arm64: allwinner: h6: add support for the Ethernet on Pine H64

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.

The PHY needs some time to start up, and the time is modelled as enable
ramp delay of the regulator.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>

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 48daec7f78ba7cf4e674687fca73ed976c3b5b4b..fcf3c1de4aa2361bc8ef8468013cc39ab6e4d879 100644 (file)
--- 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;
        };
 
@@ -41,6 +42,24 @@
        };
 };
 
+&emac {
+       pinctrl-names = "default";
+       pinctrl-0 = <&ext_rgmii_pins>;
+       phy-mode = "rgmii";
+       phy-handle = <&ext_rgmii_phy>;
+       phy-supply = <&reg_aldo2>;
+       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 {
        pinctrl-names = "default";
        pinctrl-0 = <&mmc0_pins>;
@@ -85,6 +104,7 @@
                                regulator-min-microvolt = <3300000>;
                                regulator-max-microvolt = <3300000>;
                                regulator-name = "vcc-ac200";
+                               regulator-enable-ramp-delay = <100000>;
                        };
 
                        reg_aldo3: aldo3 {