diff --git a/arch/arm/boot/dts/kirkwood-dreamplug.dts b/arch/arm/boot/dts/kirkwood-dreamplug.dts
index 333f11b8550..a5376b84227 100644
--- a/arch/arm/boot/dts/kirkwood-dreamplug.dts
+++ b/arch/arm/boot/dts/kirkwood-dreamplug.dts
@@ -15,11 +15,10 @@
 		bootargs = "console=ttyS0,115200n8 earlyprintk";
 	};
 
-	serial@f1012000 {
-		compatible = "ns16550a";
-		reg = <0xf1012000 0x100>;
-		reg-shift = <2>;
-		interrupts = <33>;
-		clock-frequency = <200000000>;
+	ocp@f1000000 {
+		serial@12000 {
+			clock-frequency = <200000000>;
+			status = "ok";
+		};
 	};
 };
diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi
index 702b9555d01..825310b6d36 100644
--- a/arch/arm/boot/dts/kirkwood.dtsi
+++ b/arch/arm/boot/dts/kirkwood.dtsi
@@ -2,5 +2,29 @@
 
 / {
 	compatible = "mrvl,kirkwood";
-};
 
+	ocp@f1000000 {
+		compatible = "simple-bus";
+		ranges = <0 0xf1000000 0x1000000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		serial@12000 {
+			compatible = "ns16550a";
+			reg = <0x12000 0x100>;
+			reg-shift = <2>;
+			interrupts = <33>;
+			/* set clock-frequency in board dts */
+			status = "disabled";
+		};
+
+		serial@12100 {
+			compatible = "ns16550a";
+			reg = <0x12100 0x100>;
+			reg-shift = <2>;
+			interrupts = <34>;
+			/* set clock-frequency in board dts */
+			status = "disabled";
+		};
+	};
+};