linux-kernel - Re: [PATCH] ARM: /proc/cpuinfo: Use DT machine name when possible

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Date:	Wed, 18 Jun 2014 22:20:22 +0200
From:	Pali Rohár <pali.rohar@...il.com>
To:	"Russell King - ARM Linux" <linux@....linux.org.uk>
Cc:	Rob Herring <robherring2@...il.com>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Will Deacon <will.deacon@....com>,
	Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>,
	Sebastian Reichel <sre@...ian.org>,
	Pavel Machek <pavel@....cz>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] ARM: /proc/cpuinfo: Use DT machine name when possible

On Wednesday 18 June 2014 22:00:54 Russell King - ARM Linux 
wrote:
> On Wed, Jun 18, 2014 at 09:22:29PM +0200, Pali Rohár wrote:
> > So without this patch DT migration for Nokia N900 cannot be
> > done without breaking userspace - which is not
> > acceptable...
> > 
> > Also I still did not know why DT kernel does not report
> > Revision number which is passed by bootloader via atags.
> > Any idea?
> 
> It was a concious decision by the DT people to exclude most of
> the ATAGs which provide that information.  Only memory
> information and command line ATAGs are merged into DT.  Every
> other tag is ignored (as there's no place for it in DT.)

So how to read Revision and Serial number in DT based kernel? 

-- 
Pali Rohár
pali.rohar@...il.com

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