背景

rp-rv1126默认的千兆网络改为百兆网络

修改dts配置

修改rv1126_1109_common.dtsi文件，将phy-mode从rgmii改为rmii，时钟clock由输入改为输出，然后根据产品原理图修改对应的管脚配置，我这里的具体配置修改如下

 //1000M
 &gmac {
-       phy-mode = "rgmii";
-       clock_in_out = "input";
+       phy-mode = "rmii";
+       clock_in_out = "output";

-       snps,reset-gpio = <&gpio2 RK_PA5 GPIO_ACTIVE_LOW>;
+      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>;
+      snps,reset-delays-us = <0 50000 100000>;

-       assigned-clocks = <&cru CLK_GMAC_SRC>, <&cru CLK_GMAC_TX_RX>, <&cru CLK_GMAC_ETHERNET_OUT>;
-       assigned-clock-parents = <&cru CLK_GMAC_SRC_M0>, <&cru RGMII_MODE_CLK>;
-       assigned-clock-rates = <125000000>, <0>, <25000000>;
+       assigned-clocks = <&cru CLK_GMAC_SRC>, <&cru CLK_GMAC_TX_RX>;
+       assigned-clock-parents = <&cru CLK_GMAC_SRC_M1>, <&cru RMII_MODE_CLK>;
+       assigned-clock-rates = <0>, <50000000>;

        pinctrl-names = "default";
-       tx_delay = <0x37>;
-       rx_delay = <0x2e>;
-       pinctrl-0 = <&rgmiim0_pins &clk_out_ethernetm0_pins &gmac_clk_m0_pins>;
+       pinctrl-0 = <&rmiim1_pins &gmac_clk_m1_drv_level0_pins>;

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