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mb/google/rex/var/screebo: Configure slew rate to 1/8 for GT domain 

set slew rate to 1/8 for GT domain.

BUG=b:312405633
BRANCH=none
TEST=Able to build and boot google/screebo

Change-Id: Ib5cb07b7effc4a51c2119183010a03e026f639f8
Signed-off-by: Kun Liu <liukun11@huaqin.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79628
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Rui Zhou <zhourui@huaqin.corp-partner.google.com>
This commit is contained in:
Kun Liu 2023-12-20 10:44:20 +08:00 committed by Subrata Banik
parent aef345bfd7
commit b80a420369
1 changed files with 3 additions and 0 deletions
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3
src/mainboard/google/rex/variants/screebo/overridetree.cb
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@ -92,10 +92,13 @@ chip soc/intel/meteorlake
# Acoustic Noise settings and slew rate configuration:
# slew rate for IA Domain: Fast/8
# slew rate for GT Domain: Fast/8
# Ignore slew rate configuration for SA Domain
register "enable_acoustic_noise_mitigation" = "1"
register "disable_fast_pkgc_ramp[VR_DOMAIN_IA]" = "1"
register "slow_slew_rate_config[VR_DOMAIN_IA]" = "SLEW_FAST_8"
register "disable_fast_pkgc_ramp[VR_DOMAIN_GT]" = "1"
register "slow_slew_rate_config[VR_DOMAIN_GT]" = "SLEW_FAST_8"
register "slow_slew_rate_config[VR_DOMAIN_SA]" = "SLEW_IGNORE"