linux-kernel - [PATCH] fix misalignment in pxamci

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Date:	Sat, 5 Jul 2008 02:19:52 +0200
From:	Marek Vasut <marek.vasut@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	drzeus-mmc@...eus.cx
Subject: [PATCH] fix misalignment in pxamci

Hi,
Philipp Zabel finally made the pxamci issue clear. It turned out, that pxamci 
needs the DMA destination address to be aligned to 8 bytes. In some cases it 
happened, that the address was aligned to 4 bytes causing controller to 
incorrectly transfer data (and resulting into error like "mmc0: unrecognised 
SCR structure version 1"). The following patch allows to debug this issue and 
moreover fixes it by moving one 4 byte entry of mmc_card structure, aligning 
the DMA destination back to 8 bytes.

Signed-off-by: Marek Vasut <marek.vasut@...il.com>

View attachment "pxamci-lkml.patch" of type "text/x-diff" (1767 bytes)