[U-Boot] Details of fw_env.config file

[Rahanesh]

Hi All,.

I wanted to know the meaning of Device Offset in the config file 
(fw_env.config).

I used it as

  MTD device name   Device offset   Env. size   Flash sector size   
Number of sectors
   /dev/mtd0                   0x0000        0x1000      0x10000

The partition mtd0 contains uboot as well as Environment variables.
when i used fw_setenv command to set the boot delay to 6, it actually 
erased my u-boot itself.

Should i Keep Environment variables in separate mtd partition say mtd1.?

Is it enough to change the device offset to point the environment 
variables within mtd1 itself?

Please help!!!!


Thanks
Rahanesh