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#
# 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_ONENAND

config 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_OTP
        bool "OneNAND OTP Support"
        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 chips

config 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