diff --git a/plat/imx/imx8ulp/imx8ulp_psci.c b/plat/imx/imx8ulp/imx8ulp_psci.c
index 3a36332..628acea 100644
--- a/plat/imx/imx8ulp/imx8ulp_psci.c
+++ b/plat/imx/imx8ulp/imx8ulp_psci.c
@@ -10,6 +10,7 @@
 #include <arch_helpers.h>
 #include <common/debug.h>
 #include <drivers/arm/gicv3.h>
+#include <drivers/delay_timer.h>
 #include <lib/mmio.h>
 #include <lib/psci/psci.h>
 
@@ -404,6 +405,12 @@
 		;
 	}
 
+	/*
+	 * when resume from low power mode, need to delay for a while
+	 * before access the CMC register.
+	 */
+	udelay(5);
+
 	/* clear cluster's LPM setting. */
 	mmio_write_32(IMX_CMC1_BASE + 0x20, 0x0);
 	mmio_write_32(IMX_CMC1_BASE + 0x10, 0x0);