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| author | V Sowmya <v.sowmya@intel.com> | 2020-07-24 09:16:05 +0530 |
|---|---|---|
| committer | Subrata Banik <subrata.banik@intel.com> | 2020-08-17 05:14:23 +0000 |
| commit | 6d92ab8932ee098516af3e0d208fad536f5c1c55 (patch) | |
| tree | f2aac5f984f867a39038bc74e7949081aede1a6d /src | |
| parent | 7aee5c67a11bed7ae028aac6752ed2f31868b43e (diff) | |
| download | coreboot-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.cb | 14 |
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 |