Dear Arnd Bergmann,
On Thu, 21 Mar 2013 19:03:52 +0000, Arnd Bergmann wrote:
> On Thursday 21 March 2013, Rob Herring wrote:
> > > soc {
> > > - #address-cells = <1>;
> > > - #size-cells = <1>;
> > > + #address-cells = <2>;
> > > + #size-cells = <2>;
> >
> > If all the addresses for the soc bus are below 4GB or even within a 4GB
> > range if using the ranges property, then changing all this and
> > everything below it is kind of pointless.
>
> Good point. We'll probably also have to change it all again when we add a new
> binding for that bus in 3.10, so it makes sense to change it only once.
In the mean time can we do something like:
soc {
compatible = "simple-bus";
range = <...>;
[... all the peripherals ...]
};
with the range = <...> property converting the peripheral registers
base address (expressed as offsets in the reg = <...> properties of the
subnodes) into the absolute physical address?
I'm planning to work on the DT binding for the mvebu-mbus driver as
soon as the PCIe driver gets accepted, but it would be good to have an
intermediate solution to get the LPAE support in.
Best regards,
Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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