[U-Boot] [PATCH v3 3/6] mmc: dcache: allocate cache aligned buffer for scr and switch_status
Wolfgang Denk
wd at denx.de
Tue Oct 25 09:25:32 CEST 2011
Dear Anton Staaf,
In message <1318463764-28244-4-git-send-email-robotboy at chromium.org> you wrote:
> Currently the sd_change_freq function allocates two buffers on the
> stack that it passes 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
> scr register and switch status values from an MMC device.
>
> Signed-off-by: Anton Staaf <robotboy at chromium.org>
> Acked-by: Mike Frysinger <vapier at gentoo.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 | 10 +++++-----
> 1 files changed, 5 insertions(+), 5 deletions(-)
Applied, thanks.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
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