[U-Boot] environment variables crc

[Wolfgang Denk]

Dear Gerrit Van Damme,

In message <49ED809D.5030702 at mgb-tech.com> you wrote:
>
> The saveenv command doesn't work for me because then the default env 
> variables are stored and this is what I want to avoid.

Then change the environment before running saveenv? Or even better -
adjust the default environment so it matches your needs. What's the
problem?

> It's already a good thing that I can see that the first 4 bytes really 
> look like the CRC of the environment. So this was really helpfull info.
> Now you tell me it's calculated using the environment. In the source 
> code I found the env variables crc calculated for a size of ENV_SIZE, but
> I was unable to see how it was defined. Do you have more info on this?

Hmmm... "grep" is your friend.

> Is the environment data (for crc calculation) terminated by a certain 
> char (or sequence of chars) ?

No. Not for CRC calculation.

Best regards,

Wolfgang Denk

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