diff options
| author | David Wu <david_wu@quanta.corp-partner.google.com> | 2022-06-13 17:34:33 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-07-04 13:59:59 +0000 |
| commit | c6d0a4c1a854cb51907bcf67b829954624bcff08 (patch) | |
| tree | 8da02e1506b8feb16c5313e1fc00000e560d049f /src | |
| parent | d69158d17abc7eea129db10c8d7dc0ac412dc957 (diff) | |
mb/google/brya/var/kano: Disable PCH USB2 phy power gating
The patch disables PCH USB2 Phy power gating to prevent possible display
flicker issue for kano board. Please refer Intel doc#723158 for
more information.
BUG=None
TEST=Verify the build for kano board
Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Change-Id: I19430a68e1e847e71382781563200a4c88f37a59
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65107
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Ren Kuo <ren.kuo@quanta.corp-partner.google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/brya/variants/kano/overridetree.cb | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/kano/overridetree.cb b/src/mainboard/google/brya/variants/kano/overridetree.cb index ad0d0f7749..2a1511ce8d 100644 --- a/src/mainboard/google/brya/variants/kano/overridetree.cb +++ b/src/mainboard/google/brya/variants/kano/overridetree.cb @@ -19,6 +19,10 @@ end chip soc/intel/alderlake register "sagv" = "SaGv_Enabled" + # 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_dw1" = "GPP_D" |