linux-kernel - Re: [PATCH] ARM: /proc/atags: Export also for DT

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Message-ID: <20150127142430.GA15236@amd>
Date:	Tue, 27 Jan 2015 15:24:31 +0100
From:	Pavel Machek <pavel@....cz>
To:	Rob Herring <robherring2@...il.com>
Cc:	Pali Rohár <pali.rohar@...il.com>,
	Russell King <linux@....linux.org.uk>,
	Will Deacon <will.deacon@....com>,
	Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>,
	Sebastian Reichel <sre@...ian.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Tony Lindgren <tony@...mide.com>
Subject: Re: [PATCH] ARM: /proc/atags: Export also for DT

On Tue 2015-01-27 08:16:45, Rob Herring wrote:
> On Tue, Jan 27, 2015 at 7:21 AM, Pavel Machek <pavel@....cz> wrote:
> > On Mon 2015-01-26 14:33:21, Rob Herring wrote:
> >> On Mon, Jan 26, 2015 at 1:16 PM, Pali Rohár <pali.rohar@...il.com> wrote:

> >> This goes in the commit message.
> >>
> >> These would be non-standard fields which are not upstream. I don't
> >> know that we care in that case...
> >
> > Other devices are going to care about boot reason, too, and we might
> > as well be compatible...
> 
> What other devices? Where is bootreason in the list of ATAGS:
> 
> #define ATAG_MEM        0x54410002
> #define ATAG_VIDEOTEXT  0x54410003
> #define ATAG_RAMDISK    0x54410004
> #define ATAG_INITRD     0x54410005
> #define ATAG_INITRD2    0x54420005
> #define ATAG_SERIAL     0x54410006
> #define ATAG_REVISION   0x54410007
> #define ATAG_VIDEOLFB   0x54410008
> #define ATAG_CMDLINE    0x54410009
> #define ATAG_ACORN      0x41000101
> #define ATAG_MEMCLK     0x41000402

Anyone, whose charging involves userspace.

But the fact that it is needed on n900 should be enough.
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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