[PATCH 5/5] arm64: allwinner: h6: add support for the Ethernet on Pine H64

[Icenowy Zheng]

The Pine H64 board has an Ethernet port, which is connected to a
RTL8211E PHY, then the PHY is connected to the MAC on H6 SoC.

Add support for the Ethernet port.

Signed-off-by: Icenowy Zheng <icenowy@xxxxxxx>
---
 .../boot/dts/allwinner/sun50i-h6-pine-h64.dts | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
index ceffc40810ee..b168b3b8a9ad 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-pine-h64.dts
@@ -14,6 +14,7 @@
 	compatible = "pine64,pine-h64", "allwinner,sun50i-h6";
 
 	aliases {
+		ethernet0 = &emac;
 		serial0 = &uart0;
 	};
 
@@ -39,6 +40,34 @@
 			gpios = <&r_pio 0 7 GPIO_ACTIVE_HIGH>; /* PL7 */
 		};
 	};
+
+	reg_gmac_3v3: gmac-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc-gmac-3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <100000>;
+		gpio = <&pio 2 16 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+};
+
+&emac {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ext_rgmii_pins>;
+	phy-mode = "rgmii";
+	phy-handle = <&ext_rgmii_phy>;
+	phy-supply = <&reg_gmac_3v3>;
+	allwinner,rx-delay-ps = <200>;
+	allwinner,tx-delay-ps = <200>;
+	status = "okay";
+};
+
+&mdio {
+	ext_rgmii_phy: ethernet-phy@1 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <1>;
+	};
 };
 
 &mmc0 {
-- 
2.18.0