arm64: dts: renesas: r8a77995: draak: enable EthernetAVB

This patch enables EthernetAVB for R-Car D3 draak board.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm64/boot/dts/renesas/r8a77995-draak.dts

@@ -11,6 +11,7 @@
 
 /dts-v1/;
 #include "r8a77995.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "Renesas Draak board based on r8a77995";
@@ -18,6 +19,7 @@ / {
 
 	aliases {
 		serial0 = &scif2;
+		ethernet0 = &avb;
 	};
 
 	chosen {
@@ -37,6 +39,14 @@ &extal_clk {
 };
 
 &pfc {
+	avb0_pins: avb {
+		mux {
+			groups = "avb0_link", "avb0_phy_int", "avb0_mdc",
+				 "avb0_mii";
+			function = "avb0";
+		};
+	};
+
 	scif2_pins: scif2 {
 		groups = "scif2_data";
 		function = "scif2";
@@ -56,6 +66,21 @@ &ohci0 {
 	status = "okay";
 };
 
+&avb {
+	pinctrl-0 = <&avb0_pins>;
+	pinctrl-names = "default";
+	renesas,no-ether-link;
+	phy-handle = <&phy0>;
+	status = "okay";
+
+	phy0: ethernet-phy@0 {
+		rxc-skew-ps = <1500>;
+		reg = <0>;
+		interrupt-parent = <&gpio5>;
+		interrupts = <19 IRQ_TYPE_LEVEL_LOW>;
+	};
+};
+
 &scif2 {
 	pinctrl-0 = <&scif2_pins>;
 	pinctrl-names = "default";