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From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] [patch] add support for "eeprom info"
Date: Thu, 24 Jan 2008 01:44:22 +0100	[thread overview]
Message-ID: <20080124004422.7E9812430C@gemini.denx.de> (raw)
In-Reply-To: Your message of "Wed, 23 Jan 2008 17:29:17 EST." <200801231729.18316.vapier@gentoo.org>

In message <200801231729.18316.vapier@gentoo.org> you wrote:
> 
> the semantics are irrelevant.  it's an external non-volatile memory device
> accessed via the eeprom command.  the document you posted looks like that 
> device doesnt have any way of querying it, so eeprom_info() for that device 

Indeed. There is no way to query such devices.

> would be useless.  if this is normal among i2c eeproms, i'll repost the patch 

Thsi is normal for basicly *all* EEPROM and FRAM devices I know with
I2C or SPI interfaces.

> with eeprom_info behind CONFIG_SPI.  most SPI flashes nowadays support the
> jedec id command which allows for dynamic detection (which is how the 
> Blackfin SPI driver that i wrote works).  hook up any SPI flash and it "jus> t 
> works".

I think you are doing something wrong when you try to use "eeprom" to
access "SPI flash" - these are differnt entities...

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
"I find this a nice feature but it is not according to  the  documen-
tation. Or is it a BUG?"   "Let's call it an accidental feature. :-)"
                       - Larry Wall in <6909@jpl-devvax.JPL.NASA.GOV>

  reply	other threads:[~2008-01-24  0:44 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-23 16:13 [U-Boot-Users] [patch] add support for "eeprom info" Mike Frysinger
2008-01-23 21:06 ` Wolfgang Denk
2008-01-23 21:15   ` Mike Frysinger
2008-01-23 21:23     ` Wolfgang Denk
2008-01-23 22:29       ` Mike Frysinger
2008-01-24  0:44         ` Wolfgang Denk [this message]
2008-01-24  3:39           ` Mike Frysinger
2008-01-24  4:24             ` Ben Warren
2008-01-24  5:17               ` Mike Frysinger
2008-01-24 11:13                 ` Wolfgang Denk
2008-01-25 13:31                   ` Mike Frysinger
2008-01-24  9:13           ` Mike Frysinger
2008-01-24 11:31             ` Wolfgang Denk
2008-01-25 13:33               ` Mike Frysinger
2008-01-25 15:09                 ` Wolfgang Denk
2008-01-25 16:02                   ` Mike Frysinger
2008-01-25 16:54                     ` J. William Campbell
2008-01-25 17:21                       ` Mike Frysinger

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