pci in arch/powerpc vs arch/ppc

[Kumar Gala]

On Aug 3, 2007, at 3:10 PM, Scott Wood wrote:

> On Fri, Aug 03, 2007 at 05:58:56PM +0300, Alexandros Kostopoulos  
> wrote:
>> Hi all,
>> in the old arch/ppc tree, there was a function called  
>> pq2ads_setup_pci()
>> that set up PCI regs for 8272xx, in m82xx_pci.c. I was wandering,  
>> where
>> are these registers configured now in arch/powerpc? I can't seem  
>> to find
>> these code now.
>
> It's done by the firmware or the bootwrapper.

>> Also, I can see that now bus 0, dev 0 (which I think represents  
>> the host
>> bridge, right?) is now excluded using pq2_pci_exclude_device, but it
>> wasn't in older code. Why is that?
>
> The older code probably either excluded all host bridges by class, or
> just lived with the error message that gets printed on boot.

This will change in 2.6.24.  I've fixed the reason we excluded the  
host bridges on Freescale host bridges.

- k