Re: [PATCH v3 10/10] ARM: tegra: pcie: Add device tree support

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On Thu, Aug 16, 2012 at 07:03:50AM +0000, Arnd Bergmann wrote:
> On Thursday 16 August 2012, Thierry Reding wrote:
> > At least for the config space this is incorrect. There's a single region
> > to access the configuration space for all devices below the PCIe
> > controller. So it is shared by both (Tegra20) or all three (Tegra30)
> > root ports.
> > 
> > I'm not sure about PCI domains. Do you have any good pointers as to
> > where I could read up on them? If they need special hardware support,
> > then I think Tegra doesn't support them either. At least I haven't come
> > across any mention of domains while going through the, admittedly some-
> > what sparse on PCIe, Tegra documentation.
> 
> I was referring to the same thing here: if you had a separate config
> space for each root port, they would by definition be separate PCI
> domain. So you don't have them.

I see, that makes sense. Thanks for explaining.

Thierry

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