Try dan-and ( https://github.com/dan-and/BPI-M2U-bsp ) kernel 3.10.104 and see if it fix your issue.
What gcc are you using to build the kernel?
Try dan-and ( https://github.com/dan-and/BPI-M2U-bsp ) kernel 3.10.104 and see if it fix your issue.
What gcc are you using to build the kernel?