netdev - Re: [PATCH v3 0/7] mv643xx.c: Add basic device tree support.

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Message-ID: <20121021015234.GE25828@titan.lakedaemon.net>
Date:	Sat, 20 Oct 2012 21:52:34 -0400
From:	Jason Cooper <jason@...edaemon.net>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Arnd Bergmann <arnd@...db.de>, thomas.petazzoni@...e-electrons.com,
	andrew@...n.ch, netdev@...r.kernel.org,
	devicetree-discuss@...ts.ozlabs.org, linuxppc-dev@...ts.ozlabs.org,
	ben.dooks@...ethink.co.uk, dale@...nsworth.org,
	Ian Molton <ian.molton@...ethink.co.uk>,
	David Miller <davem@...emloft.net>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 0/7] mv643xx.c: Add basic device tree support.

Pong.  ;-)

On Tue, Sep 11, 2012 at 04:03:31PM +1000, Benjamin Herrenschmidt wrote:
> On Mon, 2012-09-10 at 14:22 +0000, Arnd Bergmann wrote:
> > Following up on the old discussion, I talked briefly about this
> > issue with BenH at the kernel summit. The outcome basically is that
> > it's a bit sad to have incompatible bindings, but it's not the end
> > of the world,and it's more important to do it right this time.
> > 
> > Just make sure that you use different values for the 'compatible'
> > strings and then do what you need to get the ARM hardware working.
> > 
> > Ideally, the new binding should be written in a way that powerpc
> > machines can use the same one, but the existing ones all use
> > an version of Open Firmware that is not going to get updated
> > and it's also not too likely that we are going to see new
> > powerpc machines based on this chip.
> 
> Right, mostly these machines where the Pegasos. Those came with a fairly
> busted variant of Open Firmware which generated a pretty gross
> device-tree.
> 
> For some reason, the manufacturer of those things was never willing to
> fix anything in their firmware (despite the distributor providing
> patches etc...), seemingly on the assumption that whatever they were
> doing was perfect and operating system people like us didn't matter one
> little bit :-)
> 
> So I don't care much about it. It would be nice to keep them working
> since people in the community still have them but if it goes through
> some "compat" code that detects old/broken device-trees and eventually
> disappears when we finally drop support, then so be it.

Ian,

What is the status of this work?

thx,

Jason.
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