[U-Boot-Users] Arithmetic expansion from shell

[Wolfgang Denk]

In message <7114f92a0706070454g38b5d8e9s135236addf46e216 at mail.gmail.com> you wrote:
>
> I wanted to write a script which could parse file image header before
> booting. Initially we thought Hush script could do the job but it
> seems the arithmetic expansion is not supported with either the
> default command parser or the hush shell (no 'let' command either).
> Could you please confirm if this is correct?

Yes.

> Also, if the above is correct, I am planning to write a bootstrap
> function/command (board specific code) with something like
> bootcmd=<bootsrap init cmd>; bootm

What would that be good for?

> Is this write approach?

Depends on what you want to do. I've been doing a lot of things with
U-Boot, and so far I never needed this.

Best regards,

Wolfgang Denk

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