From: Pierre Ossman <drzeus-mmc@drzeus.cx>
To: "pHilipp Zabel" <philipp.zabel@gmail.com>
Cc: "Uli Luckas" <u.luckas@road.de>,
LKML <linux-kernel@vger.kernel.org>,
"Marek Vasut" <marek.vasut@gmail.com>
Subject: Re: [PATCH] fix misalignment in pxamci
Date: Tue, 29 Jul 2008 13:09:17 +0200 [thread overview]
Message-ID: <20080729130917.116df5bc@mjolnir.drzeus.cx> (raw)
In-Reply-To: <74d0deb30807282330y142cedd2ld0ecf33cc459a75a@mail.gmail.com>
On Tue, 29 Jul 2008 08:30:09 +0200
"pHilipp Zabel" <philipp.zabel@gmail.com> wrote:
>
> Argh, DALGN shouldn't be defined in pxa-regs.h. We really need an
> aligned SCR target then. Pierre, is there any way we can have the MMC
> core align DMA targets for pxa25x?
>
No, not really. So if you can't work around the hardware limitations,
add a bounce buffer or fail the requests that cannot be handled (or
both, if you have a bounce buffer that's smaller than the maximum
request size).
--
-- Pierre Ossman
Linux kernel, MMC maintainer http://www.kernel.org
rdesktop, core developer http://www.rdesktop.org
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prev parent reply other threads:[~2008-07-29 11:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-05 0:19 Marek Vasut
2008-07-05 8:21 ` pHilipp Zabel
2008-07-28 16:23 ` Uli Luckas
2008-07-29 6:30 ` pHilipp Zabel
2008-07-29 7:55 ` Marek Vasut
2008-07-29 11:09 ` Pierre Ossman [this message]
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