Ethernet
DTS configure
Common
kernel/arch/arm64/boot/dts/rockchip/rk3568-firefly-port.dtsi
&gmac0 {
phy-mode = "rgmii";
clock_in_out = "input";
snps,reset-gpio = <&gpio2 RK_PD3 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>;
pinctrl-names = "default";
pinctrl-0 = <&gmac0_miim
&gmac0_tx_bus2
&gmac0_rx_bus2
&gmac0_rgmii_clk
&gmac0_rgmii_bus>;
tx_delay = <0x3c>;
rx_delay = <0x2f>;
phy-handle = <&rgmii_phy0>;
status = "disabled";
};
&gmac1 {
phy-mode = "rgmii";
clock_in_out = "input";
snps,reset-gpio = <&gpio2 RK_PD1 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>;
pinctrl-names = "default";
pinctrl-0 = <&gmac1m1_miim
&gmac1m1_tx_bus2
&gmac1m1_rx_bus2
&gmac1m1_rgmii_clk
&gmac1m1_rgmii_bus>;
tx_delay = <0x4f>;
rx_delay = <0x26>;
phy-handle = <&rgmii_phy1>;
status = "disabled";
};Board
kernel/arch/arm64/boot/dts/rockchip/rk3568-firefly-roc-pc.dtsi
&gmac0 {
status = "okay";
tx_delay = <0x4a>;
rx_delay = <0x2e>;
};
&gmac1 {
status = "okay";
tx_delay = <0x3e>;
rx_delay = <0x32>;
};
### How to use dual ethernet
Android dual ethernet had intranet and outer net.
* eth0 : extra,as intranet
* eth1 : main,as outer net

Android `Settings -> Network & internet -> Ethernet/Ethernet2`, can view the IP addresses of the mian and extra network.
#### IP Addrs
* get from debug or adb by ifconfig
ifconfig eth0 eth0 Link encap
HWaddr b2:d1:83:54:0e Driver rk_gmac-dwmac inet addr.168.1.102 Bcast.168.1.255 Mask.255.255.0 inet6 addr: fe80::721f:ee30:f2a3/64 Scope: Link UP BROADCAST RUNNING MULTICAST MTU Metric RX packets errors dropped overruns frame TX packets errors dropped overruns carrier collisions txqueuelen RX bytes TX bytes Interruptifconfig eth1 eth1 Link encap
HWaddr ae:d1:83:54:0e Driver rk_gmac-dwmac inet addr.168.108.98 Bcast.168.255.255 Mask.255.0.0 inet6 addr: fe80::641:354:8888/64 Scope: Link UP BROADCAST RUNNING MULTICAST MTU Metric RX packets errors dropped overruns frame TX packets errors dropped overruns carrier collisions txqueuelen RX bytes TX bytes Interrupt
#### PING Test
* eth0
ping -I eth0 -c 10 192.168.1.1 PING 192.168.1.1 (192.168.1.1) from 192.168.1.102 eth0: 56(84) bytes of data. 64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.936 ms 64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=1.10 ms 64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.962 ms 64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=0.959 ms 64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=1.14 ms 64 bytes from 192.168.1.1: icmp_seq=6 ttl=64 time=0.966 ms 64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=1.02 ms 64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=1.03 ms 64 bytes from 192.168.1.1: icmp_seq=9 ttl=64 time=1.03 ms 64 bytes from 192.168.1.1: icmp_seq=10 ttl=64 time=1.04 ms
--- 192.168.1.1 ping statistics --- 10 packets transmitted, 10 received, 0% packet loss, time 9015ms rtt min/avg/max/mdev = 0.936/1.020/1.144/0.063 ms
* eth1
ping -I eth1 -c 10 www.baidu.com PING www.a.shifen.com (14.215.177.39) from 168.168.108.98 eth1: 56(84) bytes of data. 64 bytes from 14.215.177.39: icmp_seq=1 ttl=56 time=8.03 ms 64 bytes from 14.215.177.39: icmp_seq=2 ttl=56 time=5.61 ms 64 bytes from 14.215.177.39: icmp_seq=3 ttl=56 time=5.46 ms 64 bytes from 14.215.177.39: icmp_seq=4 ttl=56 time=5.35 ms 64 bytes from 14.215.177.39: icmp_seq=5 ttl=56 time=5.68 ms 64 bytes from 14.215.177.39: icmp_seq=6 ttl=56 time=5.59 ms 64 bytes from 14.215.177.39: icmp_seq=7 ttl=56 time=5.70 ms 64 bytes from 14.215.177.39: icmp_seq=8 ttl=56 time=5.54 ms 64 bytes from 14.215.177.39: icmp_seq=9 ttl=56 time=5.74 ms 64 bytes from 14.215.177.39: icmp_seq=10 ttl=56 time=5.43 ms
--- www.a.shifen.com ping statistics --- 10 packets transmitted, 10 received, 0% packet loss, time 9015ms rtt min/avg/max/mdev = 5.354/5.816/8.031/0.753 ms

