@@ -16,6 +16,7 @@ / {
compatible = "radxa,e20c", "rockchip,rk3528";
aliases {
+ ethernet0 = &gmac1;
mmc0 = &sdhci;
mmc1 = &sdmmc;
};
@@ -123,6 +124,17 @@ vccio_sd: regulator-vccio-sd {
};
};
+&gmac1 {
+ clock_in_out = "output";
+ phy-handle = <&rgmii_phy>;
+ phy-mode = "rgmii-id";
+ phy-supply = <&vcc_3v3>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&rgmii_miim>, <&rgmii_tx_bus2>, <&rgmii_rx_bus2>,
+ <&rgmii_rgmii_clk>, <&rgmii_rgmii_bus>;
+ status = "okay";
+};
+
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&i2c1m0_xfer>;
@@ -136,7 +148,25 @@ eeprom@50 {
};
};
+&mdio1 {
+ rgmii_phy: ethernet-phy@1 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <0x1>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&gmac1_rstn_l>;
+ reset-assert-us = <20000>;
+ reset-deassert-us = <100000>;
+ reset-gpios = <&gpio4 RK_PC2 GPIO_ACTIVE_LOW>;
+ };
+};
+
&pinctrl {
+ ethernet {
+ gmac1_rstn_l: gmac1-rstn-l {
+ rockchip,pins = <4 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
gpio-keys {
user_key: user-key {
rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;
The Radxa E20C has two GbE ports, LAN and WAN. The LAN port is provided using a GMAC controller and a YT8531C PHY and the WAN port is provided by an RTL8111H PCIe Ethernet controller. Enable support for the LAN port on Radxa E20C. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> --- Changes in v2: - Rebase on top of the "Support I2C controllers in RK3528" series [1] [1] https://lore.kernel.org/r/20250309070603.35254-1-ziyao@disroot.org --- .../boot/dts/rockchip/rk3528-radxa-e20c.dts | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+)