u-boot/drivers/dfu/Kconfig

menu "DFU support"

config USB_FUNCTION_DFU
	bool

if CMD_DFU
config DFU_TFTP
	bool "DFU via TFTP"
	help
	  This option allows performing update of DFU-managed medium with data
	  sent via TFTP boot.

	  Detailed description of this feature can be found at ./doc/README.dfutftp

config DFU_MMC
	bool "MMC back end for DFU"
	help
	  This option enables using DFU to read and write to MMC based storage.

config DFU_NAND
	bool "NAND back end for DFU"
	help
	  This option enables using DFU to read and write to NAND based
	  storage.

config DFU_RAM
	bool "RAM back end for DFU"
	help
	  This option enables using DFU to read and write RAM on the target.

config DFU_SF
	bool "SPI flash back end for DFU"
	help
	  This option enables using DFU to read and write to SPI flash based
	  storage.

endif
endmenu