From: Thomas Gleixner <tglx@linutronix.de>
To: shadow <saturn@structure.biochem.nchu.edu.tw>
Cc: linux-mtd@lists.infradead.org
Subject: Re: IF eraseall will destryed(phys) the nand flash ?
Date: Wed, 04 Dec 2002 11:35:55 +0100 [thread overview]
Message-ID: <200212041135.55747.tglx@linutronix.de> (raw)
In-Reply-To: <Pine.LNX.4.44.0212040642240.5200-100000@structure.biochem.nchu.edu.tw>
On Tuesday 03 December 2002 23:46, shadow wrote:
> On Wed, 4 Dec 2002, Thomas Gleixner wrote:
> > > Another problem is why the new SMC has some bad blocks and occurred
> > > at the same page with using eraseall program erase it.
> >
> > NAND FLASH can have factory marked bad blocks at shipping time. See
> > datasheet. Bad block is bad block and does not go away by erasing it. In
> > fact you _MUST NOT_ erase it, as bad block information is lost and
>
> I don't understand what is shipping time, your meaming is it was
> destroyed at the shipping time between the factory to retailer ?
Nope, the blocks were bad, when the chip was produced or do you believe that
the postman is a heavy source of gamma rays ? :)
--
Thomas
____________________________________________________
linutronix - competence in embedded & realtime linux
http://www.linutronix.de
mail: tglx@linutronix.de
next prev parent reply other threads:[~2002-12-04 10:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-03 21:42 IF eraseall will destryed(phys) the nand flash ? shadow
2002-12-04 10:01 ` Thomas Gleixner
2002-12-03 22:46 ` shadow
2002-12-04 10:35 ` Thomas Gleixner [this message]
2002-12-04 13:00 ` shadow
2002-12-04 10:51 ` Henrik Nordstrom
2002-12-04 13:03 ` shadow
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