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Linux/drivers/mtd/onenand/Kconfig

  1 menuconfig MTD_ONENAND
  2         tristate "OneNAND Device Support"
  3         depends on MTD
  4         depends on HAS_IOMEM
  5         help
  6           This enables support for accessing all type of OneNAND flash
  7           devices. For further information see
  8           <http://www.samsung.com/Products/Semiconductor/OneNAND/index.htm>
  9 
 10 if MTD_ONENAND
 11 
 12 config MTD_ONENAND_VERIFY_WRITE
 13         bool "Verify OneNAND page writes"
 14         help
 15           This adds an extra check when data is written to the flash. The
 16           OneNAND flash device internally checks only bits transitioning
 17           from 1 to 0. There is a rare possibility that even though the
 18           device thinks the write was successful, a bit could have been
 19           flipped accidentally due to device wear or something else.
 20 
 21 config MTD_ONENAND_GENERIC
 22         tristate "OneNAND Flash device via platform device driver"
 23         help
 24           Support for OneNAND flash via platform device driver.
 25 
 26 config MTD_ONENAND_OMAP2
 27         tristate "OneNAND on OMAP2/OMAP3 support"
 28         depends on ARCH_OMAP2 || ARCH_OMAP3
 29         help
 30           Support for a OneNAND flash device connected to an OMAP2/OMAP3 CPU
 31           via the GPMC memory controller.
 32 
 33 config MTD_ONENAND_SAMSUNG
 34         tristate "OneNAND on Samsung SOC controller support"
 35         depends on ARCH_S3C64XX || ARCH_S5PC100 || ARCH_S5PV210 || ARCH_EXYNOS4
 36         help
 37           Support for a OneNAND flash device connected to an Samsung SOC.
 38           S3C64XX/S5PC100 use command mapping method.
 39           S5PC110/S5PC210 use generic OneNAND method.
 40 
 41 config MTD_ONENAND_OTP
 42         bool "OneNAND OTP Support"
 43         help
 44           One Block of the NAND Flash Array memory is reserved as
 45           a One-Time Programmable Block memory area.
 46           Also, 1st Block of NAND Flash Array can be used as OTP.
 47 
 48           The OTP block can be read, programmed and locked using the same
 49           operations as any other NAND Flash Array memory block.
 50           OTP block cannot be erased.
 51 
 52           OTP block is fully-guaranteed to be a valid block.
 53 
 54 config MTD_ONENAND_2X_PROGRAM
 55         bool "OneNAND 2X program support"
 56         help
 57           The 2X Program is an extension of Program Operation.
 58           Since the device is equipped with two DataRAMs, and two-plane NAND
 59           Flash memory array, these two component enables simultaneous program
 60           of 4KiB. Plane1 has only even blocks such as block0, block2, block4
 61           while Plane2 has only odd blocks such as block1, block3, block5.
 62           So MTD regards it as 4KiB page size and 256KiB block size
 63 
 64           Now the following chips support it. (KFXXX16Q2M)
 65             Demux: KFG2G16Q2M, KFH4G16Q2M, KFW8G16Q2M,
 66             Mux:   KFM2G16Q2M, KFN4G16Q2M,
 67 
 68           And more recent chips
 69 
 70 endif # MTD_ONENAND

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