Hi,
My problem is solved and CAN is working properly. Here is what is did
1. Made changes in /boot/uEnv.txt by adding device tree overlay.
2. After rebooting up using dmsg checked whether network interface is registered or not - it is showing CAN network registered.
3. After that I just configured nete interface using
sudo ip link set can0 type can bitrate xxxxxx , ip link set up can0
4. This is step what I was missing - changing pin configuration
config-pin P1.26/28 can
After this everything is working properly .
Thanks.
3.