Subject: Re: [PATCH] net: NEWEMAC: Remove "rgmii-interface" from rgmii matching table

From: Benjamin Herrenschmidt <[email-masked]>
Date: Thu, 07 Feb 2008 13:47:28 +1100

On Wed, 2008-02-06 at 10:35 -0600, Olof Johansson wrote:
> On Wed, Feb 06, 2008 at 10:23:40AM -0600, Josh Boyer wrote:
> > On Wed, 6 Feb 2008 10:01:57 -0600
> > Olof Johansson <[email-masked]> wrote:
> > 
> > > On Wed, Feb 06, 2008 at 01:21:59PM +0100, Stefan Roese wrote:
> > > > With the removal the the "rgmii-interface" device_type property from the
> > > > dts files, the newemac driver needs an update to only rely on compatible
> > > > property.
> > > 
> > > What about systems using an older dts, such as one kexec:ing from an
> > > older kernel?
> > 
> > Like what?  Kexec doesn't work on 4xx yet.
> 
> Sure, but similar restrictions would apply for customers who have a
> flashed device tree that want to boot a newer kernel. Deprecating old
> device tree support is something that should be done very carefully.

In that case, we -know- there was no such thing as the proper support
for 4xx in powerpc isn't really there before 2.6.25 anyway. The only
other is Cell/Axon which we verified still works.

Ben.