[U-Boot] General Flash Programming Error

[Jerry Zhang]

Hello, u-boot world!

I have wrote u-boot (U-Boot 2009.01-rc1 ) into my smdk2410 board.

But when i issued protect off all and then setenv command , i got error as
following:

SMDK2410 # saveenv
Saving Environment to Flash...
Un-Protected 1 sectors
Erasing Flash...Erasing sector 10 ... ok.
Erased 1 sectors
Writing to Flash... General Flash Programming Error
Protected 1 sectors

Why could it be this? How to fix it?
Another question, how to get one variable's Location in flash with its name?


Thanks in advance!

Jerry.Zhang