Re: [RFC] Device tree for new desktop platform in arch/powerpc

["Gerhard Pircher" <gerhard_pircher@gmx.net>]

-------- Original-Nachricht --------
Datum: Thu, 21 Jun 2007 22:36:46 +1000
Von: Benjamin Herrenschmidt <benh@kernel.crashing.org>
An: Gerhard Pircher <gerhard_pircher@gmx.net>
CC: linuxppc-dev@ozlabs.org, list <linuxppc-dev@ozlabs.org>
Betreff: Re: [RFC] Device tree for new desktop platform in arch/powerpc

> You should have /pci/isa <--- this is the PCI2ISA bridge
> 
> and the ISA devices below that. Best is I send you an example of a CHRP
> or pSeries devie-tree with ISA stuff on it tomorrow. Ping me if I
> forget.
That would help a lot. Thank you!

> Haven't looked at your .dts yet but it should be "interrupt-controller",
> compatible "chrp,iic" or "i8259", with a #interrupt-cells of 2 and
> interrupts following the standard ISA encoding. You probably also want
> an interrupt-parent property in the isa bridge node pointing back to the
> 8259 so it becomes the default for all ISA devices.
What about PCI devices? Wouldn't it better to define the interrupt-parent property in the PCI bus node?

Gerhard
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