From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?utf-8?Q?Beno=C3=AEt_Th=C3=A9baudeau?= <benoit.thebaudeau@advansee.com>
Date: Sun, 15 Jul 2012 00:08:17 +0200 (CEST)
Subject: [U-Boot] i.MX dcache issues
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On Sat, Jul 14, 2012 at 11:28:03PM +0200, Beno?t Th?baudeau wrote:
> Shouldn't the MMC/eSDHC drivers flush/invalidate the dcache ranges
> that they use
> for DMA operations? Not doing so would explain why stack-allocated
> buffers are
> more affected than buffers in unused RAM areas.

That will help:
http://git.denx.de/?p=u-boot/u-boot-mmc.git;a=commitdiff;h=e576bd90f940806b989ffd666552081f17f032c8

I can't wait for the 2012.07 release! ;)

Beno?t