Re: pci in arch/powerpc vs arch/ppc

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

On Fri, Aug 03, 2007 at 05:58:56PM +0300, Alexandros Kostopoulos  
wrote:

quoted

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.

quoted

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