From mboxrd@z Thu Jan  1 00:00:00 1970
From: linux@arm.linux.org.uk (Russell King - ARM Linux)
Date: Mon, 11 Oct 2010 10:02:12 +0100
Subject: [PATCH] ARM: allow, but warn, when issuing ioremap() on RAM
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To: linux-arm-kernel@lists.infradead.org
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On Mon, Oct 11, 2010 at 10:35:08AM +0200, Uwe Kleine-K?nig wrote:
> Alternatively when calling fixup only after parse_tags in setup_arch()
> it worked.  But I guess this change is not for discussion.
> OTOH I wonder why fixup gets passed meminfo.  It's not very useful if
> it's not yet filled.

Because, rather than pass in ATAGs or set the memory on the command line,
they instead wanted to hard-code it in C - something which still happens
today:

arch/arm/mach-msm/board-halibut.c
arch/arm/mach-msm/board-mahimahi.c
arch/arm/mach-msm/board-sapphire.c
arch/arm/mach-msm/board-trout.c
arch/arm/mach-pxa/eseries.c
arch/arm/mach-pxa/spitz.c
arch/arm/mach-s3c2412/mach-smdk2413.c
arch/arm/mach-s3c2412/mach-vstms.c
arch/arm/mach-tegra/board-harmony.c

This is part of the on-going pain of poor quality boot loaders.