+config USB_FUNCTION_SDP
+ bool "Enable USB SDP (Serial Download Protocol)"
+ help
+ Enable Serial Download Protocol (SDP) device support in U-Boot. This
+ allows to download images into memory and execute (jump to) them
+ using the same protocol as implemented by the i.MX family's boot ROM.
+
+config USB_FUNCTION_THOR
+ bool "Enable USB THOR gadget"
+ help
+ Enable Tizen's THOR download protocol support in U-Boot. It
+ allows downloading images into memory and flash them to target device.
+