Dtrain Hsu has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/74737 )
Change subject: mb/google/brya/var/omnigul: Disable PCH USB2 phy power gating ......................................................................
mb/google/brya/var/omnigul: Disable PCH USB2 phy power gating
The patch disables PCH USB2 Phy power gating to prevent possible display flicker issue for Omnigul board. Please refer Intel doc#723158 for more information.
BUG=b: TEST=Verify the build for Omnigul board
Change-Id: I04e54df5afe09c12e1cf774445d57e13ffd8819e Signed-off-by: Dtrain Hsu dtrain_hsu@compal.corp-partner.google.com --- M src/mainboard/google/brya/variants/omnigul/overridetree.cb 1 file changed, 21 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/37/74737/1
diff --git a/src/mainboard/google/brya/variants/omnigul/overridetree.cb b/src/mainboard/google/brya/variants/omnigul/overridetree.cb index 760ee82..4eed200 100644 --- a/src/mainboard/google/brya/variants/omnigul/overridetree.cb +++ b/src/mainboard/google/brya/variants/omnigul/overridetree.cb @@ -10,6 +10,10 @@
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" + # Intel Common SoC Config #+-------------------+---------------------------+ #| Field | Value |