M64 support armbian compile mainline linux code fixed gmac issue
download and copy to your armbian/build/patch/kernel/sunxi-next
test image download link, include ubuntu, debian 8/9 text and desktop image , all image support 64 bit and support to install docker.
google download link:
baidu cloud download link:
armbian have update M64 gmac patch. so can compile armbian kernel for BPI-M64 .