diff --git a/arch/powerpc/boot/dts/fsl/qoriq-sec4.2-0.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-sec4.2-0.dtsi
index 7990e0d..14c933b 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-sec4.2-0.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-sec4.2-0.dtsi
@@ -104,6 +104,14 @@ crypto: crypto@300000 {
 
 sec_mon: sec_mon@314000 {
        compatible = "fsl,sec-v4.2-mon", "fsl,sec-v4.0-mon";
+       #address-cells = <1>;
+       #size-cells = <1>;
+       ranges = <0 0x314000 0x1000>;
        reg = <0x314000 0x1000>;
        interrupts = <93 2 0 0>;
+
+       sec_mon_rtc_lp@34 {
+               compatible = "fsl,sec-v4.2-mon-rtc-lp", "fsl,sec-v4.0-mon-rtc-lp";
+               reg = <0x34 0x58>;
+       };
 };