arm64: dts: marvell: mcbin: enable the fourth network interface

This patch enables the fourth network interface on the Marvell
Macchiatobin. It is configured in the 2500Base-X PHY mode. The SFP cage
is also described.
Signed-off-by: NAntoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: NGregory CLEMENT <gregory.clement@bootlin.com>

arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts

@@ -27,6 +27,7 @@
 		ethernet0 = &cp0_eth0;
 		ethernet1 = &cp1_eth0;
 		ethernet2 = &cp1_eth1;
+		ethernet3 = &cp1_eth2;
 	};
 
 	/* Regulator labels correspond with schematics */
@@ -88,6 +89,18 @@
 		pinctrl-names = "default";
 		pinctrl-0 = <&cp1_sfpp1_pins &cp0_sfpp1_pins>;
 	};
+
+	sfp_eth3: sfp-eth3 {
+		/* CON3,4 - CPS lane 5 */
+		compatible = "sff,sfp";
+		i2c-bus = <&sfp_1g_i2c>;
+		los-gpio = <&cp0_gpio2 22 GPIO_ACTIVE_HIGH>;
+		mod-def0-gpio = <&cp0_gpio2 21 GPIO_ACTIVE_LOW>;
+		tx-disable-gpio = <&cp1_gpio1 24 GPIO_ACTIVE_HIGH>;
+		tx-fault-gpio = <&cp0_gpio2 19 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&cp0_sfp_1g_pins &cp1_sfp_1g_pins>;
+	};
 };
 
 &uart0 {
@@ -195,6 +208,10 @@
 		marvell,pins = "mpp47";
 		marvell,function = "gpio";
 	};
+	cp0_sfp_1g_pins: sfp-1g-pins {
+		marvell,pins = "mpp51", "mpp53", "mpp54";
+		marvell,function = "gpio";
+	};
 	cp0_pcie_pins: pcie-pins {
 		marvell,pins = "mpp52";
 		marvell,function = "gpio";
@@ -287,6 +304,17 @@
 	phys = <&cp1_comphy0 1>;
 };
 
+&cp1_eth2 {
+	/* CPS Lane 5 */
+	status = "okay";
+	/* Network PHY */
+	phy-mode = "2500base-x";
+	managed = "in-band-status";
+	/* Generic PHY, providing serdes lanes */
+	phys = <&cp1_comphy5 2>;
+	sfp = <&sfp_eth3>;
+};
+
 &cp1_pinctrl {
 	cp1_sfpp1_pins: sfpp1-pins {
 		marvell,pins = "mpp8", "mpp10", "mpp11";
@@ -300,6 +328,10 @@
 		marvell,pins = "mpp6", "mpp7";
 		marvell,function = "uart0";
 	};
+	cp1_sfp_1g_pins: sfp-1g-pins {
+		marvell,pins = "mpp24";
+		marvell,function = "gpio";
+	};
 	cp1_sfpp0_pins: sfpp0-pins {
 		marvell,pins = "mpp26", "mpp27", "mpp28", "mpp29";
 		marvell,function = "gpio";