BPI-M2+ OV5640 camera linux driver is work fine

the steps:

• Edit /etc/modules and add the two line:
  ov5640
  vfe_v4l2

• Edit script.bin and make sure you have the OV5640 enabled
  search Armbian for the tools and how to edit it

• reboot with the sensor attached

• check if the sensor was recognized:
  dmesg | grep ov5640
  or
  dmesg | grep OK

• Always check for updates and fix and latest drivers as Igor has announced:
  http://image.armbian.com/

Hope it helps.