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

Yixun Lan
2025-04-23T14:04:23Z

Add EMAC0 ethernet MAC support which found on A523 variant SoCs,
including the A527/T527 chips.

Signed-off-by: Yixun Lan <dlan@gentoo.org>
---
arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi | 42 ++++++++++++++++++++++++++
1 file changed, 42 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
index ee485899ba0af69f32727a53de20051a2e31be1d..c3ba2146c4b45f72c2a5633ec434740d681a21fb 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
@@ -126,6 +126,17 @@ pio: pinctrl@2000000 {
interrupt-controller;
#interrupt-cells = <3>;

+ emac0_pins: emac0-pins {
+ pins = "PH0", "PH1", "PH2", "PH3",
+ "PH4", "PH5", "PH6", "PH7",
+ "PH9", "PH10","PH13","PH14",
+ "PH15","PH16","PH17","PH18";
+ allwinner,pinmux = <5>;
+ function = "emac0";
+ drive-strength = <40>;
+ bias-pull-up;
+ };
+
mmc0_pins: mmc0-pins {
pins = "PF0" ,"PF1", "PF2", "PF3", "PF4", "PF5";
allwinner,pinmux = <2>;
@@ -409,6 +420,15 @@ 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 +541,28 @@ 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 = <&emac0_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