
API to firmware upgrade application:
------------------------------------

1. The NSP firmware file must be placed into /var directory under any name
less than 64 characters long. For example, nsp.firmware.img.
2. The upgrade application must be called with execve() system call.
The command line syntax is:
	/usr/bin/upgrade -f nsp.firmware.img
3. The procedure will kill every user process in the system, unmount
flash partition, program the specified image, set MTD variables, and
reboot the system.



