From: Charles Forsyth <forsyth@terzarima.net>
To: 9fans@9fans.net
Subject: Re: [9fans] arm ports update
Date: Thu, 13 May 2010 11:41:08 +0100 [thread overview]
Message-ID: <fbde64b8f2d09a7532dc424a3cd53e19@terzarima.net> (raw)
In-Reply-To: <67b4fb8b76d32f954fd53fd84d757a66@plan9.bell-labs.com>
>the flash translation layer, which was developed for nor flash and is
>suspect with nand flash
it's not "suspect" as such: just not implemented because it's the wrong approach.
FTL's design assumes you can rewrite a word, flipping bits off (but never on),
to change a physical/logical map efficiently. fine with NOR, it allows that easily.
drivers for NAND would need to do something more costly to emulate that effect,
because the granularity is much larger, and the organisation and rules generally are different.
i don't think they bother (because it's not a good idea) so it probably wouldn't work.
next prev parent reply other threads:[~2010-05-13 10:41 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-13 3:42 geoff
2010-05-13 4:24 ` Jacob Todd
2010-05-13 10:41 ` Charles Forsyth [this message]
2010-05-13 16:06 ` Boo
2010-05-13 16:48 ` Skip Tavakkolian
2010-05-13 16:58 ` David Leimbach
2010-05-13 19:30 ` Gorka Guardiola
2010-05-13 19:56 ` David Leimbach
2010-05-13 20:56 ` Skip Tavakkolian
2010-05-13 21:05 ` David Leimbach
2010-05-13 22:29 ` Skip Tavakkolian
2010-05-14 3:29 ` David Leimbach
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