diff options
| author | Terry Chen <terry_chen@wistron.corp-partner.google.com> | 2022-07-01 13:46:26 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-07-04 14:06:16 +0000 |
| commit | 23ddcb0bc4a952e773cf62fefc499bbbe490f7af (patch) | |
| tree | ac016ee221449f3a6823e826be764f404c91fc6a /src/mainboard/google | |
| parent | bc8ab7bf6e25cd028f4f49f794ad00edbae4d5fb (diff) | |
mb/google/brya: Disable PCH USB2 phy power gating for crota
The patch disables PCH USB2 Phy power gating to prevent possible display
flicker issue for primus board. Please refer Intel doc#723158 for
more information.
BUG=b:237725329
TEST=Verify the build for crota board
Signed-off-by: Terry Chen <terry_chen@wistron.corp-partner.google.com>
Change-Id: I6dde74c098ba57b7cd66ce7b9ee941b8961ad20c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65594
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Cyan Yang <cyan.yang@intel.corp-partner.google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'src/mainboard/google')
| -rw-r--r-- | src/mainboard/google/brya/variants/crota/overridetree.cb | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/crota/overridetree.cb b/src/mainboard/google/brya/variants/crota/overridetree.cb index 2e51d40331..e958b68557 100644 --- a/src/mainboard/google/brya/variants/crota/overridetree.cb +++ b/src/mainboard/google/brya/variants/crota/overridetree.cb @@ -29,6 +29,10 @@ chip soc/intel/alderlake register "fast_pkg_c_ramp_disable[VR_DOMAIN_IA]" = "1" register "fast_pkg_c_ramp_disable[VR_DOMAIN_GT]" = "1" + # As per Intel Advisory doc#723158, the change is required to prevent possible + # display flickering issue. + register "usb2_phy_sus_pg_disable" = "1" + # Intel Common SoC Config #+-------------------+---------------------------+ #| Field | Value | |