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Date: Sun, 29 Nov 2015 23:13:03 +0000
From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Pali =?iso-8859-1?Q?Roh=E1r?= <pali.rohar@gmail.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>, Arnd Bergmann <arnd@arndb.de>,
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        Andreas =?iso-8859-1?Q?F=E4rber?= <afaerber@suse.de>
Subject: Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT
 "/chosen/linux,atags" entry
Message-ID: <20151129231303.GF30871@n2100.arm.linux.org.uk>
References: <20150713131902.GH26485@atomide.com>
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 <20151129180939.GE30871@n2100.arm.linux.org.uk>
 <201511291919.18179@pali>
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On Sun, Nov 29, 2015 at 07:19:18PM +0100, Pali Rohár wrote:
> On Sunday 29 November 2015 19:09:39 Russell King - ARM Linux wrote:
> > On Sat, Nov 28, 2015 at 12:34:23PM -0500, Nicolas Pitre wrote:
> > > Good. And Arnd likes the idea too. So we might be converging at
> > > last which is a good thing.
> > 
> > I disagree with the idea that there is convergence.  There might be
> > convergence towards an idea, but... Here's a mail extract, from July
> > 7th, from earlier in this very thread:
> > 
> > Pali:
> > > Me:
> > > > Are the ATAGs at a fixed address on the N900?
> > > 
> > > Yes, in board-rx51.c is:
> > > 
> > > .atag_offset    = 0x100
> > > 
> > > and Nokia Bootloader (proprietary) store them to that address.
> > > 
> > > > Can that be handled in
> > > > some kind of legacy file for the N900 which calls save_atags() on
> > > > it, so we don't end up introducing yet more stuff that we have
> > > > to maintain into the distant future?  If not, what about copying
> > > > a known working atag structure into a legacy file for the N900?
> > > 
> > > I already asked question if it is possible to read ATAGs from DT
> > > booted kernel. And somebody (do not remember who) wrote to ML,
> > > that it is not possible and it can be done in that uncompress
> > > code.
> > 
> > So you're converging on an idea that has already been rejected. 
> > That's not a good thing, IMHO.
> 
> Or in other case show that such implementation is possible...

Only those with the problem can do that.

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