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| author | Zhixing Ma <zhixing.ma@intel.com> | 2022-07-12 17:43:21 -0700 |
|---|---|---|
| committer | Nick Vaccaro <nvaccaro@google.com> | 2022-08-01 18:03:58 +0000 |
| commit | a47a4906353f8d534b0ce1d573082008decb8697 (patch) | |
| tree | 1e9e0e5af25ba8f403d064e6f6f14d22a23503c9 /src | |
| parent | 239b5df2687e30636688354c852cdca1bafbc80b (diff) | |
| download | coreboot-a47a4906353f8d534b0ce1d573082008decb8697.tar.gz coreboot-a47a4906353f8d534b0ce1d573082008decb8697.tar.bz2 coreboot-a47a4906353f8d534b0ce1d573082008decb8697.zip | |
mb/google/brya: Disable the Package C-state demotion
Disabling the Package C-state demotion feature for brya baseboard
as a work around to the S0ix issue and also this doesn't have any
impact on the power and performance measured and verified by the
PNP team.
This feature will be enabled after its functionality is verified with no
issues and also based on its impact on PNP.
BUG=none
BRANCH=firmware-brya-14505.B
TEST=Boot and verified that S0ix issue is resolved.
Signed-off-by: Zhixing Ma <zhixing.ma@intel.com>
Change-Id: Id3941c8870d41b25488c8ac5d38534fa94664d4a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65805
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/brya/variants/baseboard/skolas/devicetree.cb | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/baseboard/skolas/devicetree.cb b/src/mainboard/google/brya/variants/baseboard/skolas/devicetree.cb index b8349124ca74..039ba4c2ce8d 100644 --- a/src/mainboard/google/brya/variants/baseboard/skolas/devicetree.cb +++ b/src/mainboard/google/brya/variants/baseboard/skolas/devicetree.cb @@ -75,6 +75,10 @@ chip soc/intel/alderlake # Disable C state auto-demotion for all brya baseboards register "disable_c1_state_auto_demotion" = "1" + # FIXME: To be enabled in future based on PNP impact data. + # Disable Package C-state demotion for brya baseboard. + register "disable_package_c_state_demotion" = "1" + # Intel Common SoC Config #+-------------------+---------------------------+ #| Field | Value | |