soc/intel/adl: Set slp-s0 counter frequency
System sleep time (SLP_S0 signal asserted) is measured in ticks, for
Alder Lake soc in 122us (i.e. ~8197Hz) granularity/ticks.
BUG=b:301854636
TEST=/sys/devices/system/cpu/cpuidle/
low_power_idle_system_residency_us" will show system idle residency time
Change-Id: I449f7ed0d9ef891ae5266e8fd784a063a75e38eb
Signed-off-by: Marx Wang <marx.wang@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80665
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sukumar Ghorai <sukumar.ghorai@intel.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig
index b81bfdd..2d42cad 100644
--- a/src/soc/intel/alderlake/Kconfig
+++ b/src/soc/intel/alderlake/Kconfig
@@ -549,4 +549,9 @@
config HAVE_BMP_LOGO_COMPRESS_LZMA
default n
+config SOC_INTEL_COMMON_BLOCK_ACPI_SLP_S0_FREQ_HZ
+ default 0x2005
+ help
+ slp_s0_residency granularity in 122us ticks (i.e. ~8.2KHz).
+
endif