tree e8306646c6f01062837cd2df69d4a7c2a32e777e
parent adbef6d2b3d46b3deaca49e93eb6e1b905c0ae61
author Subrata Banik <subratabanik@google.com> 1669313893 +0530
committer Subrata Banik <subratabanik@google.com> 1669967527 +0000

soc/intel/meteorlake: Allow sending late EOP cmd to CSE

This patch selects SOC_INTEL_CSE_SEND_EOP_LATE config to let IA
common code to skip sending CSE EOP cmd during finalize operation
rather uses boot state machine (either payload load or payload boot)
to delay in sending EOP cmd to CSE.

BUG=b:260041679
TEST=Able to boot to Google/Rex with this patch and observed ~150ms
savings in boot time

Without this patch:

942:before sending EOP to ME	1,795,702 (354)
943:after sending EOP to ME	1,950,526 (154,824)

With this patch:

942:before sending EOP to ME	2,051,406 (35,484)
943:after sending EOP to ME	2,057,583 (6,177)

Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I7d44d5eff890ac78e3075d49cc249f740686dd0d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69999
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>