diff options
| author | Subrata Banik <subratabanik@google.com> | 2023-11-28 23:07:33 +0530 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2023-12-20 04:25:29 +0000 |
| commit | 20629b4e650bfd9031678d39d33862522b67fc2b (patch) | |
| tree | 3bd68586efd99547a5316ebc6034c8a5c2d1b8e0 /src/mainboard | |
| parent | 26fdb062a7fb38a64fbbbb68a002abd3fda617e2 (diff) | |
mb/google/rex/var/screebo: Configure Acoustic noise mitigation
Enable Acoustic noise mitigation for google/screebo and set slew rate
to 1/8 for IA domain and ignore the slew rate for SA domain.
BUG=b:312405633,
TEST=Able to build and boot google/screebo.
Before:
[SPEW ] AcousticNoiseMitigation : 0x0
[SPEW ] FastPkgCRampDisable for Index = 0 : 0x0
[SPEW ] SlowSlewRate for Index = 0 : 0x0
After:
[SPEW ] AcousticNoiseMitigation : 0x1
[SPEW ] FastPkgCRampDisable for Index = 0 : 0x1
[SPEW ] SlowSlewRate for Index = 0 : 0x2
Change-Id: Ib86939ab48c2c6e7d0491d7c1cb4a2c7c6a1b568
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79323
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Eric Lai <ericllai@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: YH Lin <yueherngl@google.com>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/rex/variants/screebo/overridetree.cb | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mainboard/google/rex/variants/screebo/overridetree.cb b/src/mainboard/google/rex/variants/screebo/overridetree.cb index 86bd74d0b1..0a66fdb5a9 100644 --- a/src/mainboard/google/rex/variants/screebo/overridetree.cb +++ b/src/mainboard/google/rex/variants/screebo/overridetree.cb @@ -90,6 +90,15 @@ chip soc/intel/meteorlake [PchSerialIoIndexI2C5] = PchSerialIoPci, }" + # Acoustic Noise settings and slew rate configuration: + # slew rate for IA Domain: Fast/8 + # Ignore slew rate configuration for SA Domain + register "enable_acoustic_noise_mitigation" = "1" + register "disable_fast_pkgc_ramp[VR_DOMAIN_IA]" = "1" + register "slow_slew_rate_config[VR_DOMAIN_IA]" = "SLEW_FAST_8" + register "slow_slew_rate_config[VR_DOMAIN_SA]" = "SLEW_IGNORE" + + # Intel Common SoC Config #+-------------------+---------------------------+ #| Field | Value | |