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 config NAND_SUNXI
  67         bool "Support for NAND on Allwinner SoCs"
  68         depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
  69         select SYS_NAND_SELF_INIT
  70         select SYS_NAND_U_BOOT_LOCATIONS
  71         ---help---
  72         Enable support for NAND. This option enables the standard and
  73         SPL drivers.
  74         The SPL driver only supports reading from the NAND using DMA
  75         transfers.
  76
  77 if NAND_SUNXI
  78
  79 config NAND_SUNXI_SPL_ECC_STRENGTH
  80         int "Allwinner NAND SPL ECC Strength"
  81         default 64
  82
  83 config NAND_SUNXI_SPL_ECC_SIZE
  84         int "Allwinner NAND SPL ECC Step Size"
  85         default 1024
  86
  87 config NAND_SUNXI_SPL_USABLE_PAGE_SIZE
  88         int "Allwinner NAND SPL Usable Page Size"
  89         default 1024
  90
  91 endif
  92
  93 config NAND_ARASAN
  94         bool "Configure Arasan Nand"
  95         help
  96           This enables Nand driver support for Arasan nand flash
  97           controller. This uses the hardware ECC for read and
  98           write operations.
  99
 100 config NAND_MXS
 101         bool "MXS NAND support"
 102         depends on MX6 || MX7
 103         help
 104           This enables NAND driver for the NAND flash controller on the
 105           MXS processors.
 106
 107 config NAND_ZYNQ
 108         bool "Support for Zynq Nand controller"
 109         select SYS_NAND_SELF_INIT
 110         help
 111           This enables Nand driver support for Nand flash controller
 112           found on Zynq SoC.
 113
 114 comment "Generic NAND options"
 115
 116 # Enhance depends when converting drivers to Kconfig which use this config
 117 # option (mxc_nand, ndfc, omap_gpmc).
 118 config SYS_NAND_BUSWIDTH_16BIT
 119         bool "Use 16-bit NAND interface"
 120         depends on NAND_VF610_NFC
 121         help
 122           Indicates that NAND device has 16-bit wide data-bus. In absence of this
 123           config, bus-width of NAND device is assumed to be either 8-bit and later
 124           determined by reading ONFI params.
 125           Above config is useful when NAND device's bus-width information cannot
 126           be determined from on-chip ONFI params, like in following scenarios:
 127           - SPL boot does not support reading of ONFI parameters. This is done to
 128             keep SPL code foot-print small.
 129           - In current U-Boot flow using nand_init(), driver initialization
 130             happens in board_nand_init() which is called before any device probe
 131             (nand_scan_ident + nand_scan_tail), thus device's ONFI parameters are
 132             not available while configuring controller. So a static CONFIG_NAND_xx
 133             is needed to know the device's bus-width in advance.
 134
 135 if SPL
 136
 137 config SYS_NAND_U_BOOT_LOCATIONS
 138         bool "Define U-boot binaries locations in NAND"
 139         help
 140         Enable CONFIG_SYS_NAND_U_BOOT_OFFS though Kconfig.
 141         This option should not be enabled when compiling U-boot for boards
 142         defining CONFIG_SYS_NAND_U_BOOT_OFFS in their include/configs/<board>.h
 143         file.
 144
 145 config SYS_NAND_U_BOOT_OFFS
 146         hex "Location in NAND to read U-Boot from"
 147         default 0x800000 if NAND_SUNXI
 148         depends on SYS_NAND_U_BOOT_LOCATIONS
 149         help
 150         Set the offset from the start of the nand where u-boot should be
 151         loaded from.
 152
 153 config SYS_NAND_U_BOOT_OFFS_REDUND
 154         hex "Location in NAND to read U-Boot from"
 155         default SYS_NAND_U_BOOT_OFFS
 156         depends on SYS_NAND_U_BOOT_LOCATIONS
 157         help
 158         Set the offset from the start of the nand where the redundant u-boot
 159         should be loaded from.
 160
 161 config SPL_NAND_DENALI
 162         bool "Support Denali NAND controller for SPL"
 163         help
 164           This is a small implementation of the Denali NAND controller
 165           for use on SPL.
 166
 167 endif
 168
 169 endmenu