diff --git a/arch/arm/boot/dts/rk3066a-bqcurie2.dts b/arch/arm/boot/dts/rk3066a-bqcurie2.dts
index 8b479f7675615d77d8e69b1c5795c64565d24486..042f821d9e4d8bdbe0ab48722293278a86a44496 100644
--- a/arch/arm/boot/dts/rk3066a-bqcurie2.dts
+++ b/arch/arm/boot/dts/rk3066a-bqcurie2.dts
@@ -188,3 +188,7 @@
 &uart3 {
 	status = "okay";
 };
+
+&wdt {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/rk3066a.dtsi b/arch/arm/boot/dts/rk3066a.dtsi
index 9c34da4d8aad124e8117ec129642683c477fc126..879a818fba51797062b4f5e7cbca58dc14b4a863 100644
--- a/arch/arm/boot/dts/rk3066a.dtsi
+++ b/arch/arm/boot/dts/rk3066a.dtsi
@@ -425,3 +425,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart3_xfer>;
 };
+
+&wdt {
+	compatible = "rockchip,rk3066-wdt", "snps,dw-wdt";
+};
diff --git a/arch/arm/boot/dts/rk3188-radxarock.dts b/arch/arm/boot/dts/rk3188-radxarock.dts
index b7f34232e3d2d4b278163c51b3269f1b923a0881..171b610db709f9e4f94355c31d54d858d89a84c2 100644
--- a/arch/arm/boot/dts/rk3188-radxarock.dts
+++ b/arch/arm/boot/dts/rk3188-radxarock.dts
@@ -215,11 +215,13 @@
 };
 
 &uart2 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&uart2_xfer>;
 	status = "okay";
 };
 
 &uart3 {
 	status = "okay";
 };
+
+&wdt {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/rk3188.dtsi b/arch/arm/boot/dts/rk3188.dtsi
index 27215e0b5c3b5d21f2595a8c4f8d44f78d291240..ee801a9c6b74144e4a8153908a5e1ad07365bfef 100644
--- a/arch/arm/boot/dts/rk3188.dtsi
+++ b/arch/arm/boot/dts/rk3188.dtsi
@@ -400,3 +400,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart3_xfer>;
 };
+
+&wdt {
+	compatible = "rockchip,rk3188-wdt", "snps,dw-wdt";
+};
diff --git a/arch/arm/boot/dts/rk3xxx.dtsi b/arch/arm/boot/dts/rk3xxx.dtsi
index c6f05610ed2d231478d6f913463d60251cc0d44b..8caf85d839019ab1ed47690cf9bb4597de71b2f2 100644
--- a/arch/arm/boot/dts/rk3xxx.dtsi
+++ b/arch/arm/boot/dts/rk3xxx.dtsi
@@ -174,6 +174,14 @@
 		status = "disabled";
 	};
 
+	wdt: watchdog@2004c000 {
+		compatible = "snps,dw-wdt";
+		reg = <0x2004c000 0x100>;
+		clocks = <&cru PCLK_WDT>;
+		interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+	};
+
 	pwm2: pwm@20050020 {
 		compatible = "rockchip,rk2928-pwm";
 		reg = <0x20050020 0x10>;