Duncan Laurie merged this change.
mb/google/arcada: Add settings for noise mitgation
Enable acoustic noise mitgation for arcada platform,
the slow slew rates for Ia and Gt are fast time dived by 8.
BUG=b:131144464
TEST=waveform test and hardware validation result pass.
Signed-off-by: nathan chen <nathan_chen@wistron.corp-partner.google.com>
Change-Id: I395b2fc527705ab207325cfd7147e6af5f300fce
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32521
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
---
M src/mainboard/google/sarien/variants/arcada/devicetree.cb
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/src/mainboard/google/sarien/variants/arcada/devicetree.cb b/src/mainboard/google/sarien/variants/arcada/devicetree.cb
index cf64c4b..77bd82a 100644
--- a/src/mainboard/google/sarien/variants/arcada/devicetree.cb
+++ b/src/mainboard/google/sarien/variants/arcada/devicetree.cb
@@ -37,10 +37,10 @@
register "tdp_pl2_override" = "51"
register "Device4Enable" = "1"
register "AcousticNoiseMitigation" = "1"
- register "SlowSlewRateForIa" = "0"
- register "SlowSlewRateForGt" = "0"
+ register "SlowSlewRateForIa" = "2"
+ register "SlowSlewRateForGt" = "2"
register "SlowSlewRateForSa" = "0"
- register "SlowSlewRateForFivr" = "0"
+ register "SlowSlewRateForFivr" = "2"
# Enable eDP device
register "DdiPortEdp" = "1"
# Enable HPD for DDI ports B/C
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