diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi
index 566af323c4f9..d12da339d0e2 100644
--- a/arch/arm/boot/dts/at91sam9n12.dtsi
+++ b/arch/arm/boot/dts/at91sam9n12.dtsi
@@ -425,6 +425,12 @@ spi1: spi@f0004000 {
 				pinctrl-0 = <&pinctrl_spi1>;
 				status = "disabled";
 			};
+
+			watchdog@fffffe40 {
+				compatible = "atmel,at91sam9260-wdt";
+				reg = <0xfffffe40 0x10>;
+				status = "disabled";
+			};
 		};
 
 		nand0: nand@40000000 {
diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index dad83328bfdd..56350646a034 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -663,6 +663,12 @@ spi1: spi@f0004000 {
 				status = "disabled";
 			};
 
+			watchdog@fffffe40 {
+				compatible = "atmel,at91sam9260-wdt";
+				reg = <0xfffffe40 0x10>;
+				status = "disabled";
+			};
+
 			rtc@fffffeb0 {
 				compatible = "atmel,at91sam9x5-rtc";
 				reg = <0xfffffeb0 0x40>;