[PATCH v2 3/5] arm64: dts: allwinner: a523: Add EMAC0 ethernet MAC

[Yixun Lan]

Add EMAC0 ethernet MAC support which found on A523 variant SoCs,
including the A527/T527 chips. MAC0 is compatible to the A64 chip which
requires an external PHY. This patch only add RGMII pins for now.

Signed-off-by: Yixun Lan <dlan@xxxxxxxxxx>
---
 arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi | 40 ++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
index ee485899ba0af69f32727a53de20051a2e31be1d..c9a9b9dd479af05ba22fe9d783e32f6d61a74ef7 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
@@ -126,6 +126,15 @@ pio: pinctrl@2000000 {
 			interrupt-controller;
 			#interrupt-cells = <3>;
 
+			rgmii0_pins: rgmii0-pins {
+				pins = "PH0", "PH1", "PH2", "PH3", "PH4",
+				       "PH5", "PH6", "PH7", "PH9", "PH10",
+				       "PH14", "PH15", "PH16", "PH17", "PH18";
+				allwinner,pinmux = <5>;
+				function = "emac0";
+				drive-strength = <40>;
+			};
+
 			mmc0_pins: mmc0-pins {
 				pins = "PF0" ,"PF1", "PF2", "PF3", "PF4", "PF5";
 				allwinner,pinmux = <2>;
@@ -409,6 +418,15 @@ i2c5: i2c@2503400 {
 			#size-cells = <0>;
 		};
 
+		syscon: syscon@3000000 {
+			compatible = "allwinner,sun55i-a523-system-control",
+				     "allwinner,sun50i-a64-system-control";
+			reg = <0x03000000 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+		};
+
 		gic: interrupt-controller@3400000 {
 			compatible = "arm,gic-v3";
 			#address-cells = <1>;
@@ -521,6 +539,28 @@ ohci1: usb@4200400 {
 			status = "disabled";
 		};
 
+		emac0: ethernet@4500000 {
+			compatible = "allwinner,sun55i-a523-emac0",
+				     "allwinner,sun50i-a64-emac";
+			reg = <0x04500000 0x10000>;
+			clocks = <&ccu CLK_BUS_EMAC0>;
+			clock-names = "stmmaceth";
+			resets = <&ccu RST_BUS_EMAC0>;
+			reset-names = "stmmaceth";
+			interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "macirq";
+			pinctrl-names = "default";
+			pinctrl-0 = <&rgmii0_pins>;
+			syscon = <&syscon>;
+			status = "disabled";
+
+			mdio0: mdio {
+				compatible = "snps,dwmac-mdio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+		};
+
 		r_ccu: clock-controller@7010000 {
 			compatible = "allwinner,sun55i-a523-r-ccu";
 			reg = <0x7010000 0x250>;

-- 
2.49.0