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mb/google/fatcat: Disable C1 state auto-demotion for ES SoC

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This disables C1 state auto-demotion to run the coreboot with
Panther Lake ES SoC without an issue.
This configuration will be remove later once the related features
are fully verified.

BUG=b:373915085
TEST=Build fatcat and check the platform boots without an issue.

Change-Id: I384dba2918cfd04deb90284513c204fa8c21094b
Signed-off-by: Jamie Ryu <jamie.m.ryu@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84767
Reviewed-by: Dinesh Gehlot <digehlot@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Jayvik Desai <jayvik@google.com>
This commit is contained in:
Jamie Ryu 2024-10-14 22:26:57 -07:00 • committed by Subrata Banik
commit 0d7685e116
1 changed files with 4 additions and 0 deletions
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4
src/mainboard/google/fatcat/variants/baseboard/fatcat/devicetree.cb
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@ -33,6 +33,10 @@ chip soc/intel/pantherlake
# DPTF enable
register "dptf_enable" = "false"
# TODO: Safe Setting. Needs to be removed later
# Disable C1 C-state auto-demotion
register "disable_c1_state_auto_demotion" = "true"
# Enable CNVi BT
register "cnvi_bt_core" = "true"