From: Scott Wood <scottwood@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] NAND bad block table
Date: Tue, 4 Feb 2014 14:46:56 -0600 [thread overview]
Message-ID: <1391546816.6733.172.camel@snotra.buserror.net> (raw)
In-Reply-To: <52e923ea-96b0-4e9b-9c3f-b733cf46b144@CO9EHSMHS020.ehs.local>
On Tue, 2014-02-04 at 13:43 +0100, Michal Simek wrote:
> Hi Scott and others,
>
> I have a question regarding BBT position and number of blocks allocated
> for BBT.
>
> Did you face the issue with last 4 blocks broken in any NAND flash
> device since the default option in Linux/u-boot BBM is last 4 blocks?
>
> It doesn't mean that if the last 4 blocks are broken than the NAND flash
> device is broken too.
> Also I haven't seen any common binding for Linux kernel to change it.
>
> Has someone tried to improve this algorithm or process of storing BBT in a better way.
> For example just look for BBT from the end till any limit?
I don't recall if I've ever tested it personally, but that sort of
scanning is already there. Have you seen a problem with it?
-Scott
next prev parent reply other threads:[~2014-02-04 20:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-04 12:43 [U-Boot] NAND bad block table Michal Simek
2014-02-04 20:46 ` Scott Wood [this message]
2014-02-05 14:16 ` Michal Simek
2014-02-05 19:16 ` Scott Wood
[not found] ` <155aac48-cedd-4daa-80b0-577f85080950@CO1EHSMHS005.ehs.local>
2014-02-12 0:06 ` Scott Wood
2014-02-12 0:47 ` Brian Norris
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