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authorLean Sheng Tan <sheng.tan@9elements.com>2022-09-06 19:58:27 +0200
committerFelix Held <felix-coreboot@felixheld.de>2022-09-09 12:02:16 +0000
commit6435576c46af0bc567d5f4a84178a584c935b255 (patch)
tree000e3878bc1f275bace7c096278e87723ca0d124
parente125bea5a06a84b8906b9bda1a3d2d7ab4c18a8e (diff)
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 <sheng.tan@9elements.com> Change-Id: Ia344d9d939c3323bac82afdf25d5fff81081f9c8 Reviewed-on: https://review.coreboot.org/c/coreboot/+/67380 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Christian Walter <christian.walter@9elements.com>
-rw-r--r--src/mainboard/prodrive/atlas/devicetree.cb7
1 files changed, 7 insertions, 0 deletions
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)"