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mb/google/rex/var/kanix: Configure Acoustic noise mitigation

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Enable Acoustic noise mitigation for google/kanix and set slew rate
to 1/8 for IA and GT domains.

BUG=b:409934780
BRANCH=firmware-rex-15709.B
TEST=Able to build and boot to google/kanix
Change-Id: I73460715ac71428843cf505a21de15a6e4d15bea
Signed-off-by: Kenneth Chan <kenneth.chan@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/87349
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Kenneth Chan 2025-04-17 11:58:30 +08:00 • committed by Subrata Banik
commit 5ef9259d76
1 changed files with 10 additions and 0 deletions
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10
src/mainboard/google/rex/variants/kanix/overridetree.cb
View file

@ -88,6 +88,16 @@ chip soc/intel/meteorlake
[PchSerialIoIndexI2C5] = PchSerialIoPci,
}"
# 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"
# Intel Common SoC Config
#+-------------------+---------------------------+
#| Field | Value |