diff options
| author | Jamie Ryu <jamie.m.ryu@intel.com> | 2020-08-18 19:10:43 -0700 |
|---|---|---|
| committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2020-09-30 15:27:18 +0000 |
| commit | 80535953707ba925aefc7c40318d6318178f04cf (patch) | |
| tree | 14059f1d143983c6a2daeebda16f41c84aa2fc5c /src/mainboard/google/volteer/variants | |
| parent | 075df92298fe3bb0ef04233395effe668c4a5550 (diff) | |
mb/google/volteer: Update SLP_Sx assertion widths and PwrCycDur
This patch updates the SLP_Sx assertion widths and power cycle duration
for volteer.
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:159108661
TEST=Verified that the power cycle duration is 1~2s with a global reset
on volteer.
Signed-off-by: Jamie Ryu <jamie.m.ryu@intel.com>
Change-Id: Idf4e0c3a60b4ac59e31df1357f2ff28f195ff17f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44559
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: V Sowmya <v.sowmya@intel.com>
Diffstat (limited to 'src/mainboard/google/volteer/variants')
| -rw-r--r-- | src/mainboard/google/volteer/variants/baseboard/devicetree.cb | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb index 43ba2551e2..7790230b39 100644 --- a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb @@ -154,6 +154,40 @@ chip soc/intel/tigerlake [PchSerialIoIndexUART2] = PchSerialIoDisabled, }" + # Set the minimum assertion width + # PchPmSlpS3MinAssert: + # - 1: 60us + # - 2: 1ms + # - 3: 50ms + # - 4: 2s + register "PchPmSlpS3MinAssert" = "3" # 50ms + # PchPmSlpS4MinAssert: + # - 1 = 1s + # - 2 = 2s + # - 3 = 3s + # - 4 = 4s + register "PchPmSlpS4MinAssert" = "1" # 1s + # PchPmSlpSusMinAssert: + # - 1 = 0ms + # - 2 = 500ms + # - 3 = 1s + # - 4 = 4s + register "PchPmSlpSusMinAssert" = "3" # 1s + # PchPmSlpAMinAssert + # - 1 = 0ms + # - 2 = 4s + # - 3 = 98ms + # - 4 = 2s + 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 + # HD Audio register "PchHdaDspEnable" = "1" register "PchHdaAudioLinkHdaEnable" = "0" |