[RFC] AmigaOne device tree source v2
gerhard_pircher at gmx.net
Fri Sep 7 07:09:43 EST 2007
-------- Original-Nachricht --------
> Datum: Thu, 6 Sep 2007 15:36:30 +0200
> Von: Segher Boessenkool <segher at kernel.crashing.org>
> An: "Gerhard Pircher" <gerhard_pircher at gmx.net>
> CC: linuxppc-dev at ozlabs.org, david at gibson.dropbear.id.au
> Betreff: Re: [RFC] AmigaOne device tree source v2
> >> PCI legacy I/O is not direct mapped: there is no legacy I/O on a
> >> PowerPC system bus. So, it can not be mentioned in the "ranges"
> >> property, but the PHB registers used to access it should be shown
> >> in the "reg" property. It could be a simple linear window (it
> >> sounds like it is here?), but it could for example also be implemented
> >> via an address/data register pair.
> > Yes, it is a simple linear address window. I'll remove its address
> > range from the reg property.
> No, please remove it from the "ranges" property, instead.
What about the PCI2ISA bridge? I map the first 64k PCI I/O address space
as ISA I/O space by using a ranges property. Would that be incorrect,
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