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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>
This commit is contained in:
Lean Sheng Tan 2022-09-06 19:58:27 +02:00 committed by Felix Held
parent e125bea5a0
commit 6435576c46
1 changed files with 7 additions and 0 deletions
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7
src/mainboard/prodrive/atlas/devicetree.cb
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@ -22,6 +22,13 @@ chip soc/intel/alderlake
[DDI_PORT_2] = DDI_ENABLE_HPD | DDI_ENABLE_DDC, [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 # USB configuration
register "usb2_ports[0]" = "USB2_PORT_MID(OC0)" register "usb2_ports[0]" = "USB2_PORT_MID(OC0)"
register "usb2_ports[1]" = "USB2_PORT_MID(OC0)" register "usb2_ports[1]" = "USB2_PORT_MID(OC0)"