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SubjectRe: [RFC PATCH 3/3] dt-bindings: pci: xgene pcie device tree bindings
Date
On Tuesday 07 January 2014 16:35:01 Arnd Bergmann wrote:
> > >> +SoC specific DT Entry:
> > >> + pcie0: pcie@1f2b0000 {
> > >> + status = "disabled";
> > >> + device_type = "pci";
> > >> + compatible = "xgene,pcie";
> > >> + #interrupt-cells = <1>;
> > >> + #size-cells = <2>;
> > >> + #address-cells = >;
> > >> + reg = < 0x00 0x1f2b0000 0x0 0x00010000>;
> > >> + ranges = <0x02000000 0x0 0x00000000 0xe0 0x00000000 0x0 0x10000000 /* mem*/
> > >
> > >
> > > Also, do you support no prefetchable memory?
> >
> > HW has either IO or Memory regions for mapping device's memory space.
> > There is no separate prefetchable memory space.
>
> Are you sure the memory is non-prefetchable then? I would have expected
> 0x42000000 rather than 0x02000000, but I could be misremembering it.

Nevermind. I just checked and you are right: if you only have
one memory range, it has to be non-prefetchable.

Arnd


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