diff --git a/src/soc/intel/apollolake/acpi.c b/src/soc/intel/apollolake/acpi.c
index 1449a36..5e42091 100644
--- a/src/soc/intel/apollolake/acpi.c
+++ b/src/soc/intel/apollolake/acpi.c
@@ -153,6 +153,9 @@
 
 void soc_fill_fadt(acpi_fadt_t *fadt)
 {
+	const struct soc_intel_apollolake_config *cfg;
+	struct device *dev = SA_DEV_ROOT;
+
 	fadt->pm_tmr_blk = ACPI_BASE_ADDRESS + PM1_TMR;
 
 	fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED;
@@ -166,6 +169,15 @@
 	fadt->x_pm_tmr_blk.space_id = 1;
 	fadt->x_pm_tmr_blk.bit_width = fadt->pm_tmr_len * 8;
 	fadt->x_pm_tmr_blk.addrl = ACPI_BASE_ADDRESS + PM1_TMR;
+
+	if (!dev || !dev->chip_info) {
+		printk(BIOS_ERR, "BUG! Could not find SOC devicetree config\n");
+		return;
+	}
+        cfg = dev->chip_info;
+
+	if(cfg->lpss_s0ix_enable)
+		fadt->flags |= ACPI_FADT_LOW_PWR_IDLE_S0;
 }
 
 void soc_power_states_generation(int core_id, int cores_per_package)