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From: Anatolij Gustschin <agust@denx.de>
To: stephan@gatzka.org
Cc: "Albrecht Dreß" <albrecht.dress@arcor.de>,
	linuxppc-dev@lists.ozlabs.org, linux-mtd@lists.infradead.org
Subject: Re: MPC5200b jffs2 memcpy alignment problem
Date: Mon, 2 Jul 2012 12:21:34 +0200	[thread overview]
Message-ID: <20120702122134.50340f5f@wker> (raw)
In-Reply-To: <4FEFF265.3010102@gatzka.org>

Hi Stephan,

On Sun, 01 Jul 2012 08:47:01 +0200
Stephan Gatzka <stephan@gatzka.org> wrote:

> Hi Albrecht,
> 
>  > I don't recall who proposed this patch, but exactly this solution is
>  > around for a longer time (mayby you search archives...).  On my board, I
>  > have a flash chip attached to the LocalBus in 16-bit mode.  Based on
>  > 3.2.16, the patch is:
> 
> Thanks for your answer and yes, this patch will definitely work. But I 
> want to have a solution in the mainline kernel, that's why I'm asking 
> how to deal best with this problem.

This problem has been discussed several times [1], [2], but wasn't
resolved yet. The clean solution suggested was to implement a custom
mapping driver [3].

Thanks,
Anatolij

[1] http://thread.gmane.org/gmane.linux.drivers.mtd/21521
[2] http://thread.gmane.org/gmane.linux.ports.ppc.embedded/36324
[3] http://thread.gmane.org/gmane.linux.ports.ppc.embedded/36324/focus=36608

  parent reply	other threads:[~2012-07-02 10:22 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-30 19:16 MPC5200b jffs2 memcpy alignment problem Stephan Gatzka
2012-06-30 20:09 ` Albrecht Dreß
2012-07-01  6:47   ` Stephan Gatzka
2012-07-01 13:50     ` William F.
2012-07-02 10:21     ` Anatolij Gustschin [this message]
2012-07-02 16:41       ` Stephan Gatzka

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