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| author | Casper Chang <casper_chang@wistron.corp-partner.google.com> | 2022-11-04 10:53:00 +0800 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2022-11-05 05:03:18 +0000 |
| commit | cf886b54efddeb0efe497659ad9710d3ed4097bf (patch) | |
| tree | f1593ce7334f182f53efa81541689e29d4e9180f /src | |
| parent | 44bf309309dc7d750b7640780ce7e106a53a7824 (diff) | |
| download | coreboot-cf886b54efddeb0efe497659ad9710d3ed4097bf.tar.gz coreboot-cf886b54efddeb0efe497659ad9710d3ed4097bf.tar.bz2 coreboot-cf886b54efddeb0efe497659ad9710d3ed4097bf.zip | |
mb/google/brask: Disable PCH USB2 phy power gating for moli
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:257373742
TEST=Verify the build for moli board
Signed-off-by: Casper Chang <casper_chang@wistron.corp-partner.google.com>
Change-Id: I457d410501be996f0f29ec622e1829f1581c4970
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69193
Reviewed-by: Zhuohao Lee <zhuohao@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Scott Chao <scott_chao@wistron.corp-partner.google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/brya/variants/moli/overridetree.cb | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/moli/overridetree.cb b/src/mainboard/google/brya/variants/moli/overridetree.cb index 8f1bf8e26323..f3b28c4b9099 100644 --- a/src/mainboard/google/brya/variants/moli/overridetree.cb +++ b/src/mainboard/google/brya/variants/moli/overridetree.cb @@ -14,6 +14,9 @@ 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" # Enable HDMI2 in PortA, HDMI1 in PortB, HDMI/DP in Port2 register "ddi_ports_config" = "{ [DDI_PORT_A] = DDI_ENABLE_HPD | DDI_ENABLE_DDC, |