From 6435576c46af0bc567d5f4a84178a584c935b255 Mon Sep 17 00:00:00 2001 From: Lean Sheng Tan Date: Tue, 6 Sep 2022 19:58:27 +0200 Subject: [PATCH] mb/prodrive/atlas: Configure Acoustic noise mitigation - Enable Acoustic noise mitigation - Set slow slew rate to fast/4 for VCCIA and VCCGT - Disable fast slew rate for deep package C states for VCCIA and VCCGT Signed-off-by: Lean Sheng Tan Change-Id: Ia344d9d939c3323bac82afdf25d5fff81081f9c8 Reviewed-on: https://review.coreboot.org/c/coreboot/+/67380 Reviewed-by: Angel Pons Tested-by: build bot (Jenkins) Reviewed-by: Christian Walter --- src/mainboard/prodrive/atlas/devicetree.cb | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/mainboard/prodrive/atlas/devicetree.cb b/src/mainboard/prodrive/atlas/devicetree.cb index 0a85541fd2..d458dfa83b 100644 --- a/src/mainboard/prodrive/atlas/devicetree.cb +++ b/src/mainboard/prodrive/atlas/devicetree.cb @@ -22,6 +22,13 @@ chip soc/intel/alderlake [DDI_PORT_2] = DDI_ENABLE_HPD | DDI_ENABLE_DDC, }" + # Acoustic settings + register "acoustic_noise_mitigation" = "1" + register "slow_slew_rate[VR_DOMAIN_IA]" = "SLEW_FAST_4" + register "slow_slew_rate[VR_DOMAIN_GT]" = "SLEW_FAST_4" + register "fast_pkg_c_ramp_disable[VR_DOMAIN_IA]" = "1" + register "fast_pkg_c_ramp_disable[VR_DOMAIN_GT]" = "1" + # USB configuration register "usb2_ports[0]" = "USB2_PORT_MID(OC0)" register "usb2_ports[1]" = "USB2_PORT_MID(OC0)"