u-boot user space envtools config fiile example

cat /etc/fw_env.config
# MTD device name       Device offset   Env. size       Flash sector size       Number of sectors
/dev/mtd1               0x0000          0x10000          0x10000 1

       This example demo u-boot env on mtd partition index 1, start offset for mtd1 is 0,
u-boot env size define in your u-boot board config is 0x10000 ,flash sector size is 0x10000, number sector size is 1.