hw/nvram/Kconfig - qemu - Git at Google

 config DS1225Y
     bool

 config AT24C
     bool
     depends on I2C

 config MAC_NVRAM
     bool
     select CHRP_NVRAM

 # NMC93XX uses the NS uWire interface (similar to SPI but less configurable)
 config NMC93XX_EEPROM
     bool

 config CHRP_NVRAM
     bool
	config DS1225Y
	bool

	config AT24C
	bool
	depends on I2C

	config MAC_NVRAM
	bool
	select CHRP_NVRAM

	# NMC93XX uses the NS uWire interface (similar to SPI but less configurable)
	config NMC93XX_EEPROM
	bool

	config CHRP_NVRAM
	bool