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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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