diff --git a/src/soc/intel/skylake/romstage/Makefile.inc b/src/soc/intel/skylake/romstage/Makefile.inc
index 00943bad38..194091f811 100644
--- a/src/soc/intel/skylake/romstage/Makefile.inc
+++ b/src/soc/intel/skylake/romstage/Makefile.inc
@@ -1,5 +1,6 @@
 verstage-y += cpu.c
 verstage-y += pch.c
+verstage-y += power_state.c
 verstage-y += report_platform.c
 verstage-y += romstage.c
 verstage-y += smbus.c
diff --git a/src/soc/intel/skylake/romstage/power_state.c b/src/soc/intel/skylake/romstage/power_state.c
index d91e197711..cbef09a96c 100644
--- a/src/soc/intel/skylake/romstage/power_state.c
+++ b/src/soc/intel/skylake/romstage/power_state.c
@@ -30,6 +30,7 @@
 #include <soc/pci_devs.h>
 #include <soc/pm.h>
 #include <soc/romstage.h>
+#include <vendorcode/google/chromeos/vboot_common.h>
 
 static struct chipset_power_state power_state CAR_GLOBAL;
 
@@ -151,3 +152,9 @@ struct chipset_power_state *fill_power_state(void)
 
 	return ps;
 }
+
+int vboot_platform_is_resuming(void)
+{
+	int typ = (inl(ACPI_BASE_ADDRESS + PM1_CNT) & SLP_TYP) >> SLP_TYP_SHIFT;
+	return typ == SLP_TYP_S3;
+}