Re: [PATCH 2/3] PCI: ARM: add support for virtual PCI host controller

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On Thursday 06 February 2014 14:24:03 Anup Patel wrote:
> > diff --git a/Documentation/devicetree/bindings/pci/linux,pci-virt.txt b/Documentation/devicetree/bindings/pci/linux,pci-virt.txt
> > new file mode 100644
> > index 000000000000..54668a283498
> > +- compatible     : Must be "linux,pci-virt"
> > +
> > +- ranges         : As described in IEEE Std 1275-1994, but must provide
> > +                   at least a definition of the Configuration Space plus
> > +                   one or both of IO and Memory Space.
> > +
> > +- #address-cells : Must be 3
> > +
> > +- #size-cells    : Must be 2
> > +
> > +Configuration Space is assumed to be memory-mapped (as opposed to being
> 
> It would be great to have a flag to specify whether Configuration Space is over
> ioports or memory mapped.
> 

I haven't seen config space access through ioport for a long
time on non-x86. Do you have reason to believe that we will need
that?

	Arnd
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