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authorLijian Zhao <lijian.zhao@intel.com>2017-11-08 19:21:32 -0800
committerAaron Durbin <adurbin@chromium.org>2017-11-20 17:13:57 +0000
commit21573e9f4e6c5ec1c5ab7da265f42642f832394b (patch)
treed0d7b3d22cd2d551af87703ec0cd9f3373132e97 /src/mainboard/google
parentafd03d8a28df60a058e73e4f1f4e0e89f8373bd1 (diff)
soc/intel/cannonlake: Add ACPI workaround for EMMC
Two W/A had been added here for EMMC to make it working properly. 1. Enable power gating after D3 entry, disable power gating before D0 entry. 2. Add 50 ms delay to ensure Rcomp calibration done before EMMC out of D3. BUG=b:69323943 TEST=Run multiple ACPI S3 cycles on cannonlake u LPDDR4 platform. Change-Id: Ic6e98264521fb02b911a8c157a7982afa35fe20c Signed-off-by: Lijian Zhao <lijian.zhao@intel.com> Reviewed-on: https://review.coreboot.org/22390 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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