Jawkins may look at the Iyonix port to x.org
Also I'll need to write some code in install/doinst.sh to do the 
pci bus stuff.

http://www.iyonix.com/linux.html
You may need to alter the 'BusID' line in your /etc/X11/XF86Config-4 file to match the physical location of your video card 
on the PCI bus. You can determine the correct value from the output of 'lspci' or the contents of /var/log/XFree86.0.log 
after running X.

Notes:

    * This archive contains a default XF86Config-4 file (in /etc/X11) which you should edit to suit your monitor. It is set 
to use 1280x1024 at 75Hz using 24bpp. You may wish to experiment with 'fbset -x' and 'xvidtune' to get usable parameters
    * The palette is incorrect in 15/16bbp modes. Stick to 8 and 24bpp. This may be fixed in future.


<@Chocky> ok, there are the generic ARM patches, which made it into X 4.3.  You clearly have those, or it would be crashing on
          your RiscPC.
<@Chocky> the nv driver I modified was against X 4.1.  It was already old and smelly when I did it.  And in fact, the nv driver
                itself, I pulled from upstream, so its version didn't even match 4.1.
<@Chocky> so even if I gave you my patches to the nv driver, it's unlikely that you'd be able to make them work against XFree or
          X.org as they are.

@Chocky> in the first instance, someone wasn't setting the VGA base address correctly.  so it was pissing about in zero page
                and crashing.
<@Chocky> on many non-x86 machines, the VGA registers are of course in PCI space
<@Chocky> under 4.3, I tried to make it work, but it was getting some address wrong, so it was being a lemon waiting for the
                FIFO to empty.
<@Chocky> I haven't had a chance to investigate further.
<@Chocky> and that's pretty much it
<@Chocky> oh yes, if it crashes, then it screws up on your console cursor.
<@Chocky> oh yeah, you need to ensure that access to the PCI space is uncached.  Or you can imagine what goes wrong.