From: Ollie Lho <ollie@sis.com.tw>
To: Felix Radensky <felix@allot.com>
Cc: Linux-mtd <linux-mtd@lists.infradead.org>
Subject: Re: DOC problems on PowerPC
Date: Wed, 16 May 2001 08:34:06 +0800 [thread overview]
Message-ID: <3B01CAFE.5397FA91@sis.com.tw> (raw)
In-Reply-To: 3AFFE80B.DCE1B139@allot.com
Felix Radensky wrote:
>
> Hi, all
>
> I was able to solve the DOC problems on PowerPC I've reported yesterday.
>
> All I had to do is to run "eraseall /dev/mtd0", then run "nftl_format
> /dev/mtd0"
> and then create partitions with fdisk.
>
> Can someone please explain me the difference between eraseall and
> nftl_format.
> HOWTO says nothing about it.
>
For flash devices either NOR type or NAND type. You can only turn
each bits for 1 state to 0 by a "write" command. If you want to
turn a bit from 0 to 1, you have to erase the device. Each device
has its onw minimal erase size i.e. if you want to erase onely 1 byte
in a erase region, you have to erase the whole erase region.
The nftl_format is used somewht like "low-level" format for old
HDs.
Ollie
prev parent reply other threads:[~2001-05-16 0:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-14 14:13 DOC problems on PowerPC Felix Radensky
2001-05-14 14:36 ` Shuh C Chang
2001-05-16 0:34 ` Ollie Lho [this message]
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