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From: David Woodhouse <dwmw2@infradead.org>
To: Xavier DEBREUIL <xde@inventel.fr>
Cc: linux-mtd@lists.infradead.org
Subject: Re: non cfi flash memory
Date: Tue, 19 Jun 2001 14:24:34 +0100	[thread overview]
Message-ID: <4395.992957074@redhat.com> (raw)
In-Reply-To: <3B2F4DEA.6839BBD0@inventel.fr>


xde@inventel.fr said:
> In fact, as the intel flash 28F160x3 is not cfi, it is useless to use
> do_map_probe("cfi") or something else as I tried to. What should be
> written is the equivalent of amd_flash.c for the flash family which
> include TE28Fxxxx3 from INTEL, M28Wxxx from ST and so on.

No. You don't need to write a whole driver for it. The existing
cfi_cmdset_0001 code can driver the chips just fine. All you need to do is
write a _probe_ routine which can pass control to the existing code, just
like the cfi_probe does.

There's already a hack in the cfi_probe code to find some non-CFI 
AMD-compatible chips and use the cfi_cmdset_0002 back end. You want 
something similar - but _don't_ add further hacks to the cfi_probe code, 
make it an entirely new probe routine like the AMD one should probably 
have been.

--
dwmw2

  reply	other threads:[~2001-06-19 13:19 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-06-19 13:04 non cfi flash memory Xavier DEBREUIL
2001-06-19 13:24 ` David Woodhouse [this message]
2001-06-19 13:43   ` Abraham vd Merwe
2001-06-19 13:51     ` David Woodhouse
2001-06-19 17:09       ` Xavier DEBREUIL

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