From: "Stéphane Laroche" <stephane.laroche@colubris.com>
To: David Woodhouse <dwmw2@infradead.org>
Cc: mtd@infradead.org
Subject: Re: CFI problems with 32bit bus and 4 devices
Date: Wed, 10 Jan 2001 17:39:35 -0500 [thread overview]
Message-ID: <3A5CE4A7.AB29F73E@colubris.com> (raw)
In-Reply-To: Pine.LNX.4.30.0101102149450.1062-100000@imladris.demon.co.uk
David Woodhouse wrote:
> So - are x16 devices in x8 mode _really_ compatible with x8 devices if you
> shift the address lines over by one? Common sense would imply that's the
> case. Bitter experience would imply that the manufacturers have
> probably screwed it up in interesting ways.
The only difference between the 2 modes are the CFI addresses (you have to
multiply them by 2 in x8 mode). So you cannot cover that in the map driver,
which doesn't know the difference between a CFI and a normal operation.
-Stephane
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next prev parent reply other threads:[~2001-01-10 22:38 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-10 19:15 CFI problems with 32bit bus and 4 devices Stéphane Laroche
2001-01-10 20:13 ` Nicolas Pitre
2001-01-10 20:37 ` David Woodhouse
2001-01-10 21:06 ` Stéphane Laroche
2001-01-10 22:35 ` David Woodhouse
2001-01-10 21:37 ` Nicolas Pitre
2001-01-10 22:22 ` David Woodhouse
2001-01-10 22:39 ` Stéphane Laroche [this message]
2001-01-10 23:06 ` David Woodhouse
2001-01-11 0:21 ` Nicolas Pitre
2001-01-10 23:34 ` Alice Hennessy
2001-01-10 23:55 ` Alice Hennessy
-- strict thread matches above, loose matches on Subject: below --
2001-01-10 22:45 Michael Thompson
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