[PATCH v2 07/10] ARM: tegra: pcie: Add device tree support

[Thierry Reding]

On Wed, Jun 13, 2012 at 08:21:08PM +0000, Arnd Bergmann wrote:
> On Wednesday 13 June 2012, Thierry Reding wrote:
> >                 pci at 80000000 {
> >                         reg = <0x80000000 0x00001000>;
> >                         status = "disabled";
> > 
> >                         #address-cells = <3>;
> >                         #size-cells = <2>;
> > 
> >                         ranges = <0x80400000 0x80400000 0x00008000   /* I/O */
> >                                   0x90000000 0x90000000 0x08000000   /* non-prefetchable memory */
> >                                   0xa0000000 0xa0000000 0x08000000>; /* prefetchable memory */
> > 
> >                         nvidia,ctrl-offset = <0x0>;
> >                         nvidia,num-lanes = <2>;
> >                 };
> > 
> 
> I believe you will need an "interrupt-map" property here, to map the host
> interrupts to the INTA-INTD lines of the attached devices.

Legacy interrupts are something I cannot test at all because I have no
hardware that supports them.

> I'm not sure whether we want to have a device_type="pciex" property here.
> powerpc and sparc seem to use that information, to distinguish a pcie
> bus from pci or cardbus.

That'd be rather useless information given that the Tegra is unlikely to
support either PCI or CardBus at some point.

Thierry
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