Ethernet 使用

dts 配置

公共的配置

"kernel-6.1/arch/arm64/boot/dts/rockchip/rv1126b.dtsi"

   gmac: ethernet@21c70000 {
           compatible = "rockchip,rv1126b-gmac", "snps,dwmac-4.20a";
           reg = <0x21c70000 0x10000>;
           interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_HIGH>,
                        <GIC_SPI 197 IRQ_TYPE_LEVEL_HIGH>;
           interrupt-names = "macirq", "eth_wake_irq";
           rockchip,grf = <&grf>;
           rockchip,php_grf = <&ioc_grf>;
           clocks = <&cru CLK_GMAC_125M>, <&cru CLK_50M_GMAC_IOBUF_VI>,
                    <&cru PCLK_GMAC>, <&cru ACLK_GMAC>,
                    <&cru CLK_GMAC_PTP_REF>;
           clock-names = "stmmaceth", "clk_mac_ref",
                         "pclk_mac", "aclk_mac",
                         "ptp_ref";
           resets = <&cru SRST_ARESETN_GMAC>;
           reset-names = "stmmaceth";

           snps,mixed-burst;
           snps,tso;
           ...

板级的配置

"kernel-6.1/arch/arm64/boot/dts/rockchip/rv1126b-firefly-cam-
1126bq38.dtsi"

   #ifdef FF_GMAC
   &gmac {
           phy-mode = "rmii";
           clock_in_out = "input";

           snps,reset-gpio = <&gpio5 RK_PB4 GPIO_ACTIVE_LOW>;
           snps,reset-active-low;
           snps,reset-delays-us = <0 20000 150000>;

           pinctrl-names = "default";
           pinctrl-0 = <&ethm1_miim_pins
                        &ethm1_tx_bus2_pins
                        &ethm1_rx_bus2_pins
                        &ethm1_mclk_pins>;

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

   &mdio {
           rmii_phy: rmii-phy@1 {
                   compatible = "ethernet-phy-ieee802.3-c22";
                   reg = <0x1>;
           };
   };
   #endif

查看IP地址

双以太网口接入网络，可以通过调试串口或者adb来查看IP地址，比如
ifconfig eth0 eth0  Link encap:Ethernet  HWaddr 36:0a:d2:60:c9:05
Driver rk_gmac-dwmac       inet addr:168.168.101.68
Bcast:168.168.255.255  Mask:255.255.0.0        inet6 addr:
fe80::3290:2dc:3624:1dec/64 Scope: Link       UP BROADCAST RUNNING
MULTICAST  MTU:1500  Metric:1       RX packets:15804 errors:0
dropped:1 overruns:0 frame:0        TX packets:68 errors:0 dropped:0
overruns:0 carrier:0        collisions:0 txqueuelen:1000        RX
bytes:1811566 TX bytes:6748        Interrupt:75

连通性测试

eth0  ping -I eth0 -c 10 168.168.100.149
PING 168.168.100.149 (168.168.100.149) from 168.168.101.68 eth0:
56(84) bytes of data. 64 bytes from 168.168.100.149: icmp_seq=1 ttl=64
time=0.424 ms 64 bytes from 168.168.100.149: icmp_seq=2 ttl=64
time=0.561 ms 64 bytes from 168.168.100.149: icmp_seq=3 ttl=64
time=0.538 ms 64 bytes from 168.168.100.149: icmp_seq=4 ttl=64
time=0.507 ms 64 bytes from 168.168.100.149: icmp_seq=5 ttl=64
time=0.755 ms 64 bytes from 168.168.100.149: icmp_seq=6 ttl=64
time=0.657 ms 64 bytes from 168.168.100.149: icmp_seq=7 ttl=64
time=0.696 ms 64 bytes from 168.168.100.149: icmp_seq=8 ttl=64
time=0.784 ms 64 bytes from 168.168.100.149: icmp_seq=9 ttl=64
time=0.544 ms 64 bytes from 168.168.100.149: icmp_seq=10 ttl=64
time=0.750 ms  --- 168.168.100.149 ping statistics --- 10 packets
transmitted, 10 received, 0% packet loss, time 9058ms rtt
min/avg/max/mdev = 0.424/0.621/0.784/0.119 ms