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| author | Hung-Te Lin <hungte@chromium.org> | 2019-10-23 14:20:53 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-10-24 07:45:55 +0000 |
| commit | 285975dbba8c7f3bbb9f9950e79a30bb983d5123 (patch) | |
| tree | 3ab0a82e2e0ee3a9e65d38711c1493d0cdc2cc80 | |
| parent | 7f1da07849c025982cda0e973588dc6305616cbe (diff) | |
| download | coreboot-285975dbba8c7f3bbb9f9950e79a30bb983d5123.tar.xz | |
soc/mediatek/mt8183: Force retraining memory if requested
To allow retraining memory without hotkey (for example in manufacturing
process), we want to enforce re-training when the recovery reason is set
to VB2_RECOVERY_TRAIN_AND_REBOOT (which can be done by running
"crossystem recovery_request=0xc4").
The special reason was created for X86 MRC cache, for ensuring RO
calibration data is filled (the underlying implementation was in vboot,
not coreboot); and on MT8183 we have only RW calibration, but it seems
totally fine to extend that for RW.
BRANCH=kukui
BUG=None
TEST=boots; crossystem recovery_reason=0xc4; reboot
Change-Id: Iaa5275f0e0eb90f6ab3a7d4579977a6655d59bd9
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36251
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Julius Werner <jwerner@chromium.org>
| -rw-r--r-- | src/soc/mediatek/mt8183/memory.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/soc/mediatek/mt8183/memory.c b/src/soc/mediatek/mt8183/memory.c index 2a4ebbdd1f..b9ed619a8e 100644 --- a/src/soc/mediatek/mt8183/memory.c +++ b/src/soc/mediatek/mt8183/memory.c @@ -169,7 +169,8 @@ void mt_mem_init(struct dramc_param_ops *dparam_ops) /* Load calibration params from flash and run fast calibration */ if (recovery_mode) { printk(BIOS_WARNING, "Skip loading cached calibration data\n"); - if (vboot_recovery_mode_memory_retrain()) { + if (vboot_recovery_mode_memory_retrain() || + vboot_check_recovery_request() == VB2_RECOVERY_TRAIN_AND_REBOOT) { printk(BIOS_WARNING, "Retrain memory in next boot\n"); /* Use 0xFF as erased flash data. */ memset(dparam, 0xff, sizeof(*dparam)); |