--- a/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
+++ b/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
@@ -467,6 +467,16 @@
 			};
 		};
 	};
+
+	mvsw61xx {
+		compatible = "marvell,88e6172";
+		status = "okay";
+		reg = <0x10>;
+
+		mii-bus = <&mdio>;
+		cpu-port-0 = <5>;
+		cpu-port-1 = <6>;
+	};
 };
 
 &pinctrl {
--- a/arch/arm/boot/dts/armada-385-linksys.dtsi
+++ b/arch/arm/boot/dts/armada-385-linksys.dtsi
@@ -309,6 +309,18 @@
 			};
 		};
 	};
+
+	mvsw61xx {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "marvell,88e6176";
+		status = "okay";
+		reg = <0x10>;
+
+		mii-bus = <&mdio>;
+		cpu-port-0 = <5>;
+		cpu-port-1 = <6>;
+	};
 };
 
 &pinctrl {