dts:mc3: Improve ethernet configuration

Now the correct phy reg is set explicitly. Use the driver specific bindings
for the phy reset and set the correct reset timings.

BCS 746-000932

arch/arm64/boot/dts/seconorth/mc3.dtsi

@@ -32,14 +32,6 @@ memory@40000000 {
 		reg = <0x0 0x40000000 0 0x40000000>;
 	};
 
-	phy_reset: phy-reset {
-		compatible = "gpio-reset";
-		reset-gpios = <&gpio3 25 GPIO_ACTIVE_LOW>;
-		reset-delay-us = <2000>;
-		reset-post-delay-ms = <40>;
-		#reset-cells = <0>;
-	};
-
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
@@ -184,8 +176,10 @@ &eqos {
 	pinctrl-0 = <&pinctrl_eqos>;
 	phy-mode = "rgmii-id";
 	phy-handle = <&ethphy0>;
-	resets = <&phy_reset>;
 	reset-names = "stmmaceth";
+	snps,reset-gpio = <&gpio3 25 GPIO_ACTIVE_LOW>;
+	snps,reset-active-low;
+	snps,reset-delays-us = <0 10000 50000>;
 	status = "okay";
 
 	mdio {
@@ -193,7 +187,8 @@ mdio {
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		ethphy0: ethernet-phy@-1 {
+		ethphy0: ethernet-phy@1 {
+			reg = <1>;
 			compatible = "ethernet-phy-ieee802.3-c22";
 			eee-broken-1000t;
 			eee-broken-100tx;