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

[Tim Wawrzynczak (Code Review)]

Tim Wawrzynczak has submitted this change. ( https://review.coreboot.org/c/coreboot/+/59535 )

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

- Enable Acoustic noise mitigation
- Set slow slew rate VCCIA and VCCGT to 16

BUG=b:206704930
TEST=USE="project_gimble emerge-brya coreboot" and verify it builds
without error.

Signed-off-by: Mark Hsieh 
Change-Id: I2be3d30403284b98276c837adefd91aa62c971e4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59535
Reviewed-by: Tim Wawrzynczak 
Tested-by: build bot (Jenkins) 
---
M src/mainboard/google/brya/variants/gimble/overridetree.cb
1 file changed, 7 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Tim Wawrzynczak: Looks good to me, approved
  Mark Hsieh: Looks good to me, but someone else must approve

diff --git a/src/mainboard/google/brya/variants/gimble/overridetree.cb b/src/mainboard/google/brya/variants/gimble/overridetree.cb
index 27ea5aa..4bfe124 100644
--- a/src/mainboard/google/brya/variants/gimble/overridetree.cb
+++ b/src/mainboard/google/brya/variants/gimble/overridetree.cb
@@ -34,6 +34,13 @@
    register "SaGv" = "SaGv_Enabled"
    register "PsysPmax" = "143"
    register "TcssAuxOri" = "1"
+	# Acoustic settings
+	register "AcousticNoiseMitigation" = "1"
+	register "SlowSlewRate[VR_DOMAIN_IA]" = "SLEW_FAST_16"
+	register "SlowSlewRate[VR_DOMAIN_GT]" = "SLEW_FAST_16"
+	register "FastPkgCRampDisable[VR_DOMAIN_IA]" = "1"
+	register "FastPkgCRampDisable[VR_DOMAIN_GT]" = "1"
+
    register "typec_aux_bias_pads[0]" = "{.pad_auxp_dc = GPP_E22, .pad_auxn_dc = GPP_E23}"
    register "usb2_ports[1]" = "USB2_PORT_MAX(OC1)" # set MAX to USB2_C1 for eye diagram
    register "usb2_ports[2]" = "USB2_PORT_EMPTY" # Disable USB2_C2