drivers/mtd/nand/Kconfig

   1 menu "NAND Device Support"
   2
   3 config SYS_NAND_SELF_INIT
   4         bool
   5         help
   6           This option, if enabled, provides more flexible and linux-like
   7           NAND initialization process.
   8
   9 config NAND_DENALI
  10         bool "Support Denali NAND controller"
  11         select SYS_NAND_SELF_INIT
  12         help
  13           Enable support for the Denali NAND controller.
  14
  15 config SYS_NAND_DENALI_64BIT
  16         bool "Use 64-bit variant of Denali NAND controller"
  17         depends on NAND_DENALI
  18         help
  19           The Denali NAND controller IP has some variations in terms of
  20           the bus interface.  The DMA setup sequence is completely differenct
  21           between 32bit / 64bit AXI bus variants.
  22
  23           If your Denali NAND controller is the 64-bit variant, say Y.
  24           Otherwise (32 bit), say N.
  25
  26 config NAND_DENALI_SPARE_AREA_SKIP_BYTES
  27         int "Number of bytes skipped in OOB area"
  28         depends on NAND_DENALI
  29         range 0 63
  30         help
  31           This option specifies the number of bytes to skip from the beginning
  32           of OOB area before last ECC sector data starts.  This is potentially
  33           used to preserve the bad block marker in the OOB area.
  34
  35 config NAND_VF610_NFC
  36         bool "Support for Freescale NFC for VF610/MPC5125"
  37         select SYS_NAND_SELF_INIT
  38         help
  39           Enables support for NAND Flash Controller on some Freescale
  40           processors like the VF610, MPC5125, MCF54418 or Kinetis K70.
  41           The driver supports a maximum 2k page size. The driver
  42           currently does not support hardware ECC.
  43
  44 choice
  45         prompt "Hardware ECC strength"
  46         depends on NAND_VF610_NFC
  47         default SYS_NAND_VF610_NFC_45_ECC_BYTES
  48         help
  49           Select the ECC strength used in the hardware BCH ECC block.
  50
  51 config SYS_NAND_VF610_NFC_45_ECC_BYTES
  52         bool "24-error correction (45 ECC bytes)"
  53
  54 config SYS_NAND_VF610_NFC_60_ECC_BYTES
  55         bool "32-error correction (60 ECC bytes)"
  56
  57 endchoice
  58
  59 config NAND_PXA3XX
  60         bool "Support for NAND on PXA3xx and Armada 370/XP/38x"
  61         select SYS_NAND_SELF_INIT
  62         help
  63           This enables the driver for the NAND flash device found on
  64           PXA3xx processors (NFCv1) and also on Armada 370/XP (NFCv2).
  65
  66 comment "Generic NAND options"
  67
  68 # Enhance depends when converting drivers to Kconfig which use this config
  69 # option (mxc_nand, ndfc, omap_gpmc).
  70 config SYS_NAND_BUSWIDTH_16BIT
  71         bool "Use 16-bit NAND interface"
  72         depends on NAND_VF610_NFC
  73         help
  74           Indicates that NAND device has 16-bit wide data-bus. In absence of this
  75           config, bus-width of NAND device is assumed to be either 8-bit and later
  76           determined by reading ONFI params.
  77           Above config is useful when NAND device's bus-width information cannot
  78           be determined from on-chip ONFI params, like in following scenarios:
  79           - SPL boot does not support reading of ONFI parameters. This is done to
  80             keep SPL code foot-print small.
  81           - In current U-Boot flow using nand_init(), driver initialization
  82             happens in board_nand_init() which is called before any device probe
  83             (nand_scan_ident + nand_scan_tail), thus device's ONFI parameters are
  84             not available while configuring controller. So a static CONFIG_NAND_xx
  85             is needed to know the device's bus-width in advance.
  86
  87 if SPL
  88
  89 config SPL_NAND_DENALI
  90         bool "Support Denali NAND controller for SPL"
  91         help
  92           This is a small implementation of the Denali NAND controller
  93           for use on SPL.
  94
  95 config SPL_NAND_SUNXI
  96         bool "Support for NAND on Allwinner SoCs in SPL"
  97         depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
  98         select SYS_NAND_SELF_INIT
  99         ---help---
 100         Enable support for NAND. This option allows SPL to read from
 101         sunxi NAND using DMA transfers.
 102
 103 config NAND_SUNXI_SPL_SYNDROME_PARTITIONS_END
 104         hex "Size of syndrome partitions in sunxi NAND"
 105         default 0x400000
 106         depends on SPL_NAND_SUNXI
 107         ---help---
 108         End address for boot partitions on NAND. Those partitions have a
 109         different random seed that has to match the sunxi BROM setting.
 110
 111 endif
 112
 113 endmenu