diff options
| author | Subrata Banik <subratabanik@google.com> | 2023-06-14 23:43:08 +0530 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2023-06-16 08:04:06 +0000 |
| commit | 82226f6e5c9a08ca9635ff9374346edc8d6cba1f (patch) | |
| tree | ee1a8ac91e5f83b5ca14115fef3e0ace79b8e68e /Documentation/AMD-S3.txt | |
| parent | bf8f57d618148ba324dfbbbac165e2a454fbff80 (diff) | |
soc/intel/meteorlake: Disable ACPI PM timer using IOE.PMC
This patch disables the ACPI PM timer which is necessary for XTAL OSC
shutdown. Also, disabling ACPI PM timer switches off TCO.
BUG=b:274744845
TEST=Able to boot and verify S0ix is working even with EC reset and
cold boot scenarios.
w/o this cl:
> iotools mmio_read32 0xfe4018fc
0x0
w/ this cl:
> iotools mmio_read32 0xfe4018fc
0x2
Change-Id: Ibb6e145f67dba7270e0a322ef414bf1cb09c5eda
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75822
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Diffstat (limited to 'Documentation/AMD-S3.txt')
0 files changed, 0 insertions, 0 deletions