linux-kernel - Re: [PATCH 09/14] Blackfin SPI driver: Fix SPI driver to work with SPI flash ST25P16 on bf548

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Message-ID: <8bd0f97a0710311216l25f89b37v356fd44d7c1999da@mail.gmail.com>
Date:	Wed, 31 Oct 2007 14:16:07 -0500
From:	"Mike Frysinger" <vapier.adi@...il.com>
To:	"David Brownell" <david-b@...bell.net>
Cc:	spi-devel-general@...ts.sourceforge.net, bryan.wu@...log.com,
	"Sonic Zhang" <sonic.zhang@...log.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 09/14] Blackfin SPI driver: Fix SPI driver to work with SPI flash ST25P16 on bf548

On 10/31/07, David Brownell <david-b@...bell.net> wrote:
> On Wednesday 31 October 2007, Mike Frysinger wrote:
> > On 10/31/07, David Brownell <david-b@...bell.net> wrote:
> > > (ISTR the M25P16 in $SUBJECT has two read commands, one of
> > > which is only usable at clock rates below 33 MHz or so, but
> > > most other commands can work above that speed just fine.)
> >
> > 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)
-mike
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