Root/drivers/mtd/onenand/Kconfig

1menuconfig 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
10if MTD_ONENAND
11
12config 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
21config MTD_ONENAND_GENERIC
22    tristate "OneNAND Flash device via platform device driver"
23    help
24      Support for OneNAND flash via platform device driver.
25
26config 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
33config 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
41config MTD_ONENAND_OTP
42    bool "OneNAND OTP Support"
43    select HAVE_MTD_OTP
44    help
45      One Block of the NAND Flash Array memory is reserved as
46      a One-Time Programmable Block memory area.
47      Also, 1st Block of NAND Flash Array can be used as OTP.
48
49      The OTP block can be read, programmed and locked using the same
50      operations as any other NAND Flash Array memory block.
51      OTP block cannot be erased.
52
53      OTP block is fully-guaranteed to be a valid block.
54
55config MTD_ONENAND_2X_PROGRAM
56    bool "OneNAND 2X program support"
57    help
58      The 2X Program is an extension of Program Operation.
59      Since the device is equipped with two DataRAMs, and two-plane NAND
60      Flash memory array, these two component enables simultaneous program
61      of 4KiB. Plane1 has only even blocks such as block0, block2, block4
62      while Plane2 has only odd blocks such as block1, block3, block5.
63      So MTD regards it as 4KiB page size and 256KiB block size
64
65      Now the following chips support it. (KFXXX16Q2M)
66        Demux: KFG2G16Q2M, KFH4G16Q2M, KFW8G16Q2M,
67        Mux: KFM2G16Q2M, KFN4G16Q2M,
68
69      And more recent chips
70
71config MTD_ONENAND_SIM
72    tristate "OneNAND simulator support"
73    help
74      The simulator may simulate various OneNAND flash chips for the
75      OneNAND MTD layer.
76
77endif # MTD_ONENAND
78

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