rockchip/rk356x/rp-gmac0-pro-rk3568.dtsi

&gmac0 {
        phy-mode = "rgmii";
        clock_in_out = "input";
        snps,reset-gpio = <&gpio2 RK_PC5 GPIO_ACTIVE_LOW>;
        snps,reset-active-low;
        /* Reset time is 20ms, 100ms for rtl8211f */
        snps,reset-delays-us = <0 20000 100000>;

        assigned-clocks = <&cru SCLK_GMAC0_RX_TX>, <&cru SCLK_GMAC0>;
        assigned-clock-parents = <&cru SCLK_GMAC0_RGMII_SPEED>, <&gmac0_clkin>;
        assigned-clock-rates = <0>, <125000000>;

        pinctrl-names = "default";
        pinctrl-0 = <&gmac0_miim
                    &gmac0_tx_bus2
                    &gmac0_rx_bus2
                    &gmac0_rgmii_clk_level2
                    &gmac0_rgmii_bus
                    &gmac0_clkinout>;


        tx_delay = <0x3c>;
        rx_delay = <0x2f>;

        phy-handle = <&rgmii_phy0>;
        status = "okay";
};


&mdio0 {
    rgmii_phy0: phy@0 {
        compatible = "ethernet-phy-ieee802.3-c22";
        reg = <0x0>;
    };
};