[U-Boot] Boot based on I2C EEPROM value

[Detlev Zundel <dzu@denx.de>]

Hi again,

> Ah, this is interesting.  I was about to tell you to use the "standard"
> i2c commands to transfer data from the chip into memory and then use the
> hush shell and the standard "itest *addr = 1" facility.  Unfortunately,
> the "i2c" subsystem does not implement such functionality.  So currently
> I would advise to implement such "read" and "write" operations to
> transfer to/from memory.
> 
> With this addition, you could even propose a patch to remove crc32
> subcommand from i2c as this can then be done in two steps.  So maybe you
> can even get away with this addition without adding anything to the
> binary size of U-Boot ;)
 
In the meantime I found the "eeprom" command, which should allow you to
transfer the data into memory.  Still I believe the proposed
additions/removals to the "i2c" subsystem to be worthwhile.

Cheers
  Detlev

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