Re: ibm4xx pci (Re: IBM405GP/GPr OPB bus_space endian (powerpc/ibm4xx/dev/opb.c))

[Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>]

thorpej%shagadelic.org@localhost wrote:

> No, not on all ports.  Only on some platforms is the PCI-Host bridge  
> even visible in the PCI configuration space.  i386 happens to be one  
> such example.  Alpha is an example of where it is not.

Oh, I don't know that. Thanks.

> Also, on i386, the "pchb" device may, in fact, attach sub-PCI  
> devices ... there are some Serverworks chipsets where this is the  
> case, and some Intel ones, too.  The "pchb" device on i386 really is  
> an i386-specific device, and has no real MI concepts in it.

I agree i386 is a bit special, but in that case pchb is still
attached at pci, not mainbus. The problem on evbppc is using
the name of "pchb" for a driver attached at localbus (which
is the same one with mainbus on i386).
---
Izumi Tsutsui