[U-Boot] [PATCH v2] SPI: Fix 32 bit transfers in mxc_spi.c

[Wolfgang Denk <wd@denx.de>]

Dear Feng,

can you please take care of this?

In message <1263726375-4929-1-git-send-email-lilja.magnus@gmail.com> Magnus Lilja wrote:
> Commit f9b6a1575d9f1ca192e4cb60e547aa66f08baa3f,  "i.MX31: fix SPI
> driver for shorter than 32 bit" broke 32 bit transfers. This patch
> makes single 32 bit transfer work again.
> 
> Transfer lengths that are known not to work will abort and print
> an error message.
> 
> Tested on i.MX31 Litekit and i.MX31 PDK using 32 bit transfers to
> the MC13783/ATLAS chip (using the 'date' command).
> 
> Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>
> ---
> 
> As discussed on the mailing list, Guennadi Liakhovetski thinks that
> all transfers > 16 bits are broken. This patch fixes the 32 bit case
> and makes sure the user is notified if a broken bitlength is used.
> 
>  drivers/spi/mxc_spi.c |    9 +++++++++
>  1 files changed, 9 insertions(+), 0 deletions(-)

Acked-by: Wolfgang Denk <wd@denx.de>

Best regards,

Wolfgang Denk

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DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
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A secure program has to be robust: it  must  be  able  to  deal  with
conditions  that "can't happen", whether user input, program error or
library/etc. This is basic damage  control.  Buffer  overflow  errors
have nothing to do with security, but everything with stupidity.
                 -- Wietse Venema in <5cnqm3$8r9@spike.porcupine.org>