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SubjectRe: [PATCH v1 1/5] ARM: imx28: add basic dt support
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.

--
Regards,
Shawn


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