[PATCH v2 07/10] ARM: tegra: pcie: Add device tree support
Arnd Bergmann
arnd at arndb.de
Wed Jun 13 16:21:08 EDT 2012
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.
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.
Arnd
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