amdk8_scan_chains() questions

[Stefan Reinauer]

* Liu Tao <liutao at safe-mail.net> [040922 04:57]:
>    I googled some results of amdk8 linuxbios, and seems
> after dev_enumerate() AMD8111 is not at bus0. So does
> it mean when we are running from the BIOS ROM the
> IO HUB must be at bus0, and when we are running in RAM
> the bus number doesn't matter?

I think to remember that Linux wants the IO Hub to hang off bus 0 as
well. Which is why some ports reversed the probe order to achieve this.
Maybe there is a more correct and generic solution to this?

Stefan