root@am64xx-evm:~# ifconfig eth0: flags=4099 mtu 1500 ether 1c:63:49:1a:d8:aa txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 eth1: flags=4163 mtu 1500 inet6 fe80::72ff:76ff:fe1f:3dc6 prefixlen 64 scopeid 0x20 ether 70:ff:76:1f:3d:c6 txqueuelen 1000 (Ethernet) RX packets 1428 bytes 466444 (455.5 KiB) RX errors 0 dropped 9 overruns 0 frame 0 TX packets 1744 bytes 492128 (480.5 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 eth2: flags=4163 mtu 1500 inet6 fe80::72ff:76ff:fe1f:3dc6 prefixlen 64 scopeid 0x20 ether 70:ff:76:1f:3d:c6 txqueuelen 1000 (Ethernet) RX packets 110 bytes 19240 (18.7 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 134 bytes 22252 (21.7 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 eth3: flags=4163 mtu 1500 inet6 fe80::68fd:cfff:febb:7f83 prefixlen 64 scopeid 0x20 ether 6a:fd:cf:bb:7f:83 txqueuelen 1000 (Ethernet) RX packets 4254 bytes 1122576 (1.0 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1616 bytes 477212 (466.0 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 eth4: flags=4163 mtu 1500 inet6 fe80::68fd:cfff:febb:7f83 prefixlen 64 scopeid 0x20 ether 6a:fd:cf:bb:7f:83 txqueuelen 1000 (Ethernet) RX packets 1405 bytes 465633 (454.7 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1461 bytes 464996 (454.0 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 hsr0: flags=4163 mtu 1494 inet 192.168.10.20 netmask 255.255.255.0 broadcast 0.0.0.0 inet6 fe80::72ff:76ff:fe1f:3dc6 prefixlen 64 scopeid 0x20 ether 70:ff:76:1f:3d:c6 txqueuelen 1000 (Ethernet) RX packets 2 bytes 640 (640.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 17 bytes 1646 (1.6 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 hsr1: flags=4163 mtu 1494 inet 192.168.20.20 netmask 255.255.255.0 broadcast 0.0.0.0 inet6 fe80::68fd:cfff:febb:7f83 prefixlen 64 scopeid 0x20 ether 6a:fd:cf:bb:7f:83 txqueuelen 1000 (Ethernet) RX packets 87 bytes 17098 (16.6 KiB) RX errors 0 dropped 28 overruns 0 frame 0 TX packets 175 bytes 13970 (13.6 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (Local Loopback) RX packets 102 bytes 9606 (9.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 102 bytes 9606 (9.3 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 root@am64xx-evm:~# [86277.604545] icssg-prueth icssg0-eth eth2: Link is Down [86282.728316] icssg-prueth icssg0-eth eth2: Link is Up - 1Gbps/Full - flow control off [86286.819660] icssg-prueth icssg0-eth eth1: Link is Down [86292.965717] icssg-prueth icssg0-eth eth1: Link is Up - 1Gbps/Full - flow control off [86299.107512] icssg-prueth icssg1-eth eth4: Link is Down [86305.187288] icssg-prueth icssg1-eth eth3: Link is Down [86305.254134] icssg-prueth icssg1-eth eth4: Link is Up - 1Gbps/Full - flow control off [86308.259491] icssg-prueth icssg1-eth eth3: Link is Up - 1Gbps/Full - flow control off ^C root@am64xx-evm:~# dmesg | grep -i icssg0 [ 0.000000] Machine model: Texas Instruments AM642 EVM - ICSSG0 [ 9.068905] icssg-prueth icssg0-eth: TI PRU ethernet driver initialized: dual EMAC mode [ 10.854403] icssg-prueth icssg0-eth eth1: Link is Up - 1Gbps/Full - flow control off [85197.411542] icssg-prueth icssg0-eth eth1: Link is Down [85205.603549] icssg-prueth icssg0-eth eth1: Link is Up - 1Gbps/Full - flow control off [85209.699537] icssg-prueth icssg0-eth eth1: Link is Down [85210.726348] icssg-prueth icssg0-eth eth1: Link is Up - 1Gbps/Full - flow control off [85212.771548] icssg-prueth icssg0-eth eth1: Link is Down [85213.798520] icssg-prueth icssg0-eth eth1: Link is Up - 1Gbps/Full - flow control off [85214.819562] icssg-prueth icssg0-eth eth1: Link is Down [85215.843546] icssg-prueth icssg0-eth eth1: Link is Up - 1Gbps/Full - flow control off [85332.516785] icssg-prueth icssg0-eth eth2: Link is Up - 1Gbps/Full - flow control off [85606.713920] icssg-prueth icssg0-eth eth1: Link is Down [85606.760130] icssg-prueth icssg0-eth eth2: Link is Down [85608.960386] icssg-prueth icssg0-eth: Enabling HSR offload mode [85612.068653] icssg-prueth icssg0-eth eth1: Link is Up - 1Gbps/Full - flow control off [85613.092267] icssg-prueth icssg0-eth eth2: Link is Up - 1Gbps/Full - flow control off [85780.003873] icssg-prueth icssg0-eth eth1: Link is Down [85781.027860] icssg-prueth icssg0-eth eth2: Link is Down [85785.129954] icssg-prueth icssg0-eth eth1: Link is Up - 1Gbps/Full - flow control off [85786.148240] icssg-prueth icssg0-eth eth2: Link is Up - 1Gbps/Full - flow control off [85804.580293] icssg-prueth icssg0-eth eth1: Link is Down [85815.844251] icssg-prueth icssg0-eth eth1: Link is Up - 1Gbps/Full - flow control off [85828.132241] icssg-prueth icssg0-eth eth2: Link is Down [85834.278155] icssg-prueth icssg0-eth eth2: Link is Up - 1Gbps/Full - flow control off [86249.709971] icssg-prueth icssg0-eth eth1: Link is Down [86249.752967] icssg-prueth icssg0-eth eth2: Link is Down [86255.075774] icssg-prueth icssg0-eth eth1: Link is Up - 1Gbps/Full - flow control off [86256.100295] icssg-prueth icssg0-eth eth2: Link is Up - 1Gbps/Full - flow control off [86277.604545] icssg-prueth icssg0-eth eth2: Link is Down [86282.728316] icssg-prueth icssg0-eth eth2: Link is Up - 1Gbps/Full - flow control off [86286.819660] icssg-prueth icssg0-eth eth1: Link is Down [86292.965717] icssg-prueth icssg0-eth eth1: Link is Up - 1Gbps/Full - flow control off root@am64xx-evm:~# dmesg | grep -i icssg1 [ 9.143748] icssg-prueth icssg1-eth: port 1: using random MAC addr: 1a:91:70:eb:9d:fc [ 9.154379] icssg-prueth icssg1-eth: port 2: using random MAC addr: 9e:a1:cb:73:5a:8a [ 9.220768] icssg-prueth icssg1-eth: TI PRU ethernet driver initialized: dual EMAC mode [ 13.604608] icssg-prueth icssg1-eth eth4: Link is Up - 1Gbps/Full - flow control off [ 13.731824] icssg-prueth icssg1-eth eth3: Link is Up - 1Gbps/Full - flow control off [86026.482947] icssg-prueth icssg1-eth eth3: Link is Down [86026.512026] icssg-prueth icssg1-eth eth4: Link is Down [86028.707518] icssg-prueth icssg1-eth: Enabling HSR offload mode [86033.831408] icssg-prueth icssg1-eth eth3: Link is Up - 1Gbps/Full - flow control off [86034.919810] icssg-prueth icssg1-eth eth4: Link is Up - 1Gbps/Full - flow control off [86084.067275] icssg-prueth icssg1-eth eth4: Link is Down [86090.213203] icssg-prueth icssg1-eth eth4: Link is Up - 1Gbps/Full - flow control off [86093.219501] icssg-prueth icssg1-eth eth3: Link is Down [86098.339506] icssg-prueth icssg1-eth eth3: Link is Up - 1Gbps/Full - flow control off [86299.107512] icssg-prueth icssg1-eth eth4: Link is Down [86305.187288] icssg-prueth icssg1-eth eth3: Link is Down [86305.254134] icssg-prueth icssg1-eth eth4: Link is Up - 1Gbps/Full - flow control off [86308.259491] icssg-prueth icssg1-eth eth3: Link is Up - 1Gbps/Full - flow control off root@am64xx-evm:~# uname -a Linux am64xx-evm 6.1.80-rt26-00009-g12496ee3d815 #16 SMP PREEMPT_RT Tue May 20 11:34:20 CDT 2025 aarx root@am64xx-evm:~#