From: David Brown <davidb@davidb.org>
To: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Cc: Nancy <nancydreaming@gmail.com>,
kmpark@infradead.org, linux-mtd@lists.infradead.org
Subject: Re: Does UBI support MLC nand flash?
Date: Wed, 2 Jan 2008 08:52:28 -0800 [thread overview]
Message-ID: <20080102165228.GA11327@old.davidb.org> (raw)
In-Reply-To: <20080102063945.5355d112@zod.rchland.ibm.com>
On Wed, Jan 02, 2008 at 06:39:45AM -0600, Josh Boyer wrote:
>On Wed, 2 Jan 2008 14:19:16 +0800
>Nancy <nancydreaming@gmail.com> wrote:
>
>> oh, forgot to metion UBI.
>> UBI has two headers for each LED/PED, they are not write at same time.
>> Is that against MLC nand's no ramdom write and write only once
>> permission?
>
>Not to my knowledge. The second header is written to the second page
>in the block if subpage writes aren't supported by the underlying
>chip. That should still work fine for MLC.
Many MLC devices will not allow you to write to the second page after
having written to the third or subsequent pages. Would this still work?
Dave
next prev parent reply other threads:[~2008-01-02 16:55 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-02 1:42 Does UBI support MLC nand flash? Nancy
2008-01-02 4:45 ` Kyungmin Park
2008-01-02 6:13 ` Nancy
2008-01-02 6:19 ` Nancy
2008-01-02 7:13 ` David Brown
2008-01-02 12:39 ` Josh Boyer
2008-01-02 16:52 ` David Brown [this message]
2008-01-02 17:13 ` Josh Boyer
2008-01-02 17:17 ` David Brown
2008-01-03 7:19 ` Nancy
2008-01-02 7:11 ` David Brown
2008-01-02 7:23 ` Kyungmin Park
[not found] ` <bae050c10801020133h3b121b2ft47911a0d84921868@mail.gmail.com>
2008-01-02 9:36 ` Nancy
2008-01-02 9:37 ` Nancy
2008-01-02 7:27 ` David Brown
2008-01-02 13:46 ` Adrian Hunter
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