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authorV Sowmya <v.sowmya@intel.com>2020-07-24 09:16:05 +0530
committerSubrata Banik <subrata.banik@intel.com>2020-08-17 05:14:23 +0000
commit6d92ab8932ee098516af3e0d208fad536f5c1c55 (patch)
treef2aac5f984f867a39038bc74e7949081aede1a6d /src
parent7aee5c67a11bed7ae028aac6752ed2f31868b43e (diff)
downloadcoreboot-6d92ab8932ee098516af3e0d208fad536f5c1c55.tar.xz
mb/google/dedede: Update the SLP_Sx assertion widths and PwrCycDur
This patch updates the SLP_Sx assertion width and power cycle duration for the dedede platforms. Power cycle duration: With default value, S0->S5 -> [ ~4.2 seconds delay ] -> S5->S0 With value set to 1, S0->S5 -> [ ~1.2 seconds delay ] -> S5->S0 BUG=b:159104150 TEST=Verified that the power cycle duration is ~1.2s with global reset on waddledoo. Change-Id: I7079cbd564288b5d5b69e07661434439365063d3 Signed-off-by: V Sowmya <v.sowmya@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/43792 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aamir Bohra <aamir.bohra@intel.com> Reviewed-by: Sridhar Siricilla <sridhar.siricilla@intel.com> Reviewed-by: Maulik V Vaghela <maulik.v.vaghela@intel.com> Reviewed-by: Ronak Kanabar <ronak.kanabar@intel.com> Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/google/dedede/variants/baseboard/devicetree.cb14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/baseboard/devicetree.cb b/src/mainboard/google/dedede/variants/baseboard/devicetree.cb
index d0609ef0cd..e7c5656833 100644
--- a/src/mainboard/google/dedede/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/dedede/variants/baseboard/devicetree.cb
@@ -166,6 +166,20 @@ chip soc/intel/jasperlake
# Skip the CPU repalcement check
register "SkipCpuReplacementCheck" = "1"
+ # Set the minimum assertion width
+ register "PchPmSlpS3MinAssert" = "3" # 50ms
+ register "PchPmSlpS4MinAssert" = "1" # 1s
+ register "PchPmSlpSusMinAssert" = "3" # 1s
+ register "PchPmSlpAMinAssert" = "3" # 98ms
+
+ # NOTE: Duration programmed in the below register should never be smaller than the
+ # stretch duration programmed in the following registers -
+ # - GEN_PMCON_A.SLP_S3_MIN_ASST_WDTH (PchPmSlpS3MinAssert)
+ # - GEN_PMCON_A.S4MAW (PchPmSlpS4MinAssert)
+ # - PM_CFG.SLP_A_MIN_ASST_WDTH (PchPmSlpAMinAssert)
+ # - PM_CFG.SLP_LAN_MIN_ASST_WDTH
+ register "PchPmPwrCycDur" = "1" # 1s
+
device domain 0 on
device pci 00.0 on end # Host Bridge
device pci 02.0 on end # Integrated Graphics Device