Dear Michael Walle,
In message 201111082330.40253.michael@walle.cc you wrote:
There are more clever ways than just to clear the environment. We have "env export" and "env import", so you can create one or more backup copies or user proviles. Instead of clearing the environment, you could also load one such previously saved user profile, which then would contain the MAC address.
thanks for the hint, but there is only 512kb flash on this board (with 64k sectors). I don't think there is enough room for a second copy of the environment.
You don't need a separate sector. How bis is your environment/ I bet if fits easily in 4 KiB or so - just find an unused part of a sector, and put it there. Yes, upating it will be more complicated, as you hav eto read that sector into RAM, replace the larst part, and write it back, but resource-restricted systems require efficient use of memory.
i think there are more boards like this, esp. since there is this mac randomization code within the mvgbe driver.
I don't want to have that in mainline.
Best regards,
Wolfgang Denk