[coreboot-gerrit] Change in coreboot[master]: mb/google/octopus/variants/lick: Disable xHCI compliance mode

[Patrick Georgi (Code Review)]

Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/39874 )

Change subject: mb/google/octopus/variants/lick: Disable xHCI compliance mode
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mb/google/octopus/variants/lick: Disable xHCI compliance mode

Since the first LFPS timeout causes xHCI to enter compliance
mode, the SS hub cannot be enumerated. The resolution is to
disable xHCI compliance mode.

BRANCH=octopus
BUG=b:153782196
TEST=Verified usb operation successfully.

Signed-off-by: Julia Tsai 
Change-Id: If0bf68c8cf0a2a3b857395b6b82e46cc384ba65c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39874
Reviewed-by: Henry Sun 
Reviewed-by: Angel Pons 
Tested-by: build bot (Jenkins) 
---
M src/mainboard/google/octopus/variants/lick/overridetree.cb
1 file changed, 4 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Angel Pons: Looks good to me, approved
  Henry Sun: Looks good to me, but someone else must approve

diff --git a/src/mainboard/google/octopus/variants/lick/overridetree.cb b/src/mainboard/google/octopus/variants/lick/overridetree.cb
index 3aa369e..3ade354 100644
--- a/src/mainboard/google/octopus/variants/lick/overridetree.cb
+++ b/src/mainboard/google/octopus/variants/lick/overridetree.cb
@@ -112,4 +112,8 @@
    		end
    	end	# - I2C 6
    end
+
+	# Disable compliance mode
+
+	register "DisableComplianceMode" = "1"
 end