Kconfig

config OF_FLATTREE
	bool
	depends on OF

config OF_DEVICE
	def_bool y
	depends on OF && (SPARC || PPC_OF || MICROBLAZE)

config OF_GPIO
	def_bool y
	depends on OF && (PPC_OF || MICROBLAZE) && GPIOLIB
	help
	  OpenFirmware GPIO accessors

config OF_I2C
	def_tristate I2C
	depends on (PPC_OF || MICROBLAZE) && I2C
	help
	  OpenFirmware I2C accessors

config OF_SPI
	def_tristate SPI
	depends on OF && (PPC_OF || MICROBLAZE) && SPI
	help
	  OpenFirmware SPI accessors

config OF_MDIO
	def_tristate PHYLIB
	depends on OF && PHYLIB
	help
	  OpenFirmware MDIO bus (Ethernet PHY) accessors