diff options
| author | Tony Huang <tony-huang@quanta.corp-partner.google.com> | 2021-03-24 13:16:03 +0800 |
|---|---|---|
| committer | Karthik Ramasubramanian <kramasub@google.com> | 2021-04-01 16:45:21 +0000 |
| commit | ebf380b56644858995a7f5410c642479c2d36072 (patch) | |
| tree | 684702ae014d8d37ba6fa6c06211af27a9ae2d93 /src/mainboard/google | |
| parent | cce7d826db973f201169559eebd011ab32ff8166 (diff) | |
| download | coreboot-ebf380b56644858995a7f5410c642479c2d36072.tar.xz | |
mb/google/dedede/var/lantis: Configure Acoustic noise mitigation UPDs
Enable Acoustic noise mitigation for lantis and set slew rate to 1/4
which is calibrated value for the board. Other values like PreWake,
Rampup and RampDown are 0 by default.
BUG=b:183561593
BRANCH=dedede
TEST=EE verify acoustic noise test passes.
Change-Id: I5e5f24ed934910726c220678068d085b6ee2bcf6
Signed-off-by: Tony Huang <tony-huang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51762
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google')
| -rw-r--r-- | src/mainboard/google/dedede/variants/lantis/overridetree.cb | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/lantis/overridetree.cb b/src/mainboard/google/dedede/variants/lantis/overridetree.cb index 368b1dd9bc..b9d6f72af7 100644 --- a/src/mainboard/google/dedede/variants/lantis/overridetree.cb +++ b/src/mainboard/google/dedede/variants/lantis/overridetree.cb @@ -65,6 +65,12 @@ chip soc/intel/jasperlake .tdp_pl2_override = 15, }" + # Enable Acoustic noise mitigation and set slew rate to 1/4 + # Rest of the parameters are 0 by default. + register "AcousticNoiseMitigation" = "1" + register "SlowSlewRate" = "SlewRateFastBy4" + register "FastPkgCRampDisable" = "1" + device domain 0 on device pci 04.0 on chip drivers/intel/dptf |