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authorStanley Wu <stanley1.wu@lcfc.corp-partner.google.com>2021-04-06 18:27:31 +0800
committerPatrick Georgi <pgeorgi@google.com>2021-04-09 06:23:39 +0000
commitec76ae082a985981cc9472c86e87ca5a3d623b84 (patch)
tree9579ce95e0d035ec9f8ebfdb10f456c56f79c087 /src/mainboard/google/dedede/variants
parent474ed6b46f082fdfbc8f41191aa51bf595889ae8 (diff)
mb/google/dedede/var/boten: Configure Acoustic noise mitigation UPDs
Enable Acoustic noise mitigation for boten and set slew rate to 1/8 which is calibrated value for the board. BUG=b:180668001 BRANCH=dedede TEST=build firmware to UPD and Acoustic noise test Change-Id: I75851bd7c279feeab4ab94f4c82d55bf0e5ce316 Signed-off-by: Stanley Wu <stanley1.wu@lcfc.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/52135 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Diffstat (limited to 'src/mainboard/google/dedede/variants')
-rw-r--r--src/mainboard/google/dedede/variants/boten/overridetree.cb6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/boten/overridetree.cb b/src/mainboard/google/dedede/variants/boten/overridetree.cb
index 34044ff569..f914b82b79 100644
--- a/src/mainboard/google/dedede/variants/boten/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/boten/overridetree.cb
@@ -74,6 +74,12 @@ chip soc/intel/jasperlake
[PchSerialIoIndexI2C5] = PchSerialIoPci,
}"
+ # Enable Acoustic noise mitigation and set slew rate to 1/8
+ # Rest of the parameters are 0 by default.
+ register "AcousticNoiseMitigation" = "1"
+ register "SlowSlewRate" = "SlewRateFastBy8"
+ register "FastPkgCRampDisable" = "1"
+
device domain 0 on
device pci 04.0 on
chip drivers/intel/dptf