The Linux 5.15 kernel has a DTB for the Reform 2 now. I have been unable to build a bootable kernel from it, or from the current master of Torvald’s repo. Is there a process for compiling a working mainline kernel.
Secondarily, I have only been able to use uncompressed kernels made from the Reform Image kernel. Is it possible to use a compressed kernel, or an initrd?
Thirdly, is there a good way to view and alter the environmental variables of the u-boot or to build and use an upstream u-boot or other bootloader?