Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/69205 )
Change subject: mb/google/brya/var/kinox: Disable PCH USB2 phy power gating ......................................................................
mb/google/brya/var/kinox: Disable PCH USB2 phy power gating
The patch disables PCH USB2 Phy power gating to prevent possible display flicker issue for kinox board. Please refer Intel doc#723158 for more information.
BUG=b:257373738 TEST=Verify the build for kinox board
Signed-off-by: Dtrain Hsu dtrain_hsu@compal.corp-partner.google.com Change-Id: Ifcf4f89ea4c61ec4f9a31edba069d2111ca06010 Reviewed-on: https://review.coreboot.org/c/coreboot/+/69205 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Subrata Banik subratabanik@google.com Reviewed-by: Ricky Chang rickytlchang@google.com Reviewed-by: Eric Lai eric_lai@quanta.corp-partner.google.com --- M src/mainboard/google/brya/variants/kinox/overridetree.cb 1 file changed, 26 insertions(+), 0 deletions(-)
Approvals: build bot (Jenkins): Verified Ricky Chang: Looks good to me, but someone else must approve Subrata Banik: Looks good to me, approved Eric Lai: Looks good to me, approved
diff --git a/src/mainboard/google/brya/variants/kinox/overridetree.cb b/src/mainboard/google/brya/variants/kinox/overridetree.cb index 8356320..01610c1 100644 --- a/src/mainboard/google/brya/variants/kinox/overridetree.cb +++ b/src/mainboard/google/brya/variants/kinox/overridetree.cb @@ -12,6 +12,10 @@ # GPE configuration register "pmc_gpe0_dw1" = "GPP_H"
+ # 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 |