[coreboot-gerrit] Change in coreboot[master]: soc/intel/cannonlake: Disable ACPI PM timer to reduce S0ix power usage

[Aamir Bohra (Code Review)]

Aamir Bohra has uploaded a new patch set (#9) to the change originally created by Subrata Banik. ( https://review.coreboot.org/c/coreboot/+/34506 )

Change subject: soc/intel/cannonlake: Disable ACPI PM timer to reduce S0ix power usage
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soc/intel/cannonlake: Disable ACPI PM timer to reduce S0ix power usage

BRANCH=none
BUG=b:138152075
TEST=Build for cometlake board with the PmTimerDisabled policy in
devicetree set to 1.

With PmTimerDisabled = 0
> > iotools mmio_read8 0xfe0018fc

0x00

With PmTimerDisabled = 1
> > iotools mmio_read8 0xfe0018fc

0x02

Bit 1: ACPI Timer Disable (ACPI_TIM_DIS): This bit determines
whether the ACPI Timer is enabled to run.
- 0: ACPI Timer is enabled
- 1: ACPI Timer is disabled

Change-Id: I347c15c7b65fb4c19b9680f127980d4ddab8df51
Signed-off-by: Subrata Banik 
---
M src/mainboard/google/hatch/variants/baseboard/devicetree.cb
M src/soc/intel/cannonlake/fsp_params.c
2 files changed, 5 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/06/34506/9