The attached patch adds a kernel variant for mnt/reform systems.

  https://mntre.com/reform.html

I have boot tested it on a MNT/Reform2 rk3588 using Guix System, though
it may also work on other MNT/Reform variants to some degree.

Worked well enough to use sway as a desktop environment and run
librewolf while compiling it's own kernel (in ~37 minutes, on one test
build)!

Working hardware:

Built-in LCD Display
Keyboard
Trackball
USB
NVMe
SD
eMMC
serial
8 CPU cores (with frequency scaling, 4@1.2-2.4GHZ & 4@1.0-1.8GHz)
32GB of ram!

Flaky hardware:

Ethernet (workarounds available, may require updated libgpiod package)

Unsupported or untested hardware:

Wifi (DEBLOBBED, though uses mPCIe, so other cards are possible)
Sound (may need workarounds, untested)
HDMI output (untested)
Battery monitoring (requires out-of-tree module, workaround is
                    monitoring battery status on built-in OLED display!)


It does pull in a fair number of patches; Some patches have already
landed in linux-next in some form (device-tree for MNT/Reform rk3588),
and some others are on their way upstream.


Any suggestions on a better way to implement 'appy-reform-patches ... I
struggled for days trying to figure out how to get them applied in
(source (patches ... or (source (snippet ... but ultimately implementing
as a phase was the only way I could get it to work.

Is "patch --force" really a good idea? It seems a common pattern in
other packages that manually implement a patching phase, but reading the
patch manpage suggests it might potentially ignore patches failing to
apply in some cases.


I already have some ideas how to simplify the 'copy-reform-dts-files
phase (e.g. by moving the files into the right place in
reform-debian-packages to require less fiddly bits in the phase).


The 'adjust-makefiles-with-new-dtb phase could reasonably be implemented
as a regular patch instead of a few (substitute* ... calls.


Suggestions are very much welcome, especially with my very limited guile
skills. Took me several days to figure some of these out, mostly staring
at inscrutible guile tracebacks, and persistently trying again, so bear
with me!

Thanks!

live well,
  vagrant