Copyright 2013 Google Inc. + * Copyright (C) 1996-2000 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Modifications: + * 08-Apr-2013 G Replaced several macros with inlines for type safety. + * 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both + * constant addresses and variable addresses. + * 04-Dec-1997 RMK Moved a lot of this stuff to the new architecture + * specific IO header files. + * 27-Mar-1999 PJB Second parameter of memcpy_toio is const.. + * 04-Apr-1999 PJB Added check_signature. + * 12-Dec-1999 RMK More cleanups + * 18-Jun-2000 RMK Removed virt_to_* and friends definitions + */ +#ifndef __ASM_ARM_ARCH_IO_H +#define __ASM_ARM_ARCH_IO_H + +#include <arch/cache.h> /* for dmb() */ +#include <stdint.h> + +static inline uint8_t read8(const void *addr) +{ + dmb(); + return *(volatile uint8_t *)addr; +} + +static inline uint16_t read16(const void *addr) +{ + dmb(); + return *(volatile uint16_t *)addr; +} + +static inline uint32_t read32(const void *addr) +{ + dmb(); + return *(volatile uint32_t *)addr; +} + +static inline void write8(uint8_t val, void *addr) +{ + dmb(); + *(volatile uint8_t *)addr = val; + dmb(); +} + +static inline void write16(uint16_t val, void *addr) +{ + dmb(); + *(volatile uint16_t *)addr = val; + dmb(); +} + +static inline void write32(uint32_t val, void *addr) +{ + dmb(); + *(volatile uint32_t *)addr = val; + dmb(); +} + +#endif /* __ASM_ARM_ARCH_IO_H */ diff --git a/src/arch/arm/include/armv7/arch/cache.h b/src/arch/arm/include/armv7/arch/cache.h new file mode 100644 index 0000000..ffdb55a --- /dev/null +++ b/src/arch/arm/include/armv7/arch/cache.h @@ -0,0 +1,341 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * cache.h: Cache maintenance API for ARM + */ + +#ifndef ARM_CACHE_H +#define ARM_CACHE_H + +#include <stddef.h> +#include <stdint.h> + +/* SCTLR bits */ +#define SCTLR_M (1 << 0) /* MMU enable */ +#define SCTLR_A (1 << 1) /* Alignment check enable */ +#define SCTLR_C (1 << 2) /* Data/unified cache enable */ +/* Bits 4:3 are reserved */ +#define SCTLR_CP15BEN (1 << 5) /* CP15 barrier enable */ +/* Bit 6 is reserved */ +#define SCTLR_B (1 << 7) /* Endianness */ +/* Bits 9:8 */ +#define SCTLR_SW (1 << 10) /* SWP and SWPB enable */ +#define SCTLR_Z (1 << 11) /* Branch prediction enable */ +#define SCTLR_I (1 << 12) /* Instruction cache enable */ +#define SCTLR_V (1 << 13) /* Low/high exception vectors */ +#define SCTLR_RR (1 << 14) /* Round Robin select */ +/* Bits 16:15 are reserved */ +#define SCTLR_HA (1 << 17) /* Hardware Access flag enable */ +/* Bit 18 is reserved */ +/* Bits 20:19 reserved virtualization not supported */ +#define SCTLR_WXN (1 << 19) /* Write permission implies XN */ +#define SCTLR_UWXN (1 << 20) /* Unprivileged write permission + implies PL1 XN */ +#define SCTLR_FI (1 << 21) /* Fast interrupt config enable */ +#define SCTLR_U (1 << 22) /* Unaligned access behavior */ +#define SCTLR_VE (1 << 24) /* Interrupt vectors enable */ +#define SCTLR_EE (1 << 25) /* Exception endianness */ +/* Bit 26 is reserved */ +#define SCTLR_NMFI (1 << 27) /* Non-maskable FIQ support */ +#define SCTLR_TRE (1 << 28) /* TEX remap enable */ +#define SCTLR_AFE (1 << 29) /* Access flag enable */ +#define SCTLR_TE (1 << 30) /* Thumb exception enable */ +/* Bit 31 is reserved */ + +/* + * Sync primitives + */ + +/* data memory barrier */ +static inline void dmb(void) +{ + asm volatile ("dmb" : : : "memory"); +} + +/* data sync barrier */ +static inline void dsb(void) +{ + asm volatile ("dsb" : : : "memory"); +} + +/* instruction sync barrier */ +static inline void isb(void) +{ + asm volatile ("isb" : : : "memory"); +} + +/* + * Low-level TLB maintenance operations + */ + +/* invalidate entire data TLB */ +static inline void dtlbiall(void) +{ + asm volatile ("mcr p15, 0, %0, c8, c6, 0" : : "r" (0) : "memory"); +} + +/* invalidate entire instruction TLB */ +static inline void itlbiall(void) +{ + asm volatile ("mcr p15, 0, %0, c8, c5, 0" : : "r" (0)); +} + +/* invalidate entire unified TLB */ +static inline void tlbiall(void) +{ + asm volatile ("mcr p15, 0, %0, c8, c7, 0" : : "r" (0) : "memory"); +} + +/* invalidate unified TLB by MVA, all ASID */ +static inline void tlbimvaa(unsigned long mva) +{ + asm volatile ("mcr p15, 0, %0, c8, c7, 3" : : "r" (mva) : "memory"); +} + +/* write data access control register (DACR) */ +static inline void write_dacr(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c3, c0, 0" : : "r" (val)); +} + +/* write translation table base register 0 (TTBR0) */ +static inline void write_ttbr0(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c2, c0, 0" : : "r" (val) : "memory"); +} + +/* read translation table base control register (TTBCR) */ +static inline uint32_t read_ttbcr(void) +{ + uint32_t val = 0; + asm volatile ("mrc p15, 0, %0, c2, c0, 2" : "=r" (val)); + return val; +} + +/* write translation table base control register (TTBCR) */ +static inline void write_ttbcr(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c2, c0, 2" : : "r" (val) : "memory"); +} + +/* + * Low-level cache maintenance operations + */ + +/* branch predictor invalidate all */ +static inline void bpiall(void) +{ + asm volatile ("mcr p15, 0, %0, c7, c5, 6" : : "r" (0)); +} + +/* data cache clean and invalidate by MVA to PoC */ +static inline void dccimvac(unsigned long mva) +{ + asm volatile ("mcr p15, 0, %0, c7, c14, 1" : : "r" (mva) : "memory"); +} + +/* data cache invalidate by set/way */ +static inline void dccisw(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c7, c14, 2" : : "r" (val) : "memory"); +} + +/* data cache clean by MVA to PoC */ +static inline void dccmvac(unsigned long mva) +{ + asm volatile ("mcr p15, 0, %0, c7, c10, 1" : : "r" (mva) : "memory"); +} + +/* data cache clean by set/way */ +static inline void dccsw(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c7, c10, 2" : : "r" (val) : "memory"); +} + +/* data cache invalidate by MVA to PoC */ +static inline void dcimvac(unsigned long mva) +{ + asm volatile ("mcr p15, 0, %0, c7, c6, 1" : : "r" (mva) : "memory"); +} + +/* data cache invalidate by set/way */ +static inline void dcisw(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c7, c6, 2" : : "r" (val) : "memory"); +} + +/* instruction cache invalidate all by PoU */ +static inline void iciallu(void) +{ + asm volatile ("mcr p15, 0, %0, c7, c5, 0" : : "r" (0)); +} + +/* + * Cache co-processor (CP15) access functions + */ + +/* read cache level ID register (CLIDR) */ +static inline uint32_t read_clidr(void) +{ + uint32_t val = 0; + asm volatile ("mrc p15, 1, %0, c0, c0, 1" : "=r" (val)); + return val; +} + +/* read cache size ID register register (CCSIDR) */ +static inline uint32_t read_ccsidr(void) +{ + uint32_t val = 0; + asm volatile ("mrc p15, 1, %0, c0, c0, 0" : "=r" (val)); + return val; +} + +/* read cache size selection register (CSSELR) */ +static inline uint32_t read_csselr(void) +{ + uint32_t val = 0; + asm volatile ("mrc p15, 2, %0, c0, c0, 0" : "=r" (val)); + return val; +} + +/* write to cache size selection register (CSSELR) */ +static inline void write_csselr(uint32_t val) +{ + /* + * Bits [3:1] - Cache level + 1 (0b000 = L1, 0b110 = L7, 0b111 is rsvd) + * Bit 0 - 0 = data or unified cache, 1 = instruction cache + */ + asm volatile ("mcr p15, 2, %0, c0, c0, 0" : : "r" (val)); + isb(); /* ISB to sync the change to CCSIDR */ +} + +/* read L2 control register (L2CTLR) */ +static inline uint32_t read_l2ctlr(void) +{ + uint32_t val = 0; + asm volatile ("mrc p15, 1, %0, c9, c0, 2" : "=r" (val)); + return val; +} + +/* write L2 control register (L2CTLR) */ +static inline void write_l2ctlr(uint32_t val) +{ + /* + * Note: L2CTLR can only be written when the L2 memory system + * is idle, ie before the MMU is enabled. + */ + asm volatile("mcr p15, 1, %0, c9, c0, 2" : : "r" (val) : "memory" ); + isb(); +} + +/* read L2 Auxiliary Control Register (L2ACTLR) */ +static inline uint32_t read_l2actlr(void) +{ + uint32_t val = 0; + asm volatile ("mrc p15, 1, %0, c15, c0, 0" : "=r" (val)); + return val; +} + +/* write L2 Auxiliary Control Register (L2ACTLR) */ +static inline void write_l2actlr(uint32_t val) +{ + asm volatile ("mcr p15, 1, %0, c15, c0, 0" : : "r" (val) : "memory" ); + isb(); +} + +/* read system control register (SCTLR) */ +static inline uint32_t read_sctlr(void) +{ + uint32_t val; + asm volatile ("mrc p15, 0, %0, c1, c0, 0" : "=r" (val)); + return val; +} + +/* write system control register (SCTLR) */ +static inline void write_sctlr(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c1, c0, 0" : : "r" (val) : "cc"); + isb(); +} + +/* + * Cache maintenance API + */ + +/* dcache clean and invalidate all (on current level given by CCSELR) */ +void dcache_clean_invalidate_all(void); + +/* dcache clean by modified virtual address to PoC */ +void dcache_clean_by_mva(void const *addr, size_t len); + +/* dcache clean and invalidate by modified virtual address to PoC */ +void dcache_clean_invalidate_by_mva(void const *addr, size_t len); + +/* dcache invalidate by modified virtual address to PoC */ +void dcache_invalidate_by_mva(void const *addr, size_t len); + +void dcache_clean_all(void); + +/* dcache invalidate all (on current level given by CCSELR) */ +void dcache_invalidate_all(void); + +/* dcache and MMU disable */ +void dcache_mmu_disable(void); + +/* dcache and MMU enable */ +void dcache_mmu_enable(void); + +/* icache invalidate all (on current level given by CSSELR) */ +void icache_invalidate_all(void); + +/* tlb invalidate all */ +void tlb_invalidate_all(void); + +/* + * Generalized setup/init functions + */ + +/* invalidate all caches on ARM */ +void arm_invalidate_caches(void); + +/* mmu initialization (set page table address, set permissions, etc) */ +void mmu_init(void); + +enum dcache_policy { + DCACHE_OFF, + DCACHE_WRITEBACK, + DCACHE_WRITETHROUGH, +}; + +/* disable the mmu for a range. Primarily useful to lock out address 0. */ +void mmu_disable_range(unsigned long start_mb, unsigned long size_mb); +/* mmu range configuration (set dcache policy) */ +void mmu_config_range(unsigned long start_mb, unsigned long size_mb, + enum dcache_policy policy); + +#endif /* ARM_CACHE_H */ diff --git a/src/arch/arm/include/armv7/arch/cpu.h b/src/arch/arm/include/armv7/arch/cpu.h new file mode 100644 index 0000000..52cc8a3 --- /dev/null +++ b/src/arch/arm/include/armv7/arch/cpu.h @@ -0,0 +1,108 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2012 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +#ifndef __ARCH_CPU_H__ +#define __ARCH_CPU_H__ + +#define asmlinkage + +#if !defined(__PRE_RAM__) +#include <device/device.h> + +struct cpu_driver { + struct device_operations *ops; + struct cpu_device_id *id_table; +}; + +struct thread; + +struct cpu_info { + device_t cpu; + unsigned long index; +#if CONFIG_COOP_MULTITASKING + struct thread *thread; +#endif +}; + +struct cpuinfo_arm { + uint8_t arm; /* CPU family */ + uint8_t arm_vendor; /* CPU vendor */ + uint8_t arm_model; +}; + +#endif + +/* Primitives for CPU and MP cores. */ + +/* read Main Id register (MIDR) */ +inline static uint32_t read_midr(void) +{ + uint32_t value; + asm volatile ("mrc p15, 0, %0, c0, c0, 0" : "=r"(value)); + return value; +} + +/* read Multiprocessor Affinity Register (MPIDR) */ +inline static uint32_t read_mpidr(void) +{ + uint32_t value; + asm volatile ("mrc p15, 0, %0, c0, c0, 5" : "=r"(value)); + return value; +} + +/* read Auxiliary Control Register (ACTLR) */ +inline static uint32_t read_actlr(void) +{ + uint32_t val = 0; + asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r"(val)); + return val; +} + +/* write Auxiliary Control Register (ACTLR) */ +inline static void write_actlr(uint32_t val) +{ + asm volatile ("mcr p15, 0, %0, c1, c0, 1" : : "r" (val)); +} + +/* wait for interrupt. */ +inline static void wfi(void) +{ + asm volatile ("wfi" : : : "memory"); +} + +/* wait for event. */ +inline static void wfe(void) +{ + asm volatile ("wfe"); +} + +/* set event (to bring up cores in WFE state). */ +inline static void sev(void) +{ + asm volatile ("sev"); +} + +/* puts CPU into System mode and disable interrupts. */ +inline static void set_system_mode(void) +{ + asm volatile("msr cpsr_c, %0" :: "r"(0x1f | 0xc0)); +} + +struct cpu_info *cpu_info(void); +#endif /* __ARCH_CPU_H__ */ diff --git a/src/arch/arm/include/armv7/arch/types.h b/src/arch/arm/include/armv7/arch/types.h new file mode 100644 index 0000000..be7e76c --- /dev/null +++ b/src/arch/arm/include/armv7/arch/types.h @@ -0,0 +1,46 @@ +#ifndef __ASM_ARM_TYPES_H +#define __ASM_ARM_TYPES_H + +typedef unsigned short umode_t; + +/* + * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the + * header files exported to user space + */ + +typedef __signed__ char __s8; +typedef unsigned char __u8; + +typedef __signed__ short __s16; +typedef unsigned short __u16; + +typedef __signed__ int __s32; +typedef unsigned int __u32; + +#if defined(__GNUC__) +__extension__ typedef __signed__ long long __s64; +__extension__ typedef unsigned long long __u64; +#endif + +typedef signed char s8; +typedef unsigned char u8; + +typedef signed short s16; +typedef unsigned short u16; + +typedef signed int s32; +typedef unsigned int u32; + +typedef signed long long s64; +typedef unsigned long long u64; + +#define BITS_PER_LONG 32 + +/* Dma addresses are 32-bits wide. */ + +typedef u32 dma_addr_t; + +typedef unsigned long phys_addr_t; +typedef unsigned long phys_size_t; + +#endif diff --git a/src/arch/arm/include/assembler.h b/src/arch/arm/include/assembler.h new file mode 100644 index 0000000..10363c4 --- /dev/null +++ b/src/arch/arm/include/assembler.h @@ -0,0 +1,62 @@ +/* + * arch/arm/include/asm/assembler.h + * + * Copyright (C) 1996-2000 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This file contains arm architecture specific defines + * for the different processors. + * + * Do not include any C declarations in this file - it is included by + * assembler source. + */ + +/* + * Endian independent macros for shifting bytes within registers. + */ +#ifndef __ARMEB__ +#define pull lsr +#define push lsl +#define get_byte_0 lsl #0 +#define get_byte_1 lsr #8 +#define get_byte_2 lsr #16 +#define get_byte_3 lsr #24 +#define put_byte_0 lsl #0 +#define put_byte_1 lsl #8 +#define put_byte_2 lsl #16 +#define put_byte_3 lsl #24 +#else +#define pull lsl +#define push lsr +#define get_byte_0 lsr #24 +#define get_byte_1 lsr #16 +#define get_byte_2 lsr #8 +#define get_byte_3 lsl #0 +#define put_byte_0 lsl #24 +#define put_byte_1 lsl #16 +#define put_byte_2 lsl #8 +#define put_byte_3 lsl #0 +#endif + +/* + * Data preload for architectures that support it + */ +#if defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) || \ + defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || \ + defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_6Z__) || \ + defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_7A__) || \ + defined(__ARM_ARCH_7R__) +#define PLD(code...) code +#else +#define PLD(code...) +#endif + +/* + * Cache aligned + */ +#define CALGN(code...) code + +#define W(instr) instr diff --git a/src/arch/arm/include/bootblock_common.h b/src/arch/arm/include/bootblock_common.h new file mode 100644 index 0000000..034a12b --- /dev/null +++ b/src/arch/arm/include/bootblock_common.h @@ -0,0 +1,15 @@ +#if CONFIG_CPU_HAS_BOOTBLOCK_INIT +void bootblock_cpu_init(void); +#else +static void __attribute__((unused)) bootblock_cpu_init(void) +{ +} +#endif + +#if CONFIG_MAINBOARD_HAS_BOOTBLOCK_INIT +void bootblock_mainboard_init(void); +#else +static void __attribute__((unused)) bootblock_mainboard_init(void) +{ +} +#endif diff --git a/src/arch/arm/include/clocks.h b/src/arch/arm/include/clocks.h new file mode 100644 index 0000000..58cf838 --- /dev/null +++ b/src/arch/arm/include/clocks.h @@ -0,0 +1,43 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* Standard clock speeds */ + +/* + * We define some commonly-used clock speeds to avoid error since long + * numbers are hard to read. + * + * The format of the label is + * CLK_x_yU where: + * x is the integer speed + * y is the fractional part which can be omitted if 0 + * U is the units (blank for Hz, K or M for KHz and MHz) + * + * Please order the items by increasing Hz + */ +enum { + CLK_32768 = 32768, + CLK_20M = 20000000, + CLK_24M = 24000000, + CLK_144M = 144000000, + CLK_216M = 216000000, + CLK_300M = 300000000, +}; diff --git a/src/arch/arm/include/smp/spinlock.h b/src/arch/arm/include/smp/spinlock.h new file mode 100644 index 0000000..1dc397c --- /dev/null +++ b/src/arch/arm/include/smp/spinlock.h @@ -0,0 +1,52 @@ +#ifndef ARCH_SMP_SPINLOCK_H +#define ARCH_SMP_SPINLOCK_H + +/* FIXME: implement this for ARM */ +#error "implement this for ARM" +#if 0 +/* + * Your basic SMP spinlocks, allowing only a single CPU anywhere + */ + +typedef struct { + volatile unsigned int lock; +} spinlock_t; + + +#define SPIN_LOCK_UNLOCKED (spinlock_t) { 1 } +#define DECLARE_SPIN_LOCK(x) static spinlock_t x = SPIN_LOCK_UNLOCKED; + +#define barrier() __asm__ __volatile__("": : :"memory") +#define spin_is_locked(x) (*(volatile char *)(&(x)->lock) != 0) +#define spin_unlock_wait(x) do { barrier(); } while(spin_is_locked(x)) + +static inline __attribute__((always_inline)) void spin_lock(spinlock_t *lock) +{ + unsigned long tmp; + __asm__ __volatile__ ( + "1: ldrex %0, [%1]\n" + " teq %0, #0\n" + " strexeq %0, %2, [%1]\n" + " teqeq %0, #0\n" + " bne 1b\n" + : "=&r" (tmp) + : "r" (&lock->lock), "r" (1) + : "cc" + ); + barrier(); +} + +static inline __attribute__((always_inline)) void spin_unlock(spinlock_t *lock) +{ + __asm__ __volatile__( + " str %1, [%0]\n" + : + : "r" (&lock->lock), "r" (0) + : "cc" + ); +} + +#define cpu_relax() barrier() + +#endif +#endif /* ARCH_SMP_SPINLOCK_H */ diff --git a/src/arch/arm/include/stdint.h b/src/arch/arm/include/stdint.h new file mode 100644 index 0000000..9d41e63 --- /dev/null +++ b/src/arch/arm/include/stdint.h @@ -0,0 +1,93 @@ +#ifndef ARM_STDINT_H +#define ARM_STDINT_H + +#if defined(__GNUC__) +#define __HAVE_LONG_LONG__ 1 +#else +#define __HAVE_LONG_LONG__ 0 +#endif + +/* Exact integral types */ +typedef unsigned char uint8_t; +typedef signed char int8_t; + +typedef unsigned short uint16_t; +typedef signed short int16_t; + +typedef unsigned int uint32_t; +typedef signed int int32_t; + +#if __HAVE_LONG_LONG__ +typedef unsigned long long uint64_t; +typedef signed long long int64_t; +#endif + +/* Small types */ +typedef unsigned char uint_least8_t; +typedef signed char int_least8_t; + +typedef unsigned short uint_least16_t; +typedef signed short int_least16_t; + +typedef unsigned int uint_least32_t; +typedef signed int int_least32_t; + +#if __HAVE_LONG_LONG__ +typedef unsigned long long uint_least64_t; +typedef signed long long int_least64_t; +#endif + +/* Fast Types */ +typedef unsigned char uint_fast8_t; +typedef signed char int_fast8_t; + +typedef unsigned int uint_fast16_t; +typedef signed int int_fast16_t; + +typedef unsigned int uint_fast32_t; +typedef signed int int_fast32_t; + +#if __HAVE_LONG_LONG__ +typedef unsigned long long uint_fast64_t; +typedef signed long long int_fast64_t; +#endif + +/* Types for `void *' pointers. */ +typedef int intptr_t; +typedef unsigned int uintptr_t; + +/* Largest integral types */ +#if __HAVE_LONG_LONG__ +typedef long long int intmax_t; +typedef unsigned long long uintmax_t; +#else +typedef long int intmax_t; +typedef unsigned long int uintmax_t; +#endif + +typedef uint8_t u8; +typedef uint16_t u16; +typedef uint32_t u32; +#if __HAVE_LONG_LONG__ +typedef uint64_t u64; +#endif +typedef int8_t s8; +typedef int16_t s16; +typedef int32_t s32; + +#ifndef UINT32_MAX +#define UINT32_MAX (4294967295U) +#endif +#ifndef UINT64_MAX +# define UINT64_MAX (18446744073709551615ULL) +#endif +#ifndef UINT64_C +#define UINT64_C(c) c ## ULL +#endif +#ifndef PRIu64 +#define PRIu64 "llu" +#endif + +#undef __HAVE_LONG_LONG__ + +#endif /* ARM_STDINT_H */ diff --git a/src/arch/arm/include/utils.h b/src/arch/arm/include/utils.h new file mode 100644 index 0000000..828b86c --- /dev/null +++ b/src/arch/arm/include/utils.h @@ -0,0 +1,56 @@ +/* + * (C) Copyright 2010 + * Texas Instruments, <www.ti.com> + * Aneesh V aneesh@ti.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#ifndef _UTILS_H_ +#define _UTILS_H_ + +static inline s32 log_2_n_round_up(u32 n) +{ + s32 log2n = -1; + u32 temp = n; + + while (temp) { + log2n++; + temp >>= 1; + } + + if (n & (n - 1)) + return log2n + 1; /* not power of 2 - round up */ + else + return log2n; /* power of 2 */ +} + +static inline s32 log_2_n_round_down(u32 n) +{ + s32 log2n = -1; + u32 temp = n; + + while (temp) { + log2n++; + temp >>= 1; + } + + return log2n; +} + +#endif diff --git a/src/arch/arm/memcpy.S b/src/arch/arm/memcpy.S new file mode 100644 index 0000000..921fc2a --- /dev/null +++ b/src/arch/arm/memcpy.S @@ -0,0 +1,244 @@ +/* + * linux/arch/arm/lib/memcpy.S + * + * Author: Nicolas Pitre + * Created: Sep 28, 2005 + * Copyright: MontaVista Software, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <assembler.h> + +#define W(instr) instr + +#define LDR1W_SHIFT 0 +#define STR1W_SHIFT 0 + + .macro ldr1w ptr reg abort + W(ldr) \reg, [\ptr], #4 + .endm + + .macro ldr4w ptr reg1 reg2 reg3 reg4 abort + ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4} + .endm + + .macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort + ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} + .endm + + .macro ldr1b ptr reg cond=al abort + ldr\cond()b \reg, [\ptr], #1 + .endm + + .macro str1w ptr reg abort + W(str) \reg, [\ptr], #4 + .endm + + .macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort + stmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} + .endm + + .macro str1b ptr reg cond=al abort + str\cond()b \reg, [\ptr], #1 + .endm + + .macro enter reg1 reg2 + stmdb sp!, {r0, \reg1, \reg2} + .endm + + .macro exit reg1 reg2 + ldmfd sp!, {r0, \reg1, \reg2} + .endm + + .text + +/* Prototype: void *memcpy(void *dest, const void *src, size_t n); */ + +.type memcpy, function +.globl memcpy +memcpy: + + cmp r0, r1 + moveq pc, lr + + enter r4, lr + + subs r2, r2, #4 + blt 8f + ands ip, r0, #3 + PLD( pld [r1, #0] ) + bne 9f + ands ip, r1, #3 + bne 10f + +1: subs r2, r2, #(28) + stmfd sp!, {r5 - r8} + blt 5f + + CALGN( ands ip, r0, #31 ) + CALGN( rsb r3, ip, #32 ) + CALGN( sbcnes r4, r3, r2 ) @ C is always set here + CALGN( bcs 2f ) + CALGN( adr r4, 6f ) + CALGN( subs r2, r2, r3 ) @ C gets set + CALGN( add pc, r4, ip ) + + PLD( pld [r1, #0] ) +2: PLD( subs r2, r2, #96 ) + PLD( pld [r1, #28] ) + PLD( blt 4f ) + PLD( pld [r1, #60] ) + PLD( pld [r1, #92] ) + +3: PLD( pld [r1, #124] ) +4: ldr8w r1, r3, r4, r5, r6, r7, r8, ip, lr, abort=20f + subs r2, r2, #32 + str8w r0, r3, r4, r5, r6, r7, r8, ip, lr, abort=20f + bge 3b + PLD( cmn r2, #96 ) + PLD( bge 4b ) + +5: ands ip, r2, #28 + rsb ip, ip, #32 +#if LDR1W_SHIFT > 0 + lsl ip, ip, #LDR1W_SHIFT +#endif + addne pc, pc, ip @ C is always clear here + b 7f +6: + .rept (1 << LDR1W_SHIFT) + W(nop) + .endr + ldr1w r1, r3, abort=20f + ldr1w r1, r4, abort=20f + ldr1w r1, r5, abort=20f + ldr1w r1, r6, abort=20f + ldr1w r1, r7, abort=20f + ldr1w r1, r8, abort=20f + ldr1w r1, lr, abort=20f + +#if LDR1W_SHIFT < STR1W_SHIFT + lsl ip, ip, #STR1W_SHIFT - LDR1W_SHIFT +#elif LDR1W_SHIFT > STR1W_SHIFT + lsr ip, ip, #LDR1W_SHIFT - STR1W_SHIFT +#endif + add pc, pc, ip + nop + .rept (1 << STR1W_SHIFT) + W(nop) + .endr + str1w r0, r3, abort=20f + str1w r0, r4, abort=20f + str1w r0, r5, abort=20f + str1w r0, r6, abort=20f + str1w r0, r7, abort=20f + str1w r0, r8, abort=20f + str1w r0, lr, abort=20f + + CALGN( bcs 2b ) + +7: ldmfd sp!, {r5 - r8} + +8: movs r2, r2, lsl #31 + ldr1b r1, r3, ne, abort=21f + ldr1b r1, r4, cs, abort=21f + ldr1b r1, ip, cs, abort=21f + str1b r0, r3, ne, abort=21f + str1b r0, r4, cs, abort=21f + str1b r0, ip, cs, abort=21f + + exit r4, pc + +9: rsb ip, ip, #4 + cmp ip, #2 + ldr1b r1, r3, gt, abort=21f + ldr1b r1, r4, ge, abort=21f + ldr1b r1, lr, abort=21f + str1b r0, r3, gt, abort=21f + str1b r0, r4, ge, abort=21f + subs r2, r2, ip + str1b r0, lr, abort=21f + blt 8b + ands ip, r1, #3 + beq 1b + +10: bic r1, r1, #3 + cmp ip, #2 + ldr1w r1, lr, abort=21f + beq 17f + bgt 18f + + + .macro forward_copy_shift pull push + + subs r2, r2, #28 + blt 14f + + CALGN( ands ip, r0, #31 ) + CALGN( rsb ip, ip, #32 ) + CALGN( sbcnes r4, ip, r2 ) @ C is always set here + CALGN( subcc r2, r2, ip ) + CALGN( bcc 15f ) + +11: stmfd sp!, {r5 - r9} + + PLD( pld [r1, #0] ) + PLD( subs r2, r2, #96 ) + PLD( pld [r1, #28] ) + PLD( blt 13f ) + PLD( pld [r1, #60] ) + PLD( pld [r1, #92] ) + +12: PLD( pld [r1, #124] ) +13: ldr4w r1, r4, r5, r6, r7, abort=19f + mov r3, lr, pull #\pull + subs r2, r2, #32 + ldr4w r1, r8, r9, ip, lr, abort=19f + orr r3, r3, r4, push #\push + mov r4, r4, pull #\pull + orr r4, r4, r5, push #\push + mov r5, r5, pull #\pull + orr r5, r5, r6, push #\push + mov r6, r6, pull #\pull + orr r6, r6, r7, push #\push + mov r7, r7, pull #\pull + orr r7, r7, r8, push #\push + mov r8, r8, pull #\pull + orr r8, r8, r9, push #\push + mov r9, r9, pull #\pull + orr r9, r9, ip, push #\push + mov ip, ip, pull #\pull + orr ip, ip, lr, push #\push + str8w r0, r3, r4, r5, r6, r7, r8, r9, ip, , abort=19f + bge 12b + PLD( cmn r2, #96 ) + PLD( bge 13b ) + + ldmfd sp!, {r5 - r9} + +14: ands ip, r2, #28 + beq 16f + +15: mov r3, lr, pull #\pull + ldr1w r1, lr, abort=21f + subs ip, ip, #4 + orr r3, r3, lr, push #\push + str1w r0, r3, abort=21f + bgt 15b + CALGN( cmp r2, #0 ) + CALGN( bge 11b ) + +16: sub r1, r1, #(\push / 8) + b 8b + + .endm + + + forward_copy_shift pull=8 push=24 + +17: forward_copy_shift pull=16 push=16 + +18: forward_copy_shift pull=24 push=8 diff --git a/src/arch/arm/memmove.S b/src/arch/arm/memmove.S new file mode 100644 index 0000000..a2f9ea1 --- /dev/null +++ b/src/arch/arm/memmove.S @@ -0,0 +1,197 @@ +/* + * linux/arch/arm/lib/memmove.S + * + * Author: Nicolas Pitre + * Created: Sep 28, 2005 + * Copyright: (C) MontaVista Software Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <assembler.h> + + .text + +/* + * Prototype: void *memmove(void *dest, const void *src, size_t n); + * + * Note: + * + * If the memory regions don't overlap, we simply branch to memcpy which is + * normally a bit faster. Otherwise the copy is done going downwards. This + * is a transposition of the code from copy_template.S but with the copy + * occurring in the opposite direction. + */ + +.type memmove, function +.globl memmove +memmove: + subs ip, r0, r1 + cmphi r2, ip + bls memcpy + + stmfd sp!, {r0, r4, lr} + add r1, r1, r2 + add r0, r0, r2 + subs r2, r2, #4 + blt 8f + ands ip, r0, #3 + PLD( pld [r1, #-4] ) + bne 9f + ands ip, r1, #3 + bne 10f + +1: subs r2, r2, #(28) + stmfd sp!, {r5 - r8} + blt 5f + + CALGN( ands ip, r0, #31 ) + CALGN( sbcnes r4, ip, r2 ) @ C is always set here + CALGN( bcs 2f ) + CALGN( adr r4, 6f ) + CALGN( subs r2, r2, ip ) @ C is set here + CALGN( rsb ip, ip, #32 ) + CALGN( add pc, r4, ip ) + + PLD( pld [r1, #-4] ) +2: PLD( subs r2, r2, #96 ) + PLD( pld [r1, #-32] ) + PLD( blt 4f ) + PLD( pld [r1, #-64] ) + PLD( pld [r1, #-96] ) + +3: PLD( pld [r1, #-128] ) +4: ldmdb r1!, {r3, r4, r5, r6, r7, r8, ip, lr} + subs r2, r2, #32 + stmdb r0!, {r3, r4, r5, r6, r7, r8, ip, lr} + bge 3b + PLD( cmn r2, #96 ) + PLD( bge 4b ) + +5: ands ip, r2, #28 + rsb ip, ip, #32 + addne pc, pc, ip @ C is always clear here + b 7f +6: W(nop) + W(ldr) r3, [r1, #-4]! + W(ldr) r4, [r1, #-4]! + W(ldr) r5, [r1, #-4]! + W(ldr) r6, [r1, #-4]! + W(ldr) r7, [r1, #-4]! + W(ldr) r8, [r1, #-4]! + W(ldr) lr, [r1, #-4]! + + add pc, pc, ip + nop + W(nop) + W(str) r3, [r0, #-4]! + W(str) r4, [r0, #-4]! + W(str) r5, [r0, #-4]! + W(str) r6, [r0, #-4]! + W(str) r7, [r0, #-4]! + W(str) r8, [r0, #-4]! + W(str) lr, [r0, #-4]! + + CALGN( bcs 2b ) + +7: ldmfd sp!, {r5 - r8} + +8: movs r2, r2, lsl #31 + ldrneb r3, [r1, #-1]! + ldrcsb r4, [r1, #-1]! + ldrcsb ip, [r1, #-1] + strneb r3, [r0, #-1]! + strcsb r4, [r0, #-1]! + strcsb ip, [r0, #-1] + ldmfd sp!, {r0, r4, pc} + +9: cmp ip, #2 + ldrgtb r3, [r1, #-1]! + ldrgeb r4, [r1, #-1]! + ldrb lr, [r1, #-1]! + strgtb r3, [r0, #-1]! + strgeb r4, [r0, #-1]! + subs r2, r2, ip + strb lr, [r0, #-1]! + blt 8b + ands ip, r1, #3 + beq 1b + +10: bic r1, r1, #3 + cmp ip, #2 + ldr r3, [r1, #0] + beq 17f + blt 18f + + + .macro backward_copy_shift push pull + + subs r2, r2, #28 + blt 14f + + CALGN( ands ip, r0, #31 ) + CALGN( sbcnes r4, ip, r2 ) @ C is always set here + CALGN( subcc r2, r2, ip ) + CALGN( bcc 15f ) + +11: stmfd sp!, {r5 - r9} + + PLD( pld [r1, #-4] ) + PLD( subs r2, r2, #96 ) + PLD( pld [r1, #-32] ) + PLD( blt 13f ) + PLD( pld [r1, #-64] ) + PLD( pld [r1, #-96] ) + +12: PLD( pld [r1, #-128] ) +13: ldmdb r1!, {r7, r8, r9, ip} + mov lr, r3, push #\push + subs r2, r2, #32 + ldmdb r1!, {r3, r4, r5, r6} + orr lr, lr, ip, pull #\pull + mov ip, ip, push #\push + orr ip, ip, r9, pull #\pull + mov r9, r9, push #\push + orr r9, r9, r8, pull #\pull + mov r8, r8, push #\push + orr r8, r8, r7, pull #\pull + mov r7, r7, push #\push + orr r7, r7, r6, pull #\pull + mov r6, r6, push #\push + orr r6, r6, r5, pull #\pull + mov r5, r5, push #\push + orr r5, r5, r4, pull #\pull + mov r4, r4, push #\push + orr r4, r4, r3, pull #\pull + stmdb r0!, {r4 - r9, ip, lr} + bge 12b + PLD( cmn r2, #96 ) + PLD( bge 13b ) + + ldmfd sp!, {r5 - r9} + +14: ands ip, r2, #28 + beq 16f + +15: mov lr, r3, push #\push + ldr r3, [r1, #-4]! + subs ip, ip, #4 + orr lr, lr, r3, pull #\pull + str lr, [r0, #-4]! + bgt 15b + CALGN( cmp r2, #0 ) + CALGN( bge 11b ) + +16: add r1, r1, #(\pull / 8) + b 8b + + .endm + + + backward_copy_shift push=8 pull=24 + +17: backward_copy_shift push=16 pull=16 + +18: backward_copy_shift push=24 pull=8 diff --git a/src/arch/arm/memset.S b/src/arch/arm/memset.S new file mode 100644 index 0000000..a3cc947 --- /dev/null +++ b/src/arch/arm/memset.S @@ -0,0 +1,127 @@ +/* + * linux/arch/arm/lib/memset.S + * + * Copyright (C) 1995-2000 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * ASM optimised string functions + */ +#include <assembler.h> + + .text + .align 5 + .word 0 + +1: subs r2, r2, #4 @ 1 do we have enough + blt 5f @ 1 bytes to align with? + cmp r3, #2 @ 1 + strltb r1, [r0], #1 @ 1 + strleb r1, [r0], #1 @ 1 + strb r1, [r0], #1 @ 1 + add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3)) +/* + * The pointer is now aligned and the length is adjusted. Try doing the + * memset again. + */ + +.type memset, function +.globl memset +memset: + ands r3, r0, #3 @ 1 unaligned? + bne 1b @ 1 +/* + * we know that the pointer in r0 is aligned to a word boundary. + */ + orr r1, r1, r1, lsl #8 + orr r1, r1, r1, lsl #16 + mov r3, r1 + cmp r2, #16 + blt 4f + +#if ! CALGN(1)+0 + +/* + * We need an extra register for this loop - save the return address and + * use the LR + */ + str lr, [sp, #-4]! + mov ip, r1 + mov lr, r1 + +2: subs r2, r2, #64 + stmgeia r0!, {r1, r3, ip, lr} @ 64 bytes at a time. + stmgeia r0!, {r1, r3, ip, lr} + stmgeia r0!, {r1, r3, ip, lr} + stmgeia r0!, {r1, r3, ip, lr} + bgt 2b + ldmeqfd sp!, {pc} @ Now <64 bytes to go. +/* + * No need to correct the count; we're only testing bits from now on + */ + tst r2, #32 + stmneia r0!, {r1, r3, ip, lr} + stmneia r0!, {r1, r3, ip, lr} + tst r2, #16 + stmneia r0!, {r1, r3, ip, lr} + ldr lr, [sp], #4 + +#else + +/* + * This version aligns the destination pointer in order to write + * whole cache lines at once. + */ + + stmfd sp!, {r4-r7, lr} + mov r4, r1 + mov r5, r1 + mov r6, r1 + mov r7, r1 + mov ip, r1 + mov lr, r1 + + cmp r2, #96 + tstgt r0, #31 + ble 3f + + and ip, r0, #31 + rsb ip, ip, #32 + sub r2, r2, ip + movs ip, ip, lsl #(32 - 4) + stmcsia r0!, {r4, r5, r6, r7} + stmmiia r0!, {r4, r5} + tst ip, #(1 << 30) + mov ip, r1 + strne r1, [r0], #4 + +3: subs r2, r2, #64 + stmgeia r0!, {r1, r3-r7, ip, lr} + stmgeia r0!, {r1, r3-r7, ip, lr} + bgt 3b + ldmeqfd sp!, {r4-r7, pc} + + tst r2, #32 + stmneia r0!, {r1, r3-r7, ip, lr} + tst r2, #16 + stmneia r0!, {r4-r7} + ldmfd sp!, {r4-r7, lr} + +#endif + +4: tst r2, #8 + stmneia r0!, {r1, r3} + tst r2, #4 + strne r1, [r0], #4 +/* + * When we get here, we've got less than 4 bytes to zero. We + * may have an unaligned pointer as well. + */ +5: tst r2, #2 + strneb r1, [r0], #1 + strneb r1, [r0], #1 + tst r2, #1 + strneb r1, [r0], #1 + mov pc, lr diff --git a/src/arch/arm/ramstage.ld b/src/arch/arm/ramstage.ld new file mode 100644 index 0000000..cab512e --- /dev/null +++ b/src/arch/arm/ramstage.ld @@ -0,0 +1,134 @@ +/* + * Memory map: + * + * CONFIG_RAMSTAGE_BASE : text segment + * : rodata segment + * : data segment + * : bss segment + * : stack + * : heap + */ +/* + * Bootstrap code for the STPC Consumer + * Copyright (c) 1999 by Net Insight AB. All Rights Reserved. + */ + +/* + * Written by Johan Rydberg, based on work by Daniel Kahlin. + * Rewritten by Eric Biederman + * 2005.12 yhlu add ramstage cross the vga font buffer handling + */ + +/* We use ELF as output format. So that we can debug the code in some form. */ +INCLUDE ldoptions + +ENTRY(stage_entry) + +PHDRS +{ + to_load PT_LOAD; +} + +SECTIONS +{ + . = CONFIG_RAMSTAGE_BASE; + /* First we place the code and read only data (typically const declared). + * This could theoretically be placed in rom. + */ + .text : { + _text = .; + _start = .; + *(.text.stage_entry.arm); + *(.text); + *(.text.*); + . = ALIGN(16); + _etext = .; + } : to_load + + .ctors : { + . = ALIGN(0x100); + __CTOR_LIST__ = .; + *(.ctors); + LONG(0); + __CTOR_END__ = .; + } + + .rodata : { + _rodata = .; + . = ALIGN(4); + pci_drivers = . ; + *(.rodata.pci_driver) + epci_drivers = . ; + cpu_drivers = . ; + *(.rodata.cpu_driver) + ecpu_drivers = . ; + _bs_init_begin = .; + *(.bs_init) + _bs_init_end = .; + *(.rodata) + *(.rodata.*) + /* kevinh/Ispiri - Added an align, because the objcopy tool + * incorrectly converts sections that are not long word aligned. + */ + . = ALIGN(4); + + _erodata = .; + } + /* After the code we place initialized data (typically initialized + * global variables). This gets copied into ram by startup code. + * __data_start and __data_end shows where in ram this should be placed, + * whereas __data_loadstart and __data_loadend shows where in rom to + * copy from. + */ + .data : { + _data = .; + *(.data) + _edata = .; + } + + /* bss does not contain data, it is just a space that should be zero + * initialized on startup. (typically uninitialized global variables) + * crt0.S fills between _bss and _ebss with zeroes. + */ + _bss = .; + .bss . : { + *(.bss) + *(.sbss) + *(COMMON) + } + _ebss = .; + _end = .; + + /* coreboot really "ends" here. Only heap and stack are placed after + * this line. + */ + + _heap = .; + .heap . : { + /* Reserve CONFIG_HEAP_SIZE bytes for the heap */ + . = CONFIG_HEAP_SIZE ; + . = ALIGN(4); + } + _eheap = .; + + /* The ram segment. This includes all memory used by the memory + * resident copy of coreboot, except the tables that are produced on + * the fly, but including stack and heap. + */ + _ram_seg = _text; + _eram_seg = _eheap; + + /* The stack lives in SRAM in a different location, so keep + * it out of ram_seg + */ + _stack = CONFIG_STACK_BOTTOM; + _estack = CONFIG_STACK_TOP; + + /* Discard the sections we don't need/want */ + + /DISCARD/ : { + *(.comment) + *(.note) + *(.note.*) + } +} diff --git a/src/arch/arm/romstage.ld b/src/arch/arm/romstage.ld new file mode 100644 index 0000000..65b133a --- /dev/null +++ b/src/arch/arm/romstage.ld @@ -0,0 +1,109 @@ +/* + * Memory map: + * + * CONFIG_ROMSTAGE_BASE : text segment + * : rodata segment + * : data segment + * : bss segment + * : stack + * : heap + */ +/* + * Bootstrap code for the STPC Consumer + * Copyright (c) 1999 by Net Insight AB. All Rights Reserved. + */ + +/* + * Written by Johan Rydberg, based on work by Daniel Kahlin. + * Rewritten by Eric Biederman + * 2005.12 yhlu add ramstage cross the vga font buffer handling + */ + +/* We use ELF as output format. So that we can debug the code in some form. */ + +/* We use ELF as output format. So that we can debug the code in some form. */ +OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +INCLUDE ldoptions + +ENTRY(stage_entry) + +PHDRS +{ + to_load PT_LOAD; +} + +SECTIONS +{ + /* TODO make this a configurable option (per chipset). */ + . = CONFIG_ROMSTAGE_BASE; + + .romtext . : { + _rom = .; + _start = .; + *(.text.stage_entry.arm); + *(.text.startup); + *(.text); + } : to_load + + .romdata . : { + *(.rodata); + *(.machine_param); + *(.data); + . = ALIGN(16); + _car_migrate_start = .; + *(.car.migrate); + _car_migrate_end = .; + . = ALIGN(16); + _erom = .; + } + + /* bss does not contain data, it is just a space that should be zero + * initialized on startup. (typically uninitialized global variables) + * crt0.S fills between _bss and _ebss with zeroes. + */ + .bss . : { + . = ALIGN(8); + _bss = .; + *(.bss) + *(.sbss) + *(COMMON) + } + + _ebss = .; + + .car.data . : { + . = ALIGN(8); + _car_data_start = .; + *(.car.global_data); + . = ALIGN(8); + /* The cbmem_console section comes last to take advantage of + * a zero-sized array to hold the memconsole contents that + * grows to a bound of CONFIG_CONSOLE_CAR_BUFFER_SIZE. However, + * collisions within the cache-as-ram region cannot be + * statically checked because the cache-as-ram region usage is + * cpu/chipset dependent. */ + *(.car.cbmem_console); + _car_data_end = .; + } + + _end = .; + + /* TODO: check if we are running out of SRAM. Below check is not good + * enough though because SRAM has different size on different CPUs + * and not all SRAM is available to the romstage. On Exynos, some is + * used for BL1, the bootblock and the stack. + * + * _bogus = ASSERT((_end - _start + EXPECTED_CBMEM_CONSOLE_SIZE <= \ + * 0x54000), "SRAM area is too full"); + */ + + /* Discard the sections we don't need/want */ + /DISCARD/ : { + *(.comment) + *(.note) + *(.comment.*) + *(.note.*) + *(.eh_frame); + } +} diff --git a/src/arch/arm/stages.c b/src/arch/arm/stages.c new file mode 100644 index 0000000..38d1b19 --- /dev/null +++ b/src/arch/arm/stages.c @@ -0,0 +1,61 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2012 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* + * This file contains entry/exit functions for each stage during coreboot + * execution (bootblock entry and ramstage exit will depend on external + * loading. + * + * Unlike other files, this one should be compiled with a -m option to + * specify a pre-determined instruction set. This is to ensure consistency + * in the CPU operating mode (ARM or Thumb) when hand-off between stages + * occurs. + * + * Entry points must be placed at the location the previous stage jumps + * to (the lowest address in the stage image). This is done by giving + * stage_entry() its own section in .text and placing it first in the + * linker script. + */ + +#include <arch/stages.h> +#include <arch/cache.h> + +void stage_entry(void) +{ + main(); +} + +/* we had marked 'doit' as 'noreturn'. + * There is no apparent harm in leaving it as something we can return from, and in the one + * case where we call a payload, the payload is allowed to return. + * Hence, leave it as something we can return from. + */ +void stage_exit(void *addr) +{ + void (*doit)(void) = addr; + /* make sure any code we installed is written to memory. Not all ARM have + * unified caches. + */ + dcache_clean_all(); + /* Because most stages copy code to memory, it's a safe and hygienic thing + * to flush the icache here. + */ + icache_invalidate_all(); + doit(); +} diff --git a/src/arch/arm/tables.c b/src/arch/arm/tables.c new file mode 100644 index 0000000..20c5a9f --- /dev/null +++ b/src/arch/arm/tables.c @@ -0,0 +1,77 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2003 Eric Biederman + * Copyright (C) 2005 Steve Magnani + * Copyright (C) 2008-2009 coresystems GmbH + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/console.h> +#include <cpu/cpu.h> +#include <boot/tables.h> +#include <boot/coreboot_tables.h> +#include <string.h> +#include <cbmem.h> +#include <lib.h> + +#define MAX_COREBOOT_TABLE_SIZE (8 * 1024) + +#if !CONFIG_DYNAMIC_CBMEM +void __attribute__((weak)) get_cbmem_table(uint64_t *base, uint64_t *size) +{ + printk(BIOS_WARNING, "WARNING: you need to define get_cbmem_table for your board\n"); + *base = 0; + *size = 0; +} +#endif + +void cbmem_arch_init(void) +{ +} + +void cbmem_fail_resume(void) +{ +} + +void write_tables(void) +{ + unsigned long table_pointer, new_table_pointer; + + post_code(0x9d); + + table_pointer = (unsigned long)cbmem_add(CBMEM_ID_CBTABLE, + MAX_COREBOOT_TABLE_SIZE); + if (!table_pointer) { + printk(BIOS_ERR, "Could not add CBMEM for coreboot table.\n"); + return; + } + + new_table_pointer = write_coreboot_table(0UL, 0UL, + table_pointer, table_pointer); + + if (new_table_pointer > (table_pointer + MAX_COREBOOT_TABLE_SIZE)) { + printk(BIOS_ERR, "coreboot table didn't fit (%lx/%x bytes)\n", + new_table_pointer - table_pointer, MAX_COREBOOT_TABLE_SIZE); + } + + printk(BIOS_DEBUG, "coreboot table: %ld bytes.\n", + new_table_pointer - table_pointer); + + post_code(0x9e); + + /* Print CBMEM sections */ + cbmem_list(); +} diff --git a/src/arch/armv7/Kconfig b/src/arch/armv7/Kconfig deleted file mode 100644 index e272474..0000000 --- a/src/arch/armv7/Kconfig +++ /dev/null @@ -1,26 +0,0 @@ -config ARCH_BOOTBLOCK_ARMV7 - bool - default n - select ARCH_ARMV7 - -config ARCH_ROMSTAGE_ARMV7 - bool - default n - -config ARCH_RAMSTAGE_ARMV7 - bool - default n - -# If a custom bootblock is necessary, this option should be "select"-ed by -# the thing that needs it, probably the CPU. -config ARM_BOOTBLOCK_CUSTOM - bool - default n - -config CPU_HAS_BOOTBLOCK_INIT - bool - default n - -config MAINBOARD_HAS_BOOTBLOCK_INIT - bool - default n \ No newline at end of file diff --git a/src/arch/armv7/Makefile.inc b/src/arch/armv7/Makefile.inc deleted file mode 100644 index 2022f20..0000000 --- a/src/arch/armv7/Makefile.inc +++ /dev/null @@ -1,142 +0,0 @@ -################################################################################ -## -## This file is part of the coreboot project. -## -## Copyright (C) 2012 The ChromiumOS Authors -## Copyright (C) 2012 Alexandru Gagniuc mr.nuke.me@gmail.com -## Copyright (C) 2009-2010 coresystems GmbH -## Copyright (C) 2009 Ronald G. Minnich -## -## This program is free software; you can redistribute it and/or modify -## it under the terms of the GNU General Public License as published by -## the Free Software Foundation; version 2 of the License. -## -## This program is distributed in the hope that it will be useful, -## but WITHOUT ANY WARRANTY; without even the implied warranty of -## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -## GNU General Public License for more details. -## -## You should have received a copy of the GNU General Public License -## along with this program; if not, write to the Free Software -## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -## -############################################################################### -# Take care of subdirectories -############################################################################### -subdirs-y += boot/ -subdirs-y += lib/ - -############################################################################### -# ARM specific options -############################################################################### - -ifeq ($(CONFIG_ARCH_ROMSTAGE_ARMV7),y) -CBFSTOOL_PRE1_OPTS = -m armv7 -b $(CONFIG_BOOTBLOCK_ROM_OFFSET) -H $(CONFIG_CBFS_HEADER_ROM_OFFSET) -o $(CONFIG_CBFS_ROM_OFFSET) -CBFSTOOL_PRE_OPTS = -b 0 -endif - -ifeq ($(CONFIG_ARCH_ARMV7),y) -stages_c = $(src)/arch/armv7/stages.c -stages_o = $(obj)/arch/armv7/stages.o - -$(stages_o): $(stages_c) $(obj)/config.h - @printf " CC $(subst $(obj)/,,$(@))\n" - $(CC_armv7) -I. $(CPPFLAGS_armv7) -c -o $@ $< -marm - -endif # CONFIG_ARCH_ARMV7 - -############################################################################### -# bootblock -############################################################################### - -ifeq ($(CONFIG_ARCH_BOOTBLOCK_ARMV7),y) - -ifneq ($(CONFIG_ARM_BOOTBLOCK_CUSTOM),y) -bootblock-y += bootblock.S -bootblock-$(CONFIG_BOOTBLOCK_SIMPLE) += bootblock_simple.c -endif -bootblock-y += id.S -$(obj)/arch/arm/id.bootblock.o: $(obj)/build.h - -bootblock-y += stages.c -bootblock-y += cache.c -bootblock-y += eabi_compat.c -bootblock-y += memset.S -bootblock-y += memcpy.S -bootblock-y += memmove.S -bootblock-y += mmu.c - -$(objcbfs)/bootblock.debug: $(src)/arch/armv7/bootblock.ld $(obj)/ldoptions $$(bootblock-objs) $(obj)/config.h - @printf " LINK $(subst $(obj)/,,$(@))\n" -ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y) - $(LD_bootblock) -m armelf_linux_eabi -static -o $@ -L$(obj) $< -T $(src)/arch/armv7/bootblock.ld -else - $(CC_bootblock) $(CFLAGS_bootblock) -nostartfiles -include $(obj)/config.h -static -o $@ -L$(obj) -T $(src)/arch/armv7/bootblock.ld -Wl,--start-group $(bootblock-objs) $(LIBGCC_FILE_NAME_bootblock) -Wl,--end-group -endif - -endif # CONFIG_ARCH_BOOTBLOCK_ARMV7 - -############################################################################### -# romstage -############################################################################### - -ifeq ($(CONFIG_ARCH_ROMSTAGE_ARMV7),y) - -romstage-y += stages.c -romstage-y += cache.c -romstage-y += div0.c -romstage-y += eabi_compat.c -romstage-y += memset.S -romstage-y += memcpy.S -romstage-y += memmove.S - -VBOOT_STUB_DEPS += $(obj)/arch/armv7/eabi_compat.rmodules_arm.o - -$(objcbfs)/romstage.debug: $$(romstage-objs) $(src)/arch/armv7/romstage.ld $(obj)/ldoptions - @printf " LINK $(subst $(obj)/,,$(@))\n" -ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y) - $(LD_romstage) -nostdlib -nostartfiles -static -o $@ -L$(obj) $(romstage-objs) -T $(src)/arch/armv7/romstage.ld -else - $(CC_romstage) $(CFLAGS_romstage) -nostartfiles -static -o $@ -L$(obj) -T $(src)/arch/armv7/romstage.ld -Wl,--start-group $(romstage-objs) $(LIBGCC_FILE_NAME_romstage) -Wl,--end-group -endif - -endif # CONFIG_ARCH_ROMSTAGE_ARMV7 - -############################################################################### -# ramstage -############################################################################### - -ifeq ($(CONFIG_ARCH_RAMSTAGE_ARMV7),y) - -ramstage-y += stages.c -ramstage-y += exception.c -ramstage-y += exception_asm.S -ramstage-y += div0.c -ramstage-y += cache.c -ramstage-y += cpu.c -ramstage-y += mmu.c -ramstage-y += eabi_compat.c -ramstage-y += boot.c -ramstage-y += tables.c -ramstage-y += memset.S -ramstage-y += memcpy.S -ramstage-y += memmove.S -ramstage-srcs += $(wildcard src/mainboard/$(MAINBOARDDIR)/mainboard.c) - -$(objcbfs)/ramstage.debug: $$(ramstage-objs) $(LIBGCC_FILE_NAME_ramstage) $(src)/arch/armv7/ramstage.ld $(obj)/ldoptions - @printf " CC $(subst $(obj)/,,$(@))\n" -ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y) - $(LD_ramstage) -m armelf_linux_eabi -o $@ -L$(obj) $< -T $(src)/arch/armv7/ramstage.ld -else - $(CC_ramstage) $(CFLAGS_ramstage) -nostdlib -nostartfiles -static -o $@ -L$(obj) -Wl,--start-group $(ramstage-objs) $(LIBGCC_FILE_NAME_ramstage) -Wl,--end-group -T $(src)/arch/armv7/ramstage.ld -endif - -$(objgenerated)/ramstage.o: $(stages_o) $$(ramstage-objs) $(LIBGCC_FILE_NAME_ramstage) - @printf " CC $(subst $(obj)/,,$(@))\n" -ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y) - $(LD_ramstage) -m -m armelf_linux_eabi -r -o $@ --wrap __divdi3 --wrap __udivdi3 --wrap __moddi3 --wrap __umoddi3 --wrap __uidiv --start-group $(ramstage-objs) $(LIBGCC_FILE_NAME_ramstage) --end-group -else - $(CC_ramstage) $(CFLAGS_ramstage) $(CPPFLAGS_ramstage) -nostdlib -r -o $@ -Wl,--start-group $(stages_o) $(ramstage-objs) $(LIBGCC_FILE_NAME_ramstage) -Wl,--end-group -endif - -endif # CONFIG_ARCH_RAMSTAGE_ARMV7 diff --git a/src/arch/armv7/boot.c b/src/arch/armv7/boot.c deleted file mode 100644 index d872a79..0000000 --- a/src/arch/armv7/boot.c +++ /dev/null @@ -1,28 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2013 Google Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <console/console.h> -#include <arch/stages.h> -#include <payload_loader.h> - -void arch_payload_run(const struct payload *payload) -{ - printk(BIOS_SPEW, "entry = %p\n", payload->entry); - stage_exit(payload->entry); -} diff --git a/src/arch/armv7/bootblock.S b/src/arch/armv7/bootblock.S deleted file mode 100644 index b28a787..0000000 --- a/src/arch/armv7/bootblock.S +++ /dev/null @@ -1,113 +0,0 @@ -/* - * Early initialization code for ARMv7 architecture. - * - * This file is based off of the OMAP3530/ARM Cortex start.S file from Das - * U-Boot, which itself got the file from armboot. - * - * Copyright (c) 2004 Texas Instruments r-woodruff2@ti.com - * Copyright (c) 2001 Marius Gröger mag@sysgo.de - * Copyright (c) 2002 Alex Züpke azu@sysgo.de - * Copyright (c) 2002 Gary Jennejohn garyj@denx.de - * Copyright (c) 2003 Richard Woodruff r-woodruff2@ti.com - * Copyright (c) 2003 Kshitij kshitij@ti.com - * Copyright (c) 2006-2008 Syed Mohammed Khasim x0khasim@ti.com - * Copyright (c) 2013 The Chromium OS Authors - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; version 2 of - * the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -.section ".start", "a", %progbits -.globl _start -_start: b reset - .balignl 16,0xdeadbeef - -_cbfs_master_header: - /* The CBFS master header is inserted by cbfstool at the first - * aligned offset after the above anchor string is found. - * Hence, we leave some space for it. - */ - .skip 128 @ Assumes 64-byte alignment - -reset: - /* - * Set the cpu to System mode with IRQ and FIQ disabled. Prefetch/Data - * aborts may happen early and crash before the abort handlers are - * installed, but at least the problem will show up near the code that - * causes it. - */ - msr cpsr_cxf, #0xdf - - /* - * From Cortex-A Series Programmer's Guide: - * Only CPU 0 performs initialization. Other CPUs go into WFI - * to do this, first work out which CPU this is - * this code typically is run before any other initialization step - */ - mrc p15, 0, r1, c0, c0, 5 @ Read Multiprocessor Affinity Register - and r1, r1, #0x3 @ Extract CPU ID bits - cmp r1, #0 - bne wait_for_interrupt @ If this is not core0, wait - - /* - * Initialize the stack to a known value. This is used to check for - * stack overflow later in the boot process. - */ - ldr r0, .Stack - ldr r1, .Stack_size - sub r0, r0, r1 - ldr r1, .Stack - ldr r2, =0xdeadbeef -init_stack_loop: - str r2, [r0] - add r0, #4 - cmp r0, r1 - bne init_stack_loop - -/* Set stackpointer in internal RAM to call board_init_f */ -call_bootblock: - ldr sp, .Stack /* Set up stack pointer */ - ldr r0,=0x00000000 - /* - * The current design of cpu_info places the - * struct at the top of the stack. The number of - * words pushed must be at least as large as that - * struct. - */ - push {r0-r2} - bic sp, sp, #7 /* 8-byte alignment for ABI compliance */ - /* - * Use "bl" instead of "b" even though we do not intend to return. - * "bl" gets compiled to "blx" if we're transitioning from ARM to - * Thumb. However, "b" will not and GCC may attempt to create a - * wrapper which is currently broken. - */ - bl main - -wait_for_interrupt: - wfi - mov pc, lr @ back to my caller - -/* we do it this way because it's a 32-bit constant and - * in some cases too far away to be loaded as just an offset - * from IP - */ -.align 2 -.Stack: - .word CONFIG_STACK_TOP -.align 2 -/* create this size the same way we do in coreboot_ram.ld: top-bottom */ -.Stack_size: - .word CONFIG_STACK_TOP - CONFIG_STACK_BOTTOM diff --git a/src/arch/armv7/bootblock.ld b/src/arch/armv7/bootblock.ld deleted file mode 100644 index 706f0a2..0000000 --- a/src/arch/armv7/bootblock.ld +++ /dev/null @@ -1,57 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2006 Advanced Micro Devices, Inc. - * Copyright (C) 2008-2010 coresystems GmbH - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/* We use ELF as output format. So that we can debug the code in some form. */ -OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") -OUTPUT_ARCH(arm) -INCLUDE ldoptions - -PHDRS -{ - to_load PT_LOAD; -} - -TARGET(binary) -SECTIONS -{ - ROMLOC = CONFIG_BOOTBLOCK_BASE; - - /* This section might be better named .setup */ - .rom ROMLOC : { - _rom = .; - *(.start); - *(.id); - *(.text); - *(.text.*); - *(.rom.text); - *(.rom.data); - *(.rom.data.*); - *(.rodata.*); - _erom = .; - } : to_load = 0xff - - /DISCARD/ : { - *(.comment) - *(.note) - *(.comment.*) - *(.note.*) - *(.ARM.*) - } -} diff --git a/src/arch/armv7/bootblock_simple.c b/src/arch/armv7/bootblock_simple.c deleted file mode 100644 index bcd83b8..0000000 --- a/src/arch/armv7/bootblock_simple.c +++ /dev/null @@ -1,63 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2010 Google Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; version 2 of - * the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, - * MA 02110-1301 USA - */ - -#include <arch/cache.h> -#include <arch/hlt.h> -#include <arch/stages.h> -#include <bootblock_common.h> -#include <cbfs.h> -#include <console/console.h> -#include <smp/node.h> - -void main(void) -{ - const char *stage_name = "fallback/romstage"; - void *entry; - uint32_t sctlr; - - /* Globally disable MMU, caches, and branch prediction (these should - * be disabled by default on reset) */ - sctlr = read_sctlr(); - sctlr &= ~(SCTLR_M | SCTLR_C | SCTLR_Z | SCTLR_I); - write_sctlr(sctlr); - - armv7_invalidate_caches(); - - /* - * Re-enable icache and branch prediction. MMU and dcache will be - * set up later. - */ - sctlr = read_sctlr(); - sctlr |= SCTLR_Z | SCTLR_I; - write_sctlr(sctlr); - - bootblock_cpu_init(); - bootblock_mainboard_init(); - -#if CONFIG_BOOTBLOCK_CONSOLE - console_init(); -#endif - - entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, stage_name); - - if (entry) stage_exit(entry); - hlt(); -} diff --git a/src/arch/armv7/cache.c b/src/arch/armv7/cache.c deleted file mode 100644 index 1f466ce..0000000 --- a/src/arch/armv7/cache.c +++ /dev/null @@ -1,328 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2013 Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * cache.c: Cache maintenance routines for ARMv7-A and ARMv7-R - * - * Reference: ARM Architecture Reference Manual, ARMv7-A and ARMv7-R edition - */ - -#include <stdint.h> - -#include <arch/cache.h> - -#define bitmask(high, low) ((1UL << (high)) + \ - ((1UL << (high)) - 1) - ((1UL << (low)) - 1)) - -/* Basic log2() implementation. Note: log2(0) is 0 for our purposes. */ -/* FIXME: src/include/lib.h is difficult to work with due to romcc */ -static unsigned long log2(unsigned long u) -{ - int i = 0; - - while (u >>= 1) - i++; - - return i; -} - -void tlb_invalidate_all(void) -{ - /* - * FIXME: ARMv7 Architecture Ref. Manual claims that the distinction - * instruction vs. data TLBs is deprecated in ARMv7, however this does - * not seem to be the case as of Cortex-A15. - */ - tlbiall(); - dtlbiall(); - itlbiall(); - isb(); - dsb(); -} - -void icache_invalidate_all(void) -{ - /* - * icache can be entirely invalidated with one operation. - * Note: If branch predictors are architecturally-visible, ICIALLU - * also performs a BPIALL operation (B2-1283 in arch manual) - */ - iciallu(); - isb(); -} - -enum dcache_op { - OP_DCCSW, - OP_DCCISW, - OP_DCISW, - OP_DCCIMVAC, - OP_DCCMVAC, - OP_DCIMVAC, -}; - -/* - * Do a dcache operation on entire cache by set/way. This is done for - * portability because mapping of memory address to cache location is - * implementation defined (See note on "Requirements for operations by - * set/way" in arch ref. manual). - */ -static void dcache_op_set_way(enum dcache_op op) -{ - uint32_t ccsidr; - unsigned int associativity, num_sets, linesize_bytes; - unsigned int set, way; - unsigned int level; - - level = (read_csselr() >> 1) & 0x7; - - /* - * dcache must be invalidated by set/way for portability since virtual - * memory mapping is system-defined. The number of sets and - * associativity is given by CCSIDR. We'll use DCISW to invalidate the - * dcache. - */ - ccsidr = read_ccsidr(); - - /* FIXME: rounding up required here? */ - num_sets = ((ccsidr & bitmask(27, 13)) >> 13) + 1; - associativity = ((ccsidr & bitmask(12, 3)) >> 3) + 1; - /* FIXME: do we need to use CTR.DminLine here? */ - linesize_bytes = (1 << ((ccsidr & 0x7) + 2)) * 4; - - dsb(); - - /* - * Set/way operations require an interesting bit packing. See section - * B4-35 in the ARMv7 Architecture Reference Manual: - * - * A: Log2(associativity) - * B: L+S - * L: Log2(linesize) - * S: Log2(num_sets) - * - * The bits are packed as follows: - * 31 31-A B B-1 L L-1 4 3 1 0 - * |---|-------------|--------|-------|-----|-| - * |Way| zeros | Set | zeros |level|0| - * |---|-------------|--------|-------|-----|-| - */ - for (way = 0; way < associativity; way++) { - for (set = 0; set < num_sets; set++) { - uint32_t val = 0; - val |= way << (32 - log2(associativity)); - val |= set << log2(linesize_bytes); - val |= level << 1; - switch(op) { - case OP_DCCISW: - dccisw(val); - break; - case OP_DCISW: - dcisw(val); - break; - case OP_DCCSW: - dccsw(val); - break; - default: - break; - } - } - } - isb(); -} - -static void dcache_foreach(enum dcache_op op) -{ - uint32_t clidr; - int level; - - clidr = read_clidr(); - for (level = 0; level < 7; level++) { - unsigned int ctype = (clidr >> (level * 3)) & 0x7; - uint32_t csselr; - - switch(ctype) { - case 0x2: - case 0x3: - case 0x4: - csselr = level << 1; - write_csselr(csselr); - dcache_op_set_way(op); - break; - default: - /* no cache, icache only, or reserved */ - break; - } - } -} - -void dcache_clean_all(void) -{ - dcache_foreach(OP_DCCSW); -} - -void dcache_clean_invalidate_all(void) -{ - dcache_foreach(OP_DCCISW); -} - -void dcache_invalidate_all(void) -{ - dcache_foreach(OP_DCISW); -} - -static unsigned int line_bytes(void) -{ - uint32_t ccsidr; - unsigned int size; - - ccsidr = read_ccsidr(); - /* [2:0] - Indicates (Log2(number of words in cache line)) - 2 */ - size = 1 << ((ccsidr & 0x7) + 2); /* words per line */ - size *= sizeof(unsigned int); /* bytes per line */ - - return size; -} - -/* - * Do a dcache operation by modified virtual address. This is useful for - * maintaining coherency in drivers which do DMA transfers and only need to - * perform cache maintenance on a particular memory range rather than the - * entire cache. - */ -static void dcache_op_mva(void const *addr, size_t len, enum dcache_op op) -{ - unsigned long line, linesize; - - linesize = line_bytes(); - line = (uint32_t)addr & ~(linesize - 1); - - dsb(); - while ((void *)line < addr + len) { - switch(op) { - case OP_DCCIMVAC: - dccimvac(line); - break; - case OP_DCCMVAC: - dccmvac(line); - break; - case OP_DCIMVAC: - dcimvac(line); - break; - default: - break; - } - line += linesize; - } - isb(); -} - -void dcache_clean_by_mva(void const *addr, size_t len) -{ - dcache_op_mva(addr, len, OP_DCCMVAC); -} - -void dcache_clean_invalidate_by_mva(void const *addr, size_t len) -{ - dcache_op_mva(addr, len, OP_DCCIMVAC); -} - -void dcache_invalidate_by_mva(void const *addr, size_t len) -{ - dcache_op_mva(addr, len, OP_DCIMVAC); -} - -void dcache_mmu_disable(void) -{ - uint32_t sctlr; - - dcache_clean_invalidate_all(); - sctlr = read_sctlr(); - sctlr &= ~(SCTLR_C | SCTLR_M); - write_sctlr(sctlr); -} - - -void dcache_mmu_enable(void) -{ - uint32_t sctlr; - - sctlr = read_sctlr(); - dcache_clean_invalidate_all(); - sctlr |= SCTLR_C | SCTLR_M; - write_sctlr(sctlr); -} - -void armv7_invalidate_caches(void) -{ - uint32_t clidr; - int level; - - /* Invalidate branch predictor */ - bpiall(); - - /* Iterate thru each cache identified in CLIDR and invalidate */ - clidr = read_clidr(); - for (level = 0; level < 7; level++) { - unsigned int ctype = (clidr >> (level * 3)) & 0x7; - uint32_t csselr; - - switch(ctype) { - case 0x0: - /* no cache */ - break; - case 0x1: - /* icache only */ - csselr = (level << 1) | 1; - write_csselr(csselr); - icache_invalidate_all(); - break; - case 0x2: - case 0x4: - /* dcache only or unified cache */ - csselr = level << 1; - write_csselr(csselr); - dcache_invalidate_all(); - break; - case 0x3: - /* separate icache and dcache */ - csselr = (level << 1) | 1; - write_csselr(csselr); - icache_invalidate_all(); - - csselr = level << 1; - write_csselr(csselr); - dcache_invalidate_all(); - break; - default: - /* reserved */ - break; - } - } - - /* Invalidate TLB */ - tlb_invalidate_all(); -} diff --git a/src/arch/armv7/cpu.c b/src/arch/armv7/cpu.c deleted file mode 100644 index f90c759..0000000 --- a/src/arch/armv7/cpu.c +++ /dev/null @@ -1,42 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2013 Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - */ -#include <stdlib.h> -#include <arch/cpu.h> - -/* Return the cpu struct which is at the high memory address of the stack. - */ -struct cpu_info *cpu_info(void) -{ - uintptr_t addr = ALIGN((uintptr_t)__builtin_frame_address(0), - CONFIG_STACK_SIZE); - addr -= sizeof(struct cpu_info); - return (void *)addr; -} - diff --git a/src/arch/armv7/div0.c b/src/arch/armv7/div0.c deleted file mode 100644 index ab06ad3..0000000 --- a/src/arch/armv7/div0.c +++ /dev/null @@ -1,33 +0,0 @@ -/* - * (C) Copyright 2002 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <console/console.h> - -void __div0(void); // called from asm so no need for a prototype in a header - -/* Replacement (=dummy) for GNU/Linux division-by zero handler */ -/* recursion is ok here because we have no formats ... */ -void __div0 (void) -{ - printk(BIOS_EMERG, "DIVIDE BY ZERO! continuing ... \n"); -} diff --git a/src/arch/armv7/eabi_compat.c b/src/arch/armv7/eabi_compat.c deleted file mode 100644 index 0c79cd5..0000000 --- a/src/arch/armv7/eabi_compat.c +++ /dev/null @@ -1,31 +0,0 @@ -/* - * Utility functions needed for (some) EABI conformant tool chains. - * - * (C) Copyright 2009 Wolfgang Denk wd@denx.de - * - * This program is Free Software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - */ - -#include <console/console.h> - -/* FIXME(dhendrix): prototypes added for assembler */ -int raise (int signum) __attribute__((used)); -int raise (int signum) -{ - printk(BIOS_CRIT, "raise: Signal # %d caught\n", signum); - return 0; -} - -/* Dummy function to avoid linker complaints */ -void __aeabi_unwind_cpp_pr0(void) __attribute__((used)); -void __aeabi_unwind_cpp_pr0(void) -{ -}; - -void __aeabi_unwind_cpp_pr1(void) __attribute__((used)); -void __aeabi_unwind_cpp_pr1(void) -{ -}; diff --git a/src/arch/armv7/exception.c b/src/arch/armv7/exception.c deleted file mode 100644 index 3b32e8b..0000000 --- a/src/arch/armv7/exception.c +++ /dev/null @@ -1,180 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright 2013 Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <stdint.h> -#include <types.h> -#include <arch/exception.h> -#include <console/console.h> - -void exception_test(void); - -static int test_abort; - -void exception_undefined_instruction(uint32_t *); -void exception_software_interrupt(uint32_t *); -void exception_prefetch_abort(uint32_t *); -void exception_data_abort(uint32_t *); -void exception_not_used(uint32_t *); -void exception_irq(uint32_t *); -void exception_fiq(uint32_t *); - -static void dump_stack(uintptr_t addr, size_t bytes) -{ - int i, j; - const int line = 8; - uint32_t *ptr = (uint32_t *)(addr & ~(line * sizeof(*ptr) - 1)); - - printk(BIOS_ERR, "Dumping stack:\n"); - for (i = bytes / sizeof(*ptr); i >= 0; i -= line) { - printk(BIOS_ERR, "%p: ", ptr + i); - for (j = i; j < i + line; j++) - printk(BIOS_ERR, "%08x ", *(ptr + j)); - printk(BIOS_ERR, "\n"); - } -} - -static void print_regs(uint32_t *regs) -{ - int i; - - for (i = 0; i < 16; i++) { - if (i == 15) - printk(BIOS_ERR, "PC"); - else if (i == 14) - printk(BIOS_ERR, "LR"); - else if (i == 13) - printk(BIOS_ERR, "SP"); - else if (i == 12) - printk(BIOS_ERR, "IP"); - else - printk(BIOS_ERR, "R%d", i); - printk(BIOS_ERR, " = 0x%08x\n", regs[i]); - } -} - -void exception_undefined_instruction(uint32_t *regs) -{ - printk(BIOS_ERR, "exception _undefined_instruction\n"); - print_regs(regs); - dump_stack(regs[13], 512); - die("exception"); -} - -void exception_software_interrupt(uint32_t *regs) -{ - printk(BIOS_ERR, "exception _software_interrupt\n"); - print_regs(regs); - dump_stack(regs[13], 512); - die("exception"); -} - -void exception_prefetch_abort(uint32_t *regs) -{ - printk(BIOS_ERR, "exception _prefetch_abort\n"); - print_regs(regs); - dump_stack(regs[13], 512); - die("exception"); -} - -void exception_data_abort(uint32_t *regs) -{ - if (test_abort) { - regs[15] = regs[0]; - return; - } else { - printk(BIOS_ERR, "exception _data_abort\n"); - print_regs(regs); - dump_stack(regs[13], 512); - } - die("exception"); -} - -void exception_not_used(uint32_t *regs) -{ - printk(BIOS_ERR, "exception _not_used\n"); - print_regs(regs); - dump_stack(regs[13], 512); - die("exception"); -} - -void exception_irq(uint32_t *regs) -{ - printk(BIOS_ERR, "exception _irq\n"); - print_regs(regs); - dump_stack(regs[13], 512); - die("exception"); -} - -void exception_fiq(uint32_t *regs) -{ - printk(BIOS_ERR, "exception _fiq\n"); - print_regs(regs); - dump_stack(regs[13], 512); - die("exception"); -} - -static inline uint32_t get_sctlr(void) -{ - uint32_t val; - asm("mrc p15, 0, %0, c1, c0, 0" : "=r" (val)); - return val; -} - -static inline void set_sctlr(uint32_t val) -{ - asm volatile("mcr p15, 0, %0, c1, c0, 0" :: "r" (val)); - asm volatile("" ::: "memory"); -} - -void exception_init(void) -{ - static const uint32_t sctlr_te = (0x1 << 30); - static const uint32_t sctlr_v = (0x1 << 13); - static const uint32_t sctlr_a = (0x1 << 1); - - uint32_t sctlr = get_sctlr(); - /* Handle exceptions in ARM mode. */ - sctlr &= ~sctlr_te; - /* Set V=0 in SCTLR so VBAR points to the exception vector table. */ - sctlr &= ~sctlr_v; - /* Enforce alignment temporarily. */ - set_sctlr(sctlr | sctlr_a); - - extern uint32_t exception_table[]; - set_vbar((uintptr_t)exception_table); - - test_abort = 1; - printk(BIOS_ERR, "Testing exceptions\n"); - exception_test(); - test_abort = 0; - printk(BIOS_ERR, "Testing exceptions: DONE\n"); - - /* Restore original alignment settings. */ - set_sctlr(sctlr); -} diff --git a/src/arch/armv7/exception_asm.S b/src/arch/armv7/exception_asm.S deleted file mode 100644 index 163fdbd..0000000 --- a/src/arch/armv7/exception_asm.S +++ /dev/null @@ -1,116 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright 2013 Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -exception_stack: - .align 5 - .skip 0x2000, 0xa5 -exception_stack_end: - .word exception_stack_end - -exception_handler: - .word 0 - - - .align 6 - .arm - .global exception_table -exception_table: - b 1f - b 2f - b 3f - b 4f - b 5f - b 6f - b 7f - b 8f - -1: - ldr sp, _not_used - b exception_common -2: - ldr sp, _undefined_instruction - b exception_common -3: - ldr sp, _software_interrupt - b exception_common -4: - ldr sp, _prefetch_abort - b exception_common -5: - ldr sp, _data_abort - b exception_common -6: - ldr sp, _not_used - b exception_common -7: - ldr sp, _irq - b exception_common -8: - ldr sp, _fiq - b exception_common - -exception_common: - str sp, exception_handler - ldr sp, exception_stack_end - push { lr } - stmfd sp, { sp, lr }^ - sub sp, sp, $8 - push { r0 - r12 } - mov r0, sp - mov lr, pc - ldr pc, exception_handler - pop { r0 - r12 } - add sp, sp, $8 - ldmfd sp!, { pc }^ - - -_undefined_instruction: .word exception_undefined_instruction -_software_interrupt: .word exception_software_interrupt -_prefetch_abort: .word exception_prefetch_abort -_data_abort: .word exception_data_abort -_not_used: .word exception_not_used -_irq: .word exception_irq -_fiq: .word exception_fiq - - .thumb - .global set_vbar - .thumb_func -set_vbar: - mcr p15, 0, r0, c12, c0, 0 - bx lr - - .global exception_test - .thumb_func -exception_test: - mov r1, $1 - mov r0, pc - add r0, $3 - ldr r1, [r1] - bx lr - diff --git a/src/arch/armv7/id.S b/src/arch/armv7/id.S deleted file mode 100644 index a588f1e..0000000 --- a/src/arch/armv7/id.S +++ /dev/null @@ -1,20 +0,0 @@ -#include <build.h> - - .section ".id", "a", %progbits - - .globl __id_start -__id_start: -ver: - .asciz COREBOOT_VERSION -vendor: - .asciz CONFIG_MAINBOARD_VENDOR -part: - .asciz CONFIG_MAINBOARD_PART_NUMBER -.long __id_end - ver /* Reverse offset to the vendor id */ -.long __id_end - vendor /* Reverse offset to the vendor id */ -.long __id_end - part /* Reverse offset to the part number */ -.long CONFIG_ROM_SIZE /* Size of this romimage */ - .globl __id_end - -__id_end: -.previous diff --git a/src/arch/armv7/include/arch/boot/boot.h b/src/arch/armv7/include/arch/boot/boot.h deleted file mode 100644 index 08651cd..0000000 --- a/src/arch/armv7/include/arch/boot/boot.h +++ /dev/null @@ -1,8 +0,0 @@ -#ifndef ASM_ARM_BOOT_H -#define ASM_ARM_BOOT_H - -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2LSB -#define ELF_ARCH EM_ARM - -#endif /* ASM_ARM_BOOT_H */ diff --git a/src/arch/armv7/include/arch/byteorder.h b/src/arch/armv7/include/arch/byteorder.h deleted file mode 100644 index 8dc069f..0000000 --- a/src/arch/armv7/include/arch/byteorder.h +++ /dev/null @@ -1,27 +0,0 @@ -#ifndef _BYTEORDER_H -#define _BYTEORDER_H - -#define __LITTLE_ENDIAN 1234 - -#include <stdint.h> -#include <swab.h> - -#define cpu_to_le64(x) ((uint64_t)(x)) -#define le64_to_cpu(x) ((uint64_t)(x)) -#define cpu_to_le32(x) ((uint32_t)(x)) -#define le32_to_cpu(x) ((uint32_t)(x)) -#define cpu_to_le16(x) ((uint16_t)(x)) -#define le16_to_cpu(x) ((uint16_t)(x)) -#define cpu_to_be64(x) swab64(x) -#define be64_to_cpu(x) swab64(x) -#define cpu_to_be32(x) swab32((x)) -#define be32_to_cpu(x) swab32((x)) -#define cpu_to_be16(x) swab16((x)) -#define be16_to_cpu(x) swab16((x)) - -#define ntohll(x) be64_to_cpu(x) -#define htonll(x) cpu_to_be64(x) -#define ntohl(x) be32_to_cpu(x) -#define htonl(x) cpu_to_be32(x) - -#endif /* _BYTEORDER_H */ diff --git a/src/arch/armv7/include/arch/cache.h b/src/arch/armv7/include/arch/cache.h deleted file mode 100644 index 1cd9958..0000000 --- a/src/arch/armv7/include/arch/cache.h +++ /dev/null @@ -1,341 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2013 Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * cache.h: Cache maintenance API for ARMv7 - */ - -#ifndef ARMV7_CACHE_H -#define ARMV7_CACHE_H - -#include <stddef.h> -#include <stdint.h> - -/* SCTLR bits */ -#define SCTLR_M (1 << 0) /* MMU enable */ -#define SCTLR_A (1 << 1) /* Alignment check enable */ -#define SCTLR_C (1 << 2) /* Data/unified cache enable */ -/* Bits 4:3 are reserved */ -#define SCTLR_CP15BEN (1 << 5) /* CP15 barrier enable */ -/* Bit 6 is reserved */ -#define SCTLR_B (1 << 7) /* Endianness */ -/* Bits 9:8 */ -#define SCTLR_SW (1 << 10) /* SWP and SWPB enable */ -#define SCTLR_Z (1 << 11) /* Branch prediction enable */ -#define SCTLR_I (1 << 12) /* Instruction cache enable */ -#define SCTLR_V (1 << 13) /* Low/high exception vectors */ -#define SCTLR_RR (1 << 14) /* Round Robin select */ -/* Bits 16:15 are reserved */ -#define SCTLR_HA (1 << 17) /* Hardware Access flag enable */ -/* Bit 18 is reserved */ -/* Bits 20:19 reserved virtualization not supported */ -#define SCTLR_WXN (1 << 19) /* Write permission implies XN */ -#define SCTLR_UWXN (1 << 20) /* Unprivileged write permission - implies PL1 XN */ -#define SCTLR_FI (1 << 21) /* Fast interrupt config enable */ -#define SCTLR_U (1 << 22) /* Unaligned access behavior */ -#define SCTLR_VE (1 << 24) /* Interrupt vectors enable */ -#define SCTLR_EE (1 << 25) /* Exception endianness */ -/* Bit 26 is reserved */ -#define SCTLR_NMFI (1 << 27) /* Non-maskable FIQ support */ -#define SCTLR_TRE (1 << 28) /* TEX remap enable */ -#define SCTLR_AFE (1 << 29) /* Access flag enable */ -#define SCTLR_TE (1 << 30) /* Thumb exception enable */ -/* Bit 31 is reserved */ - -/* - * Sync primitives - */ - -/* data memory barrier */ -static inline void dmb(void) -{ - asm volatile ("dmb" : : : "memory"); -} - -/* data sync barrier */ -static inline void dsb(void) -{ - asm volatile ("dsb" : : : "memory"); -} - -/* instruction sync barrier */ -static inline void isb(void) -{ - asm volatile ("isb" : : : "memory"); -} - -/* - * Low-level TLB maintenance operations - */ - -/* invalidate entire data TLB */ -static inline void dtlbiall(void) -{ - asm volatile ("mcr p15, 0, %0, c8, c6, 0" : : "r" (0) : "memory"); -} - -/* invalidate entire instruction TLB */ -static inline void itlbiall(void) -{ - asm volatile ("mcr p15, 0, %0, c8, c5, 0" : : "r" (0)); -} - -/* invalidate entire unified TLB */ -static inline void tlbiall(void) -{ - asm volatile ("mcr p15, 0, %0, c8, c7, 0" : : "r" (0) : "memory"); -} - -/* invalidate unified TLB by MVA, all ASID */ -static inline void tlbimvaa(unsigned long mva) -{ - asm volatile ("mcr p15, 0, %0, c8, c7, 3" : : "r" (mva) : "memory"); -} - -/* write data access control register (DACR) */ -static inline void write_dacr(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c3, c0, 0" : : "r" (val)); -} - -/* write translation table base register 0 (TTBR0) */ -static inline void write_ttbr0(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c2, c0, 0" : : "r" (val) : "memory"); -} - -/* read translation table base control register (TTBCR) */ -static inline uint32_t read_ttbcr(void) -{ - uint32_t val = 0; - asm volatile ("mrc p15, 0, %0, c2, c0, 2" : "=r" (val)); - return val; -} - -/* write translation table base control register (TTBCR) */ -static inline void write_ttbcr(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c2, c0, 2" : : "r" (val) : "memory"); -} - -/* - * Low-level cache maintenance operations - */ - -/* branch predictor invalidate all */ -static inline void bpiall(void) -{ - asm volatile ("mcr p15, 0, %0, c7, c5, 6" : : "r" (0)); -} - -/* data cache clean and invalidate by MVA to PoC */ -static inline void dccimvac(unsigned long mva) -{ - asm volatile ("mcr p15, 0, %0, c7, c14, 1" : : "r" (mva) : "memory"); -} - -/* data cache invalidate by set/way */ -static inline void dccisw(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c7, c14, 2" : : "r" (val) : "memory"); -} - -/* data cache clean by MVA to PoC */ -static inline void dccmvac(unsigned long mva) -{ - asm volatile ("mcr p15, 0, %0, c7, c10, 1" : : "r" (mva) : "memory"); -} - -/* data cache clean by set/way */ -static inline void dccsw(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c7, c10, 2" : : "r" (val) : "memory"); -} - -/* data cache invalidate by MVA to PoC */ -static inline void dcimvac(unsigned long mva) -{ - asm volatile ("mcr p15, 0, %0, c7, c6, 1" : : "r" (mva) : "memory"); -} - -/* data cache invalidate by set/way */ -static inline void dcisw(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c7, c6, 2" : : "r" (val) : "memory"); -} - -/* instruction cache invalidate all by PoU */ -static inline void iciallu(void) -{ - asm volatile ("mcr p15, 0, %0, c7, c5, 0" : : "r" (0)); -} - -/* - * Cache co-processor (CP15) access functions - */ - -/* read cache level ID register (CLIDR) */ -static inline uint32_t read_clidr(void) -{ - uint32_t val = 0; - asm volatile ("mrc p15, 1, %0, c0, c0, 1" : "=r" (val)); - return val; -} - -/* read cache size ID register register (CCSIDR) */ -static inline uint32_t read_ccsidr(void) -{ - uint32_t val = 0; - asm volatile ("mrc p15, 1, %0, c0, c0, 0" : "=r" (val)); - return val; -} - -/* read cache size selection register (CSSELR) */ -static inline uint32_t read_csselr(void) -{ - uint32_t val = 0; - asm volatile ("mrc p15, 2, %0, c0, c0, 0" : "=r" (val)); - return val; -} - -/* write to cache size selection register (CSSELR) */ -static inline void write_csselr(uint32_t val) -{ - /* - * Bits [3:1] - Cache level + 1 (0b000 = L1, 0b110 = L7, 0b111 is rsvd) - * Bit 0 - 0 = data or unified cache, 1 = instruction cache - */ - asm volatile ("mcr p15, 2, %0, c0, c0, 0" : : "r" (val)); - isb(); /* ISB to sync the change to CCSIDR */ -} - -/* read L2 control register (L2CTLR) */ -static inline uint32_t read_l2ctlr(void) -{ - uint32_t val = 0; - asm volatile ("mrc p15, 1, %0, c9, c0, 2" : "=r" (val)); - return val; -} - -/* write L2 control register (L2CTLR) */ -static inline void write_l2ctlr(uint32_t val) -{ - /* - * Note: L2CTLR can only be written when the L2 memory system - * is idle, ie before the MMU is enabled. - */ - asm volatile("mcr p15, 1, %0, c9, c0, 2" : : "r" (val) : "memory" ); - isb(); -} - -/* read L2 Auxiliary Control Register (L2ACTLR) */ -static inline uint32_t read_l2actlr(void) -{ - uint32_t val = 0; - asm volatile ("mrc p15, 1, %0, c15, c0, 0" : "=r" (val)); - return val; -} - -/* write L2 Auxiliary Control Register (L2ACTLR) */ -static inline void write_l2actlr(uint32_t val) -{ - asm volatile ("mcr p15, 1, %0, c15, c0, 0" : : "r" (val) : "memory" ); - isb(); -} - -/* read system control register (SCTLR) */ -static inline uint32_t read_sctlr(void) -{ - uint32_t val; - asm volatile ("mrc p15, 0, %0, c1, c0, 0" : "=r" (val)); - return val; -} - -/* write system control register (SCTLR) */ -static inline void write_sctlr(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c1, c0, 0" : : "r" (val) : "cc"); - isb(); -} - -/* - * Cache maintenance API - */ - -/* dcache clean and invalidate all (on current level given by CCSELR) */ -void dcache_clean_invalidate_all(void); - -/* dcache clean by modified virtual address to PoC */ -void dcache_clean_by_mva(void const *addr, size_t len); - -/* dcache clean and invalidate by modified virtual address to PoC */ -void dcache_clean_invalidate_by_mva(void const *addr, size_t len); - -/* dcache invalidate by modified virtual address to PoC */ -void dcache_invalidate_by_mva(void const *addr, size_t len); - -void dcache_clean_all(void); - -/* dcache invalidate all (on current level given by CCSELR) */ -void dcache_invalidate_all(void); - -/* dcache and MMU disable */ -void dcache_mmu_disable(void); - -/* dcache and MMU enable */ -void dcache_mmu_enable(void); - -/* icache invalidate all (on current level given by CSSELR) */ -void icache_invalidate_all(void); - -/* tlb invalidate all */ -void tlb_invalidate_all(void); - -/* - * Generalized setup/init functions - */ - -/* invalidate all caches on ARMv7 */ -void armv7_invalidate_caches(void); - -/* mmu initialization (set page table address, set permissions, etc) */ -void mmu_init(void); - -enum dcache_policy { - DCACHE_OFF, - DCACHE_WRITEBACK, - DCACHE_WRITETHROUGH, -}; - -/* disable the mmu for a range. Primarily useful to lock out address 0. */ -void mmu_disable_range(unsigned long start_mb, unsigned long size_mb); -/* mmu range configuration (set dcache policy) */ -void mmu_config_range(unsigned long start_mb, unsigned long size_mb, - enum dcache_policy policy); - -#endif /* ARMV7_CACHE_H */ diff --git a/src/arch/armv7/include/arch/cpu.h b/src/arch/armv7/include/arch/cpu.h deleted file mode 100644 index 52cc8a3..0000000 --- a/src/arch/armv7/include/arch/cpu.h +++ /dev/null @@ -1,108 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2012 Google Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA - */ - -#ifndef __ARCH_CPU_H__ -#define __ARCH_CPU_H__ - -#define asmlinkage - -#if !defined(__PRE_RAM__) -#include <device/device.h> - -struct cpu_driver { - struct device_operations *ops; - struct cpu_device_id *id_table; -}; - -struct thread; - -struct cpu_info { - device_t cpu; - unsigned long index; -#if CONFIG_COOP_MULTITASKING - struct thread *thread; -#endif -}; - -struct cpuinfo_arm { - uint8_t arm; /* CPU family */ - uint8_t arm_vendor; /* CPU vendor */ - uint8_t arm_model; -}; - -#endif - -/* Primitives for CPU and MP cores. */ - -/* read Main Id register (MIDR) */ -inline static uint32_t read_midr(void) -{ - uint32_t value; - asm volatile ("mrc p15, 0, %0, c0, c0, 0" : "=r"(value)); - return value; -} - -/* read Multiprocessor Affinity Register (MPIDR) */ -inline static uint32_t read_mpidr(void) -{ - uint32_t value; - asm volatile ("mrc p15, 0, %0, c0, c0, 5" : "=r"(value)); - return value; -} - -/* read Auxiliary Control Register (ACTLR) */ -inline static uint32_t read_actlr(void) -{ - uint32_t val = 0; - asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r"(val)); - return val; -} - -/* write Auxiliary Control Register (ACTLR) */ -inline static void write_actlr(uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c1, c0, 1" : : "r" (val)); -} - -/* wait for interrupt. */ -inline static void wfi(void) -{ - asm volatile ("wfi" : : : "memory"); -} - -/* wait for event. */ -inline static void wfe(void) -{ - asm volatile ("wfe"); -} - -/* set event (to bring up cores in WFE state). */ -inline static void sev(void) -{ - asm volatile ("sev"); -} - -/* puts CPU into System mode and disable interrupts. */ -inline static void set_system_mode(void) -{ - asm volatile("msr cpsr_c, %0" :: "r"(0x1f | 0xc0)); -} - -struct cpu_info *cpu_info(void); -#endif /* __ARCH_CPU_H__ */ diff --git a/src/arch/armv7/include/arch/early_variables.h b/src/arch/armv7/include/arch/early_variables.h deleted file mode 100644 index cec0a46..0000000 --- a/src/arch/armv7/include/arch/early_variables.h +++ /dev/null @@ -1,59 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA - */ - -#ifndef ARCH_EARLY_VARIABLES_H -#define ARCH_EARLY_VARIABLES_H - -#ifdef __PRE_RAM__ -#define CAR_GLOBAL __attribute__((section(".car.global_data"))) -#define CAR_CBMEM __attribute__((section(".car.cbmem_console"))) -#else -#define CAR_GLOBAL -#define CAR_CBMEM -#endif - -#if defined(__PRE_RAM__) -#define CAR_MIGRATE_ATTR __attribute__ ((used,section (".car.migrate"))) - -/* Call migrate_fn_() when CAR globals are migrated. */ -#define CAR_MIGRATE(migrate_fn_) \ - static void (* const migrate_fn_ ## _ptr)(void) CAR_MIGRATE_ATTR = \ - migrate_fn_; - -/* Get the correct pointer for the CAR global variable. */ -void *car_get_var_ptr(void *var); - -/* Get and set a primitive type global variable. */ -#define car_get_var(var) \ - *(typeof(var) *)car_get_var_ptr(&(var)) -#define car_set_var(var, val) \ - do { car_get_var(var) = (val); } while(0) - -/* Migrate the CAR variables to memory. */ -void car_migrate_variables(void); - -#else -#define CAR_MIGRATE(migrate_fn_) -static inline void *car_get_var_ptr(void *var) { return var; } -#define car_get_var(var) (var) -#define car_set_var(var, val) do { (var) = (val); } while (0) -static inline void car_migrate_variables(void) { } -#endif - -#endif diff --git a/src/arch/armv7/include/arch/exception.h b/src/arch/armv7/include/arch/exception.h deleted file mode 100644 index 57076bd..0000000 --- a/src/arch/armv7/include/arch/exception.h +++ /dev/null @@ -1,38 +0,0 @@ -/* - * This file is part of the libpayload project. - * - * Copyright 2013 Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef _ARCH_EXCEPTION_H -#define _ARCH_EXCEPTION_H - -#include <stdint.h> - -void exception_init(void); -void set_vbar(uint32_t vbar); - -#endif diff --git a/src/arch/armv7/include/arch/hlt.h b/src/arch/armv7/include/arch/hlt.h deleted file mode 100644 index 285b6f8..0000000 --- a/src/arch/armv7/include/arch/hlt.h +++ /dev/null @@ -1,9 +0,0 @@ -#ifndef ARCH_HLT_H -#define ARCH_HLT_H - -static inline __attribute__((always_inline)) void hlt(void) -{ - for (;;) ; -} - -#endif /* ARCH_HLT_H */ diff --git a/src/arch/armv7/include/arch/io.h b/src/arch/armv7/include/arch/io.h deleted file mode 100644 index e044090..0000000 --- a/src/arch/armv7/include/arch/io.h +++ /dev/null @@ -1,133 +0,0 @@ -/* - * Originally imported from linux/include/asm-arm/io.h. This file has changed - * substantially since then. - * - * Copyright 2013 Google Inc. - * Copyright (C) 1996-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Modifications: - * 08-Apr-2013 G Replaced several macros with inlines for type safety. - * 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both - * constant addresses and variable addresses. - * 04-Dec-1997 RMK Moved a lot of this stuff to the new architecture - * specific IO header files. - * 27-Mar-1999 PJB Second parameter of memcpy_toio is const.. - * 04-Apr-1999 PJB Added check_signature. - * 12-Dec-1999 RMK More cleanups - * 18-Jun-2000 RMK Removed virt_to_* and friends definitions - */ -#ifndef __ASM_ARM_IO_H -#define __ASM_ARM_IO_H - -#include <types.h> -#include <arch/cache.h> /* for dmb() */ -#include <arch/byteorder.h> - -static inline uint8_t read8(const void *addr) -{ - dmb(); - return *(volatile uint8_t *)addr; -} - -static inline uint16_t read16(const void *addr) -{ - dmb(); - return *(volatile uint16_t *)addr; -} - -static inline uint32_t read32(const void *addr) -{ - dmb(); - return *(volatile uint32_t *)addr; -} - -static inline void write8(uint8_t val, void *addr) -{ - dmb(); - *(volatile uint8_t *)addr = val; - dmb(); -} - -static inline void write16(uint16_t val, void *addr) -{ - dmb(); - *(volatile uint16_t *)addr = val; - dmb(); -} - -static inline void write32(uint32_t val, void *addr) -{ - dmb(); - *(volatile uint32_t *)addr = val; - dmb(); -} - -/* - * FIXME: These are to avoid breaking existing ARM code. We should eventually - * re-factor all code to specify the data length intended. - */ -#define readb(a) read8(a) -#define writeb(v,a) write8(v,a) -#define readl(a) read32(a) -#define writel(v,a) write32(v,a) - -/* - * Clear and set bits in one shot. These macros can be used to clear and - * set multiple bits in a register using a single call. These macros can - * also be used to set a multiple-bit bit pattern using a mask, by - * specifying the mask in the 'clear' parameter and the new bit pattern - * in the 'set' parameter. - */ - -#define out_arch(type,endian,a,v) write##type(cpu_to_##endian(v),a) -#define in_arch(type,endian,a) endian##_to_cpu(read##type(a)) - -#define out_le32(a,v) out_arch(l,le32,a,v) -#define out_le16(a,v) out_arch(w,le16,a,v) - -#define in_le32(a) in_arch(l,le32,a) -#define in_le16(a) in_arch(w,le16,a) - -#define out_be32(a,v) out_arch(l,be32,a,v) -#define out_be16(a,v) out_arch(w,be16,a,v) - -#define in_be32(a) in_arch(l,be32,a) -#define in_be16(a) in_arch(w,be16,a) - -#define out_8(a,v) writeb(v,a) -#define in_8(a) readb(a) - -#define clrbits(type, addr, clear) \ - out_##type((addr), in_##type(addr) & ~(clear)) - -#define setbits(type, addr, set) \ - out_##type((addr), in_##type(addr) | (set)) - -#define clrsetbits(type, addr, clear, set) \ - out_##type((addr), (in_##type(addr) & ~(clear)) | (set)) - -#define clrbits_be32(addr, clear) clrbits(be32, addr, clear) -#define setbits_be32(addr, set) setbits(be32, addr, set) -#define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set) - -#define clrbits_le32(addr, clear) clrbits(le32, addr, clear) -#define setbits_le32(addr, set) setbits(le32, addr, set) -#define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set) - -#define clrbits_be16(addr, clear) clrbits(be16, addr, clear) -#define setbits_be16(addr, set) setbits(be16, addr, set) -#define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set) - -#define clrbits_le16(addr, clear) clrbits(le16, addr, clear) -#define setbits_le16(addr, set) setbits(le16, addr, set) -#define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set) - -#define clrbits_8(addr, clear) clrbits(8, addr, clear) -#define setbits_8(addr, set) setbits(8, addr, set) -#define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set) - -#endif /* __ASM_ARM_IO_H */ diff --git a/src/arch/armv7/include/arch/pci_ops.h b/src/arch/armv7/include/arch/pci_ops.h deleted file mode 100644 index 7a7ed32..0000000 --- a/src/arch/armv7/include/arch/pci_ops.h +++ /dev/null @@ -1,25 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2013 Google Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef ARCH_ARMV7_PCI_OPS_H -#define ARCH_ARMV7_PCI_OPS_H - -/* Empty stub until PCI includes are properly fixed. */ - -#endif diff --git a/src/arch/armv7/include/arch/stages.h b/src/arch/armv7/include/arch/stages.h deleted file mode 100644 index 671c02b..0000000 --- a/src/arch/armv7/include/arch/stages.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 The ChromiumOS Authors - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef __ARCH_STAGES_H -#define __ARCH_STAGES_H - -extern void main(void); - -void stage_entry(void) __attribute__((section(".text.stage_entry.armv7"))); -void stage_exit(void *); - -#endif diff --git a/src/arch/armv7/include/arch/types.h b/src/arch/armv7/include/arch/types.h deleted file mode 100644 index be7e76c..0000000 --- a/src/arch/armv7/include/arch/types.h +++ /dev/null @@ -1,46 +0,0 @@ -#ifndef __ASM_ARM_TYPES_H -#define __ASM_ARM_TYPES_H - -typedef unsigned short umode_t; - -/* - * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the - * header files exported to user space - */ - -typedef __signed__ char __s8; -typedef unsigned char __u8; - -typedef __signed__ short __s16; -typedef unsigned short __u16; - -typedef __signed__ int __s32; -typedef unsigned int __u32; - -#if defined(__GNUC__) -__extension__ typedef __signed__ long long __s64; -__extension__ typedef unsigned long long __u64; -#endif - -typedef signed char s8; -typedef unsigned char u8; - -typedef signed short s16; -typedef unsigned short u16; - -typedef signed int s32; -typedef unsigned int u32; - -typedef signed long long s64; -typedef unsigned long long u64; - -#define BITS_PER_LONG 32 - -/* Dma addresses are 32-bits wide. */ - -typedef u32 dma_addr_t; - -typedef unsigned long phys_addr_t; -typedef unsigned long phys_size_t; - -#endif diff --git a/src/arch/armv7/include/armv7.h b/src/arch/armv7/include/armv7.h deleted file mode 100644 index 1473234..0000000 --- a/src/arch/armv7/include/armv7.h +++ /dev/null @@ -1,76 +0,0 @@ -/* - * (C) Copyright 2010 - * Texas Instruments, <www.ti.com> - * Aneesh V aneesh@ti.com - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ -#ifndef ARMV7_H -#define ARMV7_H -#include <types.h> - -/* Cortex-A9 revisions */ -#define MIDR_CORTEX_A9_R0P1 0x410FC091 -#define MIDR_CORTEX_A9_R1P2 0x411FC092 -#define MIDR_CORTEX_A9_R1P3 0x411FC093 -#define MIDR_CORTEX_A9_R2P10 0x412FC09A - -/* Cortex-A15 revisions */ -#define MIDR_CORTEX_A15_R0P0 0x410FC0F0 - -/* CCSIDR */ -#define CCSIDR_LINE_SIZE_OFFSET 0 -#define CCSIDR_LINE_SIZE_MASK 0x7 -#define CCSIDR_ASSOCIATIVITY_OFFSET 3 -#define CCSIDR_ASSOCIATIVITY_MASK (0x3FF << 3) -#define CCSIDR_NUM_SETS_OFFSET 13 -#define CCSIDR_NUM_SETS_MASK (0x7FFF << 13) - -/* - * Values for InD field in CSSELR - * Selects the type of cache - */ -#define ARMV7_CSSELR_IND_DATA_UNIFIED 0 -#define ARMV7_CSSELR_IND_INSTRUCTION 1 - -/* Values for Ctype fields in CLIDR */ -#define ARMV7_CLIDR_CTYPE_NO_CACHE 0 -#define ARMV7_CLIDR_CTYPE_INSTRUCTION_ONLY 1 -#define ARMV7_CLIDR_CTYPE_DATA_ONLY 2 -#define ARMV7_CLIDR_CTYPE_INSTRUCTION_DATA 3 -#define ARMV7_CLIDR_CTYPE_UNIFIED 4 - -/* - * CP15 Barrier instructions - * Please note that we have separate barrier instructions in ARMv7 - * However, we use the CP15 based instructions because we use - * -march=armv5 in U-Boot - */ -#define CP15ISB asm volatile ("mcr p15, 0, %0, c7, c5, 4" : : "r" (0)) -#define CP15DSB asm volatile ("mcr p15, 0, %0, c7, c10, 4" : : "r" (0)) -#define CP15DMB asm volatile ("mcr p15, 0, %0, c7, c10, 5" : : "r" (0)) - -void v7_outer_cache_enable(void); -void v7_outer_cache_disable(void); -void v7_outer_cache_flush_all(void); -void v7_outer_cache_inval_all(void); -void v7_outer_cache_flush_range(u32 start, u32 end); -void v7_outer_cache_inval_range(u32 start, u32 end); - -#endif diff --git a/src/arch/armv7/include/assembler.h b/src/arch/armv7/include/assembler.h deleted file mode 100644 index 10363c4..0000000 --- a/src/arch/armv7/include/assembler.h +++ /dev/null @@ -1,62 +0,0 @@ -/* - * arch/arm/include/asm/assembler.h - * - * Copyright (C) 1996-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This file contains arm architecture specific defines - * for the different processors. - * - * Do not include any C declarations in this file - it is included by - * assembler source. - */ - -/* - * Endian independent macros for shifting bytes within registers. - */ -#ifndef __ARMEB__ -#define pull lsr -#define push lsl -#define get_byte_0 lsl #0 -#define get_byte_1 lsr #8 -#define get_byte_2 lsr #16 -#define get_byte_3 lsr #24 -#define put_byte_0 lsl #0 -#define put_byte_1 lsl #8 -#define put_byte_2 lsl #16 -#define put_byte_3 lsl #24 -#else -#define pull lsl -#define push lsr -#define get_byte_0 lsr #24 -#define get_byte_1 lsr #16 -#define get_byte_2 lsr #8 -#define get_byte_3 lsl #0 -#define put_byte_0 lsl #24 -#define put_byte_1 lsl #16 -#define put_byte_2 lsl #8 -#define put_byte_3 lsl #0 -#endif - -/* - * Data preload for architectures that support it - */ -#if defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) || \ - defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || \ - defined(__ARM_ARCH_6T2__) || defined(__ARM_ARCH_6Z__) || \ - defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_7A__) || \ - defined(__ARM_ARCH_7R__) -#define PLD(code...) code -#else -#define PLD(code...) -#endif - -/* - * Cache aligned - */ -#define CALGN(code...) code - -#define W(instr) instr diff --git a/src/arch/armv7/include/bootblock_common.h b/src/arch/armv7/include/bootblock_common.h deleted file mode 100644 index 034a12b..0000000 --- a/src/arch/armv7/include/bootblock_common.h +++ /dev/null @@ -1,15 +0,0 @@ -#if CONFIG_CPU_HAS_BOOTBLOCK_INIT -void bootblock_cpu_init(void); -#else -static void __attribute__((unused)) bootblock_cpu_init(void) -{ -} -#endif - -#if CONFIG_MAINBOARD_HAS_BOOTBLOCK_INIT -void bootblock_mainboard_init(void); -#else -static void __attribute__((unused)) bootblock_mainboard_init(void) -{ -} -#endif diff --git a/src/arch/armv7/include/clocks.h b/src/arch/armv7/include/clocks.h deleted file mode 100644 index 58cf838..0000000 --- a/src/arch/armv7/include/clocks.h +++ /dev/null @@ -1,43 +0,0 @@ -/* - * Copyright (c) 2011 The Chromium OS Authors. - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -/* Standard clock speeds */ - -/* - * We define some commonly-used clock speeds to avoid error since long - * numbers are hard to read. - * - * The format of the label is - * CLK_x_yU where: - * x is the integer speed - * y is the fractional part which can be omitted if 0 - * U is the units (blank for Hz, K or M for KHz and MHz) - * - * Please order the items by increasing Hz - */ -enum { - CLK_32768 = 32768, - CLK_20M = 20000000, - CLK_24M = 24000000, - CLK_144M = 144000000, - CLK_216M = 216000000, - CLK_300M = 300000000, -}; diff --git a/src/arch/armv7/include/smp/spinlock.h b/src/arch/armv7/include/smp/spinlock.h deleted file mode 100644 index 1dc397c..0000000 --- a/src/arch/armv7/include/smp/spinlock.h +++ /dev/null @@ -1,52 +0,0 @@ -#ifndef ARCH_SMP_SPINLOCK_H -#define ARCH_SMP_SPINLOCK_H - -/* FIXME: implement this for ARM */ -#error "implement this for ARM" -#if 0 -/* - * Your basic SMP spinlocks, allowing only a single CPU anywhere - */ - -typedef struct { - volatile unsigned int lock; -} spinlock_t; - - -#define SPIN_LOCK_UNLOCKED (spinlock_t) { 1 } -#define DECLARE_SPIN_LOCK(x) static spinlock_t x = SPIN_LOCK_UNLOCKED; - -#define barrier() __asm__ __volatile__("": : :"memory") -#define spin_is_locked(x) (*(volatile char *)(&(x)->lock) != 0) -#define spin_unlock_wait(x) do { barrier(); } while(spin_is_locked(x)) - -static inline __attribute__((always_inline)) void spin_lock(spinlock_t *lock) -{ - unsigned long tmp; - __asm__ __volatile__ ( - "1: ldrex %0, [%1]\n" - " teq %0, #0\n" - " strexeq %0, %2, [%1]\n" - " teqeq %0, #0\n" - " bne 1b\n" - : "=&r" (tmp) - : "r" (&lock->lock), "r" (1) - : "cc" - ); - barrier(); -} - -static inline __attribute__((always_inline)) void spin_unlock(spinlock_t *lock) -{ - __asm__ __volatile__( - " str %1, [%0]\n" - : - : "r" (&lock->lock), "r" (0) - : "cc" - ); -} - -#define cpu_relax() barrier() - -#endif -#endif /* ARCH_SMP_SPINLOCK_H */ diff --git a/src/arch/armv7/include/stdint.h b/src/arch/armv7/include/stdint.h deleted file mode 100644 index 9d41e63..0000000 --- a/src/arch/armv7/include/stdint.h +++ /dev/null @@ -1,93 +0,0 @@ -#ifndef ARM_STDINT_H -#define ARM_STDINT_H - -#if defined(__GNUC__) -#define __HAVE_LONG_LONG__ 1 -#else -#define __HAVE_LONG_LONG__ 0 -#endif - -/* Exact integral types */ -typedef unsigned char uint8_t; -typedef signed char int8_t; - -typedef unsigned short uint16_t; -typedef signed short int16_t; - -typedef unsigned int uint32_t; -typedef signed int int32_t; - -#if __HAVE_LONG_LONG__ -typedef unsigned long long uint64_t; -typedef signed long long int64_t; -#endif - -/* Small types */ -typedef unsigned char uint_least8_t; -typedef signed char int_least8_t; - -typedef unsigned short uint_least16_t; -typedef signed short int_least16_t; - -typedef unsigned int uint_least32_t; -typedef signed int int_least32_t; - -#if __HAVE_LONG_LONG__ -typedef unsigned long long uint_least64_t; -typedef signed long long int_least64_t; -#endif - -/* Fast Types */ -typedef unsigned char uint_fast8_t; -typedef signed char int_fast8_t; - -typedef unsigned int uint_fast16_t; -typedef signed int int_fast16_t; - -typedef unsigned int uint_fast32_t; -typedef signed int int_fast32_t; - -#if __HAVE_LONG_LONG__ -typedef unsigned long long uint_fast64_t; -typedef signed long long int_fast64_t; -#endif - -/* Types for `void *' pointers. */ -typedef int intptr_t; -typedef unsigned int uintptr_t; - -/* Largest integral types */ -#if __HAVE_LONG_LONG__ -typedef long long int intmax_t; -typedef unsigned long long uintmax_t; -#else -typedef long int intmax_t; -typedef unsigned long int uintmax_t; -#endif - -typedef uint8_t u8; -typedef uint16_t u16; -typedef uint32_t u32; -#if __HAVE_LONG_LONG__ -typedef uint64_t u64; -#endif -typedef int8_t s8; -typedef int16_t s16; -typedef int32_t s32; - -#ifndef UINT32_MAX -#define UINT32_MAX (4294967295U) -#endif -#ifndef UINT64_MAX -# define UINT64_MAX (18446744073709551615ULL) -#endif -#ifndef UINT64_C -#define UINT64_C(c) c ## ULL -#endif -#ifndef PRIu64 -#define PRIu64 "llu" -#endif - -#undef __HAVE_LONG_LONG__ - -#endif /* ARM_STDINT_H */ diff --git a/src/arch/armv7/include/utils.h b/src/arch/armv7/include/utils.h deleted file mode 100644 index 828b86c..0000000 --- a/src/arch/armv7/include/utils.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * (C) Copyright 2010 - * Texas Instruments, <www.ti.com> - * Aneesh V aneesh@ti.com - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ -#ifndef _UTILS_H_ -#define _UTILS_H_ - -static inline s32 log_2_n_round_up(u32 n) -{ - s32 log2n = -1; - u32 temp = n; - - while (temp) { - log2n++; - temp >>= 1; - } - - if (n & (n - 1)) - return log2n + 1; /* not power of 2 - round up */ - else - return log2n; /* power of 2 */ -} - -static inline s32 log_2_n_round_down(u32 n) -{ - s32 log2n = -1; - u32 temp = n; - - while (temp) { - log2n++; - temp >>= 1; - } - - return log2n; -} - -#endif diff --git a/src/arch/armv7/memcpy.S b/src/arch/armv7/memcpy.S deleted file mode 100644 index 921fc2a..0000000 --- a/src/arch/armv7/memcpy.S +++ /dev/null @@ -1,244 +0,0 @@ -/* - * linux/arch/arm/lib/memcpy.S - * - * Author: Nicolas Pitre - * Created: Sep 28, 2005 - * Copyright: MontaVista Software, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <assembler.h> - -#define W(instr) instr - -#define LDR1W_SHIFT 0 -#define STR1W_SHIFT 0 - - .macro ldr1w ptr reg abort - W(ldr) \reg, [\ptr], #4 - .endm - - .macro ldr4w ptr reg1 reg2 reg3 reg4 abort - ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4} - .endm - - .macro ldr8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort - ldmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} - .endm - - .macro ldr1b ptr reg cond=al abort - ldr\cond()b \reg, [\ptr], #1 - .endm - - .macro str1w ptr reg abort - W(str) \reg, [\ptr], #4 - .endm - - .macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort - stmia \ptr!, {\reg1, \reg2, \reg3, \reg4, \reg5, \reg6, \reg7, \reg8} - .endm - - .macro str1b ptr reg cond=al abort - str\cond()b \reg, [\ptr], #1 - .endm - - .macro enter reg1 reg2 - stmdb sp!, {r0, \reg1, \reg2} - .endm - - .macro exit reg1 reg2 - ldmfd sp!, {r0, \reg1, \reg2} - .endm - - .text - -/* Prototype: void *memcpy(void *dest, const void *src, size_t n); */ - -.type memcpy, function -.globl memcpy -memcpy: - - cmp r0, r1 - moveq pc, lr - - enter r4, lr - - subs r2, r2, #4 - blt 8f - ands ip, r0, #3 - PLD( pld [r1, #0] ) - bne 9f - ands ip, r1, #3 - bne 10f - -1: subs r2, r2, #(28) - stmfd sp!, {r5 - r8} - blt 5f - - CALGN( ands ip, r0, #31 ) - CALGN( rsb r3, ip, #32 ) - CALGN( sbcnes r4, r3, r2 ) @ C is always set here - CALGN( bcs 2f ) - CALGN( adr r4, 6f ) - CALGN( subs r2, r2, r3 ) @ C gets set - CALGN( add pc, r4, ip ) - - PLD( pld [r1, #0] ) -2: PLD( subs r2, r2, #96 ) - PLD( pld [r1, #28] ) - PLD( blt 4f ) - PLD( pld [r1, #60] ) - PLD( pld [r1, #92] ) - -3: PLD( pld [r1, #124] ) -4: ldr8w r1, r3, r4, r5, r6, r7, r8, ip, lr, abort=20f - subs r2, r2, #32 - str8w r0, r3, r4, r5, r6, r7, r8, ip, lr, abort=20f - bge 3b - PLD( cmn r2, #96 ) - PLD( bge 4b ) - -5: ands ip, r2, #28 - rsb ip, ip, #32 -#if LDR1W_SHIFT > 0 - lsl ip, ip, #LDR1W_SHIFT -#endif - addne pc, pc, ip @ C is always clear here - b 7f -6: - .rept (1 << LDR1W_SHIFT) - W(nop) - .endr - ldr1w r1, r3, abort=20f - ldr1w r1, r4, abort=20f - ldr1w r1, r5, abort=20f - ldr1w r1, r6, abort=20f - ldr1w r1, r7, abort=20f - ldr1w r1, r8, abort=20f - ldr1w r1, lr, abort=20f - -#if LDR1W_SHIFT < STR1W_SHIFT - lsl ip, ip, #STR1W_SHIFT - LDR1W_SHIFT -#elif LDR1W_SHIFT > STR1W_SHIFT - lsr ip, ip, #LDR1W_SHIFT - STR1W_SHIFT -#endif - add pc, pc, ip - nop - .rept (1 << STR1W_SHIFT) - W(nop) - .endr - str1w r0, r3, abort=20f - str1w r0, r4, abort=20f - str1w r0, r5, abort=20f - str1w r0, r6, abort=20f - str1w r0, r7, abort=20f - str1w r0, r8, abort=20f - str1w r0, lr, abort=20f - - CALGN( bcs 2b ) - -7: ldmfd sp!, {r5 - r8} - -8: movs r2, r2, lsl #31 - ldr1b r1, r3, ne, abort=21f - ldr1b r1, r4, cs, abort=21f - ldr1b r1, ip, cs, abort=21f - str1b r0, r3, ne, abort=21f - str1b r0, r4, cs, abort=21f - str1b r0, ip, cs, abort=21f - - exit r4, pc - -9: rsb ip, ip, #4 - cmp ip, #2 - ldr1b r1, r3, gt, abort=21f - ldr1b r1, r4, ge, abort=21f - ldr1b r1, lr, abort=21f - str1b r0, r3, gt, abort=21f - str1b r0, r4, ge, abort=21f - subs r2, r2, ip - str1b r0, lr, abort=21f - blt 8b - ands ip, r1, #3 - beq 1b - -10: bic r1, r1, #3 - cmp ip, #2 - ldr1w r1, lr, abort=21f - beq 17f - bgt 18f - - - .macro forward_copy_shift pull push - - subs r2, r2, #28 - blt 14f - - CALGN( ands ip, r0, #31 ) - CALGN( rsb ip, ip, #32 ) - CALGN( sbcnes r4, ip, r2 ) @ C is always set here - CALGN( subcc r2, r2, ip ) - CALGN( bcc 15f ) - -11: stmfd sp!, {r5 - r9} - - PLD( pld [r1, #0] ) - PLD( subs r2, r2, #96 ) - PLD( pld [r1, #28] ) - PLD( blt 13f ) - PLD( pld [r1, #60] ) - PLD( pld [r1, #92] ) - -12: PLD( pld [r1, #124] ) -13: ldr4w r1, r4, r5, r6, r7, abort=19f - mov r3, lr, pull #\pull - subs r2, r2, #32 - ldr4w r1, r8, r9, ip, lr, abort=19f - orr r3, r3, r4, push #\push - mov r4, r4, pull #\pull - orr r4, r4, r5, push #\push - mov r5, r5, pull #\pull - orr r5, r5, r6, push #\push - mov r6, r6, pull #\pull - orr r6, r6, r7, push #\push - mov r7, r7, pull #\pull - orr r7, r7, r8, push #\push - mov r8, r8, pull #\pull - orr r8, r8, r9, push #\push - mov r9, r9, pull #\pull - orr r9, r9, ip, push #\push - mov ip, ip, pull #\pull - orr ip, ip, lr, push #\push - str8w r0, r3, r4, r5, r6, r7, r8, r9, ip, , abort=19f - bge 12b - PLD( cmn r2, #96 ) - PLD( bge 13b ) - - ldmfd sp!, {r5 - r9} - -14: ands ip, r2, #28 - beq 16f - -15: mov r3, lr, pull #\pull - ldr1w r1, lr, abort=21f - subs ip, ip, #4 - orr r3, r3, lr, push #\push - str1w r0, r3, abort=21f - bgt 15b - CALGN( cmp r2, #0 ) - CALGN( bge 11b ) - -16: sub r1, r1, #(\push / 8) - b 8b - - .endm - - - forward_copy_shift pull=8 push=24 - -17: forward_copy_shift pull=16 push=16 - -18: forward_copy_shift pull=24 push=8 diff --git a/src/arch/armv7/memmove.S b/src/arch/armv7/memmove.S deleted file mode 100644 index a2f9ea1..0000000 --- a/src/arch/armv7/memmove.S +++ /dev/null @@ -1,197 +0,0 @@ -/* - * linux/arch/arm/lib/memmove.S - * - * Author: Nicolas Pitre - * Created: Sep 28, 2005 - * Copyright: (C) MontaVista Software Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <assembler.h> - - .text - -/* - * Prototype: void *memmove(void *dest, const void *src, size_t n); - * - * Note: - * - * If the memory regions don't overlap, we simply branch to memcpy which is - * normally a bit faster. Otherwise the copy is done going downwards. This - * is a transposition of the code from copy_template.S but with the copy - * occurring in the opposite direction. - */ - -.type memmove, function -.globl memmove -memmove: - subs ip, r0, r1 - cmphi r2, ip - bls memcpy - - stmfd sp!, {r0, r4, lr} - add r1, r1, r2 - add r0, r0, r2 - subs r2, r2, #4 - blt 8f - ands ip, r0, #3 - PLD( pld [r1, #-4] ) - bne 9f - ands ip, r1, #3 - bne 10f - -1: subs r2, r2, #(28) - stmfd sp!, {r5 - r8} - blt 5f - - CALGN( ands ip, r0, #31 ) - CALGN( sbcnes r4, ip, r2 ) @ C is always set here - CALGN( bcs 2f ) - CALGN( adr r4, 6f ) - CALGN( subs r2, r2, ip ) @ C is set here - CALGN( rsb ip, ip, #32 ) - CALGN( add pc, r4, ip ) - - PLD( pld [r1, #-4] ) -2: PLD( subs r2, r2, #96 ) - PLD( pld [r1, #-32] ) - PLD( blt 4f ) - PLD( pld [r1, #-64] ) - PLD( pld [r1, #-96] ) - -3: PLD( pld [r1, #-128] ) -4: ldmdb r1!, {r3, r4, r5, r6, r7, r8, ip, lr} - subs r2, r2, #32 - stmdb r0!, {r3, r4, r5, r6, r7, r8, ip, lr} - bge 3b - PLD( cmn r2, #96 ) - PLD( bge 4b ) - -5: ands ip, r2, #28 - rsb ip, ip, #32 - addne pc, pc, ip @ C is always clear here - b 7f -6: W(nop) - W(ldr) r3, [r1, #-4]! - W(ldr) r4, [r1, #-4]! - W(ldr) r5, [r1, #-4]! - W(ldr) r6, [r1, #-4]! - W(ldr) r7, [r1, #-4]! - W(ldr) r8, [r1, #-4]! - W(ldr) lr, [r1, #-4]! - - add pc, pc, ip - nop - W(nop) - W(str) r3, [r0, #-4]! - W(str) r4, [r0, #-4]! - W(str) r5, [r0, #-4]! - W(str) r6, [r0, #-4]! - W(str) r7, [r0, #-4]! - W(str) r8, [r0, #-4]! - W(str) lr, [r0, #-4]! - - CALGN( bcs 2b ) - -7: ldmfd sp!, {r5 - r8} - -8: movs r2, r2, lsl #31 - ldrneb r3, [r1, #-1]! - ldrcsb r4, [r1, #-1]! - ldrcsb ip, [r1, #-1] - strneb r3, [r0, #-1]! - strcsb r4, [r0, #-1]! - strcsb ip, [r0, #-1] - ldmfd sp!, {r0, r4, pc} - -9: cmp ip, #2 - ldrgtb r3, [r1, #-1]! - ldrgeb r4, [r1, #-1]! - ldrb lr, [r1, #-1]! - strgtb r3, [r0, #-1]! - strgeb r4, [r0, #-1]! - subs r2, r2, ip - strb lr, [r0, #-1]! - blt 8b - ands ip, r1, #3 - beq 1b - -10: bic r1, r1, #3 - cmp ip, #2 - ldr r3, [r1, #0] - beq 17f - blt 18f - - - .macro backward_copy_shift push pull - - subs r2, r2, #28 - blt 14f - - CALGN( ands ip, r0, #31 ) - CALGN( sbcnes r4, ip, r2 ) @ C is always set here - CALGN( subcc r2, r2, ip ) - CALGN( bcc 15f ) - -11: stmfd sp!, {r5 - r9} - - PLD( pld [r1, #-4] ) - PLD( subs r2, r2, #96 ) - PLD( pld [r1, #-32] ) - PLD( blt 13f ) - PLD( pld [r1, #-64] ) - PLD( pld [r1, #-96] ) - -12: PLD( pld [r1, #-128] ) -13: ldmdb r1!, {r7, r8, r9, ip} - mov lr, r3, push #\push - subs r2, r2, #32 - ldmdb r1!, {r3, r4, r5, r6} - orr lr, lr, ip, pull #\pull - mov ip, ip, push #\push - orr ip, ip, r9, pull #\pull - mov r9, r9, push #\push - orr r9, r9, r8, pull #\pull - mov r8, r8, push #\push - orr r8, r8, r7, pull #\pull - mov r7, r7, push #\push - orr r7, r7, r6, pull #\pull - mov r6, r6, push #\push - orr r6, r6, r5, pull #\pull - mov r5, r5, push #\push - orr r5, r5, r4, pull #\pull - mov r4, r4, push #\push - orr r4, r4, r3, pull #\pull - stmdb r0!, {r4 - r9, ip, lr} - bge 12b - PLD( cmn r2, #96 ) - PLD( bge 13b ) - - ldmfd sp!, {r5 - r9} - -14: ands ip, r2, #28 - beq 16f - -15: mov lr, r3, push #\push - ldr r3, [r1, #-4]! - subs ip, ip, #4 - orr lr, lr, r3, pull #\pull - str lr, [r0, #-4]! - bgt 15b - CALGN( cmp r2, #0 ) - CALGN( bge 11b ) - -16: add r1, r1, #(\pull / 8) - b 8b - - .endm - - - backward_copy_shift push=8 pull=24 - -17: backward_copy_shift push=16 pull=16 - -18: backward_copy_shift push=24 pull=8 diff --git a/src/arch/armv7/memset.S b/src/arch/armv7/memset.S deleted file mode 100644 index a3cc947..0000000 --- a/src/arch/armv7/memset.S +++ /dev/null @@ -1,127 +0,0 @@ -/* - * linux/arch/arm/lib/memset.S - * - * Copyright (C) 1995-2000 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * ASM optimised string functions - */ -#include <assembler.h> - - .text - .align 5 - .word 0 - -1: subs r2, r2, #4 @ 1 do we have enough - blt 5f @ 1 bytes to align with? - cmp r3, #2 @ 1 - strltb r1, [r0], #1 @ 1 - strleb r1, [r0], #1 @ 1 - strb r1, [r0], #1 @ 1 - add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3)) -/* - * The pointer is now aligned and the length is adjusted. Try doing the - * memset again. - */ - -.type memset, function -.globl memset -memset: - ands r3, r0, #3 @ 1 unaligned? - bne 1b @ 1 -/* - * we know that the pointer in r0 is aligned to a word boundary. - */ - orr r1, r1, r1, lsl #8 - orr r1, r1, r1, lsl #16 - mov r3, r1 - cmp r2, #16 - blt 4f - -#if ! CALGN(1)+0 - -/* - * We need an extra register for this loop - save the return address and - * use the LR - */ - str lr, [sp, #-4]! - mov ip, r1 - mov lr, r1 - -2: subs r2, r2, #64 - stmgeia r0!, {r1, r3, ip, lr} @ 64 bytes at a time. - stmgeia r0!, {r1, r3, ip, lr} - stmgeia r0!, {r1, r3, ip, lr} - stmgeia r0!, {r1, r3, ip, lr} - bgt 2b - ldmeqfd sp!, {pc} @ Now <64 bytes to go. -/* - * No need to correct the count; we're only testing bits from now on - */ - tst r2, #32 - stmneia r0!, {r1, r3, ip, lr} - stmneia r0!, {r1, r3, ip, lr} - tst r2, #16 - stmneia r0!, {r1, r3, ip, lr} - ldr lr, [sp], #4 - -#else - -/* - * This version aligns the destination pointer in order to write - * whole cache lines at once. - */ - - stmfd sp!, {r4-r7, lr} - mov r4, r1 - mov r5, r1 - mov r6, r1 - mov r7, r1 - mov ip, r1 - mov lr, r1 - - cmp r2, #96 - tstgt r0, #31 - ble 3f - - and ip, r0, #31 - rsb ip, ip, #32 - sub r2, r2, ip - movs ip, ip, lsl #(32 - 4) - stmcsia r0!, {r4, r5, r6, r7} - stmmiia r0!, {r4, r5} - tst ip, #(1 << 30) - mov ip, r1 - strne r1, [r0], #4 - -3: subs r2, r2, #64 - stmgeia r0!, {r1, r3-r7, ip, lr} - stmgeia r0!, {r1, r3-r7, ip, lr} - bgt 3b - ldmeqfd sp!, {r4-r7, pc} - - tst r2, #32 - stmneia r0!, {r1, r3-r7, ip, lr} - tst r2, #16 - stmneia r0!, {r4-r7} - ldmfd sp!, {r4-r7, lr} - -#endif - -4: tst r2, #8 - stmneia r0!, {r1, r3} - tst r2, #4 - strne r1, [r0], #4 -/* - * When we get here, we've got less than 4 bytes to zero. We - * may have an unaligned pointer as well. - */ -5: tst r2, #2 - strneb r1, [r0], #1 - strneb r1, [r0], #1 - tst r2, #1 - strneb r1, [r0], #1 - mov pc, lr diff --git a/src/arch/armv7/mmu.c b/src/arch/armv7/mmu.c deleted file mode 100644 index cc915a6..0000000 --- a/src/arch/armv7/mmu.c +++ /dev/null @@ -1,144 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2013 Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <config.h> -#include <stdlib.h> -#include <stdint.h> - -#include <cbmem.h> -#include <console/console.h> - -#include <arch/cache.h> -#include <arch/io.h> - -static void *const ttb_buff = (void *)CONFIG_TTB_BUFFER; - -void mmu_disable_range(unsigned long start_mb, unsigned long size_mb) -{ - unsigned int i; - uint32_t *ttb_entry = ttb_buff; - printk(BIOS_DEBUG, "Disabling: 0x%08lx:0x%08lx\n", - start_mb*MiB, start_mb*MiB + size_mb*MiB - 1); - - for (i = start_mb; i < start_mb + size_mb; i++) - writel(0, &ttb_entry[i]); - - for (i = start_mb; i < start_mb + size_mb; i++) { - dccmvac((uintptr_t)&ttb_entry[i]); - tlbimvaa(i*MiB); - } -} - -void mmu_config_range(unsigned long start_mb, unsigned long size_mb, - enum dcache_policy policy) -{ - unsigned int i; - uint32_t attr; - uint32_t *ttb_entry = ttb_buff; - const char *str = NULL; - - /* - * Section entry bits: - * 31:20 - section base address - * 18 - 0 to indicate normal section (versus supersection) - * 17 - nG, 0 to indicate page is global - * 16 - S, 0 for non-shareable (?) - * 15 - APX, 0 for full access - * 14:12 - TEX, 0b000 for outer and inner write-back - * 11:10 - AP, 0b11 for full access - * 9 - P, ? (FIXME: not described or possibly obsolete?) - * 8: 5 - Domain - * 4 - XN, 1 to set execute-never (and also avoid prefetches) - * 3 - C, 1 for cacheable - * 2 - B, 1 for bufferable - * 1: 0 - 0b10 to indicate section entry - */ - - switch(policy) { - case DCACHE_OFF: - /* XN set to avoid prefetches to uncached/unbuffered regions */ - attr = (0x3 << 10) | (1 << 4) | 0x2; - str = "off"; - break; - case DCACHE_WRITEBACK: - attr = (0x3 << 10) | (1 << 3) | (1 << 2) | 0x2; - str = "writeback"; - break; - case DCACHE_WRITETHROUGH: - attr = (0x3 << 10) | (1 << 3) | 0x2; - str = "writethrough"; - break; - default: - printk(BIOS_ERR, "unknown dcache policy: %02x\n", policy); - return; - } - - printk(BIOS_DEBUG, "Setting dcache policy: 0x%08lx:0x%08lx [%s]\n", - start_mb << 20, ((start_mb + size_mb) << 20) - 1, str); - - /* Write out page table entries. */ - for (i = start_mb; i < start_mb + size_mb; i++) - writel((i << 20) | attr, &ttb_entry[i]); - - /* Flush the page table entries, and old translations from the TLB. */ - for (i = start_mb; i < start_mb + size_mb; i++) { - dccmvac((uintptr_t)&ttb_entry[i]); - tlbimvaa(i*MiB); - } -} - -void mmu_init(void) -{ - /* - * For coreboot's purposes, we will create a simple L1 page table - * in RAM with 1MB section translation entries over the 4GB address - * space. - * (ref: section 10.2 and example 15-4 in Cortex-A series - * programmer's guide) - */ - printk(BIOS_DEBUG, "Translation table is @ %p\n", ttb_buff); - - /* - * Disable TTBR1 by setting TTBCR.N to 0b000, which means the TTBR0 - * table size is 16KB and has indices VA[31:20]. - * - * ref: Arch Ref. Manual for ARMv7-A, B3.5.4, - */ - write_ttbcr(read_ttbcr() & ~0x3); - - /* - * Translation table base 0 address is in bits 31:14-N, where N is given - * by bits 2:0 in TTBCR (which we set to 0). All lower bits in this - * register should be zero for coreboot. - */ - write_ttbr0((uintptr_t)ttb_buff); - - /* disable domain-level checking of permissions */ - write_dacr(~0); -} diff --git a/src/arch/armv7/ramstage.ld b/src/arch/armv7/ramstage.ld deleted file mode 100644 index 91efe2c..0000000 --- a/src/arch/armv7/ramstage.ld +++ /dev/null @@ -1,134 +0,0 @@ -/* - * Memory map: - * - * CONFIG_RAMSTAGE_BASE : text segment - * : rodata segment - * : data segment - * : bss segment - * : stack - * : heap - */ -/* - * Bootstrap code for the STPC Consumer - * Copyright (c) 1999 by Net Insight AB. All Rights Reserved. - */ - -/* - * Written by Johan Rydberg, based on work by Daniel Kahlin. - * Rewritten by Eric Biederman - * 2005.12 yhlu add ramstage cross the vga font buffer handling - */ - -/* We use ELF as output format. So that we can debug the code in some form. */ -INCLUDE ldoptions - -ENTRY(stage_entry) - -PHDRS -{ - to_load PT_LOAD; -} - -SECTIONS -{ - . = CONFIG_RAMSTAGE_BASE; - /* First we place the code and read only data (typically const declared). - * This could theoretically be placed in rom. - */ - .text : { - _text = .; - _start = .; - *(.text.stage_entry.armv7); - *(.text); - *(.text.*); - . = ALIGN(16); - _etext = .; - } : to_load - - .ctors : { - . = ALIGN(0x100); - __CTOR_LIST__ = .; - *(.ctors); - LONG(0); - __CTOR_END__ = .; - } - - .rodata : { - _rodata = .; - . = ALIGN(4); - pci_drivers = . ; - *(.rodata.pci_driver) - epci_drivers = . ; - cpu_drivers = . ; - *(.rodata.cpu_driver) - ecpu_drivers = . ; - _bs_init_begin = .; - *(.bs_init) - _bs_init_end = .; - *(.rodata) - *(.rodata.*) - /* kevinh/Ispiri - Added an align, because the objcopy tool - * incorrectly converts sections that are not long word aligned. - */ - . = ALIGN(4); - - _erodata = .; - } - /* After the code we place initialized data (typically initialized - * global variables). This gets copied into ram by startup code. - * __data_start and __data_end shows where in ram this should be placed, - * whereas __data_loadstart and __data_loadend shows where in rom to - * copy from. - */ - .data : { - _data = .; - *(.data) - _edata = .; - } - - /* bss does not contain data, it is just a space that should be zero - * initialized on startup. (typically uninitialized global variables) - * crt0.S fills between _bss and _ebss with zeroes. - */ - _bss = .; - .bss . : { - *(.bss) - *(.sbss) - *(COMMON) - } - _ebss = .; - _end = .; - - /* coreboot really "ends" here. Only heap and stack are placed after - * this line. - */ - - _heap = .; - .heap . : { - /* Reserve CONFIG_HEAP_SIZE bytes for the heap */ - . = CONFIG_HEAP_SIZE ; - . = ALIGN(4); - } - _eheap = .; - - /* The ram segment. This includes all memory used by the memory - * resident copy of coreboot, except the tables that are produced on - * the fly, but including stack and heap. - */ - _ram_seg = _text; - _eram_seg = _eheap; - - /* The stack lives in SRAM in a different location, so keep - * it out of ram_seg - */ - _stack = CONFIG_STACK_BOTTOM; - _estack = CONFIG_STACK_TOP; - - /* Discard the sections we don't need/want */ - - /DISCARD/ : { - *(.comment) - *(.note) - *(.note.*) - } -} diff --git a/src/arch/armv7/romstage.ld b/src/arch/armv7/romstage.ld deleted file mode 100644 index a9c3f8b..0000000 --- a/src/arch/armv7/romstage.ld +++ /dev/null @@ -1,109 +0,0 @@ -/* - * Memory map: - * - * CONFIG_ROMSTAGE_BASE : text segment - * : rodata segment - * : data segment - * : bss segment - * : stack - * : heap - */ -/* - * Bootstrap code for the STPC Consumer - * Copyright (c) 1999 by Net Insight AB. All Rights Reserved. - */ - -/* - * Written by Johan Rydberg, based on work by Daniel Kahlin. - * Rewritten by Eric Biederman - * 2005.12 yhlu add ramstage cross the vga font buffer handling - */ - -/* We use ELF as output format. So that we can debug the code in some form. */ - -/* We use ELF as output format. So that we can debug the code in some form. */ -OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") -OUTPUT_ARCH(arm) -INCLUDE ldoptions - -ENTRY(stage_entry) - -PHDRS -{ - to_load PT_LOAD; -} - -SECTIONS -{ - /* TODO make this a configurable option (per chipset). */ - . = CONFIG_ROMSTAGE_BASE; - - .romtext . : { - _rom = .; - _start = .; - *(.text.stage_entry.armv7); - *(.text.startup); - *(.text); - } : to_load - - .romdata . : { - *(.rodata); - *(.machine_param); - *(.data); - . = ALIGN(16); - _car_migrate_start = .; - *(.car.migrate); - _car_migrate_end = .; - . = ALIGN(16); - _erom = .; - } - - /* bss does not contain data, it is just a space that should be zero - * initialized on startup. (typically uninitialized global variables) - * crt0.S fills between _bss and _ebss with zeroes. - */ - .bss . : { - . = ALIGN(8); - _bss = .; - *(.bss) - *(.sbss) - *(COMMON) - } - - _ebss = .; - - .car.data . : { - . = ALIGN(8); - _car_data_start = .; - *(.car.global_data); - . = ALIGN(8); - /* The cbmem_console section comes last to take advantage of - * a zero-sized array to hold the memconsole contents that - * grows to a bound of CONFIG_CONSOLE_CAR_BUFFER_SIZE. However, - * collisions within the cache-as-ram region cannot be - * statically checked because the cache-as-ram region usage is - * cpu/chipset dependent. */ - *(.car.cbmem_console); - _car_data_end = .; - } - - _end = .; - - /* TODO: check if we are running out of SRAM. Below check is not good - * enough though because SRAM has different size on different CPUs - * and not all SRAM is available to the romstage. On Exynos, some is - * used for BL1, the bootblock and the stack. - * - * _bogus = ASSERT((_end - _start + EXPECTED_CBMEM_CONSOLE_SIZE <= \ - * 0x54000), "SRAM area is too full"); - */ - - /* Discard the sections we don't need/want */ - /DISCARD/ : { - *(.comment) - *(.note) - *(.comment.*) - *(.note.*) - *(.eh_frame); - } -} diff --git a/src/arch/armv7/stages.c b/src/arch/armv7/stages.c deleted file mode 100644 index 38d1b19..0000000 --- a/src/arch/armv7/stages.c +++ /dev/null @@ -1,61 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2012 Google Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/* - * This file contains entry/exit functions for each stage during coreboot - * execution (bootblock entry and ramstage exit will depend on external - * loading. - * - * Unlike other files, this one should be compiled with a -m option to - * specify a pre-determined instruction set. This is to ensure consistency - * in the CPU operating mode (ARM or Thumb) when hand-off between stages - * occurs. - * - * Entry points must be placed at the location the previous stage jumps - * to (the lowest address in the stage image). This is done by giving - * stage_entry() its own section in .text and placing it first in the - * linker script. - */ - -#include <arch/stages.h> -#include <arch/cache.h> - -void stage_entry(void) -{ - main(); -} - -/* we had marked 'doit' as 'noreturn'. - * There is no apparent harm in leaving it as something we can return from, and in the one - * case where we call a payload, the payload is allowed to return. - * Hence, leave it as something we can return from. - */ -void stage_exit(void *addr) -{ - void (*doit)(void) = addr; - /* make sure any code we installed is written to memory. Not all ARM have - * unified caches. - */ - dcache_clean_all(); - /* Because most stages copy code to memory, it's a safe and hygienic thing - * to flush the icache here. - */ - icache_invalidate_all(); - doit(); -} diff --git a/src/arch/armv7/tables.c b/src/arch/armv7/tables.c deleted file mode 100644 index 20c5a9f..0000000 --- a/src/arch/armv7/tables.c +++ /dev/null @@ -1,77 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2003 Eric Biederman - * Copyright (C) 2005 Steve Magnani - * Copyright (C) 2008-2009 coresystems GmbH - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <console/console.h> -#include <cpu/cpu.h> -#include <boot/tables.h> -#include <boot/coreboot_tables.h> -#include <string.h> -#include <cbmem.h> -#include <lib.h> - -#define MAX_COREBOOT_TABLE_SIZE (8 * 1024) - -#if !CONFIG_DYNAMIC_CBMEM -void __attribute__((weak)) get_cbmem_table(uint64_t *base, uint64_t *size) -{ - printk(BIOS_WARNING, "WARNING: you need to define get_cbmem_table for your board\n"); - *base = 0; - *size = 0; -} -#endif - -void cbmem_arch_init(void) -{ -} - -void cbmem_fail_resume(void) -{ -} - -void write_tables(void) -{ - unsigned long table_pointer, new_table_pointer; - - post_code(0x9d); - - table_pointer = (unsigned long)cbmem_add(CBMEM_ID_CBTABLE, - MAX_COREBOOT_TABLE_SIZE); - if (!table_pointer) { - printk(BIOS_ERR, "Could not add CBMEM for coreboot table.\n"); - return; - } - - new_table_pointer = write_coreboot_table(0UL, 0UL, - table_pointer, table_pointer); - - if (new_table_pointer > (table_pointer + MAX_COREBOOT_TABLE_SIZE)) { - printk(BIOS_ERR, "coreboot table didn't fit (%lx/%x bytes)\n", - new_table_pointer - table_pointer, MAX_COREBOOT_TABLE_SIZE); - } - - printk(BIOS_DEBUG, "coreboot table: %ld bytes.\n", - new_table_pointer - table_pointer); - - post_code(0x9e); - - /* Print CBMEM sections */ - cbmem_list(); -} diff --git a/src/arch/armv7/thread.c b/src/arch/armv7/thread.c deleted file mode 100644 index d0c23ff..0000000 --- a/src/arch/armv7/thread.c +++ /dev/null @@ -1,127 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Google, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ -#include <console/console.h> -#include <thread.h> - -/* The stack frame looks like the following. */ -struct pushed_regs { - u32 r4; - u32 r5; - u32 r6; - u32 r7; - u32 r8; - u32 r9; - u32 r10; - u32 r11; - u32 lr; -}; - -static inline uintptr_t push_stack(uintptr_t cur_stack, uintptr_t value) -{ - uintptr_t *addr; - - cur_stack -= sizeof(value); - addr = (uintptr_t *)cur_stack; - *addr = value; - return cur_stack; -} - -void arch_prepare_thread(struct thread *t, - void asmlinkage (*thread_entry)(void *), void *arg) -{ - uintptr_t stack = t->stack_current; - int i; - uintptr_t poison = 0xdeadbeef; - - /* Push the LR. thread_entry() - * is assumed to never return. - */ - stack = push_stack(stack, (uintptr_t)thread_entry); - /* Make room for the registers. - * Poison the initial stack. This is good hygiene and finds bugs. - * Poisoning the stack with different values helps when you're - * hunting for (e.g.) misaligned stacks or other such - * weirdness. The -1 is because we already pushed lr. - */ - for(i = 0; i < sizeof(struct pushed_regs)/sizeof(u32)-1; i++) - stack = push_stack(stack, poison++); - - t->stack_current = stack; -} - -/* We could write this as a .S and the first time around that's how we - * did it. But there's always the question of matching our ARM - * directives in the .S with how gcc is doing things. It seems best - * to follow the pattern of the rest of the ARM port and just use - * inline assembly and let gcc get all the ELF magic right. - */ -void __attribute__((naked)) -switch_to_thread(uintptr_t new_stack, uintptr_t *saved_stack) -{ - /* Defintions for those of us not totally familiar with ARM: - * R15 -- PC, R14 -- LR, R13 -- SP - * R0-R3 need not be saved, nor R12. - * on entry, the only saved state is in LR -- the old PC. - * The args are in R0,R1. - * R0 is the new stack - * R1 is a pointer to the old stack save location - * Push R4-R11 and LR - * then switch stacks - * then pop R0-R12 and LR - * then mov PC,LR - * - * stack layout - * +------------+ - * | LR | <-- sp + 0x20 - * +------------+ - * | R11 | <-- sp + 0x1c - * +------------+ - * | R10 | <-- sp + 0x18 - * +------------+ - * | R9 | <-- sp + 0x14 - * +------------+ - * | R8 | <-- sp + 0x10 - * +------------+ - * | R7 | <-- sp + 0x0c - * +------------+ - * | R6 | <-- sp + 0x08 - * +------------+ - * | R5 | <-- sp + 0x04 - * +------------+ - * | R4 | <-- sp + 0x00 - * +------------+ - */ - asm volatile ( - /* save context. */ - "push {r4-r11,lr}\n\t" - /* Save the current stack */ - "str sp,[r1]\n\t" - /* switch to the new stack */ - "mov sp,r0\n\t" - /* restore the registers */ - "pop {r4-r11,lr}\n\t" - /* resume other thread. */ - "mov pc,lr\n\t" - ); -} - -void *arch_get_thread_stackbase(void) -{ - return (void *)CONFIG_STACK_BOTTOM; -} diff --git a/src/console/Kconfig b/src/console/Kconfig index 054177f..c7c3ea5 100644 --- a/src/console/Kconfig +++ b/src/console/Kconfig @@ -2,7 +2,7 @@ menu "Console"
config BOOTBLOCK_CONSOLE bool "Enable early (bootblock) console output." - depends on ARCH_ARMV7 + depends on ARCH_ARM default n help Use console during the bootblock if supported diff --git a/src/cpu/ti/am335x/Makefile.inc b/src/cpu/ti/am335x/Makefile.inc index c5c1e64..032b1f4 100644 --- a/src/cpu/ti/am335x/Makefile.inc +++ b/src/cpu/ti/am335x/Makefile.inc @@ -16,7 +16,7 @@ ramstage-y += uart.c endif
$(call add-class,omap-header) -$(eval $(call create_class_compiler,omap-header,armv7)) +$(eval $(call create_class_compiler,omap-header,arm))
real-target: $(obj)/MLO
diff --git a/src/device/oprom/yabel/device.h b/src/device/oprom/yabel/device.h index 017aab9..63f1d8e 100644 --- a/src/device/oprom/yabel/device.h +++ b/src/device/oprom/yabel/device.h @@ -128,7 +128,7 @@ u8 biosemu_dev_translate_address(int type, unsigned long * addr); static inline void out32le(void *addr, u32 val) { -#if CONFIG_ARCH_X86 || CONFIG_ARCH_ARMV7 +#if CONFIG_ARCH_X86 || CONFIG_ARCH_ARM *((u32*) addr) = cpu_to_le32(val); #else asm volatile ("stwbrx %0, 0, %1"::"r" (val), "r"(addr)); @@ -139,7 +139,7 @@ static inline u32 in32le(void *addr) { u32 val; -#if CONFIG_ARCH_X86 || CONFIG_ARCH_ARMV7 +#if CONFIG_ARCH_X86 || CONFIG_ARCH_ARM val = cpu_to_le32(*((u32 *) addr)); #else asm volatile ("lwbrx %0, 0, %1":"=r" (val):"r"(addr)); @@ -150,7 +150,7 @@ in32le(void *addr) static inline void out16le(void *addr, u16 val) { -#if CONFIG_ARCH_X86 || CONFIG_ARCH_ARMV7 +#if CONFIG_ARCH_X86 || CONFIG_ARCH_ARM *((u16*) addr) = cpu_to_le16(val); #else asm volatile ("sthbrx %0, 0, %1"::"r" (val), "r"(addr)); @@ -161,7 +161,7 @@ static inline u16 in16le(void *addr) { u16 val; -#if CONFIG_ARCH_X86 || CONFIG_ARCH_ARMV7 +#if CONFIG_ARCH_X86 || CONFIG_ARCH_ARM val = cpu_to_le16(*((u16*) addr)); #else asm volatile ("lhbrx %0, 0, %1":"=r" (val):"r"(addr)); diff --git a/src/drivers/uart/Kconfig b/src/drivers/uart/Kconfig index a979437..fef745e 100644 --- a/src/drivers/uart/Kconfig +++ b/src/drivers/uart/Kconfig @@ -5,7 +5,7 @@ config DRIVERS_UART
config DRIVERS_UART_8250IO bool "Serial port on SuperIO" - depends on !ARCH_ARMV7 + depends on !ARCH_ARM default n if NO_UART_ON_SUPERIO default y if ARCH_X86
diff --git a/src/include/cbfs_core.h b/src/include/cbfs_core.h index a1d8127..e74d618 100644 --- a/src/include/cbfs_core.h +++ b/src/include/cbfs_core.h @@ -107,7 +107,7 @@ struct cbfs_header { */ #define CBFS_ARCHITECTURE_UNKNOWN 0xFFFFFFFF #define CBFS_ARCHITECTURE_X86 0x00000001 -#define CBFS_ARCHITECTURE_ARMV7 0x00000010 +#define CBFS_ARCHITECTURE_ARM 0x00000010
/** This is a component header - every entry in the CBFS will have this header. diff --git a/src/soc/nvidia/tegra124/bootblock_asm.S b/src/soc/nvidia/tegra124/bootblock_asm.S index 8d0beb8..5f7de13 100644 --- a/src/soc/nvidia/tegra124/bootblock_asm.S +++ b/src/soc/nvidia/tegra124/bootblock_asm.S @@ -1,5 +1,5 @@ /* - * Early initialization code for ARMv7 architecture. + * Early initialization code for ARM architecture. * * This file is based off of the OMAP3530/ARM Cortex start.S file from Das * U-Boot, which itself got the file from armboot. diff --git a/src/vendorcode/google/chromeos/fmap.c b/src/vendorcode/google/chromeos/fmap.c index e0ec30b..bc56a19 100644 --- a/src/vendorcode/google/chromeos/fmap.c +++ b/src/vendorcode/google/chromeos/fmap.c @@ -41,7 +41,7 @@ const struct fmap *fmap_find(void) /* wrapping around 0x100000000 */ const struct fmap *fmap = (void *) (CONFIG_FLASHMAP_OFFSET - CONFIG_ROM_SIZE); -#elif CONFIG_ARCH_ARMV7 +#elif CONFIG_ARCH_ARM struct cbfs_media default_media, *media; media = &default_media; init_default_cbfs_media(media); diff --git a/toolchain.inc b/toolchain.inc index 3b9c5d2..326e474 100644 --- a/toolchain.inc +++ b/toolchain.inc @@ -55,12 +55,9 @@ COREBOOT_STANDARD_STAGES := bootblock romstage ramstage
ARCHDIR-i386 := x86 ARCHDIR-x86_32 := x86 -ARCHDIR-armv7 := armv7 +ARCHDIR-arm := arm
-CFLAGS_armv7 += \ - -ffixed-r8\ - -march=armv7-a\ - -marm\ +CFLAGS_arm += \ -mno-unaligned-access\ -mthumb\ -mthumb-interwork diff --git a/util/cbfstool/cbfs.h b/util/cbfstool/cbfs.h index 52a4a50..6a54bc8 100644 --- a/util/cbfstool/cbfs.h +++ b/util/cbfstool/cbfs.h @@ -51,7 +51,7 @@ struct cbfs_header {
#define CBFS_ARCHITECTURE_UNKNOWN 0xFFFFFFFF #define CBFS_ARCHITECTURE_X86 0x00000001 -#define CBFS_ARCHITECTURE_ARMV7 0x00000010 +#define CBFS_ARCHITECTURE_ARM 0x00000010
#define CBFS_FILE_MAGIC "LARCHIVE"
diff --git a/util/cbfstool/cbfstool.c b/util/cbfstool/cbfstool.c index f236d8b..937b610 100644 --- a/util/cbfstool/cbfstool.c +++ b/util/cbfstool/cbfstool.c @@ -586,7 +586,7 @@ static void usage(char *name) "Updates the FIT table with microcode entries\n" "\n" "ARCHes:\n" - " armv7, x86\n" + " arm, x86\n" "TYPEs:\n", name, name ); print_supported_filetypes(); diff --git a/util/cbfstool/common.c b/util/cbfstool/common.c index 6778eb9..a28e741 100644 --- a/util/cbfstool/common.c +++ b/util/cbfstool/common.c @@ -130,7 +130,7 @@ static struct { uint32_t arch; const char *name; } arch_names[] = { - { CBFS_ARCHITECTURE_ARMV7, "armv7" }, + { CBFS_ARCHITECTURE_ARM, "arm" }, { CBFS_ARCHITECTURE_X86, "x86" }, { CBFS_ARCHITECTURE_UNKNOWN, "unknown" } }; diff --git a/util/cbfstool/elfheaders.c b/util/cbfstool/elfheaders.c index fdd1599..4c0de89 100644 --- a/util/cbfstool/elfheaders.c +++ b/util/cbfstool/elfheaders.c @@ -610,7 +610,7 @@ elf_headers(const struct buffer *pinput,
// The tool may work in architecture-independent way. if (arch != CBFS_ARCHITECTURE_UNKNOWN && - !((ehdr->e_machine == EM_ARM) && (arch == CBFS_ARCHITECTURE_ARMV7)) && + !((ehdr->e_machine == EM_ARM) && (arch == CBFS_ARCHITECTURE_ARM)) && !((ehdr->e_machine == EM_386) && (arch == CBFS_ARCHITECTURE_X86))) { ERROR("The stage file has the wrong architecture\n"); return -1; diff --git a/util/runfw/googlesnow.c b/util/runfw/googlesnow.c index 686b4bc..125e0a2 100644 --- a/util/runfw/googlesnow.c +++ b/util/runfw/googlesnow.c @@ -114,7 +114,7 @@ Error in re-setting breakpoint 3: No source file named runbios.c. 1: x/i $pc => 0x20234bc <call_bootblock+12>: blx 0x20244b8 <main> (gdb) -main (bist=0) at src/arch/armv7/bootblock_simple.c:37 +main (bist=0) at src/arch/arm/bootblock_simple.c:37 37 { 1: x/i $pc => 0x20244b8 <main>: push {r3, lr} diff --git a/util/showdevicetree/showdt.c b/util/showdevicetree/showdt.c index dc4e4d6..4e904a2 100644 --- a/util/showdevicetree/showdt.c +++ b/util/showdevicetree/showdt.c @@ -165,5 +165,5 @@ main() * Example: (yank this and paste into M-x compile in emacs) * or tail -2 showdt.c | head -1 |sh * or whatever. - cc -I ../src -I ../src/include -I ../src/arch/armv7/include/ -include build/mainboard/google/snow/static.c showdt.c + cc -I ../src -I ../src/include -I ../src/arch/arm/include/ -include build/mainboard/google/snow/static.c showdt.c */ diff --git a/util/xcompile/xcompile b/util/xcompile/xcompile index 4b18942..e9f6d32 100755 --- a/util/xcompile/xcompile +++ b/util/xcompile/xcompile @@ -167,10 +167,10 @@ EOF }
# Architecture definition -SUPPORTED_ARCHITECTURE="x86 armv7 aarch64" +SUPPORTED_ARCHITECTURE="x86 arm aarch64"
-arch_config_armv7() { - TARCH="armv7" +arch_config_arm() { + TARCH="arm" TBFDARCH="littlearm" TCLIST="armv7a armv7-a" TWIDTH="32"