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

[Otavio Salvador]

On Tue, Aug 6, 2013 at 12:50 PM, Stephen Warren <swarren at wwwdotorg.org> wrote:
> On 08/06/2013 05:37 AM, Wolfgang Denk wrote:
>> 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.
>
> We have the *default* environment built-in, which is used when no valid
> environment is found in flash. If there's an environment in flash, it
> gets used rather than the built-in default.

How can someone 'overwrite' the default environment from system or
when generating a FIT image?

I am interested in let my customers to revert back to a sane default running:

env -f -d -a
saveenv


-- 
Otavio Salvador                             O.S. Systems
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