From 0ccb7b2d48b6caed6a8423de9e01d4910eaf1b47 Mon Sep 17 00:00:00 2001 From: Casper Chang Date: Mon, 13 Dec 2021 10:46:46 +0800 Subject: mb/google/brya/var/primus{4es}: Configure Acoustic noise mitigation - Enable Acoustic noise mitigation - Set slow slew rate VCCIA and VCCGT to 8 BUG=b:204844399 TEST=USE="project_primus emerge-brya coreboot" and verified the setting meets the audible noise specification Signed-off-by: Casper Chang Change-Id: I0e0baf78a841278efda912cc5e4e9970329aacf6 Reviewed-on: https://review.coreboot.org/c/coreboot/+/60071 Tested-by: build bot (Jenkins) Reviewed-by: Tim Wawrzynczak --- src/mainboard/google/brya/variants/primus/overridetree.cb | 6 ++++++ src/mainboard/google/brya/variants/primus4es/overridetree.cb | 6 ++++++ 2 files changed, 12 insertions(+) (limited to 'src') diff --git a/src/mainboard/google/brya/variants/primus/overridetree.cb b/src/mainboard/google/brya/variants/primus/overridetree.cb index ef5ad98aca..58c52a703a 100644 --- a/src/mainboard/google/brya/variants/primus/overridetree.cb +++ b/src/mainboard/google/brya/variants/primus/overridetree.cb @@ -35,6 +35,12 @@ chip soc/intel/alderlake register "gpio_pm[COMM_5]" = "0" register "SaGv" = "SaGv_Enabled" register "MaxDramSpeed" = "3733" + # Acoustic settings + register "AcousticNoiseMitigation" = "1" + register "SlowSlewRate[VR_DOMAIN_IA]" = "SLEW_FAST_8" + register "SlowSlewRate[VR_DOMAIN_GT]" = "SLEW_FAST_8" + register "FastPkgCRampDisable[VR_DOMAIN_IA]" = "1" + register "FastPkgCRampDisable[VR_DOMAIN_GT]" = "1" # Intel Common SoC Config #+-------------------+---------------------------+ diff --git a/src/mainboard/google/brya/variants/primus4es/overridetree.cb b/src/mainboard/google/brya/variants/primus4es/overridetree.cb index ce06d30324..22d61b0a2e 100644 --- a/src/mainboard/google/brya/variants/primus4es/overridetree.cb +++ b/src/mainboard/google/brya/variants/primus4es/overridetree.cb @@ -35,6 +35,12 @@ chip soc/intel/alderlake register "gpio_pm[COMM_5]" = "0" register "SaGv" = "SaGv_Enabled" register "MaxDramSpeed" = "3733" + # Acoustic settings + register "AcousticNoiseMitigation" = "1" + register "SlowSlewRate[VR_DOMAIN_IA]" = "SLEW_FAST_8" + register "SlowSlewRate[VR_DOMAIN_GT]" = "SLEW_FAST_8" + register "FastPkgCRampDisable[VR_DOMAIN_IA]" = "1" + register "FastPkgCRampDisable[VR_DOMAIN_GT]" = "1" # Intel Common SoC Config #+-------------------+---------------------------+ -- cgit v1.2.3