Subject: Re: [PATCH] powerpc: Add MPC837x PCIE controller RC mode support

From: Li Li <[email-masked]>
Date: Thu, 03 Jan 2008 13:56:16 +0800

On Wed, 2008-01-02 at 23:23 +0800, Kumar Gala wrote:
> 
> On Jan 2, 2008, at 5:16 AM, Li Li wrote:
> 
> > * The MPC837x PCIE controller hardware resources and SerDes are  
> > initiated in u-boot. 
> > * Merge the MPC837x PCIE code into arch/powerpc/sysdev/fsl_pci.c 
> > * The MPC837x PCIE controller`s configure address bit field is
> uniqe: 
> >       bus number:             bits 31-24 
> >       device number:          bits 23-19 
> >       function number:        bits 18-16 
> >       ext reg number:         bits 11-8 
> >       reg number:             bits 7-2 
> > * Add mpc837x_exclude_device to fixup a controller bug.
> 
> what is the bug that is being worked around?
> 
For Type 0 configure transactions, the PCIE controller do not check the
device number bits and just assume the device number bits are 0.

- tony