Ethernet DTS configure Common "kernel-6.1/arch/arm64/boot/dts/rockchip/rk3576-firefly-common.dtsi" &gmac0 { /* Use rgmii-rxid mode to disable rx delay inside Soc */ phy-mode = "rgmii-rxid"; clock_in_out = "output"; snps,reset-gpio = <&gpio2 RK_PB5 GPIO_ACTIVE_LOW>; snps,reset-active-low; /* Reset time is 20ms, 100ms for rtl8211f */ snps,reset-delays-us = <0 20000 100000>; pinctrl-names = "default"; pinctrl-0 = <ð0m0_miim ð0m0_tx_bus2 ð0m0_rx_bus2 ð0m0_rgmii_clk ð0m0_rgmii_bus ðm0_clk0_25m_out>; tx_delay = <0x21>; /* rx_delay = <0x3f>; */ phy-handle = <&rgmii_phy0>; status = "okay"; }; &mdio0 { status = "okay"; rgmii_phy0: phy@1 { compatible = "ethernet-phy-ieee802.3-c22"; reg = <0x1>; clocks = <&cru REFCLKO25M_GMAC0_OUT>; }; }; How to use dual Ethernet Android The dual Ethernet port is divided into internal network and external network. Note: The eth1 secondary network interface is a USB 2.0 extended network interface, so the maximum speed is 100M IP Addrs get from debug or adb by ifconfig ifconfig eth0 eth0 Link encap:Ethernet HWaddr 52:22:4b:e4:f8:3c Driver rk_gmac-dwmac inet addr:168.168.104.210 Bcast:168.168.255.255 Mask:255.255.0.0 inet6 addr: 240e:3b1:f175:9df0:ea6d:9993:33e6:202d/64 Scope: Global inet6 addr: 240e:3b1:f175:9df0:e0e8:b021:fc7a:dafc/64 Scope: Global inet6 addr: fe80::9cd8:e64d:b9c2:6f4/64 Scope: Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:229 errors:0 dropped:0 overruns:0 frame:0 TX packets:62 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:40526 TX bytes:6698 Interrupt:70 ifconfig eth1 eth1 Link encap:Ethernet HWaddr e2:76:ef:f2:13:4f Driver r8152 inet addr:168.168.105.2 Bcast:168.168.255.255 Mask:255.255.0.0 inet6 addr: 240e:3b1:f175:9df0:7355:7ec7:fed3:ecab/64 Scope: Global inet6 addr: 240e:3b1:f175:9df0:2e23:792d:f04a:2975/64 Scope: Global inet6 addr: fe80::564f:1114:e491:4bbd/64 Scope: Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:124 errors:0 dropped:1 overruns:0 frame:0 TX packets:18 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:12387 TX bytes:2072 PING Test eth0 ping -I eth0 -c 10 www.baidu.com PING www.a.shifen.com (14.215.177.38) from 168.168.104.210 eth0: 56(84) bytes of data. 64 bytes from 14.215.177.38: icmp_seq=1 ttl=55 time=9.45 ms 64 bytes from 14.215.177.38: icmp_seq=2 ttl=55 time=9.36 ms 64 bytes from 14.215.177.38: icmp_seq=3 ttl=55 time=10.0 ms 64 bytes from 14.215.177.38: icmp_seq=4 ttl=55 time=11.3 ms 64 bytes from 14.215.177.38: icmp_seq=5 ttl=55 time=41.7 ms 64 bytes from 14.215.177.38: icmp_seq=6 ttl=55 time=9.73 ms 64 bytes from 14.215.177.38: icmp_seq=7 ttl=55 time=9.28 ms 64 bytes from 14.215.177.38: icmp_seq=8 ttl=55 time=9.26 ms 64 bytes from 14.215.177.38: icmp_seq=9 ttl=55 time=9.50 ms 64 bytes from 14.215.177.38: icmp_seq=10 ttl=55 time=12.9 ms --- www.a.shifen.com ping statistics --- 10 packets transmitted, 10 received, 0% packet loss, time 9013ms rtt min/avg/max/mdev = 9.265/13.262/41.757/9.562 ms eth1 ping -I eth1 -c 10 168.168.4.168 PING 168.168.4.168 (168.168.4.168): 56 data bytes 64 bytes from 168.168.4.168: seq=0 ttl=64 time=2.408 ms 64 bytes from 168.168.4.168: seq=1 ttl=64 time=1.574 ms 64 bytes from 168.168.4.168: seq=2 ttl=64 time=1.669 ms 64 bytes from 168.168.4.168: seq=3 ttl=64 time=1.913 ms 64 bytes from 168.168.4.168: seq=4 ttl=64 time=1.666 ms 64 bytes from 168.168.4.168: seq=5 ttl=64 time=1.500 ms 64 bytes from 168.168.4.168: seq=6 ttl=64 time=1.631 ms 64 bytes from 168.168.4.168: seq=7 ttl=64 time=1.740 ms 64 bytes from 168.168.4.168: seq=8 ttl=64 time=1.590 ms 64 bytes from 168.168.4.168: seq=9 ttl=64 time=1.924 ms --- 168.168.4.168 ping statistics --- 10 packets transmitted, 10 packets received, 0% packet loss round-trip min/avg/max = 1.500/1.761/2.408 ms