root@j7200-evm:~# ip link set can0 type can bitrate 1000000
root@j7200-evm:~# ip link set can1 type can bitrate 1000000
root@j7200-evm:~# ip link set can2 type can bitrate 1000000
root@j7200-evm:~# ip link set can3 type can bitrate 1000000
root@j7200-evm:~# ip link set can0 up
[  115.156606] IPv6: ADDRCONF(NETDEV_CHANGE): can0: link becomes ready
root@j7200-evm:~# ip link set can1 up
[  117.628746] IPv6: ADDRCONF(NETDEV_CHANGE): can1: link becomes ready
root@j7200-evm:~# ip link set can2 up
[  119.716692] IPv6: ADDRCONF(NETDEV_CHANGE): can2: link becomes ready
root@j7200-evm:~# ip link set can3 up
[  122.085234] IPv6: ADDRCONF(NETDEV_CHANGE): can3: link becomes ready
root@j7200-evm:~# candump can0 &
[1] 732
root@j7200-evm:~# [  129.811350] can: controller area network core
[  129.817158] NET: Registered PF_CAN protocol family
[  129.829299] can: raw protocol

root@j7200-evm:~# candump can1 &
[2] 736
root@j7200-evm:~# candump can2 &
[3] 737
root@j7200-evm:~# candump can3 &
[4] 738
root@j7200-evm:~# cansend can0 123#DEADBEEF
  can1  123   [4]  DE AD BE EF
  can0  123   [4]  DE AD BE EF
root@j7200-evm:~# cansend can1 123#DEADBEEF
  can0  123   [4]  DE AD BE EF
  can1  123   [4]  DE AD BE EF
root@j7200-evm:~# cansend can2 123#DEADBEEF
root@j7200-evm:~# cansend can3 123#DEADBEEF
[  158.490109] m_can_platform 2731000.can can3: bus-off
root@j7200-evm:~# uname -a
Linux j7200-evm 6.1.46-dirty #1 SMP PREEMPT Thu Mar 28 15:42:22 CDT 2024 aarch64 aarch64 aarch64 GNU/Linux
root@j7200-evm:~#