rv1126-rv1109-以太网功能-eth-(修改gmac)

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新版回来,由于demo板是8211的芯片,考虑成本更换成了8201芯片,

于是主要考虑的是硬件引脚的差异,因为软件demo的8201已经跑通;

然后主要是修改dts即可

diff --git a/kernel/arch/arm/boot/dts/rv1109-38-v10-spi-nand.dts b/kernel/arch/arm/boot/dts/rv1109-38-v10-spi-nand.dts
index 87a4994c0..858b79c0e 100755
--- a/kernel/arch/arm/boot/dts/rv1109-38-v10-spi-nand.dts
+++ b/kernel/arch/arm/boot/dts/rv1109-38-v10-spi-nand.dts
@@ -162,21 +162,28 @@phy-mode = "rmii";clock_in_out = "output";-       snps,reset-gpio = <&gpio3 RK_PC5 GPIO_ACTIVE_LOW>;
+       snps,reset-gpio = <&gpio2 RK_PB2 GPIO_ACTIVE_LOW>;snps,reset-active-low;snps,reset-delays-us = <0 50000 50000>;-       assigned-clocks = <&cru CLK_GMAC_SRC>, <&cru CLK_GMAC_TX_RX>;
-       assigned-clock-parents = <&cru CLK_GMAC_SRC_M0>, <&cru RMII_MODE_CLK>;
+       assigned-clocks = <&cru CLK_GMAC_SRC_M1>, <&cru CLK_GMAC_SRC>, <&cru CLK_GMAC_TX_RX>;
+       assigned-clock-parents = <&cru CLK_GMAC_RGMII_M1>, <&cru CLK_GMAC_SRC_M1>, <&cru RMII_MODE_CLK>;assigned-clock-rates = <50000000>;pinctrl-names = "default";
-       pinctrl-0 = <&rmiim0_miim &rgmiim0_rxer &rmiim0_bus2 &rgmiim0_mclkinout_level0>;
+       pinctrl-0 = <&rmiim1_miim &rgmiim1_rxer &rmiim1_bus2 &rgmiim1_mclkinout_level0>;phy-handle = <&phy>;status = "okay";};&mdio {
-       phy: phy@0 {
+       phy: phy@1 {compatible = "ethernet-phy-ieee802.3-c22";
-               reg = <0x0>;
+               reg = <0x1>;};
};

就是重m0口更换到m1口,然后一直不行,询问才知道是没有验证过的硬件;

于是硬件在原厂支持做了以下修改

总结就是:

1.给CRS_DV加了个下拉

2.把主控给出的芯片频率从XTAL_IN改成XTAL_OUT

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原理图

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