In message 027c01c78394$16500590$01c4af0a@Glamdring you wrote:
Why should you care if the customer sets a configuration value at compile time or dynamically?
I don't care about this.
By setting things at compile time, you allow the board to boot up, download a script which gets executed by "autoscr" This script will sets the REAL values for the network. Obviously the values should only be used until manually changed.
OK, in such a configuration you can add the values to the board config file, as there is no need to change them frequently, right?
Not sure, if this is your problem.
No.
Assume you have no serial communication available... How do you reconfigure the system?
We are not talking about reconfiguration, but about how to initialize the default environment. These are two different things.
Can you explain how to download the environment using the network if you are not allowed to compile in the network parameters?
You don't have to download such parameters.
Please feel free to set these values somewhere during board production, but you better not embed them into the default U-Boot image. There are several methods to initialize such parameters which are much cleaner. For example, some boards use some hardware ID block which gets written separately from the U-Boot image, which then can contain board specific parameters like serial number, MAC address, and - if you like - additional default netowrk configuration.
Best regards,
Wolfgang Denk