[U-Boot] [PATCH] Allow U-Boot scripts to be placed in a .env file

[Wolfgang Denk]

Dear Simon Glass,

In message <1366155414-6525-1-git-send-email-sjg at chromium.org> you wrote:
> At present U-Boot environment variables, and thus scripts, are defined
> by CONFIG_EXTRA_ENV_SETTINGS. It is painful to add large amounts of text
> to this file and dealing with quoting and newlines is harder than it
> should be. It would be better if we could just type the script into a
> text file and have it included by U-Boot.
> 
> Add a feature that brings in a .env file associated with the board
> config, if present. To use it, create a file in include/configs
> with the same name as you could board config file, except with a
> .env extension instead of a .h extension. The variables should be
> separated by \0. Comments are permitted, using # as the first character
> in a line.

Please do not litter the include/configs/ directory with such stuff.
It's more than big enough already.  Please put such files into the
respective board directories.

And if you do something like this, then please go the way to the end.
Forget about the \0 termination, make it a plain text file instead,
something that can be used with "env import -t" as well (or created
with "env export -t").

Best regards,

Wolfgang Denk

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