diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig
index 76bcbf9a7c..5a6ac7f9c2 100644
--- a/src/soc/intel/alderlake/Kconfig
+++ b/src/soc/intel/alderlake/Kconfig
@@ -74,6 +74,7 @@ config CPU_SPECIFIC_OPTIONS
 	select SOC_INTEL_COMMON_BLOCK_ACPI_CPPC
 	select SOC_INTEL_COMMON_BLOCK_ACPI_CPU_HYBRID
 	select SOC_INTEL_COMMON_BLOCK_ACPI_GPIO
+	select SOC_INTEL_COMMON_BLOCK_ACPI_LPIT
 	select SOC_INTEL_COMMON_BLOCK_ACPI_PEP
 	select SOC_INTEL_COMMON_BLOCK_ACPI_PEP_LPM_REQ
 	select SOC_INTEL_COMMON_BLOCK_CAR
diff --git a/src/soc/intel/alderlake/include/soc/pmc.h b/src/soc/intel/alderlake/include/soc/pmc.h
index d1e63bc5cf..5caa71afff 100644
--- a/src/soc/intel/alderlake/include/soc/pmc.h
+++ b/src/soc/intel/alderlake/include/soc/pmc.h
@@ -136,6 +136,8 @@ extern struct device_operations pmc_ops;
 #define   HPR_CAUSE0_MI_HRPC		(1 << 9)
 #define   HPR_CAUSE0_MI_HR		(1 << 8)
 
+#define SLP_S0_RES			0x193c
+
 #define CPPMVRIC			0x1B1C
 #define   XTALSDQDIS			(1 << 22)