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mb/google/brask: Disable PCH USB2 phy power gating for brask 

The patch disables PCH USB2 Phy power gating to prevent possible display
flicker issue for moli board. Please refer Intel doc#723158 for
more information.

BUG=b:257415959
TEST=Verify the build for brask board

Change-Id: I518e90e9032e8f2186300b6b907cc9d84a1682e4
Signed-off-by: Ricky Chang <rickytlchang@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69272
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Zhuohao Lee <zhuohao@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
This commit is contained in:
Ricky Chang 2022-11-04 13:22:35 +00:00 committed by Felix Held
parent c8b9608154
commit feab4a4dff
1 changed files with 3 additions and 0 deletions
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3
src/mainboard/google/brya/variants/baseboard/brask/devicetree.cb
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@ -1,4 +1,7 @@
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"
# GPE configuration
register "pmc_gpe0_dw0" = "GPP_A"