[J-core] Kernel patches series for J2 support via device tree

Rob Landley rob at landley.net
Sat Apr 30 19:46:22 EDT 2016

On 04/26/2016 09:51 PM, Rich Felker wrote:
> Attached is my current pending Linux kernel patch series for J2
> support, in git-am mbox format.

And here it is slightly fixed up to apply to current, and then gzipped
before attaching it so the mailing list archive doesn't try to expand it
inline and screw up the ability to download the attachment from the web
archive with serial_at_100 and friends. :)

To use this (from within linux git directory):

  gunzip file.gz
  git am file

Applies ok to git du jour (v4.6-rc5-221-g1b46bac).

You'll need Rich's https://github.com/richfelker/musl-cross-make to
build it:

  make ARCH=sh j2_defconfig
  make ARCH=sh CROSS_COMPILE=sh2eb-linux-muslfdpic- -j 3

Note: it'll need a root filesystem. The easiest thing to do is feed it
the files from here as an initramfs:



P.S. My old sh2 toolchain is segfaulting trying to build this, down in
some new crypto garbage. The real problem is kernel commit 798b2cbf9227
made the crypto menu unconditionally forced on, and there are now a
couple dozen symbols in there you CAN'T disable if you want IPv4
support. Things like 3DES that have NO BUSINESS being in a modern
system, but you can't switch them off if you want internet. Oh well,
that's modern Linux for you.
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