Compile Debian Firmware

This chapter introduces the compilation process of Debian firmware. It
is recommended to develop under Ubuntu 18.04 system environment. If
you use other system versions, you may need to adjust the compilation
environment accordingly.

Compile

The only difference between the compilation method of Debian firmware
and Ubuntu is the use of different filesystems, other steps including
configuration files are exactly the same.

So please refer to

Compile Ubuntu firmware

Now only introduce the difference: replacing of filesystem

Download Debian filesystem

Download ：Debian rootfs(64-bit)，and put it in the SDK

Decompress

   7z x Debian10-xxxx_RK3568_xxxx.7z

Put rootfs under ubuntu_rootfs/

   mkdir ubuntu_rootfs
   mv Debian10-xxxx_RK3568_xxxx.img ubuntu_rootfs/

Create a symbolic link to rk356x_ubuntu_rootfs.img

   cd ubuntu_rootfs
   ln -sf Debian10-xxxx_RK3568_xxxx.img rk356x_ubuntu_rootfs.img

Then follow the normal steps just like you are compiling ubuntu
firmware