[U-Boot] [PATCH v2 6/7] mmc: dcache: allocate cache aligned buffers for ext_csd

Wolfgang Denk wd at denx.de
Thu Oct 6 20:45:27 CEST 2011


Dear Anton Staaf,

In message <1317763491-7274-7-git-send-email-robotboy at chromium.org> you wrote:
> Currently the mmc_change_freq and mmc_startup functions allocates
> buffers on the stack that are passed down to the MMC device driver.
> These buffers could be unaligned to the L1 dcache line size.  This
> causes problems when using DMA and with caches enabled.
> 
> This patch correctly cache alignes the buffers used for reading the
> ext_csd data from an MMC device.
> 
> Signed-off-by: Anton Staaf <robotboy at chromium.org>
> Cc: Lukasz Majewski <l.majewski at samsung.com>
> Cc: Mike Frysinger <vapier at gentoo.org>
> Cc: Albert ARIBAUD <albert.u.boot at aribaud.net>
> ---
>  drivers/mmc/mmc.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)

Applied, thanks.

Best regards,

Wolfgang Denk

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