Re: Fwd: [PATCH 2/3] I2C: at24: add kernel interface for reading/writing EEPROM

[David Brownell <david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>]

On Tuesday 26 August 2008, Trent Piepho wrote:
> Lots of tv cards have eeproms with configuration information.  They use an
> I2C driver called tveeprom that exports this:
> 
> int tveeprom_read(struct i2c_client *c, unsigned char *eedata, int len)

That presumes the driver somehow has access to that I2C client.

(Also, that it's an I2C EEPROM.  I keep wanting to have something
usable for SPI EEPROMs and NVRAM too.  But maybe nobody else cares.)

 
> > Last I heard, the U-Boot policy was not to touch controllers that are
> > not required during boot.  Despite relatively common cases like needing
> > to set up MAC addresses ... maybe this patch of Kevin's can make it a
> > bunch easier to cope with that U-Boot policy.  :)
> 
> U-boot can put the MAC address into a property of the MAC's device node in
> the OF device tree (which u-boot passes to the kernel).

Maybe with PowerPC it does.  Not on ARM.  ;)



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