3. Ethernet 使用¶
3.1. dts 配置¶
3.1.1. 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;
...
3.1.2. 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 = <ðm1_miim_pins
ðm1_tx_bus2_pins
ðm1_rx_bus2_pins
ðm1_mclk_pins>;
phy-handle = <&rmii_phy>;
status = "okay";
};
&mdio {
rmii_phy: rmii-phy@1 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <0x1>;
};
};
#endif
3.1.3. 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
3.1.4. 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