I had a Hikey970 running Linux 4.9 (Ubuntu built by myself) and I want to build a 4.20 kernel for this board.
I’ve tried use menconfig myself but the kernel won’t boot up ( no console message after "Machine : Hikey970 ".
I’ve tried copy hikey970_defconfig from 4.9 kernel and it won’t boot up ether.
But according to the patch message and I quote
Add devicetree support for HiKey970 development board which
based on Hi3670 SoC and is also one of the 96Boards Consumer
Edition and AI platform.
Only UART6 is enabled which is the default console required
by the 96Boards Consumer Edition Specification.
This patch has been tested on HiKey970 Board.
No luck asking for tutorial from this Xu Wei guy.