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| author | Kane Chen <kane.chen@intel.com> | 2019-09-25 11:41:15 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-10-22 20:10:28 +0000 |
| commit | 0bc35af93326ec3232ec73c9b1334241b85f0252 (patch) | |
| tree | 13173cb7094e0c2045513d238b7278ba2a2d3284 /src/mainboard | |
| parent | 58e96705cbc78d3f1f330945b1f16b3fae277427 (diff) | |
| download | coreboot-0bc35af93326ec3232ec73c9b1334241b85f0252.tar.xz | |
mb/google/hatch: Enable PchPmSlpS0Vm075VSupport for hatch
On hatch and variant HW designs supports VCCPRIM_CORE Low Voltage Mode.
VCCPRIM_CORE can be down to 0.75v when slp_s0 is asserted.
This commit enables PchPmSlpS0Vm075VSupport UPD so that FSP can
program related setttings to save power.
BUG=b:134092071
TEST=Run suspend_stress_test on kohaku and pass 100 cycles
Change-Id: Ia02ff8823883489b36349457213409496f082f36
Signed-off-by: Kane Chen <kane.chen@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35596
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/hatch/variants/baseboard/devicetree.cb | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mainboard/google/hatch/variants/baseboard/devicetree.cb b/src/mainboard/google/hatch/variants/baseboard/devicetree.cb index 7382209264..a2831e1bba 100644 --- a/src/mainboard/google/hatch/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/hatch/variants/baseboard/devicetree.cb @@ -58,6 +58,8 @@ chip soc/intel/cannonlake register "PmTimerDisabled" = "1" + register "PchPmSlpS0Vm075VSupport" = "1" + # VR Settings Configuration for 4 Domains #+----------------+-------+-------+-------+-------+ #| Domain/Setting | SA | IA | GTUS | GTS | |