From: David Woodhouse <dwmw2@infradead.org>
To: joakim.tjernlund@lumentis.se
Cc: "Robert Kaiser" <rob@sysgo.de>,
linux-mtd@lists.infradead.org,
"J?rn Engel" <joern@wohnheim.fh-wedel.de>
Subject: Re: MTD concat layer
Date: Wed, 13 Feb 2002 11:04:37 +0000 [thread overview]
Message-ID: <31104.1013598277@redhat.com> (raw)
In-Reply-To: <IGEFJKJNHJDCBKALBJLLOEGGFBAA.joakim.tjernlund@lumentis.se>
joakim.tjernlund@lumentis.se said:
> I thougth this was already supported? Just create a mtd partition
> that will span two or more banks and mount a JFFS2 FS on top of that
> partition.
Doesn't work if the banks aren't made to appear contiguous by the map
driver. The probe code can't handle it.
The case in question has something like:
--------------
| CFI chip |
--------------
| BIOS chip |
--------------
| CFI chip |
--------------
You could hack up a map driver that appears to have the two CFI chips
contiguously, and then the probe code would find them both and make a
single MTD device from them - but there was a reason why he wasn't doing
this. Perhaps the 'BIOS' bit is in fact the beginning of the second chip,
not actually a separate chip at all? I don't remember.
--
dwmw2
next prev parent reply other threads:[~2002-02-13 10:53 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-12 18:40 MTD concat layer Robert Kaiser
2002-02-13 7:56 ` Suspend Erase bug in cfi_cmdset0001.c Joakim Tjernlund
2002-02-14 8:17 ` Joakim Tjernlund
2002-02-13 11:00 ` MTD concat layer Joakim Tjernlund
2002-02-13 11:04 ` David Woodhouse [this message]
2002-02-13 11:34 ` Robert Kaiser
2002-02-13 11:37 ` Robert Schwebel
2002-02-13 13:33 ` Daniel Engström
2002-02-13 14:01 ` Eric W. Biederman
2002-02-15 15:58 ` David Woodhouse
2002-02-15 17:43 ` Robert Kaiser
2002-02-15 18:02 ` David Woodhouse
2002-02-15 18:40 ` Jörn Engel
2002-02-16 10:33 ` Robert Kaiser
2002-02-16 10:43 ` Robert Kaiser
2002-02-16 10:43 ` David Woodhouse
2002-02-16 11:03 ` Robert Kaiser
2002-02-16 11:08 ` David Woodhouse
2002-02-16 14:56 ` Brian J. Fox
2002-02-17 10:36 ` Robert Kaiser
2002-02-17 19:05 ` Brian J. Fox
2002-02-18 8:48 ` Robert Kaiser
2002-02-18 9:05 ` David Woodhouse
2002-02-18 15:53 ` Brian J. Fox
2002-02-18 17:01 ` Robert Kaiser
2002-02-18 17:02 ` David Woodhouse
2002-02-18 15:46 ` Brian J. Fox
2002-02-20 14:28 ` Jonas Holmberg
2002-02-20 15:35 ` Robert Kaiser
2002-02-21 14:51 ` Jonas Holmberg
2002-02-26 11:32 ` Robert Kaiser
2002-03-06 13:37 ` Jonas Holmberg
2002-03-06 16:02 ` Robert Kaiser
-- strict thread matches above, loose matches on Subject: below --
2002-02-14 11:14 Jonas Holmberg
2002-03-08 16:08 Robert Kaiser
2002-03-08 16:22 ` David Woodhouse
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