Overlay 问题

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Xavier
1

请教一下 我想使用JAO里的RGMII接口，使用overlay方式，下述的代码是否有问题？
` /*

  • Device Tree Overlay file for the pinctrl_mcp23s08 driver.
  • the driver is being assigned to i2c bus 0.
  • You build this overlay file using te Device Tree Compiler on the machine (dtc)
  • The command used to build the device tree blob is:
  • dtc -@ -I dts -O dtb -o pinctrl_mcp23s08_ol.dtbo pinctrl_mcp23s08_ol.dts
    */

/dts-v1/;
/plugin/;

/{
compatible = “nvidia,p3737-0000+p3701-0000”;
overlay-name = “JAO-RGMII Overlay”;

fragment@0 {
	target-path = "/";
	__overlay__ {
        bus@0 {
                /* EQOS */
                ethernet@2310000 {
                    status = "okay";
                    nvidia,mac-addr-idx = <0>;
                    nvidia,mac-platform-mtu = <8000>;
                    /* 1=enable, 0=disable */
                    nvidia,pause_frames = <0>;
                    nvidia,phy-reset-gpio = <&tegra_main_gpio TEGRA234_MAIN_GPIO(G, 5) 0>;
                    phy-mode = "rgmii-id";
                    phy-handle = <&phy>;
                    /*
                    /delete-node/ fixed-link;
                    fixed-link {
                    speed = <0x3e8>;
                    full-duplex;
                    };
                    */
                    mdio {
                    compatible = "nvidia,eqos-mdio";
                    #address-cells = <1>;
                    #size-cells = <0>;

                    phy: phy@0 { /* phy@1 */
                        reg = <0>; /* reg = <1>;设备树的地址要对应上  按照官方的都是偏移1地址，MDIO连接不上，遂都改为0 */
                        nvidia,phy-rst-pdelay-msec = <224>; /* msec */
                        nvidia,phy-rst-duration-usec = <10000>; /* usec */
                        interrupt-parent = <&tegra_main_gpio>;
                        interrupts = <TEGRA234_MAIN_GPIO(G, 4) IRQ_TYPE_LEVEL_LOW>;
                    };
                    };
                };
            };
        };
    };
};`
4

Sorry for the late response.
Is this still an issue to support? Any result can be shared?

6

仍然是问题 请指导一下 非常感谢