diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
index ee8e932628d17..2df16bfb901c2 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
@@ -170,6 +170,13 @@
 				/* IRQ_RTC_B -> IRQ0_B(CPLD) -> IRQ00(CPU), active low */
 				interrupts-extended = <&extirq 0 IRQ_TYPE_LEVEL_LOW>;
 			};
+
+			rtc@53 {
+				compatible = "nxp,pcf2131";
+				reg = <0x53>;
+				/* IRQ_RTC_B -> IRQ0_B(CPLD) -> IRQ00(CPU), active low */
+				interrupts-extended = <&extirq 0 IRQ_TYPE_LEVEL_LOW>;
+			};
 		};
 	};
 };