Supporting extension ROMs and beyond...

[ron minnich]

On Sun, 17 Aug 2003, SONE Takeshi wrote:

> On Mon, Aug 11, 2003 at 05:21:06PM -0600, ron minnich wrote:
> > On Mon, 11 Aug 2003, YhLu wrote:
> > > I try to move the vgabios to freebios2 for 2880. I put the BIOS option rom
> > > to 0xfff8c000, ( the second 48k).
> > Looks, however, looke tehre is a bug ... Takeshi can perhaps address it 
> > better than I. 
> 
> PCI spec requires System BIOS to provide Bus/Dev/Fn of the device
> in AX register when calling option ROM during POST.
> This way multiple instances of same PCI device can be initialized
> one by one, I guess.
> 
> And, vgabios.c doesn't do that.

I have a fixed vgabios.c if anyone wants to test it that should now put 
bus/dev/fn in the ax register.

ron