+ "usbboot=" \
+ "setenv devnum ${usbdev}; " \
+ "setenv devtype usb; " \
+ "usb start ${usbdev}; " \
+ "if usb dev ${usbdev}; then " \
+ "if run loadbootenv; then " \
+ "echo Loaded environment from ${bootenv};" \
+ "run importbootenv;" \
+ "fi;" \
+ "if test -n $uenvcmd; then " \
+ "echo Running uenvcmd ...;" \
+ "run uenvcmd;" \
+ "fi;" \
+ "if run loadimage; then " \
+ "run loadfdt; " \
+ "echo Booting from usb ${usbdev}...; " \
+ "run usbargs;" \
+ "bootz ${loadaddr} - ${fdtaddr}; " \
+ "fi;" \
+ "fi\0" \