升级分区

root@Xarina:/dev/gpio# cat /proc/mtd 

dev:    size   erasesize  name

mtd0: 00800000 00020000 "spl"

mtd1: 00500000 00020000 "uboot"

mtd2: 00080000 00020000 "uboot_env_0"

mtd3: 00080000 00020000 "uboot_env_1"

mtd4: 00600000 00020000 "uboot_recover"

mtd5: 01000000 00020000 "firmware_0"

mtd6: 01000000 00020000 "firmware_1"

mtd7: 08b80000 00020000 "rootfs_0"

mtd8: 08b80000 00020000 "rootfs_1"

mtd9: 01e00000 00020000 "usersection_0"

mtd10: 00600000 00020000 "userparam_0"

mtd11: 00600000 00020000 "log"

mtd12: 08ac0000 00020000 "reserved"