Move wireless firmware to OFW device tree?

[Marcelo Tosatti]

(moving to olpc-devel)

On Sat, Jan 27, 2007 at 02:53:07AM +0100, Arnd Bergmann wrote:

> Since we now have an Open Firmware based system, the libertas firmware
> could be stored inside of the firmware device tree. The most significant
> advantage of that is that you can boot with the libertas driver enabled
> before mounting the file system.
> 
> Another advantage is that if we get a forth implementation of the driver
> that can do PXE boot, the open firmware can use the same copy of the
> libertas firmware blob as Linux.

Yeah, it does make sense to do it. However, we would have to think about
the firmware upgrade process. This is sorted out now since its currently
packed as an RPM on-flash.

My knowledge one the OFW device tree is rather limited, can you store
binary blob's such as firmware in it? Are any other architectures doing
that already?

BTW, how's the OF driver implementation work going?