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authorSubrata Banik <subratabanik@google.com>2023-04-19 18:30:53 +0530
committerFelix Held <felix-coreboot@felixheld.de>2023-04-20 22:04:30 +0000
commitad42d9c22baa0ad5abbdb29a7c159b76220404d3 (patch)
treedb32af7ccc55508967d9213e41ee86c6a5e44d1a /util/marvell
parent65b54c4f9aa0aecf7a3f8c0ddb07929c9b2c6162 (diff)
soc/intel/meteorlake: Send CSE EOP Async CMD early
This patch sends the CSE EOP command asynchronous implementation early as part of `soc_init_pre_device`. Without this patch the duration between asynchronous CSE EOP send and receive commands is not ample which causes idle delay while waiting for EOP response. The goal of the CSE async implementation is to avoid idle delay while capturing the response from CSE EOP cmd. This patch helps to create ample duration between CSE EOP command being sent and response being captured. TEST=Able to boot google/rex sku to ChromeOS and observed ~100ms of boot time savings (across warm and cold reset scenarios) Change-Id: I91ed38edbd5a31d61d4888e1466169a3494d635a Signed-off-by: Subrata Banik <subratabanik@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/74561 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kapil Porwal <kapilporwal@google.com> Reviewed-by: Tarun Tuli <taruntuli@google.com>
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