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