Dear Michael Walle, In message <201111082330.40253.mich...@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 -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de The Buddha, the Godhead, resides quite as comfortably in the circuits of a digital computer or the gears of a cycle transmission as he does at the top of a mountain or in the petals of a flower. - R. Pirsig, "Zen and the Art of Motorcycle Maintenance" _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot