LXR linux/drivers/mtd/onenand/Kconfig

   1#
   2# linux/drivers/mtd/onenand/Kconfig
   3#
   4
   5menuconfig MTD_ONENAND
   6        tristate "OneNAND Device Support"
   7        depends on MTD
   8        help
   9          This enables support for accessing all type of OneNAND flash
  10          devices. For further information see
  11          <http://www.samsung.com/Products/Semiconductor/OneNAND/index.htm>
  12
  13if MTD_ONENAND
  14
  15config MTD_ONENAND_VERIFY_WRITE
  16        bool "Verify OneNAND page writes"
  17        help
  18          This adds an extra check when data is written to the flash. The
  19          OneNAND flash device internally checks only bits transitioning
  20          from 1 to 0. There is a rare possibility that even though the
  21          device thinks the write was successful, a bit could have been
  22          flipped accidentally due to device wear or something else.
  23
  24config MTD_ONENAND_GENERIC
  25        tristate "OneNAND Flash device via platform device driver"
  26        depends on ARM
  27        help
  28          Support for OneNAND flash via platform device driver.
  29
  30config MTD_ONENAND_OTP
  31        bool "OneNAND OTP Support"
  32        help
  33          One Block of the NAND Flash Array memory is reserved as
  34          a One-Time Programmable Block memory area.
  35          Also, 1st Block of NAND Flash Array can be used as OTP.
  36
  37          The OTP block can be read, programmed and locked using the same
  38          operations as any other NAND Flash Array memory block.
  39          OTP block cannot be erased.
  40
  41          OTP block is fully-guaranteed to be a valid block.
  42
  43config MTD_ONENAND_2X_PROGRAM
  44        bool "OneNAND 2X program support"
  45        help
  46          The 2X Program is an extension of Program Operation.
  47          Since the device is equipped with two DataRAMs, and two-plane NAND
  48          Flash memory array, these two component enables simultaneous program
  49          of 4KiB. Plane1 has only even blocks such as block0, block2, block4
  50          while Plane2 has only odd blocks such as block1, block3, block5.
  51          So MTD regards it as 4KiB page size and 256KiB block size
  52
  53          Now the following chips support it. (KFXXX16Q2M)
  54            Demux: KFG2G16Q2M, KFH4G16Q2M, KFW8G16Q2M,
  55            Mux:   KFM2G16Q2M, KFN4G16Q2M,
  56
  57          And more recent chips
  58
  59config MTD_ONENAND_SIM
  60        tristate "OneNAND simulator support"
  61        depends on MTD_PARTITIONS
  62        help
  63          The simulator may simulate various OneNAND flash chips for the
  64          OneNAND MTD layer.
  65
  66endif # MTD_ONENAND
  67