From afaa3d0356d5a518442701875505901e5806bb61 Mon Sep 17 00:00:00 2001 From: Shelley Chen Date: Tue, 6 Oct 2020 15:50:21 -0700 Subject: [PATCH] trogdor: Modify DDR training to use mrc_cache Currently, trogdor devices have a section RO_DDR_TRAINING that is used to store memory training data. Changing so that we reuse the same mrc_cache API as x86 platforms. This requires renaming RW_DDR_TRAINING to RW_MRC_CACHE and removing RO_DDR_TRAINING in the fmap table. BUG=b:150502246 BRANCH=None TEST=FW_NAME="lazor" emerge-trogdor coreboot chromeos-bootimage Make sure that first boot after flashing does memory training and next boot does not. Boot into recovery two consecutive times and make sure memory training occurs on both boots. Change-Id: I16d429119563707123d538738348c7c4985b7b52 Signed-off-by: Shelley Chen Reviewed-on: https://review.coreboot.org/c/coreboot/+/46111 Tested-by: build bot (Jenkins) Reviewed-by: Julius Werner --- src/lib/Makefile.inc | 1 + src/mainboard/google/trogdor/chromeos.fmd | 7 ++-- .../common/include/soc/qclib_common.h | 1 - src/soc/qualcomm/common/qclib.c | 41 ++++++++++++++----- src/soc/qualcomm/sc7180/Kconfig | 2 + src/soc/qualcomm/sdm845/Kconfig | 2 + 6 files changed, 39 insertions(+), 15 deletions(-) diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc index ce57f51c2f..c228f2a9f4 100644 --- a/src/lib/Makefile.inc +++ b/src/lib/Makefile.inc @@ -100,6 +100,7 @@ ramstage-y += romstage_handoff.c romstage-y += romstage_handoff.c romstage-y += selfboot.c romstage-y += stack.c +romstage-y += rtc.c ramstage-y += rtc.c romstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c diff --git a/src/mainboard/google/trogdor/chromeos.fmd b/src/mainboard/google/trogdor/chromeos.fmd index 1801d34318..d5324eee49 100644 --- a/src/mainboard/google/trogdor/chromeos.fmd +++ b/src/mainboard/google/trogdor/chromeos.fmd @@ -2,20 +2,19 @@ FLASH@0x0 8M { WP_RO 4M { - RO_SECTION 0x3c4000 { + RO_SECTION 0x3e4000 { BOOTBLOCK 96K COREBOOT(CBFS) - FMAP@0x3c0000 0x1000 + FMAP@0x3e0000 0x1000 GBB 0x2f00 RO_FRID 0x100 } RO_VPD(PRESERVE) - RO_DDR_TRAINING(PRESERVE) 8K } RW_VPD(PRESERVE) 32K RW_NVRAM(PRESERVE) 16K - RW_DDR_TRAINING(PRESERVE) 8K + RW_MRC_CACHE(PRESERVE) 8K RW_ELOG(PRESERVE) 4K RW_SHARED 4K { SHARED_DATA diff --git a/src/soc/qualcomm/common/include/soc/qclib_common.h b/src/soc/qualcomm/common/include/soc/qclib_common.h index e8dc499fb6..c906ef2f73 100644 --- a/src/soc/qualcomm/common/include/soc/qclib_common.h +++ b/src/soc/qualcomm/common/include/soc/qclib_common.h @@ -11,7 +11,6 @@ #define QCLIB_TE_NAME_LENGTH 24 /* FMAP_REGION names */ -#define QCLIB_FR_DDR_TRAINING_DATA "RO_DDR_TRAINING" #define QCLIB_FR_LIMITS_CFG_DATA "RO_LIMITS_CFG" /* TE_NAME (table entry name) */ diff --git a/src/soc/qualcomm/common/qclib.c b/src/soc/qualcomm/common/qclib.c index d06cb429eb..d4796a2e7c 100644 --- a/src/soc/qualcomm/common/qclib.c +++ b/src/soc/qualcomm/common/qclib.c @@ -3,12 +3,14 @@ #include #include #include +#include #include #include #include #include #include #include +#include #include #include #include @@ -16,6 +18,8 @@ #include #include +#define QCLIB_VERSION 0 + struct qclib_cb_if_table qclib_cb_if_table = { .magic = QCLIB_MAGIC_NUMBER, .version = QCLIB_INTERFACE_VERSION, @@ -70,9 +74,16 @@ static void write_table_entry(struct qclib_cb_if_table_entry *te) } else if (!strncmp(QCLIB_TE_DDR_TRAINING_DATA, te->name, sizeof(te->name))) { - - assert(fmap_overwrite_area(QCLIB_FR_DDR_TRAINING_DATA, - (const void *)te->blob_address, te->size)); + /* + * Don't store training data if we're in recovery mode + * because we always want to retrain due to + * possibility of RW training data possibly being + * updated to a different format. + */ + if (vboot_recovery_mode_enabled()) + return; + assert(!mrc_cache_stash_data(MRC_TRAINING_DATA, QCLIB_VERSION, + (const void *)te->blob_address, te->size)); } else if (!strncmp(QCLIB_TE_LIMITS_CFG_DATA, te->name, sizeof(te->name))) { @@ -112,7 +123,7 @@ __weak int qclib_soc_blob_load(void) { return 0; } void qclib_load_and_run(void) { int i; - ssize_t ssize; + ssize_t data_size; struct mmu_context pre_qclib_mmu_context; /* zero ddr_information SRAM region, needs new data each boot */ @@ -127,13 +138,23 @@ void qclib_load_and_run(void) /* output area, QCLib fills in DDR details */ qclib_add_if_table_entry(QCLIB_TE_DDR_INFORMATION, NULL, 0, 0); - /* Attempt to load DDR Training Blob */ - ssize = fmap_read_area(QCLIB_FR_DDR_TRAINING_DATA, _ddr_training, - REGION_SIZE(ddr_training)); - if (ssize < 0) - goto fail; + /* + * We never want to use training data when booting into + * recovery mode. + */ + if (vboot_recovery_mode_enabled()) { + memset(_ddr_training, 0, REGION_SIZE(ddr_training)); + } else { + /* Attempt to load DDR Training Blob */ + data_size = mrc_cache_load_current(MRC_TRAINING_DATA, QCLIB_VERSION, + _ddr_training, REGION_SIZE(ddr_training)); + if (data_size < 0) { + printk(BIOS_ERR, "Unable to load previous training data.\n"); + memset(_ddr_training, 0, REGION_SIZE(ddr_training)); + } + } qclib_add_if_table_entry(QCLIB_TE_DDR_TRAINING_DATA, - _ddr_training, ssize, 0); + _ddr_training, REGION_SIZE(ddr_training), 0); /* hook for SoC specific binary blob loads */ if (qclib_soc_blob_load()) { diff --git a/src/soc/qualcomm/sc7180/Kconfig b/src/soc/qualcomm/sc7180/Kconfig index d543ef5134..570b68a119 100644 --- a/src/soc/qualcomm/sc7180/Kconfig +++ b/src/soc/qualcomm/sc7180/Kconfig @@ -17,6 +17,7 @@ config SOC_QUALCOMM_SC7180 select MAINBOARD_HAS_NATIVE_VGA_INIT select MAINBOARD_FORCE_NATIVE_VGA_INIT select HAVE_LINEAR_FRAMEBUFFER + select CACHE_MRC_SETTINGS if SOC_QUALCOMM_SC7180 @@ -29,6 +30,7 @@ config VBOOT select VBOOT_RETURN_FROM_VERSTAGE select VBOOT_MUST_REQUEST_DISPLAY select VBOOT_STARTS_IN_BOOTBLOCK + select MRC_CLEAR_NORMAL_CACHE_ON_RECOVERY_RETRAIN config SC7180_QSPI bool diff --git a/src/soc/qualcomm/sdm845/Kconfig b/src/soc/qualcomm/sdm845/Kconfig index c93ec6c1bb..2b9bef3bd5 100644 --- a/src/soc/qualcomm/sdm845/Kconfig +++ b/src/soc/qualcomm/sdm845/Kconfig @@ -9,6 +9,7 @@ config SOC_QUALCOMM_SDM845 select GENERIC_GPIO_LIB select ARM64_USE_ARCH_TIMER select SOC_QUALCOMM_COMMON + select CACHE_MRC_SETTINGS if SOC_QUALCOMM_SDM845 @@ -21,6 +22,7 @@ config VBOOT select VBOOT_RETURN_FROM_VERSTAGE select VBOOT_MUST_REQUEST_DISPLAY select VBOOT_STARTS_IN_BOOTBLOCK + select MRC_CLEAR_NORMAL_CACHE_ON_RECOVERY_RETRAIN config SDM845_QSPI bool