Re: Writing drivers for external IP cores

On Feb 12, 2008 4:54 AM, A. Nolson [off-list ref] wrote:

Hi ,

 I am going to start developing some IP cores for my virtex fx12 (ML403)
and I need to control them through my embedded Linux ( it is already
working in the ppc405 ).  I am a bit lost and I need some references for
developing drivers. In principle, I will start with something like a
GPIO. I think an example like a driver for controlling the push buttons
of my Ml403 will be enough. An example IP core for that will also be
also very helpful.

After you've got through the examples in Linux Device Drivers v3, you
can take a look at drivers/video/xilinxfb.c for an example of a driver
that works with an FPGA ip core.  Unfortunately there isn't a simple
xilinx GPIO driver in the mainline kernel at the moment, otherwise I'd
point you there.

Cheers,
g.

-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.