[U-Boot] [PATCH] wandboard: add pxe support, set default boot command like highbank

[Wolfgang Denk]

Dear Rob Herring,

In message <CAL_JsqJTg4CVfk0o9hLd4ZVksj+DNEsKLjcv6T7-6F-=BR+J+Q at mail.gmail.com> you wrote:
>
> > Why would you ever want to compile this into U-Boot at all?  Then any
> > changes you need to make mean compiling and installing a new U-Boot,
> > which is something you normally don't want to do.
> 
> You may want to have factory default and "user" settings. Building in
> the factory settings would be one way to accomplish that.

No. Handling these independently, outside of the compiled U-Boot image
is as easy, and much more flexible.

> > U-Boot is perfectly able to import such settings from text files (or
> > text blobs stored somewhere, even attached to the U-Boot image, if you
> > want), so just use the text files separately, instead of hard
> > compiling them into the code.
> 
> In my case, I don't want to compile the environment into u-boot. But
> some people do as I copied my scripts from Tegra which has them
> built-in. Since built-in is C and standalone is text file, sharing is
> impossible. That is the main thing I'd like to see changed. Whether we
> support merging builtin and standalone envs is secondary.

Who says "impossible" here?  When using a file system with write
support, you can use "env export -t" to create a text representation
and write it out to the file system (or store it in some reserved area
on some storage device).

Best regards,

Wolfgang Denk

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