[PATCH v2 07/10] ARM: tegra: pcie: Add device tree support
Arnd Bergmann
arnd at arndb.de
Thu Jun 14 06:25:09 EDT 2012
On Thursday 14 June 2012, Thierry Reding wrote:
> >
> > 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.
Hmm, I thought all PCIe hardware has to support them when you do not
enable MSI. What hardware do you have then?
> > 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.
But the generic code does not know that.
Arnd
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