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authorWisley Chen <wisley.chen@quanta.corp-partner.google.com>2019-01-16 16:05:51 +0800
committerPatrick Georgi <pgeorgi@google.com>2019-01-20 21:04:09 +0000
commitb3a1a44ee294f9db2725f5647efd96c1260cc93c (patch)
treea32f8998dc5377a1eed416c48f3d4c99e2d44f3d /src/mainboard/google/octopus
parentb6fa7a28a4bf53608e789cbbe92a80a765c2ff5c (diff)
downloadcoreboot-b3a1a44ee294f9db2725f5647efd96c1260cc93c.tar.xz
mb/google/octopus/variants/meep: Disable xHCI compliance mode
Some usb devices exhibit signal loss which causes xHCI entering compliance mode. The resolution is to disable xHCI compliance mode. BUG=b:122671995 TEST=check "Disable Link Compliance Mode" bit of "SuperSpeed Port Link control" register and usb operation successfully. Change-Id: Ia2ae7e52391fadc8ed23b8b76c45d410757d22ec Signed-off-by: Wisley Chen <wisley.chen@quantatw.com> Reviewed-on: https://review.coreboot.org/c/30948 Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google/octopus')
-rw-r--r--src/mainboard/google/octopus/variants/meep/overridetree.cb3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mainboard/google/octopus/variants/meep/overridetree.cb b/src/mainboard/google/octopus/variants/meep/overridetree.cb
index f531d1343b..f7aeac1085 100644
--- a/src/mainboard/google/octopus/variants/meep/overridetree.cb
+++ b/src/mainboard/google/octopus/variants/meep/overridetree.cb
@@ -112,4 +112,7 @@ chip soc/intel/apollolake
end
end # - I2C 7
end
+
+ # Disable compliance mode
+ register "DisableComplianceMode" = "1"
end