coreboot-gerrit September 2019

coreboot-gerrit@coreboot.org

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Change in ...coreboot[master]: WIP: libpayload: add initial support for RISC-V
by Philipp Hug (Code Review) 07 Aug '23

07 Aug '23

Philipp Hug has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/31356 Change subject: WIP: libpayload: add initial support for RISC-V ...................................................................... WIP: libpayload: add initial support for RISC-V Parse fdt provided by a2 and extract coreboot tables from it. Change-Id: I91df02069a0f8fd8771f73de0e866e9cea05cded Signed-off-by: Philipp Hug <philipp(a)hug.cx> --- M payloads/libpayload/Kconfig M payloads/libpayload/Makefile M payloads/libpayload/Makefile.inc A payloads/libpayload/arch/riscv/Kconfig A payloads/libpayload/arch/riscv/Makefile.inc A payloads/libpayload/arch/riscv/coreboot.c A payloads/libpayload/arch/riscv/head.S A payloads/libpayload/arch/riscv/libpayload.ldscript A payloads/libpayload/arch/riscv/main.c A payloads/libpayload/arch/riscv/sysinfo.c A payloads/libpayload/arch/riscv/timer.c A payloads/libpayload/arch/riscv/util.S A payloads/libpayload/arch/riscv/virtual.c M payloads/libpayload/bin/lpgcc A payloads/libpayload/configs/config.riscv A payloads/libpayload/configs/defconfig-riscv A payloads/libpayload/include/riscv/arch/asm.h A payloads/libpayload/include/riscv/arch/barrier.h A payloads/libpayload/include/riscv/arch/cache.h A payloads/libpayload/include/riscv/arch/io.h A payloads/libpayload/include/riscv/arch/types.h A payloads/libpayload/include/riscv/arch/virtual.h 22 files changed, 1,094 insertions(+), 1 deletion(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/56/31356/1 diff --git a/payloads/libpayload/Kconfig b/payloads/libpayload/Kconfig index 5bfbd54..846280d 100644 --- a/payloads/libpayload/Kconfig +++ b/payloads/libpayload/Kconfig @@ -119,6 +119,11 @@ help Support the MIPS architecture +config ARCH_RISCV + bool "RISCV" + help + Support the RISCV architecture + endchoice config MULTIBOOT @@ -148,12 +153,13 @@ default 0x04000000 if ARCH_ARM default 0x80100000 if ARCH_ARM64 default 0x00000000 if ARCH_MIPS + default 0x81000000 if ARCH_RISCV default 0x00100000 if ARCH_X86 help This is the base address for the payload. If unsure, set to 0x00100000 on x86, 0x00000000 on MIPS, - 0x04000000 on ARM or 0x80100000 on ARM64. + 0x04000000 on ARM or 0x80100000 on ARM64 or 0x81000000 on RISCV. endmenu @@ -451,4 +457,5 @@ source "arch/arm/Kconfig" source "arch/arm64/Kconfig" source "arch/mips/Kconfig" +source "arch/riscv/Kconfig" source "arch/x86/Kconfig" diff --git a/payloads/libpayload/Makefile b/payloads/libpayload/Makefile index 1a0acf1..e01115e 100644 --- a/payloads/libpayload/Makefile +++ b/payloads/libpayload/Makefile @@ -96,6 +96,7 @@ ARCHDIR-$(CONFIG_LP_ARCH_ARM) := arm ARCHDIR-$(CONFIG_LP_ARCH_ARM64) := arm64 ARCHDIR-$(CONFIG_LP_ARCH_MIPS) := mips +ARCHDIR-$(CONFIG_LP_ARCH_RISCV) := riscv ARCHDIR-$(CONFIG_LP_ARCH_X86) := x86 ARCH-y := $(ARCHDIR-y) @@ -105,6 +106,7 @@ ARCH-$(CONFIG_LP_ARCH_ARM) := arm ARCH-$(CONFIG_LP_ARCH_ARM64) := arm64 ARCH-$(CONFIG_LP_ARCH_X86) := x86_32 +ARCH-$(CONFIG_LP_ARCH_RISCV) := riscv ARCH-$(CONFIG_LP_ARCH_MIPS) := mips # Three cases where we don't need fully populated $(obj) lists: diff --git a/payloads/libpayload/Makefile.inc b/payloads/libpayload/Makefile.inc index 052a3f0..8ea0810 100644 --- a/payloads/libpayload/Makefile.inc +++ b/payloads/libpayload/Makefile.inc @@ -34,6 +34,7 @@ ARCHDIR-$(CONFIG_LP_ARCH_ARM) := arm ARCHDIR-$(CONFIG_LP_ARCH_ARM64) := arm64 ARCHDIR-$(CONFIG_LP_ARCH_MIPS) := mips +ARCHDIR-$(CONFIG_LP_ARCH_RISCV) := riscv ARCHDIR-$(CONFIG_LP_ARCH_X86) := x86 DESTDIR ?= install @@ -61,12 +62,15 @@ INCLUDES := -Iinclude -Iinclude/$(ARCHDIR-y) -I$(obj) -include include/kconfig.h +ARCHCFLAGS-$(CONFIG_LP_ARCH_RISCV) := -mcmodel=medany + CFLAGS += $(EXTRA_CFLAGS) $(INCLUDES) -Os -pipe -nostdinc -ggdb3 CFLAGS += -nostdlib -fno-builtin -ffreestanding -fomit-frame-pointer CFLAGS += -ffunction-sections -fdata-sections CFLAGS += -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes CFLAGS += -Wwrite-strings -Wredundant-decls -Wno-trigraphs CFLAGS += -Wstrict-aliasing -Wshadow -Werror +CFLAGS += $(ARCHCFLAGS-y) $(obj)/libpayload-config.h: $(KCONFIG_AUTOHEADER) cmp $@ $< 2>/dev/null || cp $< $@ diff --git a/payloads/libpayload/arch/riscv/Kconfig b/payloads/libpayload/arch/riscv/Kconfig new file mode 100644 index 0000000..6352ff0 --- /dev/null +++ b/payloads/libpayload/arch/riscv/Kconfig @@ -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. +## + +if ARCH_RISCV + +config ARCH_SPECIFIC_OPTIONS # dummy + def_bool y + select LITTLE_ENDIAN + select FDT + +endif diff --git a/payloads/libpayload/arch/riscv/Makefile.inc b/payloads/libpayload/arch/riscv/Makefile.inc new file mode 100644 index 0000000..01d6bd8 --- /dev/null +++ b/payloads/libpayload/arch/riscv/Makefile.inc @@ -0,0 +1,34 @@ +## +## 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. +## + +head.o-y += head.S + +libc-y += main.c sysinfo.c +libc-y += timer.c coreboot.c util.S +libc-y += virtual.c diff --git a/payloads/libpayload/arch/riscv/coreboot.c b/payloads/libpayload/arch/riscv/coreboot.c new file mode 100644 index 0000000..ea21c51 --- /dev/null +++ b/payloads/libpayload/arch/riscv/coreboot.c @@ -0,0 +1,94 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * Copyright (C) 2009 coresystems GmbH + * Copyright (C) 2019 Philipp Hug <philipp(a)hug.cx> + * + * 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> +#include <libfdt.h> + +/* This pointer gets set in head.S and is passed in from coreboot. */ +void *fdt_ptr; +int hart_id; + +/* == Architecture specific == */ + +int cb_parse_arch_specific(struct cb_record *rec, struct sysinfo_t *info) +{ + switch (rec->tag) { + default: + return 0; + } + return 1; +} + +int get_coreboot_info(struct sysinfo_t *info) +{ + void *cb_header_ptr = get_cb_header_ptr(); + if (cb_header_ptr == NULL) + return 1; + return cb_parse_header(cb_header_ptr, 1, info); +} + +void *get_cb_header_ptr(void) +{ + int offset; + int len; + const struct fdt_property *prop; + + /* + * coreboot tables are provides within the fdt which was passes as + * a2 to the entry point + */ + + if (fdt_check_header(fdt_ptr) != 0) { + printf("fdt: invalid header\n"); + return NULL; + } + + // search for coreboot node + offset = fdt_node_offset_by_compatible(fdt_ptr, -1, "coreboot"); + if (offset < 0) { + printf("fdt: coreboot node not found\n"); + return NULL; + } + + /* + * get reg property and extract the pointer to the coreboot tables + * TODO: parse cell info and fix for RV32 + */ + prop = fdt_get_property(fdt_ptr, offset, "reg", &len); + if (len != 32) { + printf("fdt: invalid reg property\n"); + return NULL; + } + + return (void *)fdt64_ld((fdt64_t *)prop->data); +} diff --git a/payloads/libpayload/arch/riscv/head.S b/payloads/libpayload/arch/riscv/head.S new file mode 100644 index 0000000..c46b20b --- /dev/null +++ b/payloads/libpayload/arch/riscv/head.S @@ -0,0 +1,74 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * Copyright (C) 2019 Philipp Hug <philipp(a)hug.cx> + * + * 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/asm.h> + +/* + * Our entry point + */ +ENTRY(_entry) + + /* Save off hart id in a0 */ + la t0, hart_id + sd a0, 0(t0) + + /* Save off device tree pointer in a1 */ + la t0, fdt_ptr + sd a1, 0(t0) + + /* + * busy-loop for harts != 0 + * TODO: add support hart > 0 + */ + li a3, 0 + beq a0, a3, _hart_zero +_hart_loop: + j _hart_loop +_hart_zero: + + /* + * Setup new stack + * TODO, use stack per hart + */ + la t0, _stack + li t1, 0xDEADBEEF + sd t1, 0(t0) + add sp, t0, 0 + + /* Let's rock. */ + tail start_main + +ENDPROC(_entry) + +.align 4 +1: +.quad fdt_ptr +2: +.quad _stack diff --git a/payloads/libpayload/arch/riscv/libpayload.ldscript b/payloads/libpayload/arch/riscv/libpayload.ldscript new file mode 100644 index 0000000..1929549 --- /dev/null +++ b/payloads/libpayload/arch/riscv/libpayload.ldscript @@ -0,0 +1,91 @@ +/* + * 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. + */ + +OUTPUT_FORMAT("elf64-littleriscv", "elf64-littleriscv","elf64-littleriscv") +OUTPUT_ARCH(riscv) + +ENTRY(_entry) + +SECTIONS +{ + . = CONFIG_LP_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 = .; + . += CONFIG_LP_HEAP_SIZE; + . = ALIGN(16); + _eheap = .; + + _estack = .; + . += CONFIG_LP_STACK_SIZE; + . = ALIGN(16); + _stack = .; + } + .debug : { + *(.debug) + } + + _end = .; + + /DISCARD/ : { + *(.comment) + *(.note*) + } +} diff --git a/payloads/libpayload/arch/riscv/main.c b/payloads/libpayload/arch/riscv/main.c new file mode 100644 index 0000000..83fb841 --- /dev/null +++ b/payloads/libpayload/arch/riscv/main.c @@ -0,0 +1,72 @@ +/* + * 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.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(); + +#if !IS_ENABLED(CONFIG_LP_SKIP_CONSOLE_INIT) + console_init(); +#endif + + // TODO: implement exceptions + // 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/riscv/sysinfo.c b/payloads/libpayload/arch/riscv/sysinfo.c new file mode 100644 index 0000000..575b7da --- /dev/null +++ b/payloads/libpayload/arch/riscv/sysinfo.c @@ -0,0 +1,79 @@ +/* + * 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. + * Also set some defaults for the console in case the fdt is messed up. + */ +struct cb_serial serial_info = { + .baseaddr = 0x10000000, + .type = CB_SERIAL_TYPE_MEMORY_MAPPED, + .regwidth = 1, +}; + +struct sysinfo_t lib_sysinfo = { + .cpu_khz = 1000, + .serial = &serial_info, +}; + +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 = 1; + + lib_sysinfo.memrange[0].base = 0x80000000u; + lib_sysinfo.memrange[0].size = 1024 * 1024; + lib_sysinfo.memrange[0].type = CB_MEM_RAM; + } + + return ret; +} + +void lib_sysinfo_get_memranges(struct memrange **ranges, + uint64_t *nranges) +{ + *ranges = &lib_sysinfo.memrange[0]; + *nranges = lib_sysinfo.n_memranges; +} diff --git a/payloads/libpayload/arch/riscv/timer.c b/payloads/libpayload/arch/riscv/timer.c new file mode 100644 index 0000000..d233ddc --- /dev/null +++ b/payloads/libpayload/arch/riscv/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 riscv/timer.c + * RISC-V 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/riscv/util.S b/payloads/libpayload/arch/riscv/util.S new file mode 100644 index 0000000..dde2099 --- /dev/null +++ b/payloads/libpayload/arch/riscv/util.S @@ -0,0 +1,35 @@ +/* + * 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. + */ + +#include <arch/asm.h> + +/* This function puts the system into a halt. */ +ENTRY(halt) + j halt +ENDPROC(halt) diff --git a/payloads/libpayload/arch/riscv/virtual.c b/payloads/libpayload/arch/riscv/virtual.c new file mode 100644 index 0000000..c3f4aa7 --- /dev/null +++ b/payloads/libpayload/arch/riscv/virtual.c @@ -0,0 +1,40 @@ +/* + * 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 <libpayload.h> +#include <assert.h> +#include <die.h> +#include <stdlib.h> +#include <unistd.h> +#include <arch/cache.h> +#include <arch/virtual.h> +#include <arch/io.h> + +unsigned long virtual_offset = 0; +extern char _end[]; diff --git a/payloads/libpayload/bin/lpgcc b/payloads/libpayload/bin/lpgcc index b3ef342..2faf113 100755 --- a/payloads/libpayload/bin/lpgcc +++ b/payloads/libpayload/bin/lpgcc @@ -86,6 +86,12 @@ _ARCHEXTRA="" _ARCH=mips fi +if [ "$CONFIG_LP_ARCH_RISCV" = "y" ]; then + _ARCHINCDIR=$_INCDIR/riscv + _ARCHLIBDIR=$_LIBDIR/riscv + _ARCHEXTRA="" + _ARCH=riscv +fi if [ "$CONFIG_LP_ARCH_X86" = "y" ]; then _ARCHINCDIR=$_INCDIR/x86 _ARCHLIBDIR=$_LIBDIR/x86 diff --git a/payloads/libpayload/configs/config.riscv b/payloads/libpayload/configs/config.riscv new file mode 100644 index 0000000..7982b4a --- /dev/null +++ b/payloads/libpayload/configs/config.riscv @@ -0,0 +1,81 @@ +# +# Automatically generated file; DO NOT EDIT. +# Libpayload Configuration +# + +# +# Generic Options +# +# CONFIG_LP_GPL is not set +# CONFIG_LP_EXPERIMENTAL is not set +# CONFIG_LP_DEVELOPER is not set +# CONFIG_LP_CHROMEOS is not set +CONFIG_LP_COMPILER_GCC=y +# CONFIG_LP_COMPILER_LLVM_CLANG is not set +# CONFIG_LP_MEMMAP_RAM_ONLY is not set + +# +# Architecture Options +# +# CONFIG_LP_ARCH_ARM is not set +# CONFIG_LP_ARCH_X86 is not set +# CONFIG_LP_ARCH_ARM64 is not set +# CONFIG_LP_ARCH_MIPS is not set +CONFIG_LP_ARCH_RISCV=y +CONFIG_LP_HEAP_SIZE=131072 +CONFIG_LP_STACK_SIZE=16384 +CONFIG_LP_BASE_ADDRESS=0x80100000 + +# +# Standard Libraries +# +CONFIG_LP_LIBC=y +# CONFIG_LP_CURSES is not set +CONFIG_LP_CBFS=y +CONFIG_LP_LZMA=y +CONFIG_LP_LZ4=y + +# +# Console Options +# +# CONFIG_LP_SKIP_CONSOLE_INIT is not set +CONFIG_LP_CBMEM_CONSOLE=y +# CONFIG_LP_SERIAL_CONSOLE is not set +CONFIG_LP_VIDEO_CONSOLE=y +# CONFIG_LP_COREBOOT_VIDEO_CONSOLE is not set +# CONFIG_LP_PC_I8042 is not set +# CONFIG_LP_PC_MOUSE is not set +# CONFIG_LP_PC_KEYBOARD is not set + +# +# Drivers +# +# CONFIG_LP_MOUSE_CURSOR is not set +# CONFIG_LP_RTC_PORT_EXTENDED_VIA is not set +CONFIG_LP_TIMER_NONE=y +# CONFIG_LP_TIMER_MCT is not set +# CONFIG_LP_TIMER_TEGRA_1US is not set +# CONFIG_LP_TIMER_IPQ806X is not set +# CONFIG_LP_TIMER_ARMADA38X is not set +# CONFIG_LP_TIMER_IPQ40XX is not set +# CONFIG_LP_TIMER_ARM64_ARCH is not set +# CONFIG_LP_TIMER_RK3288 is not set +# CONFIG_LP_TIMER_RK3399 is not set +# CONFIG_LP_TIMER_CYGNUS is not set +# CONFIG_LP_TIMER_IMG_PISTACHIO is not set +# CONFIG_LP_TIMER_MTK is not set +# CONFIG_LP_TIMER_MVMAP2315 is not set +CONFIG_LP_TIMER_GENERIC_HZ=100000 +CONFIG_LP_TIMER_GENERIC_REG=0x0 +CONFIG_LP_TIMER_GENERIC_HIGH_REG=0x0 +CONFIG_LP_STORAGE=y +# CONFIG_LP_STORAGE_64BIT_LBA is not set +CONFIG_LP_STORAGE_ATA=y +CONFIG_LP_STORAGE_ATAPI=y +# CONFIG_LP_USB is not set +# CONFIG_LP_USB_GEN_HUB is not set +# CONFIG_LP_UDC is not set +# CONFIG_LP_BIG_ENDIAN is not set +CONFIG_LP_LITTLE_ENDIAN=y +# CONFIG_LP_IO_ADDRESS_SPACE is not set +CONFIG_LP_ARCH_SPECIFIC_OPTIONS=y diff --git a/payloads/libpayload/configs/defconfig-riscv b/payloads/libpayload/configs/defconfig-riscv new file mode 100644 index 0000000..2ce2bc5 --- /dev/null +++ b/payloads/libpayload/configs/defconfig-riscv @@ -0,0 +1,3 @@ +CONFIG_LP_ARCH_RISCV=y +CONFIG_LP_TINYCURSES=n +CONFIG_LP_USB=n diff --git a/payloads/libpayload/include/riscv/arch/asm.h b/payloads/libpayload/include/riscv/arch/asm.h new file mode 100644 index 0000000..842fb0d --- /dev/null +++ b/payloads/libpayload/include/riscv/arch/asm.h @@ -0,0 +1,29 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + */ + +#ifndef __RISCV_ASM_H +#define __RISCV_ASM_H + +# define RISCV(x...) x +# define W(instr) instr + +#define ALIGN .align 2 + +#define ENDPROC(name) \ + .type name, %function; \ + END(name) + +#define ENTRY(name) \ + .section .text.name, "ax", %progbits; \ + .global name; \ + ALIGN; \ + name: + +#define END(name) \ + .size name, .-name + +#endif /* __RISCV_ASM_H */ diff --git a/payloads/libpayload/include/riscv/arch/barrier.h b/payloads/libpayload/include/riscv/arch/barrier.h new file mode 100644 index 0000000..0b55df6 --- /dev/null +++ b/payloads/libpayload/include/riscv/arch/barrier.h @@ -0,0 +1,61 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Google Inc. + * Copyright (C) 2003-2004 Olivier Houchard + * Copyright (C) 1994-1997 Mark Brinicombe + * Copyright (C) 1994 Brini + * All rights reserved. + * + * This code is derived from software written for Brini by Mark Brinicombe + * + * 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_BARRIER_H_ +#define __ARCH_BARRIER_H__ + +#include <arch/cache.h> + +/* + * Description of different memory barriers introduced: + * + * Memory barrier(mb) - Guarantees that all memory accesses specified before the + * barrier will happen before all memory accesses specified after the barrier + * + * Read memory barrier (rmb) - Guarantees that all read memory accesses + * specified before the barrier will happen before all read memory accesses + * specified after the barrier + * + * Write memory barrier (wmb) - Guarantees that all write memory accesses + * specified before the barrier will happen before all write memory accesses + * specified after the barrier + */ + +#define mb() +#define rmb() +#define wmb() + +#endif /* __ARCH_BARRIER_H__ */ diff --git a/payloads/libpayload/include/riscv/arch/cache.h b/payloads/libpayload/include/riscv/arch/cache.h new file mode 100644 index 0000000..820bee9 --- /dev/null +++ b/payloads/libpayload/include/riscv/arch/cache.h @@ -0,0 +1,83 @@ +/* + * 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 RISCV + */ + +#ifndef RISCV_CACHE_H +#define RISCV_CACHE_H + +#include <stddef.h> +#include <stdint.h> + +/* + * Cache maintenance API + */ + +/* dcache clean and invalidate all (on current level given by CCSELR) */ +void dcache_clean_invalidate_all(void); + +/* dcache clean by virtual address to PoC */ +void dcache_clean_by_mva(void const *addr, size_t len); + +/* dcache clean and invalidate by virtual address to PoC */ +void dcache_clean_invalidate_by_mva(void const *addr, size_t len); + +/* dcache invalidate by 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); + +/* returns number of bytes per cache line */ +unsigned int dcache_line_bytes(void); + +/* dcache and MMU disable */ +void dcache_mmu_disable(void); + +/* dcache and MMU enable */ +void dcache_mmu_enable(void); + +/* perform all icache/dcache maintenance needed after loading new code */ +void cache_sync_instructions(void); + +/* Ensure that loaded program segment is synced back from cache to PoC */ +void arch_program_segment_loaded(void const *addr, size_t len); + +/* tlb invalidate all */ +void tlb_invalidate_all(void); + +/* Invalidate all of the instruction cache for PE to PoU. */ +static inline void icache_invalidate_all(void) +{ + return; +} + +#endif /* RISCV_CACHE_H */ diff --git a/payloads/libpayload/include/riscv/arch/io.h b/payloads/libpayload/include/riscv/arch/io.h new file mode 100644 index 0000000..8413b61 --- /dev/null +++ b/payloads/libpayload/include/riscv/arch/io.h @@ -0,0 +1,106 @@ +/* + * 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> +//#include <arch/lib_helpers.h> + +/* + * readb/w/l writeb/w/l are deprecated. use read8/16/32 and write8/16/32 + * instead for future development. + * + * TODO: make the existing code use read8/16/32 and write8/16/32 then remove + * readb/w/l and writeb/w/l. + */ + +static inline uint8_t readb(volatile const void *_a) +{ + return *(volatile const uint8_t *)_a; +} + +static inline uint16_t readw(volatile const void *_a) +{ + return *(volatile const uint16_t *)_a; +} + +static inline uint32_t readl(volatile const void *_a) +{ + return *(volatile const uint32_t *)_a; +} + +static inline void writeb(uint8_t _v, volatile void *_a) +{ + *(volatile uint8_t *)_a = _v; +} + +static inline void writew(uint16_t _v, volatile void *_a) +{ + *(volatile uint16_t *)_a = _v; +} + +static inline void writel(uint32_t _v, volatile void *_a) +{ + *(volatile uint32_t *)_a = _v; +} + +static inline uint8_t read8(const void *addr) +{ + return *(volatile uint8_t *)addr; +} + +static inline uint16_t read16(const void *addr) +{ + return *(volatile uint16_t *)addr; +} + +static inline uint32_t read32(const void *addr) +{ + return *(volatile uint32_t *)addr; +} + +static inline void write8(void *addr, uint8_t val) +{ + *(volatile uint8_t *)addr = val; +} + +static inline void write16(void *addr, uint16_t val) +{ + *(volatile uint16_t *)addr = val; +} + +static inline void write32(void *addr, uint32_t val) +{ + *(volatile uint32_t *)addr = val; +} + +#endif diff --git a/payloads/libpayload/include/riscv/arch/types.h b/payloads/libpayload/include/riscv/arch/types.h new file mode 100644 index 0000000..1bd815b --- /dev/null +++ b/payloads/libpayload/include/riscv/arch/types.h @@ -0,0 +1,60 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2007 Uwe Hermann <uwe(a)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/riscv/arch/virtual.h b/payloads/libpayload/include/riscv/arch/virtual.h new file mode 100644 index 0000000..dac3480 --- /dev/null +++ b/payloads/libpayload/include/riscv/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 -- To view, visit https://review.coreboot.org/c/coreboot/+/31356 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I91df02069a0f8fd8771f73de0e866e9cea05cded Gerrit-Change-Number: 31356 Gerrit-PatchSet: 1 Gerrit-Owner: Philipp Hug <philipp(a)hug.cx> Gerrit-Reviewer: Martin Roth <martinroth(a)google.com> Gerrit-Reviewer: Patrick Georgi <pgeorgi(a)google.com> Gerrit-Reviewer: Philipp Hug <philipp(a)hug.cx> Gerrit-MessageType: newchange

5 6

Change in ...coreboot[master]: configs: add debug config for Dell OptiPlex 7010
by Piotr Król (Code Review) 07 Aug '23

07 Aug '23

Piotr Król has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/30518 Change subject: configs: add debug config for Dell OptiPlex 7010 ...................................................................... configs: add debug config for Dell OptiPlex 7010 Signed-off-by: Piotr Król <piotr.krol(a)3mdeb.com> Change-Id: I3d90ecd98ca9df7de776797173229993fec25137 --- A configs/config.dell_optiplex_7010.debug 1 file changed, 2 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/18/30518/1 diff --git a/configs/config.dell_optiplex_7010.debug b/configs/config.dell_optiplex_7010.debug new file mode 100644 index 0000000..426e101 --- /dev/null +++ b/configs/config.dell_optiplex_7010.debug @@ -0,0 +1,2 @@ +CONFIG_VENDOR_DELL=y +CONFIG_CONSOLE_SPI_FLASH=y -- To view, visit https://review.coreboot.org/c/coreboot/+/30518 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I3d90ecd98ca9df7de776797173229993fec25137 Gerrit-Change-Number: 30518 Gerrit-PatchSet: 1 Gerrit-Owner: Piotr Król <piotr.krol(a)3mdeb.com> Gerrit-MessageType: newchange

2 1

Change in ...coreboot[master]: soc/intel/cannonlake: Adding Kconfig option to disable the eMMC contr...
by V Sowmya (Code Review) 07 Aug '23

07 Aug '23

V Sowmya has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/30614 Change subject: soc/intel/cannonlake: Adding Kconfig option to disable the eMMC controller ...................................................................... soc/intel/cannonlake: Adding Kconfig option to disable the eMMC controller This patch adds an Kconfig option to exclude the EMMC interface ACPI objects for cannonlake based platforms. BUG=b:120914069 BRANCH=none TEST=USE="-intel_mrc -bmpblk" emerge-hatch coreboot. Change-Id: I90c0230e845c8d02386b50b1100faf7064ecf8f6 Signed-off-by: V Sowmya <v.sowmya(a)intel.com> --- M src/soc/intel/cannonlake/Kconfig M src/soc/intel/cannonlake/acpi/scs.asl 2 files changed, 9 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/14/30614/1 diff --git a/src/soc/intel/cannonlake/Kconfig b/src/soc/intel/cannonlake/Kconfig index 9e007b6..121909a 100644 --- a/src/soc/intel/cannonlake/Kconfig +++ b/src/soc/intel/cannonlake/Kconfig @@ -208,6 +208,13 @@ default 4 if SOC_INTEL_CANNONLAKE_PCH_H default 6 +config EXCLUDE_EMMC_INTERFACE + bool + default n + help + If you set this option to n, it will not use EMMC controller. + + # Clock divider parameters for 115200 baud rate config SOC_INTEL_COMMON_LPSS_UART_CLK_M_VAL hex diff --git a/src/soc/intel/cannonlake/acpi/scs.asl b/src/soc/intel/cannonlake/acpi/scs.asl index 896fd77..29939be 100644 --- a/src/soc/intel/cannonlake/acpi/scs.asl +++ b/src/soc/intel/cannonlake/acpi/scs.asl @@ -27,6 +27,7 @@ ^PCRA (Arg0, 0x4820, 0x0) } +#if !IS_ENABLED(CONFIG_EXCLUDE_EMMC_INTERFACE) /* EMMC */ Device(PEMC) { Name(_ADR, 0x001A0000) @@ -77,6 +78,7 @@ } } } +#endif /* SD CARD */ Device (SDXC) -- To view, visit https://review.coreboot.org/c/coreboot/+/30614 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I90c0230e845c8d02386b50b1100faf7064ecf8f6 Gerrit-Change-Number: 30614 Gerrit-PatchSet: 1 Gerrit-Owner: V Sowmya <v.sowmya(a)intel.com> Gerrit-MessageType: newchange

7 13

Change in ...coreboot[master]: mb/lenovo/x131e: devicetree updates
by James (Code Review) 07 Aug '23

07 Aug '23

James has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/31066 Change subject: mb/lenovo/x131e: devicetree updates ...................................................................... mb/lenovo/x131e: devicetree updates Enable the mSATA slot and WWAN detection (functionality untested). Change-Id: I4cfefb06556c9d69bc8e4a4f9d112246885c253a Signed-off-by: James Ye <jye836(a)gmail.com> --- M src/mainboard/lenovo/x131e/devicetree.cb 1 file changed, 8 insertions(+), 2 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/66/31066/1 diff --git a/src/mainboard/lenovo/x131e/devicetree.cb b/src/mainboard/lenovo/x131e/devicetree.cb index 4adc94b..3d0148f 100644 --- a/src/mainboard/lenovo/x131e/devicetree.cb +++ b/src/mainboard/lenovo/x131e/devicetree.cb @@ -51,8 +51,8 @@ register "gpi6_routing" = "2" register "gpi13_routing" = "2" - # Enable SATA ports - register "sata_port_map" = "0x1" + # Enable SATA ports 0 (2.5 inch) and 1 (mSATA) + register "sata_port_map" = "0x3" # Set max SATA speed to 6.0 Gb/s register "sata_interface_speed_support" = "0x3" @@ -131,6 +131,12 @@ register "eventd_enable" = "0xff" register "evente_enable" = "0xff" register "eventf_enable" = "0xff" + + register "has_bdc_detection" = "0" + + register "has_wwan_detection" = "1" + register "wwan_gpio_num" = "68" + register "wwan_gpio_lvl" = "0" end end device pci 1f.2 on end # SATA Controller 1 -- To view, visit https://review.coreboot.org/c/coreboot/+/31066 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I4cfefb06556c9d69bc8e4a4f9d112246885c253a Gerrit-Change-Number: 31066 Gerrit-PatchSet: 1 Gerrit-Owner: James <jye836(a)gmail.com> Gerrit-MessageType: newchange

4 7

Change in ...coreboot[master]: mb/lenovo/x131e: function key support
by James (Code Review) 07 Aug '23

07 Aug '23

James has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/31067 Change subject: mb/lenovo/x131e: function key support ...................................................................... mb/lenovo/x131e: function key support Enables function keys for X131e. The IT8518e EC of this board uses some different ACPI methods compared to the regular Lenovo H8. Add an option to use the alternative set of methods. Change-Id: Ib3a01f37a8b54889b55e92c501c9350e6c68bd57 Signed-off-by: James Ye <jye836(a)gmail.com> --- M src/ec/lenovo/h8/Kconfig M src/ec/lenovo/h8/acpi/ec.asl M src/mainboard/lenovo/x131e/Kconfig M src/mainboard/lenovo/x131e/Makefile.inc M src/mainboard/lenovo/x131e/devicetree.cb A src/mainboard/lenovo/x131e/ec.h M src/mainboard/lenovo/x131e/mainboard.c M src/mainboard/lenovo/x131e/romstage.c A src/mainboard/lenovo/x131e/smihandler.c 9 files changed, 146 insertions(+), 22 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/67/31067/1 diff --git a/src/ec/lenovo/h8/Kconfig b/src/ec/lenovo/h8/Kconfig index f9b0b14..3dab615 100644 --- a/src/ec/lenovo/h8/Kconfig +++ b/src/ec/lenovo/h8/Kconfig @@ -28,6 +28,12 @@ Disable BDC detection and assume bluetooth is installed. Required for bluetooth on wifi cards, as it's not possible to detect it in coreboot. +config H8_ALT_EC_QUERY + bool "Alternate ACPI EC query methods" + default n + help + Use alternative EC query methods for X131e + endif config H8_DOCK_EARLY_INIT diff --git a/src/ec/lenovo/h8/acpi/ec.asl b/src/ec/lenovo/h8/acpi/ec.asl index 327a2cf..7c96504 100644 --- a/src/ec/lenovo/h8/acpi/ec.asl +++ b/src/ec/lenovo/h8/acpi/ec.asl @@ -140,7 +140,11 @@ /* Sleep Button pressed */ Method(_Q13, 0, NotSerialized) { +#ifndef CONFIG_H8_ALT_EC_QUERY Notify(^SLPB, 0x80) +#else + ^HKEY.RHK(0x04) +#endif } /* Brightness up GPE */ @@ -217,9 +221,20 @@ Method (_Q17, 0, NotSerialized) { +#ifndef CONFIG_H8_ALT_EC_QUERY ^HKEY.RHK (0x08) +#else + BRIGHTNESS_DOWN() +#endif } +#ifdef CONFIG_H8_ALT_EC_QUERY + Method (_Q18, 0, NotSerialized) + { + BRIGHTNESS_UP() + } +#endif + Method (_Q66, 0, NotSerialized) { ^HKEY.RHK (0x0A) diff --git a/src/mainboard/lenovo/x131e/Kconfig b/src/mainboard/lenovo/x131e/Kconfig index 946b945..ee7a83f 100644 --- a/src/mainboard/lenovo/x131e/Kconfig +++ b/src/mainboard/lenovo/x131e/Kconfig @@ -8,6 +8,7 @@ select USE_NATIVE_RAMINIT select SOUTHBRIDGE_INTEL_C216 select EC_LENOVO_H8 + select H8_ALT_EC_QUERY select NO_UART_ON_SUPERIO select BOARD_ROMSIZE_KB_12288 select HAVE_ACPI_TABLES diff --git a/src/mainboard/lenovo/x131e/Makefile.inc b/src/mainboard/lenovo/x131e/Makefile.inc index 7a00cce..2dab950 100644 --- a/src/mainboard/lenovo/x131e/Makefile.inc +++ b/src/mainboard/lenovo/x131e/Makefile.inc @@ -13,6 +13,7 @@ ## GNU General Public License for more details. ## +smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c romstage-y += gpio.c ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads diff --git a/src/mainboard/lenovo/x131e/devicetree.cb b/src/mainboard/lenovo/x131e/devicetree.cb index 3d0148f..0a73010 100644 --- a/src/mainboard/lenovo/x131e/devicetree.cb +++ b/src/mainboard/lenovo/x131e/devicetree.cb @@ -47,7 +47,8 @@ chip southbridge/intel/bd82x6x # GPI routing - register "alt_gp_smi_en" = "0x0000" + register "alt_gp_smi_en" = "0x0002" + register "gpi1_routing" = "1" register "gpi6_routing" = "2" register "gpi13_routing" = "2" @@ -115,22 +116,10 @@ register "beepmask1" = "0x87" register "has_power_management_beeps" = "0" - register "event0_enable" = "0xff" - register "event1_enable" = "0xff" - register "event2_enable" = "0xff" - register "event3_enable" = "0xff" - register "event4_enable" = "0xff" - register "event5_enable" = "0xff" - register "event6_enable" = "0xff" - register "event7_enable" = "0xff" - register "event8_enable" = "0xff" - register "event9_enable" = "0xff" - register "eventa_enable" = "0xff" - register "eventb_enable" = "0xff" - register "eventc_enable" = "0xff" - register "eventd_enable" = "0xff" - register "evente_enable" = "0xff" - register "eventf_enable" = "0xff" + register "event2_enable" = "0xc8" # sleep, monitor, brightness down + register "event3_enable" = "0x01" # brightness up + register "eventc_enable" = "0x30" # airplane, camera + register "eventd_enable" = "0x04" # mic register "has_bdc_detection" = "0" diff --git a/src/mainboard/lenovo/x131e/ec.h b/src/mainboard/lenovo/x131e/ec.h new file mode 100644 index 0000000..4a731dc --- /dev/null +++ b/src/mainboard/lenovo/x131e/ec.h @@ -0,0 +1,26 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 The Chromium OS Authors. All rights reserved. + * Copyright (C) 2019 James Ye <jye836(a)gmail.com> + * + * 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. + */ + +#ifndef X131E_EC_H +#define X131E_EC_H + +#define GPE_EC_SCI 6 +#define GPE_EC_WAKE 13 + +#define EC_CMD_NOTIFY_ACPI_ENTER 0x86 +#define EC_CMD_NOTIFY_ACPI_EXIT 0x87 + +#endif // X131E_EC_H diff --git a/src/mainboard/lenovo/x131e/mainboard.c b/src/mainboard/lenovo/x131e/mainboard.c index 1342aca..9e6a7dd 100644 --- a/src/mainboard/lenovo/x131e/mainboard.c +++ b/src/mainboard/lenovo/x131e/mainboard.c @@ -13,9 +13,17 @@ * GNU General Public License for more details. */ +#include <arch/acpi.h> #include <device/device.h> #include <drivers/intel/gma/int15.h> +#include <ec/acpi/ec.h> #include <ec/lenovo/h8/h8.h> +#include "ec.h" + +void mainboard_suspend_resume(void) +{ + send_ec_command(EC_CMD_NOTIFY_ACPI_ENTER); +} static void mainboard_enable(struct device *dev) { diff --git a/src/mainboard/lenovo/x131e/romstage.c b/src/mainboard/lenovo/x131e/romstage.c index 43e0bd7..30df36f 100644 --- a/src/mainboard/lenovo/x131e/romstage.c +++ b/src/mainboard/lenovo/x131e/romstage.c @@ -26,11 +26,6 @@ /* Enable TPM, EC, PS/2 Keyboard/Mouse */ pci_write_config16(PCH_LPC_DEV, LPC_EN, CNF2_LPC_EN | CNF1_LPC_EN | MC_LPC_EN | KBC_LPC_EN); - - pci_write_config32(PCH_LPC_DEV, LPC_GEN1_DEC, 0x007c1611); - pci_write_config32(PCH_LPC_DEV, LPC_GEN2_DEC, 0x00040069); - pci_write_config32(PCH_LPC_DEV, LPC_GEN3_DEC, 0x000c0701); - pci_write_config32(PCH_LPC_DEV, LPC_GEN4_DEC, 0x000c06a1); } void mainboard_rcba_config(void) diff --git a/src/mainboard/lenovo/x131e/smihandler.c b/src/mainboard/lenovo/x131e/smihandler.c new file mode 100644 index 0000000..a634359 --- /dev/null +++ b/src/mainboard/lenovo/x131e/smihandler.c @@ -0,0 +1,83 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008-2009 coresystems GmbH + * Copyright (C) 2014 Vladimir Serbinenko + * Copyright (C) 2019 James Ye <jye836(a)gmail.com> + * + * 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. + */ + +#include <arch/io.h> +#include <console/console.h> +#include <cpu/x86/smm.h> +#include <ec/acpi/ec.h> +#include <ec/lenovo/h8/h8.h> +#include <southbridge/intel/bd82x6x/pch.h> +#include <southbridge/intel/common/pmutil.h> +#include "ec.h" + +static void mainboard_smi_handle_ec_sci(void) +{ + u8 status = ec_status(); + if (!(status & EC_SCI_EVT)) + return; + + u8 event = ec_query(); + printk(BIOS_DEBUG, "EC event %02x\n", event); +} + +void mainboard_smi_gpi(u32 gpi_sts) +{ + if (gpi_sts & (1 << GPE_EC_SCI)) + mainboard_smi_handle_ec_sci(); +} + +int mainboard_smi_apmc(u8 data) +{ + switch (data) { + case APM_CNT_ACPI_ENABLE: + send_ec_command(EC_CMD_NOTIFY_ACPI_ENTER); + /* use 0x1600/0x1604 to prevent races with userspace */ + ec_set_ports(0x1604, 0x1600); + /* route EC_SCI to SCI */ + gpi_route_interrupt(GPE_EC_SCI, GPI_IS_SCI); + /* discard all events, and enable attention */ + ec_write(0x80, 0x01); + break; + case APM_CNT_ACPI_DISABLE: + send_ec_command(EC_CMD_NOTIFY_ACPI_EXIT); + /* we have to use port 0x62/0x66, as 0x1600/0x1604 doesn't + provide a EC query function */ + ec_set_ports(EC_SC, EC_DATA); + /* route EC_SCI to SMI */ + gpi_route_interrupt(GPE_EC_SCI, GPI_IS_SMI); + /* discard all events, and enable attention */ + ec_write(0x80, 0x01); + break; + } + return 0; +} + +void mainboard_smi_sleep(u8 slp_typ) +{ + if (slp_typ == 3) { + u8 ec_wake = ec_read(0x32); + /* If EC wake events are enabled, enable wake on EC WAKE GPE. */ + if (ec_wake & 0x14) { + /* Redirect EC WAKE GPE to SCI. */ + gpi_route_interrupt(GPE_EC_WAKE, GPI_IS_SCI); + } + } + + //outb(0xe9, 0x64); // EC_KBD_CMD_MUTE + //ec_set_bit(0xbf, 4); // EC_WAKE_SRC_ENABLE, EC_LID_WAKE_ENABLE +} -- To view, visit https://review.coreboot.org/c/coreboot/+/31067 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Ib3a01f37a8b54889b55e92c501c9350e6c68bd57 Gerrit-Change-Number: 31067 Gerrit-PatchSet: 1 Gerrit-Owner: James <jye836(a)gmail.com> Gerrit-MessageType: newchange

5 14

Change in ...coreboot[master]: skylake: Force to use single channel
by Sumeet R Pawnikar (Code Review) 07 Aug '23

07 Aug '23

Sumeet R Pawnikar has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/31136 Change subject: skylake: Force to use single channel ...................................................................... skylake: Force to use single channel Change-Id: I5fea8bdb14922f57d05c1388025a458451035132 Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar(a)intel.com> --- M src/vendorcode/intel/fsp/fsp1_1/skylake/FspUpdVpd.h M src/vendorcode/intel/fsp/fsp2_0/denverton_ns/FspmUpd.h 2 files changed, 2 insertions(+), 2 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/36/31136/1 diff --git a/src/vendorcode/intel/fsp/fsp1_1/skylake/FspUpdVpd.h b/src/vendorcode/intel/fsp/fsp1_1/skylake/FspUpdVpd.h index fddc168..cfb336b 100644 --- a/src/vendorcode/intel/fsp/fsp1_1/skylake/FspUpdVpd.h +++ b/src/vendorcode/intel/fsp/fsp1_1/skylake/FspUpdVpd.h @@ -38,7 +38,7 @@ #define MRC_MAX_RCOMP 3 #define MRC_MAX_RCOMP_TARGETS 5 -#define MAX_CHANNELS_NUM 2 +#define MAX_CHANNELS_NUM 1 #define MAX_DIMMS_NUM 2 typedef struct { diff --git a/src/vendorcode/intel/fsp/fsp2_0/denverton_ns/FspmUpd.h b/src/vendorcode/intel/fsp/fsp2_0/denverton_ns/FspmUpd.h index 3aa74a0..b4ba865 100644 --- a/src/vendorcode/intel/fsp/fsp2_0/denverton_ns/FspmUpd.h +++ b/src/vendorcode/intel/fsp/fsp2_0/denverton_ns/FspmUpd.h @@ -37,7 +37,7 @@ #pragma pack(1) -#define MAX_CH 2 /* Maximum Number of Memory Channels */ +#define MAX_CH 1 /* Maximum Number of Memory Channels */ #define MAX_DIMM 2 /* Maximum Number of DIMMs PER Memory Channel */ #define MAX_SPD_BYTES 512 /* Maximum Number of SPD bytes */ -- To view, visit https://review.coreboot.org/c/coreboot/+/31136 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I5fea8bdb14922f57d05c1388025a458451035132 Gerrit-Change-Number: 31136 Gerrit-PatchSet: 1 Gerrit-Owner: Sumeet R Pawnikar <sumeet.r.pawnikar(a)intel.com> Gerrit-MessageType: newchange

6 8

Change in ...coreboot[master]: ec/quanta/it8518: Use ACPI EC code
by James (Code Review) 07 Aug '23

07 Aug '23

James has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/31382 Change subject: ec/quanta/it8518: Use ACPI EC code ...................................................................... ec/quanta/it8518: Use ACPI EC code ec/quanta/it8518 implements its own code for reading and writing the EC. As a result, it cannot be used with ec/acpi. ec/quanta/it8518 contains definitions that are useful for mb/thinkpad/x131e, however, x131e uses ec/acpi. This replaces functions and definitions in ec/quanta/it8518 with their equivalents in ec/acpi. TODO: test on google/stout Change-Id: I7bea7445f34817cef1602843bbded59230bb8d47 Signed-off-by: James Ye <jye836(a)gmail.com> --- M src/ec/quanta/it8518/Kconfig M src/ec/quanta/it8518/ec.c M src/ec/quanta/it8518/ec.h M src/mainboard/google/stout/chromeos.c M src/mainboard/google/stout/ec.c M src/mainboard/google/stout/mainboard.c M src/mainboard/google/stout/mainboard_smi.c M src/mainboard/google/stout/romstage.c 8 files changed, 17 insertions(+), 59 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/82/31382/1 diff --git a/src/ec/quanta/it8518/Kconfig b/src/ec/quanta/it8518/Kconfig index 24ac36f..caaccd5 100644 --- a/src/ec/quanta/it8518/Kconfig +++ b/src/ec/quanta/it8518/Kconfig @@ -1,4 +1,5 @@ config EC_QUANTA_IT8518 + select EC_ACPI bool help Interface to QUANTA IT8518 Embedded Controller. diff --git a/src/ec/quanta/it8518/ec.c b/src/ec/quanta/it8518/ec.c index e293f7c..a27e7b9 100644 --- a/src/ec/quanta/it8518/ec.c +++ b/src/ec/quanta/it8518/ec.c @@ -19,6 +19,7 @@ #include <delay.h> #include <device/device.h> #include <device/pnp.h> +#include <ec/acpi/ec.h> #include <pc80/keyboard.h> #include <stdlib.h> @@ -93,48 +94,16 @@ * These functions are for accessing the IT8518 device RAM space via 0x66/0x68 */ -u8 ec_read_ob(void) -{ - if (!output_buffer_full(EC_SC)) return 0; - return inb(EC_DATA); -} - -void ec_write_cmd(u8 cmd) -{ - if (!input_buffer_empty(EC_SC)) return; - outb(cmd, EC_SC); -} - -void ec_write_ib(u8 data) -{ - if (!input_buffer_empty(EC_SC)) return; - outb(data, EC_DATA); -} - -u8 ec_read(u16 addr) -{ - ec_write_cmd(RD_EC); - ec_write_ib(addr); - return ec_read_ob(); -} - -void ec_write(u16 addr, u8 data) -{ - ec_write_cmd(WR_EC); - ec_write_ib(addr); - ec_write_ib(data); -} - #ifndef __PRE_RAM__ u8 ec_it8518_get_event(void) { u8 cmd = 0; u8 status = inb(EC_SC); - if (status & SCI_EVT) { - ec_write_cmd(QR_EC); - cmd = ec_read_ob(); - } else if (status & SMI_EVT) { + if (status & EC_SCI_EVT) { + send_ec_command(QR_EC); + cmd = recv_ec_data(); + } else if (status & EC_SMI_EVT) { ec_kbc_write_cmd(EC_KBD_SMI_EVENT); cmd = ec_kbc_read_ob(); } diff --git a/src/ec/quanta/it8518/ec.h b/src/ec/quanta/it8518/ec.h index 6fca3b9..27f9137 100644 --- a/src/ec/quanta/it8518/ec.h +++ b/src/ec/quanta/it8518/ec.h @@ -43,17 +43,6 @@ void ec_kbc_write_cmd(u8 cmd); void ec_kbc_write_ib(u8 data); -// 62h/66h Command Interface -#define EC_DATA 0x62 -#define EC_SC 0x66 // Status & Control Register -#define SMI_EVT (1 << 6) // 1: SMI event was triggered -#define SCI_EVT (1 << 5) // 1: SCI event was triggered - -// EC Commands (defined in ec_function_spec v3.12) -#define RD_EC 0x80 -#define WR_EC 0x81 -#define QR_EC 0x84 - #define EC_CMD_EXIT_BOOT_BLOCK 0x85 #define EC_CMD_NOTIFY_ACPI_ENTER 0x86 #define EC_CMD_NOTIFY_ACPI_EXIT 0x87 @@ -63,13 +52,13 @@ #define EC_PERIPH_CNTL_3 0x0D #define EC_USB_S3_EN 0x26 #define EC_PERIPH_STAT_3 0x35 +#define EC_MBAT_STATUS 0x38 #define EC_THERM_0 0x78 #define EC_WAKE_SRC_ENABLE 0xBF #define EC_FW_VER 0xE8 // 2 Bytes #define EC_IF_MIN_VER 0xEB #define EC_STATUS_REG 0xEC #define EC_IF_MAJ_VER 0xEF -#define EC_MBAT_STATUS 0x0138 // EC 0.83b added status bits: @@ -81,12 +70,6 @@ // EC 0.86a added enable bit: #define EC_LID_WAKE_ENABLE 0x4 -u8 ec_read_ob(void); -void ec_write_cmd(u8 cmd); -void ec_write_ib(u8 data); - -u8 ec_read(u16 addr); -void ec_write(u16 addr, u8 data); u8 ec_it8518_get_event(void); void ec_it8518_enable_wake_events(void); diff --git a/src/mainboard/google/stout/chromeos.c b/src/mainboard/google/stout/chromeos.c index 5301d30..f7f54c1 100644 --- a/src/mainboard/google/stout/chromeos.c +++ b/src/mainboard/google/stout/chromeos.c @@ -24,6 +24,7 @@ #include <southbridge/intel/common/gpio.h> #include <vendorcode/google/chromeos/chromeos.h> #include "ec.h" +#include <ec/acpi/ec.h> #include <ec/quanta/it8518/ec.h> #ifndef __PRE_RAM__ diff --git a/src/mainboard/google/stout/ec.c b/src/mainboard/google/stout/ec.c index 229f919..11cdc2a 100644 --- a/src/mainboard/google/stout/ec.c +++ b/src/mainboard/google/stout/ec.c @@ -18,6 +18,7 @@ #include <bootmode.h> #include <types.h> #include <console/console.h> +#include <ec/acpi/ec.h> #include <ec/quanta/it8518/ec.h> #include <device/device.h> #include <device/pci.h> diff --git a/src/mainboard/google/stout/mainboard.c b/src/mainboard/google/stout/mainboard.c index b63083f..63cc67b 100644 --- a/src/mainboard/google/stout/mainboard.c +++ b/src/mainboard/google/stout/mainboard.c @@ -29,13 +29,14 @@ #include <southbridge/intel/bd82x6x/pch.h> #include <smbios.h> #include <device/pci.h> +#include <ec/acpi/ec.h> #include <ec/quanta/it8518/ec.h> #include <vendorcode/google/chromeos/chromeos.h> void mainboard_suspend_resume(void) { /* Stout EC needs to be put back in ACPI mode */ - ec_write_cmd(EC_CMD_NOTIFY_ACPI_ENTER); + send_ec_command(EC_CMD_NOTIFY_ACPI_ENTER); } diff --git a/src/mainboard/google/stout/mainboard_smi.c b/src/mainboard/google/stout/mainboard_smi.c index 6a51645..27eae19 100644 --- a/src/mainboard/google/stout/mainboard_smi.c +++ b/src/mainboard/google/stout/mainboard_smi.c @@ -24,6 +24,7 @@ #include <cpu/intel/model_206ax/model_206ax.h> /* Include EC functions */ +#include <ec/acpi/ec.h> #include <ec/quanta/it8518/ec.h> #include "ec.h" @@ -96,13 +97,13 @@ /* * TODO(kimarie) Clear all pending events and enable SCI. */ - ec_write_cmd(EC_CMD_NOTIFY_ACPI_ENTER); + send_ec_command(EC_CMD_NOTIFY_ACPI_ENTER); break; case APMC_ACPI_DIS: /* * TODO(kimarie) Clear all pending events and enable SMI. */ - ec_write_cmd(EC_CMD_NOTIFY_ACPI_EXIT); + send_ec_command(EC_CMD_NOTIFY_ACPI_EXIT); break; } return 0; diff --git a/src/mainboard/google/stout/romstage.c b/src/mainboard/google/stout/romstage.c index d212951..66eb953 100644 --- a/src/mainboard/google/stout/romstage.c +++ b/src/mainboard/google/stout/romstage.c @@ -29,6 +29,7 @@ #include <southbridge/intel/common/gpio.h> #include <halt.h> #include <bootmode.h> +#include <ec/acpi/ec.h> #include <ec/quanta/it8518/ec.h> #include "ec.h" #include "onboard.h" @@ -121,12 +122,12 @@ * Tell EC to exit RO mode */ printk(BIOS_DEBUG, "EC will exit RO mode and boot normally\n"); - ec_write_cmd(EC_CMD_EXIT_BOOT_BLOCK); + send_ec_command(EC_CMD_EXIT_BOOT_BLOCK); die("wait for ec to reset"); } } else { printk(BIOS_DEBUG, "EC Warm Boot Detected\n"); - ec_write_cmd(EC_CMD_WARM_RESET); + send_ec_command(EC_CMD_WARM_RESET); } } -- To view, visit https://review.coreboot.org/c/coreboot/+/31382 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I7bea7445f34817cef1602843bbded59230bb8d47 Gerrit-Change-Number: 31382 Gerrit-PatchSet: 1 Gerrit-Owner: James <jye836(a)gmail.com> Gerrit-MessageType: newchange

4 9

Change in ...coreboot[master]: Patch SSDTs into qemu, and add VPD area to the fmap for q35 as a proo...
by John Looney (Code Review) 07 Aug '23

07 Aug '23

John Looney has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/32087 Change subject: Patch SSDTs into qemu, and add VPD area to the fmap for q35 as a proof of concept ...................................................................... Patch SSDTs into qemu, and add VPD area to the fmap for q35 as a proof of concept Signed-off-by: John Looney <john.looney(a)gmail.com> Change-Id: I4678b9adc8044a691c818527e2c16205f9b259e2 --- A src/mainboard/emulation/qemu-q35/board.fmd 1 file changed, 16 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/87/32087/1 diff --git a/src/mainboard/emulation/qemu-q35/board.fmd b/src/mainboard/emulation/qemu-q35/board.fmd new file mode 100644 index 0000000..a97e218 --- /dev/null +++ b/src/mainboard/emulation/qemu-q35/board.fmd @@ -0,0 +1,16 @@ +# layout for firmware residing at top of 4GB address space +# +-------------+ <-- 4GB - ROM_SIZE / start of flash +# | unspecified | +# +-------------+ <-- 4GB - BIOS_SIZE +# | FMAP | +# +-------------+ <-- 4GB - BIOS_SIZE + FMAP_SIZE +# | CBFS | +# +-------------+ <-- 4GB / end of flash +FLASH@4278190080 0x1000000 { + BIOS@0 0x1000000 { + FMAP@0 0x200 + RO_VPD@0x200 0x10000 + RW_VPD@0x10200 0x1000 + COREBOOT(CBFS)@0x11200 + } +} -- To view, visit https://review.coreboot.org/c/coreboot/+/32087 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I4678b9adc8044a691c818527e2c16205f9b259e2 Gerrit-Change-Number: 32087 Gerrit-PatchSet: 1 Gerrit-Owner: John Looney <john.looney(a)gmail.com> Gerrit-MessageType: newchange

6 14

Change in ...coreboot[master]: src/arch: This is an upgrade of SMBIOS to latest version 3.2
by Francois Toguo Fotso (Code Review) 07 Aug '23

07 Aug '23

Francois Toguo Fotso has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/32090 Change subject: src/arch: This is an upgrade of SMBIOS to latest version 3.2 ...................................................................... src/arch: This is an upgrade of SMBIOS to latest version 3.2 This is the second of 2 patches upgrading the SMBIOS interface to the latest 3.2 First patch is in mosys. Newer required fields are added to various types definitions BUG=NONE TEST=Boot to OS on GLK Sparky Change-Id: I1171c20ac85a2231d949d4ac1c3e3c544ba3e5ef Signed-off-by: Francois Toguo <francois.toguo.fotso(a)intel.com> --- M src/arch/x86/smbios.c M src/include/smbios.h 2 files changed, 71 insertions(+), 1 deletion(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/90/32090/1 diff --git a/src/arch/x86/smbios.c b/src/arch/x86/smbios.c index 8cb59df..b82780d 100644 --- a/src/arch/x86/smbios.c +++ b/src/arch/x86/smbios.c @@ -328,6 +328,17 @@ t->handle = *handle; *handle += 1; t->length = sizeof(struct smbios_type17) - 2; + t->memory_technology = MEMORY_TECHNOLOGY_UNKNOWN; + t->operating_mode_capability = MEMORY_OPERATING_MODE_CAP_UNKNOWN; + t->fw_version = 0xff; + t->manufacturer_id = dimm->mod_id; + t->product_id = 0x0000; + t->sub_ctrl_manufacturer_id = 0x0000; + t->sub_ctrl_product_id = 0x0000; + t->non_volatile_size = 0xffffffffffffffff; + t->volatile_size = 0xffffffffffffffff; + t->cache_size = 0xffffffffffffffff; + t->logical_size = 0xffffffffffffffff; return t->length + smbios_string_table_len(t->eos); } @@ -547,9 +558,31 @@ return len; } +u16 __weak smbios_processor_core_thread_count(u16 level_type) +{ + u16 count = 0; + int ecx = 0; + + for (ecx = 0 ; ecx < 255 ; ecx++) { + struct cpuid_result leaf_b; + leaf_b = cpuid_ext(0xb, ecx); + if ((cpuid_eax(0) < 0xb) || + !(leaf_b.eax | leaf_b.ebx | leaf_b.ecx | leaf_b.edx)) + return (((cpuid(1).ebx) >> 16) & 0x00ff); + + if ((leaf_b.ecx & 0xff00) == level_type) { + count = leaf_b.ebx & 0xffff; + break; + } + } + + return count; +} + static int smbios_write_type4(unsigned long *current, int handle) { struct cpuid_result res; + u16 core_count = 0, thread_count = 0; struct smbios_type4 *t = (struct smbios_type4 *)*current; int len = sizeof(struct smbios_type4); @@ -570,7 +603,15 @@ t->processor_version = smbios_processor_name(t->eos); t->processor_family = (res.eax > 0) ? 0x0c : 0x6; t->processor_type = 3; /* System Processor */ - t->core_count = (res.ebx >> 16) & 0xff; + + core_count = smbios_processor_core_thread_count(PROC_CORE_TYPE); + thread_count = smbios_processor_core_thread_count(PROC_THREAD_TYPE); + t->core_count2 = core_count; + t->core_count = (core_count > BYTE_LIMIT) ? 0xff : core_count; + t->thread_count2 = thread_count; + t->thread_count = (thread_count > BYTE_LIMIT) ? 0xff : core_count; + t->core_enabled2 = core_count; + t->l1_cache_handle = 0xffff; t->l2_cache_handle = 0xffff; t->l3_cache_handle = 0xffff; diff --git a/src/include/smbios.h b/src/include/smbios.h index af83bfe..e1d71be 100644 --- a/src/include/smbios.h +++ b/src/include/smbios.h @@ -52,6 +52,10 @@ u8 smbios_mainboard_feature_flags(void); const char *smbios_mainboard_location_in_chassis(void); u8 smbios_mainboard_enclosure_type(void); +u16 smbios_processor_core_thread_count(u16 level_type); +#ifdef CONFIG_MAINBOARD_FAMILY +const char *smbios_mainboard_family(void); +#endif #define BIOS_CHARACTERISTICS_PCI_SUPPORTED (1 << 7) #define BIOS_CHARACTERISTICS_PC_CARD (1 << 8) @@ -100,6 +104,11 @@ #define MEMORY_OPERATING_MODE_CAP_BYTE_ACCESS_PERSISTENT (1 << 4) #define MEMORY_OPERATING_MODE_CAP_BLOCK_ACCESS_PERSISTENT (1 << 5) +#define PROC_THREAD_TYPE 0x1 +#define PROC_CORE_TYPE 0x2 + +#define BYTE_LIMIT 255 + typedef enum { MEMORY_BUS_WIDTH_8 = 0, MEMORY_BUS_WIDTH_16 = 1, @@ -299,6 +308,7 @@ u8 location_in_chassis; u16 chassis_handle; u8 board_type; + u8 num_cont_obj_handles; u8 eos[2]; } __packed; @@ -390,6 +400,9 @@ u8 thread_count; u16 processor_characteristics; u16 processor_family2; + u16 core_count2; + u16 core_enabled2; + u16 thread_count2; u8 eos[2]; } __packed; @@ -401,6 +414,11 @@ u8 eos[2]; } __packed; +typedef struct { + u8 type; + u8 format_descriptor; +} log_type_descriptor; + struct smbios_type15 { u8 type; u8 length; @@ -471,6 +489,17 @@ u16 minimum_voltage; u16 maximum_voltage; u16 configured_voltage; + u8 memory_technology; + u16 operating_mode_capability; + u8 fw_version; + u16 manufacturer_id; + u16 product_id; + u16 sub_ctrl_manufacturer_id; + u16 sub_ctrl_product_id; + u64 non_volatile_size; + u64 volatile_size; + u64 cache_size; + u64 logical_size; u8 eos[2]; } __packed; -- To view, visit https://review.coreboot.org/c/coreboot/+/32090 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I1171c20ac85a2231d949d4ac1c3e3c544ba3e5ef Gerrit-Change-Number: 32090 Gerrit-PatchSet: 1 Gerrit-Owner: Francois Toguo Fotso <francois.toguo.fotso(a)intel.com> Gerrit-MessageType: newchange

8 52

Change in ...coreboot[master]: Documentation: Document PMH known registers
by Patrick Rudolph (Code Review) 07 Aug '23

07 Aug '23

Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/32253 Change subject: Documentation: Document PMH known registers ...................................................................... Documentation: Document PMH known registers Document what is known of Lenovo's PMH. Change-Id: I1891a6370123d9ee29d9e37e4b7b78b677343aed Signed-off-by: Patrick Rudolph <patrick.rudolph(a)9elements.com> --- M Documentation/mainboard/index.md A Documentation/mainboard/lenovo/pmh.md 2 files changed, 70 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/53/32253/1 diff --git a/Documentation/mainboard/index.md b/Documentation/mainboard/index.md index d94c23e..adfe877 100644 --- a/Documentation/mainboard/index.md +++ b/Documentation/mainboard/index.md @@ -54,6 +54,7 @@ - [Hardware Maintenance Manual of ThinkPads](lenovo/thinkpad_hmm.md) - [T4xx common](lenovo/t4xx_series.md) - [X2xx common](lenovo/x2xx_series.md) +- [PMH](lenovo/pmh.md) ### Sandy Bridge series diff --git a/Documentation/mainboard/lenovo/pmh.md b/Documentation/mainboard/lenovo/pmh.md new file mode 100644 index 0000000..06c595d --- /dev/null +++ b/Documentation/mainboard/lenovo/pmh.md @@ -0,0 +1,69 @@ +# Lenovo's Power Management Hub + +The *Power Management Hub* or *PMH* originally was a CPLD connected to the EC +to controll power rails and reset lines on the lenovo mainboard. +Starting with Ivy Bridge series, the CPLD was removed and an EC with higher +pincount does the same job. The IO space to configure the PMH is still +the same. + +## PMH access + +The PMH register can be accessed using the IO region: + + IO region address: 0x15e0 + IO region size: 16 + +The IO region has the following layout: + +```eval_rst ++-------------------+---------------------------------------+ +| Offset | Register function | ++-------------------+---------------------------------------+ +| 0xc | ADDR_L: Low address into PMH space | ++-------------------+---------------------------------------+ +| 0xd | ADDR_H: High address into PMH space | ++-------------------+---------------------------------------+ +| 0xe | DATA: The data to read/write in PMH | ++-------------------+---------------------------------------+ +``` + +The PMH register space allows to access 512bytes. +The following registers are known: + +```eval_rst ++-------------------+---------------------------------------+ +| Offset | Register function | ++-------------------+---------------------------------------+ +| 0x50 | BIT3: dGPU power enable | +| +---------------------------------------+ +| | BIT5: Backlight enable | +| +---------------------------------------+ +| | BIT7: dGPU !reset | ++-------------------+---------------------------------------+ +| 0x51 | BIT0: Trackpoint enable | +| +---------------------------------------+ +| | BIT2: Touchpad enable | ++-------------------+---------------------------------------+ +| 0x60 | BIT3: Dock event enable | ++-------------------+---------------------------------------+ +| 0x62 | BIT0: Ultrabay power enable | ++-------------------+---------------------------------------+ +| 0xc2 | ID: ID of PMH | ++-------------------+---------------------------------------+ +| 0xc3 | REV: Revision of PMH | ++-------------------+---------------------------------------+ +``` + +The revision at 0xc3 seems to increment over time: + +```eval_rst ++-------------------+---------------------------------------+ +| Revision | Mainboard generation | ++-------------------+---------------------------------------+ +| 4 | T520 and T420s | ++-------------------+---------------------------------------+ +| 5 | W530 | ++-------------------+---------------------------------------+ +| 6 | T470p | ++-------------------+---------------------------------------+ +``` -- To view, visit https://review.coreboot.org/c/coreboot/+/32253 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I1891a6370123d9ee29d9e37e4b7b78b677343aed Gerrit-Change-Number: 32253 Gerrit-PatchSet: 1 Gerrit-Owner: Patrick Rudolph <patrick.rudolph(a)9elements.com> Gerrit-MessageType: newchange

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