Change in coreboot[master]: mb/google/brya/var/redrix: Configure Acoustic noise mitigation

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/58947 )

Change subject: mb/google/brya/var/redrix: Configure Acoustic noise mitigation
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mb/google/brya/var/redrix: Configure Acoustic noise mitigation

Enable Acoustic noise mitigation for redrix and set slew rate to 1/8

BUG=b:204009588
TEST=build and verified by power team

Signed-off-by: Wisley Chen 
Change-Id: I0fc0bb68c4de6fca60ee290eb46a77200d748ca8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58947
Tested-by: build bot (Jenkins) 
Reviewed-by: Tim Wawrzynczak 
---
M src/mainboard/google/brya/variants/redrix/overridetree.cb
1 file changed, 5 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Tim Wawrzynczak: Looks good to me, approved

diff --git a/src/mainboard/google/brya/variants/redrix/overridetree.cb b/src/mainboard/google/brya/variants/redrix/overridetree.cb
index 777ac11..dc1a424 100644
--- a/src/mainboard/google/brya/variants/redrix/overridetree.cb
+++ b/src/mainboard/google/brya/variants/redrix/overridetree.cb
@@ -37,6 +37,11 @@
    # FIVR RFI Spread Spectrum 6%
    register "FivrSpreadSpectrum" = "FIVR_SS_6"

+	# Acoustic settings
+	register "AcousticNoiseMitigation" = "1"
+	register "SlowSlewRate[VR_DOMAIN_IA]" = "SLEW_FAST_8"
+	register "FastPkgCRampDisable[VR_DOMAIN_IA]" = "1"
+
    # Intel Common SoC Config
    #+-------------------+---------------------------+
    #| Field             |  Value                    |