For Linux Debain / Ubuntu you can try my kernel tree.
The config shouldn’t need changed but i do have NVME Enabled.
git clone https://github.com/Bigcountry907/linux.git -b hikey970-v4.9-Debain-Working
Make sure you use the branch. hikey970-v4.9-Debain-Working
Also this tree is configured to use EDID Helper and the resolution is set at 1920X1080.
You need to put 1920x1080.bin in /firmware/edid
On the hikey970 board.
Get the 1920x1080.bin from here.
Also you need to add this to the end of the grub.cfg commandline.
drm_kms_helper.edid_firmware=edid/1920x1080.bin video=HDMI-A-1:1920x1080@60e consoleblank=0
The grub.cfg is in 2 places and i edit both.
ON THE BOARD /boot/grub/grub.cfg
You have to mount boot-hikey970.uefi.img and then edit grub.cfg in
Alternatively you can flash your boot partition with boot-hikey970.uefi.img from here.
The boot image above is for ubuntu 18.04 but should work ok on other installs as long as you have the kernel Image and DTB Named Correctly.
Image-hikey970-v4.9.gz <<-- Yes Use The Gzipped Image
To install the kernel modules do.
make INSTALL_MOD_PATH=/mypath/forthemodules/ modules_install
Copy the lib/modules from /mypath/forthemodules/ to the /lib/modules on the board.