This patch adds the support to enable/disable package c-state demotion
feature from the devicetree based on mainboard requirement.
Port of commit 4be8d9e80d ("soc/intel/adl: Add support to configure
package c-state demotion")
BUG=none
TEST=Boot to the OS on Google/Rex.
Snippet from FSP log:
[SPEW ] PkgCState Demotion : 0x1
Signed-off-by: Kapil Porwal <kapilporwal@google.com>
Change-Id: I0a4b0b181349ce41035524482add4336cf83a68b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71654
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
ae5bc43d3b