RK3568 开发板-安卓系统之以太网驱动调试（八）_专栏

4.5 以太网驱动调试

4.5.1 RTL8211F调试

4.5.1.1 查看原理图, 获取配置信息

图1

图2

图3

图4

4.5.1.2 需要配置的信息如下

1、RTL8211F是挂载到gmac0上的
2、RTL8211F采用的是rk3568内部的时钟
3、RTL8211F的复位引脚是GPIO1_B0, 且是低电位有效
4、RTL8211F的地址是1
5、RTL8211F是工作在RGMII模式

4.5.1.3 RTL8211的完整配置

&gmac0 {
    phy-mode = "rgmii";
    clock_in_out = "output";

    snps,reset-gpio = <&gpio1 RK_PB0 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>, <&cru CLK_MAC0_2TOP>;
    assigned-clock-rates = <0>, <125000000>;

    pinctrl-names = "default";
    pinctrl-0 = <&gmac0_miim
             &gmac0_tx_bus2
             &gmac0_rx_bus2
             &gmac0_rgmii_clk
             &gmac0_rgmii_bus
             &gmac_rst>;

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

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

&mdio0 {
    rgmii_phy0: phy@1 {
        compatible = "ethernet-phy-ieee802.3-c22";
        reg = <0x1>;
    };
};

4.5.2 YT8511C调试

4.5.2.1 查看原理图，获取配置信息

图5

图6

4.5.2.2 需要的配置信息如下

1、GMAC1用的是GMAC1_M1组的IO
2、复位引脚是GPIO3_B0
3、YT8511时钟是由晶振直接提供的，但又没有通过PY8511C给到rk3568, 所以即要用内部时钟，否则RK3568的内部phy就没有phy时钟了。
4、通过phy的地址为0b00100,即地址为4
5、YT8511C用的是RGMII接口

4.5.2.3 完整配置

&gmac1 {
    phy-mode = "rgmii";
    clock_in_out = "output";

    snps,reset-gpio = <&gpio3 RK_PB0 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_GMAC1_RX_TX>, <&cru SCLK_GMAC1>;
    assigned-clock-parents = <&cru SCLK_GMAC1_RGMII_SPEED>, <&cru CLK_MAC1_2TOP>;
    assigned-clock-rates = <0>, <125000000>;

    pinctrl-names = "default";
    pinctrl-0 = <&gmac1m1_miim
             &gmac1m1_tx_bus2
             &gmac1m1_rx_bus2
             &gmac1m1_rgmii_clk
             &gmac1m1_rgmii_bus
             &gmac1_rst>;

    tx_delay = <0x32>;
    rx_delay = <0x09>;

    phy-handle = <&rgmii_phy1>;
    status = "okay";
};

&mdio1 {
    rgmii_phy1: phy@4 {
        compatible = "ethernet-phy-ieee802.3-c22";
        reg = <0x4>;
    };
};

4.5.3 以太网测试

4.5.3.1 查看是否有以太网节点

rk3568_aybering:/ # ifconfig
eth0      Link encap:Ethernet  HWaddr ce:7e:e7:30:dd:5a  Driver rk_gmac-dwmac
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0
          Interrupt:43

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope: Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0

eth1      Link encap:Ethernet  HWaddr ca:7e:e7:30:dd:5a  Driver rk_gmac-dwmac
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:0
          Interrupt:55

dummy0    Link encap:Ethernet  HWaddr 6e:57:01:1d:92:d9
          inet6 addr: fe80::6c57:1ff:fe1d:92d9/64 Scope: Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 TX bytes:350

rk3568_aybering:/ #

可以看出，有两个以太网节点

4.5.3.2 测试eth0

将网线插入J17网口，等待一会后就会可以看到在状态栏（右上角）有以太网连接的图标<--->。执行命令查看IP地址和检查是否可以连网

rk3568_aybering:/ # ifconfig
eth0      Link encap:Ethernet  HWaddr ce:7e:e7:30:dd:5a  Driver rk_gmac-dwmac
          inet addr:192.168.0.195  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::d0de:70e4:84a6:c09a/64 Scope: Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10 errors:0 dropped:0 overruns:0 frame:0
          TX packets:17 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1376 TX bytes:2114
          Interrupt:43

    ...
rk3568_aybering:/ # ping www.baidu.com
PING www.baidu.com (14.215.177.39) 56(84) bytes of data.
64 bytes from 14.215.177.39: icmp_seq=1 ttl=55 time=6.34 ms
64 bytes from 14.215.177.39: icmp_seq=2 ttl=55 time=6.41 ms
64 bytes from 14.215.177.39: icmp_seq=3 ttl=55 time=5.92 ms
64 bytes from 14.215.177.39: icmp_seq=4 ttl=55 time=6.40 ms
^C
--- www.baidu.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3005ms
rtt min/avg/max/mdev = 5.925/6.271/6.410/0.223 ms
rk3568_aybering:/ #

4.5.3.3 测试eth1

将网线从J18网口拨下，插入J17网络接口，等待一会后就会可以看到在状态栏（右上角）有以太网连接的图标<--->。执行命令查看IP地址和检查是否可以连网

rk3568_aybering:/ # ifconfig
    ...

eth1      Link encap:Ethernet  HWaddr ca:7e:e7:30:dd:5a  Driver rk_gmac-dwmac
          inet addr:192.168.0.194  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::4a2f:fc05:f739:3fca/64 Scope: Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:33 errors:0 dropped:0 overruns:0 frame:0
          TX packets:19 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3689 TX bytes:2021
          Interrupt:55
    ...
rk3568_aybering:/ # ping www.baidu.com
PING www.baidu.com (14.215.177.38) 56(84) bytes of data.
64 bytes from 14.215.177.38: icmp_seq=1 ttl=55 time=7.66 ms
64 bytes from 14.215.177.38: icmp_seq=2 ttl=55 time=7.52 ms
64 bytes from 14.215.177.38: icmp_seq=3 ttl=55 time=7.78 ms
64 bytes from 14.215.177.38: icmp_seq=4 ttl=55 time=7.24 ms
64 bytes from 14.215.177.38: icmp_seq=5 ttl=55 time=7.72 ms
64 bytes from 14.215.177.38: icmp_seq=6 ttl=55 time=7.84 ms
^C
--- www.baidu.com ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5007ms
rtt min/avg/max/mdev = 7.241/7.629/7.841/0.224 ms
rk3568_aybering:/ #