diff --git a/plat/imx/imx8mm/imx8mm_bl31_setup.c b/plat/imx/imx8mm/imx8mm_bl31_setup.c
index 241d8fa..c6baf85 100644
--- a/plat/imx/imx8mm/imx8mm_bl31_setup.c
+++ b/plat/imx/imx8mm/imx8mm_bl31_setup.c
@@ -262,6 +262,9 @@
 
 void bl31_platform_setup(void)
 {
+	/* select the CKIL source to 32K OSC */
+	mmio_write_32(0x30360124, 0x1);
+
 	/* init the GICv3 cpu and distributor interface */
 	plat_gic_driver_init();
 	plat_gic_init();