[PATCH]: Add 8548 pcie bus number workaround

Zhang Wei-r63237 Wei.Zhang at freescale.com
Thu Jun 7 18:54:16 EST 2007


MPC8641 v2.0 have fixed the errata. And v1.0 is not supported.

Wei.

> -----Original Message-----
> From: linuxppc-dev-bounces+wei.zhang=freescale.com at ozlabs.org 
> [mailto:linuxppc-dev-bounces+wei.zhang=freescale.com at ozlabs.or
> g] On Behalf Of Kumar Gala
> Sent: Thursday, June 07, 2007 2:49 PM
> To: Zang Roy-r61911
> Cc: linuxppc-dev list; Paul Mackerras
> Subject: Re: [PATCH]: Add 8548 pcie bus number workaround
> 
> 
> On Jun 6, 2007, at 10:19 PM, Zang Roy-r61911 wrote:
> 
> >
> > From: Zang Roy-r61911 <tie-fei.zang at freescale.com>
> >
> > Remove legacy pcie support for 8641 chip.
> > General PCI code can fully support 8641 Rev2.0 chip.
> > For 8548 PEX controller, PCIE host controller configure
> > space can only be accessed as "bus->number = 0" in
> > the PCI architecture. So "bus->number == hose->bus_offset"
> > judgment is added.
> 
> Uugh, I'm completely confused.  Does 8548 rev 2.x have some errata  
> (or 'feature') that 8641 doesn't have?
> 
> - k
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