From: David Woodhouse <dwmw2@infradead.org>
To: Kenneth Johansson <kenneth.johansson@etx.ericsson.se>
Cc: tglx@linutronix.de
Cc: Mtd <linux-mtd@lists.infradead.org>
Cc: John Burch <jburch@vincisystems.com>
Subject: Re: Can mtd partition span multiple devices
Date: Thu, 03 Apr 2003 12:25:37 +0100 [thread overview]
Message-ID: <1049369136.14220.5.camel@passion.cambridge.redhat.com> (raw)
In-Reply-To: <1049368506.32205.28.camel@spawn>
On Thu, 2003-04-03 at 12:15, Kenneth Johansson wrote:
> On Thu, 2003-04-03 at 02:58, Thomas Gleixner wrote:
> > On Thursday 03 April 2003 00:56, John Burch wrote:
> > > I'm wondering if a single mtd partition can span more than one physical
> > > flash device. For example, if two flash devices span the following
> > > address ranges, 0x0-0x3FFFFF and 0x400000-0x7FFFFF, can an mtd partition
> > > be defined as follows?
> > >
> > > Name: spanning_partition
> > > Size: 0x200000
> > > Offset: 0x300000
> > >
> > > So this partition would span physical addresses 0x300000 - 0x3FFFFF
> > > (device 1) and 0x400000 - 0x4FFFFF (device 2).
> >
> > Enable MTD concatenating support.
> >
>
> You mean MTD partitioning no need for concatenating with this layout.
Probably true -- if the two physical devices are laid out such that a
single chip probe will find them together, they can be used as a single
MTD device even without mtdconcat just by setting your map to cover the
whole range 0->8M. You only really need mtdconcat for more complicated
setups.
--
dwmw2
next prev parent reply other threads:[~2003-04-03 11:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-02 22:56 Can mtd partition span multiple devices John Burch
2003-04-03 0:58 ` Thomas Gleixner
2003-04-03 11:15 ` Kenneth Johansson
2003-04-03 11:25 ` David Woodhouse [this message]
2003-04-03 15:36 ` John Burch
2003-04-03 15:49 ` Jörn Engel
2003-04-03 4:26 ` Charles Manning
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