Aaron Durbin (adurbin@google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4939
-gerrit
commit 3ff1a0e4a2fbd85356e93bd16de44ff749d620b0 Author: Duncan Laurie dlaurie@chromium.org Date: Mon Nov 4 17:28:19 2013 -0800
baytrail: Add default _OSC method
This is needed to let the kernel know it can control everything and not to disable features.
BUG=chrome-os-partner:23505 BRANCH=rambi TEST=build and boot on rambi
Change-Id: I40ff15bb931a9be7c31509ec84489083b5af0a82 Signed-off-by: Duncan Laurie dlaurie@chromium.org Reviewed-on: https://chromium-review.googlesource.com/175629 Reviewed-by: Aaron Durbin adurbin@chromium.org Signed-off-by: Aaron Durbin adurbin@chromium.org --- src/soc/intel/baytrail/acpi/southcluster.asl | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/src/soc/intel/baytrail/acpi/southcluster.asl b/src/soc/intel/baytrail/acpi/southcluster.asl index 5e0d31a..b936fa4 100644 --- a/src/soc/intel/baytrail/acpi/southcluster.asl +++ b/src/soc/intel/baytrail/acpi/southcluster.asl @@ -193,3 +193,20 @@ Device (PDRC) Return(PDRS) } } + +Method (_OSC, 4) +{ + /* Check for proper GUID */ + If (LEqual (Arg0, ToUUID("33DB4D5B-1FF7-401C-9657-7441C03DD766"))) + { + /* Let OS control everything */ + Return (Arg3) + } + Else + { + /* Unrecognized UUID */ + CreateDWordField (Arg3, 0, CDW1) + Or (CDW1, 4, CDW1) + Return (Arg3) + } +}