[U-Boot] [PATCH 3/3] ARM: use r9 for gd

[Wolfgang Denk <wd@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

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