From 460b4f8dfd37cb06fe2a60c57abcc2b2564f8100 Mon Sep 17 00:00:00 2001 From: Ren Kuo Date: Fri, 29 Jan 2021 10:22:30 +0800 Subject: mb/google/dedede/var/magolor: Configure Acoustic noise mitigation UPDs Enable Acoustic noise mitigation for magolor and set slew rate to 1/8 which is calibrated value for the board. BUG=b:178678267 BRANCH=dedede TEST=build firmware to UPD and Acoustic noise test Signed-off-by: Ren Kuo Change-Id: Idea2a801399bb5c7e0b8e59ee7a826c86a44f4ea Reviewed-on: https://review.coreboot.org/c/coreboot/+/50099 Reviewed-by: Karthik Ramasubramanian Tested-by: build bot (Jenkins) --- src/mainboard/google/dedede/variants/magolor/overridetree.cb | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/mainboard/google/dedede/variants/magolor/overridetree.cb b/src/mainboard/google/dedede/variants/magolor/overridetree.cb index 78d5ddea37..23932c3fd4 100644 --- a/src/mainboard/google/dedede/variants/magolor/overridetree.cb +++ b/src/mainboard/google/dedede/variants/magolor/overridetree.cb @@ -71,6 +71,12 @@ chip soc/intel/jasperlake register "tcc_offset" = "15" # TCC of 90C + # 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 -- cgit v1.2.3