iPhone command list

command list:
	help           this list
	script         run script at specific address
	go             jump directly to address
	bootx          boot a kernel cache at specified address
	diags          boot into diagnostics (if present)
	tsys           boot into tsys (if present)
	bdev           block device commands
	image          flash image inspection
	fs             file system commands
	fsboot         try to boot kernel at /kernelcache
	devicetree     create a device tree from the specified address
	ramdisk        create a ramdisk from the specified address
	tftp           tftp via ethernet to/from device
	eload          tftp via ethernet from hardcoded install server
	halt           halt the system (good for JTAG)
	reboot         reboot the device
	poweroff       power off the device
	md             memory display - 32bit
	mdh            memory display - 16bit
	mdb            memory display - 8bit
	mw             memory write - 32bit
	mwh            memory write - 16bit
	mwb            memory write - 8bit
	mws            memory write - string
	crc            POSIX 1003.2 checksum of memory
	task           examine system tasks
        printenv       print one or all environment variables
	setenv         set an environment variable

	clearenv       clear all environment variables

	saveenv        save current environment to flash

	run            use contents of environment var as script

	bgcolor        set the display background color

	setpicture