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From: "Stephan Linke" <Stephan.Linke@epygi.de>
To: "Linux-Mtd" <linux-mtd@lists.infradead.org>
Subject: using multile partitions on one NAND chip
Date: Wed, 24 Nov 2004 15:40:37 +0100	[thread overview]
Message-ID: <NGENJJFPMHGLPILEKKAMMEAECFAA.Stephan.Linke@epygi.de> (raw)

Hi,

anyone tried using multiple partitions on a NAND flash?
I can't find the protection mechanism that protects lets say an erase on one block against a read command on the other block.
In my case I am using 2 YAFFS patitions and 1 partition that fakes a read-only NOR flash using the nand_read_ecc() function
(mtd->read_ecc()). I'm not shure if there is an efficient protection for this. It looks like nand_chip->chip_lock should do this job
but it only protects parts of the erase loop agains parts of the nand_chip->waitfunc() wait loop. It does not keep
nand_chip->cmdfunc() from sending a command while an erase command is still active in the nand chip.

Thanks, Stephan

             reply	other threads:[~2004-11-24 14:40 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-11-24 14:40 Stephan Linke [this message]
2004-11-24 16:29 ` using multile partitions on one NAND chip Thomas Gleixner
     [not found] <NGENJJFPMHGLPILEKKAMMEAFCFAA.Stephan.Linke@epygi.de>
2004-11-24 18:28 ` Stephan Linke
2004-11-24 20:05   ` Thomas Gleixner

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