From: David Woodhouse <dwmw2@infradead.org>
To: "Nikita V. Youshchenko" <yoush@cs.msu.su>
Cc: linux-mtd@lists.infradead.org
Subject: Re: [PATCH] mtd: support for bit-reversed CFI cmd/query
Date: Tue, 22 Apr 2008 19:56:31 +0100 [thread overview]
Message-ID: <1208890591.9212.654.camel@pmac.infradead.org> (raw)
In-Reply-To: <200802272348.13180@blacky.localdomain>
On Wed, 2008-02-27 at 23:48 +0300, Nikita V. Youshchenko wrote:
> mtd: support for bit-reversed CFI cmd/query
>
> Some embedded boards have flash chips connected with reversed bit order.
> Example for 16-bit width:
> chip D0 is bus D15
> chip D1 is bus D14
> ...
> chip D15 is bus D0
> It works perfectly for data access, however probing and issuing CFI commands
> for such chips require bit reversing. This patch adds support for this.
>
> Signed-off-by: Nikita Youshchenko <yoush@cs.msu.su>
Am I missing something, or did you only reverse the bits on 16-bit and
64-bit access, and not 8-bit or 32-bit?
--
dwmw2
next prev parent reply other threads:[~2008-04-22 18:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-27 20:48 [PATCH] mtd: support for bit-reversed CFI cmd/query Nikita V. Youshchenko
2008-04-22 18:56 ` David Woodhouse [this message]
2008-04-22 19:08 ` Nikita V. Youshchenko
2008-04-22 19:23 ` David Woodhouse
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