Dear Stefano,
In message 51FB786E.4010908@denx.de you wrote:
Maybe can be mkenvimage a solution (tools/mkenvimage) ? It creates an environment image from a simple ASCII text. The resulting image could be concatenated together with u-boot and in CONFIG_EXTRA_ENV_SETTINGS we could have for all boards a way to load it. Only a first idea, but as we recognize the issue, any idea to solve it ?
There is a ton of options, all way better than hardcoding any such settings into the common default environment - "env import" allows to easily import variable settings in a number of formats (including plain text), so you can just dedicate some storage speace, either on a raw device (like an address / offset range in NOR / NAND flash, or some sectors on a block device, or a file in a file system, or whatever.
We never should extend the default environment into such a pile of stuff.
Best regards,
Wolfgang Denk