Messages in this thread | | | Date | Wed, 14 Mar 2012 13:41:20 +0800 | From | Shawn Guo <> | Subject | Re: [PATCH v1 1/5] ARM: imx28: add basic dt support |
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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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