diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
index d5a6745409ae..ddcb3fff4cd4 100644
--- a/arch/arm/boot/dts/sun8i-r40.dtsi
+++ b/arch/arm/boot/dts/sun8i-r40.dtsi
@@ -229,6 +229,11 @@ uart0_pb_pins: uart0-pb-pins {
 			};
 		};
 
+		wdt: watchdog@1c20c90 {
+			compatible = "allwinner,sun4i-a10-wdt";
+			reg = <0x01c20c90 0x10>;
+		};
+
 		uart0: serial@1c28000 {
 			compatible = "snps,dw-apb-uart";
 			reg = <0x01c28000 0x400>;