i too am very interested in the CAN support.
I am currently writing a GTK GUI which browses CAN messages and it features a powerful CAN ID filter for listening/analyzing.
Up to now, i use a RaspberryPi and an Olimex AVR-CAN board connected via a RS232-to-USB converter.
It works very performant and stable, but anyway i would like to get rid of the additional hardware, so the Banana Pi would be the perfect platform for my project, as soon as CAN support will be available.
Writing the CAN driver for the AVR was very easy to do, but i am afraid i don't have enough linux kernel experience to do it for the Banana Pi.
Also, i haven't found sufficient docu of the A20 CAN registers.
I would be very happy about the CAN support available.
Also, i would happily help testing any available beta versions of CAN drivers.
Please let me know, when do you think, a CAN driver might be available for the BananaPi?
Thank you and best regards,