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

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Message-Id: <201501262144.09223@pali>
Date:	Mon, 26 Jan 2015 21:44:09 +0100
From:	Pali Rohár <pali.rohar@...il.com>
To:	"Russell King - ARM Linux" <linux@....linux.org.uk>
Cc:	Rob Herring <robherring2@...il.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>,
	Tony Lindgren <tony@...mide.com>
Subject: Re: [PATCH] ARM: /proc/atags: Export also for DT

On Monday 26 January 2015 21:37:51 Russell King - ARM Linux 
wrote:
> On Mon, Jan 26, 2015 at 08:16:52PM +0100, Pali Rohár wrote:
> > This patch will cause that decompressor store full ATAG
> > structure into
> 
> > DT tree ("/atags"):
> How about something a little more radical.
> 
> Rather than trying to squeeze various ATAGs into DT, why don't
> we add a standard ATAG to contain the DT and pass that
> through into the kernel. This is IMHO how we _should_ have
> done the ATAG compatibility from the start.
> 
> That means we could get rid of most of the libfdt in the
> decompressor, and instead resolve the differences in the
> kernel.

This sounds good. Now when I patched decompressor myself with 
Revision property support, I wanted to ask same question: Why to 
convert some part from ATAGs to DT instead to pass both ATAGs and 
DT to kernel?

-- 
Pali Rohár
pali.rohar@...il.com

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