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@xxxxxxxxx> --- 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@xxxxxxxxxxx --- .../boot/dts/rockchip/rk3528-radxa-e20c.dts | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts index 790cd18f29cb..f4984e036f38 100644 --- a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts +++ b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts @@ -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>; -- 2.48.1
