diff options
| author | Joey Peng <joey.peng@lcfc.corp-partner.google.com> | 2022-08-10 09:04:26 +0800 |
|---|---|---|
| committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2022-08-12 17:15:43 +0000 |
| commit | ad6b27e9efa84d121b1d55db44fd35a8a52635cc (patch) | |
| tree | f95df7ac0e9e0dcdbdb7b24a78a205b42bbef3ba /src/mainboard/google/brya | |
| parent | 8610dd5022e0310ff36ed7132c574f65c001b1aa (diff) | |
mb/google/brya/var/taeko: Disable PCH USB2 phy power gating for taeko
The patch disables PCH USB2 Phy power gating to prevent possible display
flicker issue for taeko board. Please refer Intel doc#723158 for
more information.
BUG=b:241965786
TEST=Verify on taeko/tarlo boards.
Signed-off-by: Joey Peng <joey.peng@lcfc.corp-partner.google.com>
Change-Id: I03042906d5bea9b9010016adb98fbe68e2dc92f7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66582
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'src/mainboard/google/brya')
| -rw-r--r-- | src/mainboard/google/brya/variants/taeko/overridetree.cb | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/taeko/overridetree.cb b/src/mainboard/google/brya/variants/taeko/overridetree.cb index 9a4de9393c..30aa355866 100644 --- a/src/mainboard/google/brya/variants/taeko/overridetree.cb +++ b/src/mainboard/google/brya/variants/taeko/overridetree.cb @@ -44,6 +44,10 @@ fw_config end end chip soc/intel/alderlake + # As per Intel Advisory doc#723158, the change is required to prevent possible + # display flickering issue. + register "usb2_phy_sus_pg_disable" = "1" + # Acoustic settings register "acoustic_noise_mitigation" = "1" register "slow_slew_rate[VR_DOMAIN_IA]" = "SLEW_FAST_8" |