[LinuxBIOS] PCI max buses - Simple solution

[yhlu]

For K8, I put second chain on 0x40, third chain on 0x80, and fourth
chain on 0xc0.

YH

On 4/22/06, Richard Smith <smithbone at gmail.com> wrote:
> On 4/22/06, Stefan Reinauer <stepan at coresystems.de> wrote:
> > * yhlu <yinghailu at gmail.com> [060422 06:37]:
> > > we already have
> > > pci_locate_device().
> > > pci_locate_device_on_bus(...unsigned bus).
> >
> > Cool! I guess most of us just did not know about that.
> >
> > static device_t pci_locate_device_on_bus(unsigned pci_id, unsigned bus)
> >
> > is defined in romcc_io.h and does exactly what is needed in this case.
> > Firewire on the Epia is always on bus 0.
>
> Ok so the "right" solution for the epia-m is to change
> pci_locate_device() to pci_locate_device_on_bus(0);
>
> Eric:  Please confirm that it fixes your problem.
>
> That still leaves the outstanding issue that pci_locate_device() will
> pause for long periods if it can't find a device.  And probing the
> entire pci space may not be a good thing anyway.
>
> I would propose that pci_locate_device still needs a hard cap.
>
> Whats the maximum number of PCI buses that any one has ever seen on one board?
>
> --
> Richard A. Smith
>