diff options
| author | Shelley Chen <shchen@google.com> | 2019-10-04 12:38:47 -0700 |
|---|---|---|
| committer | Shelley Chen <shchen@google.com> | 2019-10-07 23:12:51 +0000 |
| commit | 62e79d2c1ed6a52092b6912ccd477dd97b7c00e0 (patch) | |
| tree | c2cd8529ff27b8883f241fc672f049fee3210861 /src/mainboard | |
| parent | 4e07adbb86c6102d8fd677fbf33020983ce24532 (diff) | |
mb/google/hatch: Preserve MRC training data across FW update
Add PRESERVE to UNIFIED_MRC_CACHE so that we don't retain the memory
training data upon a FW update unless we need to. We have had users
complaining that a 15 second memory training upon update makes them
believe that their device is not booting, thus many of them hard
resetting before bootup.
BUG=b:142084637
BRANCH=None
TEST=flash RW_SECTION_A, RW_SECTION_B, and WP_RO sections and make
sure memory training doesn't occur on following bootup.
Change-Id: Ia5eb228b1f665a8371982544723dab3dfc40d401
Signed-off-by: Shelley Chen <shchen@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35803
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/hatch/chromeos.fmd | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mainboard/google/hatch/chromeos.fmd b/src/mainboard/google/hatch/chromeos.fmd index 393ac808b5..45dbc81716 100644 --- a/src/mainboard/google/hatch/chromeos.fmd +++ b/src/mainboard/google/hatch/chromeos.fmd @@ -19,7 +19,7 @@ FLASH@0xfe000000 0x2000000 { RW_FWID_B@0x3dffc0 0x40 } RW_MISC@0x17c0000 0x40000 { - UNIFIED_MRC_CACHE@0x0 0x30000 { + UNIFIED_MRC_CACHE(PRESERVE)@0x0 0x30000 { RECOVERY_MRC_CACHE@0x0 0x10000 RW_MRC_CACHE@0x10000 0x20000 } |