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From: David Brownell <david-b@pacbell.net>
To: "Mike Frysinger" <vapier.adi@gmail.com>
Subject: Re: [PATCH 09/14] Blackfin SPI driver: Fix SPI driver to work with SPI flash ST25P16 on bf548
Date: Wed, 31 Oct 2007 13:14:00 -0700
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Cc: spi-devel-general@lists.sourceforge.net, bryan.wu@analog.com,
       "Sonic Zhang" <sonic.zhang@analog.com>, linux-kernel@vger.kernel.org
References: <1193735885-8202-1-git-send-email-bryan.wu@analog.com> <200710311201.29643.david-b@pacbell.net> <8bd0f97a0710311216l25f89b37v356fd44d7c1999da@mail.gmail.com>
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> > > pretty much all SPI flashes have two read commands ("slow" and "fast"
> > > as they're typically called).
> >
> > Not DataFlash.
> 
> doesnt it ?  AT45DB642D says 0x0B is fast (up to 66mhz) while 0x03 (up to 33mhz)

And ...041B, ...081B, ...161B, ...321, ...321C, and others don't.
(From a quick scan of datasheets I have locally...)

Those 0x0B and 0x03 commands are "new", and have never been
used by the Linux DataFlash drivers.

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