Marc Jones (marc.jones@se-eng.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/7225
-gerrit
commit 10e4ce79b3407affc95fcad4486aa6bdd2d2aa4c Author: Gabe Black gabeblack@google.com Date: Thu Apr 10 02:36:49 2014 -0700
libpayload: timer: Move the timer drivers from depthcharge to libpayload.
These drivers are needed right away and never really fit into depthcharge's driver model anyway.
CQ-DEPEND=CL:194064 BUG=None TEST=Built and booted nyan, link, and peach_pit and verified that timer values in cbmem were reasonable. Built for nyan_big, nyan_blaze and daisy. BRANCH=None
Original-Change-Id: Ia7953cfece57524262a6c7d6537082af7a00f4d6 Original-Signed-off-by: Gabe Black gabeblack@google.com Original-Reviewed-on: https://chromium-review.googlesource.com/194058 Original-Reviewed-by: Gabe Black gabeblack@chromium.org Original-Commit-Queue: Gabe Black gabeblack@chromium.org Original-Tested-by: Gabe Black gabeblack@chromium.org (cherry picked from commit f30a410f0a248c93bc34f5868af1596bf8ce3cdd) Signed-off-by: Marc Jones marc.jones@se-eng.com
Change-Id: I782d20f3cd63210a87c712643c7a53753f5ef301 --- payloads/libpayload/Config.in | 38 +++++++++ payloads/libpayload/arch/x86/timer.c | 10 --- payloads/libpayload/drivers/Makefile.inc | 5 ++ payloads/libpayload/drivers/timer/mct.c | 115 ++++++++++++++++++++++++++ payloads/libpayload/drivers/timer/rdtsc.c | 46 +++++++++++ payloads/libpayload/drivers/timer/tegra_1us.c | 41 +++++++++ 6 files changed, 245 insertions(+), 10 deletions(-)
diff --git a/payloads/libpayload/Config.in b/payloads/libpayload/Config.in index f47d105..466a4f2 100644 --- a/payloads/libpayload/Config.in +++ b/payloads/libpayload/Config.in @@ -327,6 +327,44 @@ config STORAGE_AHCI_ONLY_TESTED If this option is selected only AHCI controllers which are known to work will be used.
+config TIMER_RDTSC + bool + default y + depends on ARCH_X86 + +choice + prompt "Timer driver" + default TIMER_NONE + depends on !ARCH_X86 + +config TIMER_NONE + bool "None" + help + The timer driver is provided by the payload itself. + +config TIMER_MCT + bool "Exynos MCT" + +config TIMER_TEGRA_1US + bool "Tegra 1us" + +endchoice + +config TIMER_MCT_HZ + int "Exynos MCT frequency" + depends on TIMER_MCT + default 24000000 + +config TIMER_MCT_ADDRESS + hex "Exynos MCT base address" + depends on TIMER_MCT + default 0x101c0000 + +config TIMER_TEGRA_1US_ADDRESS + hex "Tegra u1s timer base address" + depends on TIMER_TEGRA_1US + default 0x60005010 + config USB bool "USB Support" default n diff --git a/payloads/libpayload/arch/x86/timer.c b/payloads/libpayload/arch/x86/timer.c index e0cefb8..bf0c30a 100644 --- a/payloads/libpayload/arch/x86/timer.c +++ b/payloads/libpayload/arch/x86/timer.c @@ -76,13 +76,3 @@ unsigned int get_cpu_speed(void)
return cpu_khz; } - -uint64_t timer_hz(void) -{ - return lib_sysinfo.cpu_khz * 1000; -} - -uint64_t timer_raw_value(void) -{ - return rdtsc(); -} diff --git a/payloads/libpayload/drivers/Makefile.inc b/payloads/libpayload/drivers/Makefile.inc index 5ce0a79..7212389 100644 --- a/payloads/libpayload/drivers/Makefile.inc +++ b/payloads/libpayload/drivers/Makefile.inc @@ -44,6 +44,11 @@ libc-$(CONFIG_LP_CBMEM_CONSOLE) += cbmem_console.c libc-$(CONFIG_LP_NVRAM) += nvram.c libc-$(CONFIG_LP_NVRAM) += options.c
+# Timer drivers +libc-$(CONFIG_LP_TIMER_MCT) += timer/mct.c +libc-$(CONFIG_LP_TIMER_RDTSC) += timer/rdtsc.c +libc-$(CONFIG_LP_TIMER_TEGRA_1US) += timer/tegra_1us.c + # Video console drivers libc-$(CONFIG_LP_VIDEO_CONSOLE) += video/video.c libc-$(CONFIG_LP_VGA_VIDEO_CONSOLE) += video/vga.c diff --git a/payloads/libpayload/drivers/timer/mct.c b/payloads/libpayload/drivers/timer/mct.c new file mode 100644 index 0000000..992643d --- /dev/null +++ b/payloads/libpayload/drivers/timer/mct.c @@ -0,0 +1,115 @@ +/* + * 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/io.h> +#include <libpayload.h> +#include <libpayload-config.h> +#include <stdint.h> + +#include "config.h" + +struct __attribute__((packed)) mct_regs +{ + uint32_t mct_cfg; + uint8_t reserved0[0xfc]; + uint32_t g_cnt_l; + uint32_t g_cnt_u; + uint8_t reserved1[0x8]; + uint32_t g_cnt_wstat; + uint8_t reserved2[0xec]; + uint32_t g_comp0_l; + uint32_t g_comp0_u; + uint32_t g_comp0_addr_incr; + uint8_t reserved3[0x4]; + uint32_t g_comp1_l; + uint32_t g_comp1_u; + uint32_t g_comp1_addr_incr; + uint8_t reserved4[0x4]; + uint32_t g_comp2_l; + uint32_t g_comp2_u; + uint32_t g_comp2_addr_incr; + uint8_t reserved5[0x4]; + uint32_t g_comp3_l; + uint32_t g_comp3_u; + uint32_t g_comp3_addr_incr; + uint8_t reserved6[0x4]; + uint32_t g_tcon; + uint32_t g_int_cstat; + uint32_t g_int_enb; + uint32_t g_wstat; + uint8_t reserved7[0xb0]; + uint32_t l0_tcntb; + uint32_t l0_tcnto; + uint32_t l0_icntb; + uint32_t l0_icnto; + uint32_t l0_frcntb; + uint32_t l0_frcnto; + uint8_t reserved8[0x8]; + uint32_t l0_tcon; + uint8_t reserved9[0xc]; + uint32_t l0_int_cstat; + uint32_t l0_int_enb; + uint8_t reserved10[0x8]; + uint32_t l0_wstat; + uint8_t reserved11[0xbc]; + uint32_t l1_tcntb; + uint32_t l1_tcnto; + uint32_t l1_icntb; + uint32_t l1_icnto; + uint32_t l1_frcntb; + uint32_t l1_frcnto; + uint8_t reserved12[0x8]; + uint32_t l1_tcon; + uint8_t reserved13[0xc]; + uint32_t l1_int_cstat; + uint32_t l1_int_enb; + uint8_t reserved14[0x8]; + uint32_t l1_wstat; +}; + +uint64_t timer_hz(void) +{ + return CONFIG_LP_TIMER_MCT_HZ; +} + +uint64_t timer_raw_value(void) +{ + static int enabled = 0; + + struct mct_regs * const mct = + (struct mct_regs *)(uintptr_t)CONFIG_LP_TIMER_MCT_ADDRESS; + + if (!enabled) { + writel(readl(&mct->g_tcon) | (0x1 << 8), &mct->g_tcon); + enabled = 1; + } + + uint64_t upper = readl(&mct->g_cnt_u); + uint64_t lower = readl(&mct->g_cnt_l); + + return (upper << 32) | lower; +} diff --git a/payloads/libpayload/drivers/timer/rdtsc.c b/payloads/libpayload/drivers/timer/rdtsc.c new file mode 100644 index 0000000..4a425a5 --- /dev/null +++ b/payloads/libpayload/drivers/timer/rdtsc.c @@ -0,0 +1,46 @@ +/* + * 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 x86/timer.c + * x86 specific timer routines + */ + +#include <libpayload.h> +#include <arch/rdtsc.h> + +uint64_t timer_hz(void) +{ + return lib_sysinfo.cpu_khz * 1000; +} + +uint64_t timer_raw_value(void) +{ + return rdtsc(); +} diff --git a/payloads/libpayload/drivers/timer/tegra_1us.c b/payloads/libpayload/drivers/timer/tegra_1us.c new file mode 100644 index 0000000..f227ad0 --- /dev/null +++ b/payloads/libpayload/drivers/timer/tegra_1us.c @@ -0,0 +1,41 @@ +/* + * 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 <libpayload.h> +#include <libpayload-config.h> + +static uint32_t * const tegra_tmrus = (void *)CONFIG_LP_TIMER_TEGRA_1US_ADDRESS; + +uint64_t timer_hz(void) +{ + return 1000 * 1000; +} + +uint64_t timer_raw_value(void) +{ + return readl(tegra_tmrus); +}