Earlier today I pushed a fairy large patchset containing various functional improvements of many boards. If you have Allwinner board and some spare time:
1. Build DEV image/kernel with https://github.com/armbian/build (you need to add EXPERT="yes" to the config to unlock)
2. Install DEV kernel from beta repository
Optional Defreeze kernel updates
Switch to nightly kernel (armbian-config -> system -> Nightly)
Reboot
Switch to other kernel
Si I've tried to make Bluetooth work, but I've failed
I saw Igor added Arnarsoul's patch : https://github.com/armbian/build/blob/master/patch/kernel/sunxi-dev/0145-arm64-allwinner-a64-enable-Bluetooth-On-Pine64.patch
So I simply update the kernel and rebooted and I thought the uart would magically appear in the boot log but no :
root@pine64:~# dmesg | grep -i "serial\|uart\|bt\|blue\|tty"
[ 0.000000] Kernel command line: root=UUID=790ebccd-7548-41d1-8134-b