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authorCole Nelson <colex.nelson@intel.com>2018-06-12 10:02:49 -0700
committerPatrick Georgi <pgeorgi@google.com>2018-06-14 09:26:27 +0000
commit9d0950f154b07218e6c3bf6731279b587fe78a69 (patch)
treed09df0b80c3e9e36a94ebbc93bf2fce03a1fce5b /src/include
parent2b69b21c2db20ddce1f04e72b3eaa1d624540845 (diff)
soc/intel/{glk,apl}: ensure C1E is disabled after S3 resume
C1E is disabled by the kernel driver intel_idle at boot. This does not address the S3 resume case, so we lose state and C1E is enabled after S3 resume. Disable C1E for GLK as it is for APL. This gives a coherent state before and after S3 resume. TEST='iotools rdmsr cpu 0x1fc'. Returns the same value after boot and S3 resume with bit [1] set to zero (0x20005d). Change-Id: I437cbaca75c539c2bc5cd801ab8df907e7447d10 Signed-off-by: Cole Nelson <colex.nelson@intel.com> Reviewed-on: https://review.coreboot.org/27019 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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