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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
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