This is adrian's experiment for building freebsd-head images for the raspberry pi.

Specific bits here:

• It requires perl for bin/filter.pl. No, not sorry!
• It's all hard-coded paths in bin/build-rpi;
• I'm trying out the non-root build/install method
• .. which involves using METALOG from install, makefs and mkimg from FreeBSD-HEAD to do the dirty work;

Notes:

• For now the FDT blob from FreeBSD and the uboot loader are binaries in git.

• .. there's a port (and an update!) coming from one of the FreeBSD arm developers to make the Raspberry pi uboot a package and built using an external cross-toolchain. That'll replace needing the binary blobs there.

• .. the FDT blob is from FreeBSD-HEAD (from the "builddtb" target in the FreeBSD makefile system) but it unfortunately doesn't install it in a sane place to fetch it from (ie, it doesn't install the blob in the DESTDIR for some reason.)

  For now you can run the 'build-fdt' target to get the .dtb built; then copy it into the git repo you've checked out (in files/rpi/boot/).

Note it's an old uboot: put it in two places for now:

rpi.dtb devtree.dat

I'll update this README when I have a more up to date uboot.

How to use this?

Read bin/rpi-build. There's a bunch of targets. I'll write up some instructions later - since this is a private thing, I'm being obtuse and unhelpful for a reason. I'm hoping this will eventually end up in FreeBSD-HEAD as part of nanobsd, /not/ as this standalone thing.