diff options
| author | Shaunak Saha <shaunak.saha@intel.com> | 2020-09-02 15:47:31 -0700 |
|---|---|---|
| committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2020-10-23 20:26:33 +0000 |
| commit | 84275161a9c7c417c57b5403214d496e17fd66a4 (patch) | |
| tree | 23c37e82eee5747b0f42382a00c63cc96f146015 /src | |
| parent | 0d0f43f9d36f3a942322486b486b98f7ae5cd70d (diff) | |
| download | coreboot-84275161a9c7c417c57b5403214d496e17fd66a4.tar.xz | |
mb/google/volteer: Add settings for noise mitgation
Enable acoustic noise mitgation for volteer platforms.
BUG=b:153015585
BRANCH=none
TEST= Measure the change in noise level by changing the values
in devicetree.
Signed-off-by: Shaunak Saha <shaunak.saha@intel.com>
Change-Id: I69a6453091bf607d3c5847c99bc077e6b7dbc639
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45053
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
3 files changed, 33 insertions, 0 deletions
diff --git a/src/mainboard/google/volteer/variants/delbin/overridetree.cb b/src/mainboard/google/volteer/variants/delbin/overridetree.cb index 21b1f0761e..5ecfccfba0 100644 --- a/src/mainboard/google/volteer/variants/delbin/overridetree.cb +++ b/src/mainboard/google/volteer/variants/delbin/overridetree.cb @@ -2,6 +2,17 @@ chip soc/intel/tigerlake register "DdiPort1Hpd" = "0" register "DdiPort2Hpd" = "0" + # Acoustic settings + register "AcousticNoiseMitigation" = "1" + register "SlowSlewRate[VR_DOMAIN_IA]" = "SLEW_FAST_8" + register "SlowSlewRate[VR_DOMAIN_GT]" = "SLEW_FAST_8" + register "SlowSlewRate[VR_DOMAIN_SA]" = "SLEW_FAST_8" + register "SlowSlewRate[VR_DOMAIN_VLCC]" = "SLEW_FAST_8" + register "FastPkgCRampDisable[VR_DOMAIN_IA]" = "1" + register "FastPkgCRampDisable[VR_DOMAIN_GT]" = "1" + register "FastPkgCRampDisable[VR_DOMAIN_SA]" = "1" + register "FastPkgCRampDisable[VR_DOMAIN_VLCC]" = "1" + device domain 0 on device ref i2c0 on chip drivers/i2c/generic diff --git a/src/mainboard/google/volteer/variants/volteer/overridetree.cb b/src/mainboard/google/volteer/variants/volteer/overridetree.cb index 2c120d59c7..c5b4c72927 100644 --- a/src/mainboard/google/volteer/variants/volteer/overridetree.cb +++ b/src/mainboard/google/volteer/variants/volteer/overridetree.cb @@ -49,6 +49,17 @@ chip soc/intel/tigerlake register "HybridStorageMode" = "1" + # Acoustic settings + register "AcousticNoiseMitigation" = "1" + register "SlowSlewRate[VR_DOMAIN_IA]" = "SLEW_FAST_8" + register "SlowSlewRate[VR_DOMAIN_GT]" = "SLEW_FAST_8" + register "SlowSlewRate[VR_DOMAIN_SA]" = "SLEW_FAST_8" + register "SlowSlewRate[VR_DOMAIN_VLCC]" = "SLEW_FAST_8" + register "FastPkgCRampDisable[VR_DOMAIN_IA]" = "1" + register "FastPkgCRampDisable[VR_DOMAIN_GT]" = "1" + register "FastPkgCRampDisable[VR_DOMAIN_SA]" = "1" + register "FastPkgCRampDisable[VR_DOMAIN_VLCC]" = "1" + device domain 0 on device ref ipu on end device ref i2c0 on diff --git a/src/mainboard/google/volteer/variants/volteer2/overridetree.cb b/src/mainboard/google/volteer/variants/volteer2/overridetree.cb index d49a52a89b..2db1f087ef 100644 --- a/src/mainboard/google/volteer/variants/volteer2/overridetree.cb +++ b/src/mainboard/google/volteer/variants/volteer2/overridetree.cb @@ -7,6 +7,17 @@ chip soc/intel/tigerlake register "HybridStorageMode" = "1" + # Acoustic settings + register "AcousticNoiseMitigation" = "1" + register "SlowSlewRate[VR_DOMAIN_IA]" = "SLEW_FAST_8" + register "SlowSlewRate[VR_DOMAIN_GT]" = "SLEW_FAST_8" + register "SlowSlewRate[VR_DOMAIN_SA]" = "SLEW_FAST_8" + register "SlowSlewRate[VR_DOMAIN_VLCC]" = "SLEW_FAST_8" + register "FastPkgCRampDisable[VR_DOMAIN_IA]" = "1" + register "FastPkgCRampDisable[VR_DOMAIN_GT]" = "1" + register "FastPkgCRampDisable[VR_DOMAIN_SA]" = "1" + register "FastPkgCRampDisable[VR_DOMAIN_VLCC]" = "1" + device domain 0 on device ref dptf on chip drivers/intel/dptf |