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SubjectRe: [PATCH v1 1/5] ARM: imx28: add basic dt support
On Wed, Mar 14, 2012 at 01:41:20PM +0800, Shawn Guo wrote:
> On Tue, Mar 13, 2012 at 11:23:51AM -0600, Grant Likely wrote:
> ...
> > > + apb@80000000 {
> > > + compatible = "simple-bus";
> > > + #address-cells = <1>;
> > > + #size-cells = <1>;
> > > + reg = <0x80000000 0x80000>;
> > > + ranges;
> > > +
> > > + apbh@80000000 {
> > > + compatible = "simple-bus";
> > > + #address-cells = <1>;
> > > + #size-cells = <1>;
> > > + reg = <0x80000000 0x3c900>;
> > > + ranges;
> > > +
> > > + icoll: interrupt-controller@80000000 {
> > > + compatible = "fsl,imx28-icoll";
> > > + interrupt-controller;
> > > + #interrupt-cells = <1>;
> > > + reg = <0x80000000 0x2000>;
> > > + };
> > > + };
> > > +
> > > + apbx@80040000 {
> > > + compatible = "simple-bus";
> > > + #address-cells = <1>;
> > > + #size-cells = <1>;
> > > + reg = <0x80040000 0x40000>;
> > > + ranges;
> > > +
> > > + uart1: uart@80074000 {
> > > + compatible = "arm,pl011", "arm,primecell";
> > > + reg = <0x80074000 0x2000>;
> > > + interrupts = <47>;
> > > + };
> > > + };
> >
> > What is the purpose of the apbh and apbx busses? Will more device nodes
> > get added to them later, or does each only contain a single device?
> >
> Since our ultimate goal is to convert mach-mxs over to device tree,
> I would also suggest we have all the hardware blocks defined in dts
> from the beginning.
>
Also agree.
Will add them all in later patches.

Regards
Dong Aisheng



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