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Date: Wed, 16 Jan 2008 17:47:44 -0700
From: "Mark A. Greer" <mgreer@mvista.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [PATCH 1/4] powerpc: mv64x60 - Use early_* PCI accessors for
	hotswap reg
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On Thu, Jan 17, 2008 at 09:48:59AM +1100, Benjamin Herrenschmidt wrote:
> 
> On Mon, 2008-01-14 at 15:51 -0700, Mark A. Greer wrote:
> > From: Mark A. Greer <mgreer@mvista.com>
> > 
> > The mv64x60 Hotswap register is on the first hose of the mv64x60
> > hostbridge.  To access it, manually find the hose structure and
> > use the early_* PCI accessor routines because the hostbridge is
> > normally hidden.
> 
> Can't we unhide the NB instead ?

Hi Ben.

Possibly but it may cause issues since many hostbridge have BARs
that don't comply with the PCI spec which may get hosed when scanning
the PCI bus.  Maybe fixups/quirks/whatever will help but I'm not sure
that's any cleaner.  TBH, I'm not familiar enough with the PCI subsystem
to answer this intelligently.

Mark