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mb/intel/mtlrvp: disable acpi timer for xtal shutdown 

acpi timer needs to be disabled for xtal shutdown, requirement for platform
to enter deepest sleep state (s0i2.2).

BUG=b:274744845
TEST=Able to boot and verify S0ix is working

w/o this cl:
> iotools mmio_read32 0xfe0018fc
  0x0
> iotools mmio_read32 0xfe4018fc
  0x0

w/ this cl:
> iotools mmio_read32 0xfe0018fc
  0x2
> iotools mmio_read32 0xfe4018fc
  0x2

Change-Id: Ib87b7555217b6954fca98f95b86d03016cd9b783
Signed-off-by: Sukumar Ghorai <sukumar.ghorai@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75898
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Sukumar Ghorai 2023-06-16 10:45:11 -07:00 committed by Felix Held
parent f4a51abbc7
commit b26f0f924a
1 changed files with 3 additions and 0 deletions
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3
src/mainboard/intel/mtlrvp/Kconfig
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@ -122,4 +122,7 @@ config UART_FOR_CONSOLE
int
default 0
config USE_PM_ACPI_TIMER
default n
endif # BOARD_INTEL_MTLRVP_COMMON