hello @tooz
It works, thanks a lot for your help 😀 I suppose I had a bad dtbo file.
linaro@linaro-alip:~$ sudo ip link set can0 up type can bitrate 125000 loopback on
linaro@linaro-alip:~$ sudo candump can0 &
[1] 1822
linaro@linaro-alip:~$ sudo cansend can0 abc#1122334455
can0 2BC [5] 11 22 33 44 55
can0 2BC [5] 11 22 33 44 55
Running on the version: Linux version 4.4.194 (leslie_yu@asus-docker-env) (gcc version 6.3.1 20170404 (Linaro GCC 6.3-2017.05) ) #52 SMP Tue Oct 26 08:35:58