[U-Boot] saveenv problems

Wolfgang Denk
2008-10-31T11:30:33Z

Dear Georg,

In message <490AE49C.80304@team-ctech.de> you wrote:
>
> i have a strange problem with the saveenv command, or maybe with my
> config :)
>
> After booting a fresh compiled u-boot with the default environment i
> can save the env without any problems. U-boot unprotect, erase and
> write the flash. but after add a new env-variable, e.g. bootargs,
> saveenv will unprotect the flash, erase the flash but then u-boot will
> not write the flash because the "Flash not Erased" error.
>
> Is there a different in addressing the env during boot-time, or read
> and write ?

Timing...

You may see a problem similar to mine (patch just went into the CFI
repo).

What exactly is your flash configuration? Bus width? Which flash
chips? How can the bus be read? I mean, for example if you use 2 x 16
bit devices in parallel to provide a 32 bit bus, can your CPU
actually perform an atomic 32 bit read from that bus? [Same for 16 or
64 instead of 32].

Best regards,

Wolfgang Denk

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