[PATCH] [POWERPC] Xilinx: add compatibility for IBMcoreconnect busses.

Stephen Neuendorffer stephen.neuendorffer at xilinx.com
Fri May 9 02:15:27 EST 2008


Hmm... sounds reasonable to me.

> -----Original Message-----
> From: linuxppc-dev-bounces+stephen.neuendorffer=xilinx.com at ozlabs.org
[mailto:linuxppc-dev-
> bounces+stephen.neuendorffer=xilinx.com at ozlabs.org] On Behalf Of David
Gibson
> Sent: Wednesday, May 07, 2008 8:30 PM
> To: Josh Boyer
> Cc: linuxppc-dev at ozlabs.org
> Subject: Re: [PATCH] [POWERPC] Xilinx: add compatibility for
IBMcoreconnect busses.
> 
> On Wed, May 07, 2008 at 09:46:30PM -0500, Josh Boyer wrote:
> > On Thu, 8 May 2008 10:18:50 +1000
> > David Gibson <david at gibson.dropbear.id.au> wrote:
> >
> > > On Wed, May 07, 2008 at 01:47:31PM -0700, Stephen Neuendorffer
wrote:
> > > > The IBM coreconnect names are pretty well defined, it appears.
In
> > > > addition, the Xilinx versions of these IPs seem to be
proliferating.
> > > > Hence, in the future let's prefer to use the standard names.
I've
> > > > left the old names in for some backward compatibility for
existing
> > > > device trees.
> > > >
> > > > Signed-off-by: Stephen Neuendorffer
<stephen.neuendorffer at xilinx.com>
> > >
> > > If you're talking about future trees, can't you just slap
"simple-bus"
> > > on them avoid this monster id table?
> >
> > What is that and how does it work?
> 
> ePAPR states that busses which cannot be probed as such (i.e. the
> device tree is the only way to figure out what's on the bus) should
> have "simple-bus" in their compatible property.  You can then just add
> simple-bus to the of_bus_ids list and avoid adding umpteen other
things.
> 
> --
> David Gibson			| I'll have my music baroque, and my
code
> david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT
_the_ _other_
> 				| _way_ _around_!
> http://www.ozlabs.org/~dgibson
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