From 7dd92959a35012706e0df77d980f58ee91c1751b Mon Sep 17 00:00:00 2001 From: David Wu Date: Wed, 13 Apr 2022 16:43:54 +0800 Subject: [PATCH] mb/google/brya/var/kano: Configure Acoustic noise mitigation Setup the following acoustic noise mitigation features: 1) Slew rate for both IA and GT domains to 1/8 2) Disable Fast package C ramp BUG=b:229046516 TEST=build and verified by power team Signed-off-by: David Wu Change-Id: Ifb5700391e33818878994f205acae7ee3b1b96d9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/63610 Tested-by: build bot (Jenkins) Reviewed-by: Tim Wawrzynczak --- src/mainboard/google/brya/variants/kano/overridetree.cb | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/mainboard/google/brya/variants/kano/overridetree.cb b/src/mainboard/google/brya/variants/kano/overridetree.cb index 7b36d3b8f8..5962fd1a25 100644 --- a/src/mainboard/google/brya/variants/kano/overridetree.cb +++ b/src/mainboard/google/brya/variants/kano/overridetree.cb @@ -22,6 +22,13 @@ chip soc/intel/alderlake # GPE configuration register "pmc_gpe0_dw1" = "GPP_D" + # Acoustic settings + register "acoustic_noise_mitigation" = "1" + register "slow_slew_rate[VR_DOMAIN_IA]" = "SLEW_FAST_8" + register "slow_slew_rate[VR_DOMAIN_GT]" = "SLEW_FAST_8" + register "fast_pkg_c_ramp_disable[VR_DOMAIN_IA]" = "1" + register "fast_pkg_c_ramp_disable[VR_DOMAIN_GT]" = "1" + register "usb2_ports[1]" = "USB2_PORT_EMPTY" # Disable USB2_C1 register "usb2_ports[3]" = "USB2_PORT_EMPTY" # Disable M.2 WWAN