[U-Boot-Users] [patch] add support for "eeprom info"

Mike Frysinger
2008-01-23T22:29:17Z

On Wednesday 23 January 2008, Wolfgang Denk wrote:
> In message <200801231615.09447.vapier@gentoo.org> you wrote:
> > > ... and I2C.
> >
> > i have no idea, i dont use i2c flashes. i dont know if there is any
> > standard for them. if there isnt, easy enough to protect with
> > CONFIG_SPI.
>
> We're not talking about flashes. We're talking about EEPROM. For
> example things like a AT24C164 or similar, see for example
> http://www.atmel.com/dyn/resources/prod_documents/doc0105.pdf

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
would be useless. if this is normal among i2c eeproms, i'll repost the patch
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 "just
works".
-mike
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