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Subject: Re: [0/14] Ebony support, 2nd spi
From: Josh Boyer <jwboyer@linux.vnet.ibm.com>
To: Arnd Bergmann <arnd@arndb.de>
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Date: Tue, 20 Feb 2007 09:17:46 -0600
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On Tue, 2007-02-20 at 16:07 +0100, Arnd Bergmann wrote:
> On Tuesday 20 February 2007 16:03, Josh Boyer wrote:
> > And the ebony dts also has the a bus type of "ibm,opb" as well.
> 
> We should really get a common name for these. I don't remember
> what the discussions were, but it seems we came up with different
> results for Axon and ppc4xx, which is very bad.

Yes, using common types would be a very good idea. There's no published
DTS for Axon so we have no idea what has been previously defined.

> Using type "ibm,opb" rather than just "opb" makes sense to me,
> but I don't know if we already have shipping systems that use
> "opb" here.

I would prefer "ibm,xxx" as well if it's possible.

> There is probably a similar problem with the nodes for "plb4",
> "plb5" and "ebc", as well as the "compatible" property of the
> serial port, which, as you noted earlier is "ns16550" on 
> ebony and "ns16750" on axon, although it is exactly the same
> macro.

Right, ebony is currently using "ibm,plb".  We haven't defined an EBC
node yet for 4xx.

josh