ARM: dts: armada-388-clearfog: Utilize new DSA binding

Utilize the new DSA binding, introduced with commit 8c5ad1d6 ("net:
dsa: Document new binding"). The legacy binding node is kept included, but is
marked disabled.
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

arch/arm/boot/dts/armada-388-clearfog.dts

@@ -72,6 +72,8 @@ pcie@3,0 {
 	};
 
 	dsa@0 {
+		status = "disabled";
+
 		compatible = "marvell,dsa";
 		dsa,ethernet = <&eth1>;
 		dsa,mii-bus = <&mdio>;
@@ -203,6 +205,69 @@ rear_button_pins: rear-button-pins {
 	};
 };
 
+&mdio {
+	status = "okay";
+
+	switch@4 {
+		compatible = "marvell,mv88e6085";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <4>;
+		pinctrl-0 = <&clearfog_dsa0_clk_pins &clearfog_dsa0_pins>;
+		pinctrl-names = "default";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				label = "lan5";
+			};
+
+			port@1 {
+				reg = <1>;
+				label = "lan4";
+			};
+
+			port@2 {
+				reg = <2>;
+				label = "lan3";
+			};
+
+			port@3 {
+				reg = <3>;
+				label = "lan2";
+			};
+
+			port@4 {
+				reg = <4>;
+				label = "lan1";
+			};
+
+			port@5 {
+				reg = <5>;
+				label = "cpu";
+				ethernet = <&eth1>;
+				fixed-link {
+					speed = <1000>;
+					full-duplex;
+				};
+			};
+
+			port@6 {
+				/* 88E1512 external phy */
+				reg = <6>;
+				label = "lan6";
+				fixed-link {
+					speed = <1000>;
+					full-duplex;
+				};
+			};
+		};
+	};
+};
+
 &spi1 {
 	/*
 	 * Add SPI CS pins for clearfog: