Ethernet DTS configure Common "kernel-5.10/arch/arm64/boot/dts/rockchip/rk3588-diff.dtsi" &gmac0 { /* Use rgmii-rxid mode to disable rx delay inside Soc */ phy-mode = "rgmii-rxid"; clock_in_out = "output"; snps,reset-gpio = <&gpio3 RK_PC7 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 = <&gmac0_miim &gmac0_tx_bus2 &gmac0_rx_bus2 &gmac0_rgmii_clk &gmac0_rgmii_bus>; tx_delay = <0x45>; //rx_delay = <0x4a>; phy-handle = <&rgmii_phy0>; status = "disbaled"; }; "kernel-5.10/arch/arm64/boot/dts/rockchip/rk3588-firefly-port.dtsi" &gmac1 { /* Use rgmii-rxid mode to disable rx delay inside Soc */ phy-mode = "rgmii-rxid"; clock_in_out = "output"; snps,reset-gpio = <&gpio3 RK_PB7 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 = <&gmac1_miim &gmac1_tx_bus2 &gmac1_rx_bus2 &gmac1_rgmii_clk &gmac1_rgmii_bus>; tx_delay = <0x42>; //rx_delay = <0x4f>; phy-handle = <&rgmii_phy1>; status = "disbaled"; }; Board "kernel-5.10/arch/arm64/boot/dts/rockchip/aio-3588l.dtsi" /* gamc0 */ &gmac0 { snps,reset-gpio = <&gpio3 RK_PC7 GPIO_ACTIVE_LOW>; tx_delay = <0x39>; status = "okay"; }; IP Addrs get from debug or adb by ifconfig 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 PING Test 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