## linux/drivers/mtd/onenand/Kconfig#menuconfig MTD_ONENAND	tristate "OneNAND Device Support"	depends on MTD	help	  This enables support for accessing all type of OneNAND flash	  devices. For further information see	  <http://www.samsung.com/Products/Semiconductor/OneNAND/index.htm>if MTD_ONENANDconfig MTD_ONENAND_VERIFY_WRITE	bool "Verify OneNAND page writes"	help	  This adds an extra check when data is written to the flash. The	  OneNAND flash device internally checks only bits transitioning	  from 1 to 0. There is a rare possibility that even though the	  device thinks the write was successful, a bit could have been	  flipped accidentally due to device wear or something else.config MTD_ONENAND_GENERIC	tristate "OneNAND Flash device via platform device driver"	depends on ARM	help	  Support for OneNAND flash via platform device driver.config MTD_ONENAND_OMAP2	tristate "OneNAND on OMAP2/OMAP3 support"	depends on MTD_ONENAND && (ARCH_OMAP2 || ARCH_OMAP3)	help	  Support for a OneNAND flash device connected to an OMAP2/OMAP3 CPU	  via the GPMC memory controller.config MTD_ONENAND_OTP	bool "OneNAND OTP Support"	select HAVE_MTD_OTP	help	  One Block of the NAND Flash Array memory is reserved as	  a One-Time Programmable Block memory area.	  Also, 1st Block of NAND Flash Array can be used as OTP.	  The OTP block can be read, programmed and locked using the same	  operations as any other NAND Flash Array memory block.	  OTP block cannot be erased.	  OTP block is fully-guaranteed to be a valid block.config MTD_ONENAND_2X_PROGRAM	bool "OneNAND 2X program support"	help	  The 2X Program is an extension of Program Operation.	  Since the device is equipped with two DataRAMs, and two-plane NAND	  Flash memory array, these two component enables simultaneous program	  of 4KiB. Plane1 has only even blocks such as block0, block2, block4	  while Plane2 has only odd blocks such as block1, block3, block5.	  So MTD regards it as 4KiB page size and 256KiB block size	  Now the following chips support it. (KFXXX16Q2M)	    Demux: KFG2G16Q2M, KFH4G16Q2M, KFW8G16Q2M,	    Mux:   KFM2G16Q2M, KFN4G16Q2M,	  And more recent chipsconfig MTD_ONENAND_SIM	tristate "OneNAND simulator support"	depends on MTD_PARTITIONS	help	  The simulator may simulate various OneNAND flash chips for the	  OneNAND MTD layer.endif # MTD_ONENAND