From: Wolfgang Denk <wd@denx.de>
Date: Mon, 12 Aug 2013 07:53:15 +0200
Subject: [U-Boot] [PATCH 3/3] ARM: use r9 for gd
In-Reply-To: <1376254719-15594-4-git-send-email-jeroen@myspectrum.nl>
References: <1376254719-15594-1-git-send-email-jeroen@myspectrum.nl>
	<1376254719-15594-4-git-send-email-jeroen@myspectrum.nl>
Message-ID: <20130812055315.DA080380DFA@gemini.denx.de>
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To: u-boot@lists.denx.de

Dear Jeroen Hofstee,

In message <1376254719-15594-4-git-send-email-jeroen@myspectrum.nl> you wrote:
> To be more EABI compliant and as a preparation for building
> with clang, use the platform-specific r9 register for gd
> instead of r8.
> 
> note: The FIQ is not updated since it is not used in u-boot,
> and under discussion for the time being.
> 
> The following checkpatch warning is ignoredL
> WARNING: Use of volatile is usually wrong: see
> Documentation/volatile-considered-harmful.txt
> 
> Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
> ---
>  arch/arm/config.mk                 |  2 +-
>  arch/arm/include/asm/global_data.h |  2 +-
>  arch/arm/lib/crt0.S                | 16 ++++++++--------
>  3 files changed, 10 insertions(+), 10 deletions(-)

IIRC, r9 is used as GOT pointer ?

In any case, please also update the README section of register usage
on ARM.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
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