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authorAndrey Petrov <andrey.petrov@intel.com>2016-10-03 16:05:20 -0700
committerMartin Roth <martinroth@google.com>2016-10-07 19:14:13 +0200
commit0910f4e76f05798e1a5d96cb4e7f202b290fb62e (patch)
tree76f94191d6733cb156c43d37e49a332cd0fe8fc6 /src/include/antirollback.h
parent7692807f4f27a045c0e3638319528c7ae0873d57 (diff)
soc/intel/apollolake: Disable HECI2 device reset on S3 resume
Converged Security Engine (CSE) has a secure variable storage feature. However, this storage is expected to be reset during S3 resume flow. Since coreboot does not use secure storage feature, disable HECI2 reset request. This saves appr. 130ms of resume time. BUG=chrome-os-partner:56941 BRANCH=none TEST=powerd_dbus_suspend; resume; check time with cbmem -t. Note FspMemoryInit time is not significantly different from normal boot time case. Change-Id: I485a980369c6bd97c43b9e554d65ee89e84d8233 Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Reviewed-on: https://review.coreboot.org/16870 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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