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         ---help---
  71         Enable support for NAND. This option enables the standard and
  72         SPL drivers.
  73         The SPL driver only supports reading from the NAND using DMA
  74         transfers.
  75
  76 config NAND_ARASAN
  77         bool "Configure Arasan Nand"
  78         help
  79           This enables Nand driver support for Arasan nand flash
  80           controller. This uses the hardware ECC for read and
  81           write operations.
  82
  83 config NAND_MXS
  84         bool "MXS NAND support"
  85         depends on MX6 || MX7
  86         help
  87           This enables NAND driver for the NAND flash controller on the
  88           MXS processors.
  89
  90 config NAND_ZYNQ
  91         bool "Support for Zynq Nand controller"
  92         select SYS_NAND_SELF_INIT
  93         help
  94           This enables Nand driver support for Nand flash controller
  95           found on Zynq SoC.
  96
  97 comment "Generic NAND options"
  98
  99 # Enhance depends when converting drivers to Kconfig which use this config
 100 # option (mxc_nand, ndfc, omap_gpmc).
 101 config SYS_NAND_BUSWIDTH_16BIT
 102         bool "Use 16-bit NAND interface"
 103         depends on NAND_VF610_NFC
 104         help
 105           Indicates that NAND device has 16-bit wide data-bus. In absence of this
 106           config, bus-width of NAND device is assumed to be either 8-bit and later
 107           determined by reading ONFI params.
 108           Above config is useful when NAND device's bus-width information cannot
 109           be determined from on-chip ONFI params, like in following scenarios:
 110           - SPL boot does not support reading of ONFI parameters. This is done to
 111             keep SPL code foot-print small.
 112           - In current U-Boot flow using nand_init(), driver initialization
 113             happens in board_nand_init() which is called before any device probe
 114             (nand_scan_ident + nand_scan_tail), thus device's ONFI parameters are
 115             not available while configuring controller. So a static CONFIG_NAND_xx
 116             is needed to know the device's bus-width in advance.
 117
 118 if SPL
 119
 120 config SYS_NAND_U_BOOT_LOCATIONS
 121         bool "Define U-boot binaries locations in NAND"
 122         help
 123         Enable CONFIG_SYS_NAND_U_BOOT_OFFS though Kconfig.
 124         This option should not be enabled when compiling U-boot for boards
 125         defining CONFIG_SYS_NAND_U_BOOT_OFFS in their include/configs/<board>.h
 126         file.
 127
 128 config SYS_NAND_U_BOOT_OFFS
 129         hex "Location in NAND to read U-Boot from"
 130         default 0x8000 if NAND_SUNXI
 131         depends on SYS_NAND_U_BOOT_LOCATIONS
 132         help
 133         Set the offset from the start of the nand where u-boot should be
 134         loaded from.
 135
 136 config SYS_NAND_U_BOOT_OFFS_REDUND
 137         hex "Location in NAND to read U-Boot from"
 138         default SYS_NAND_U_BOOT_OFFS
 139         depends on SYS_NAND_U_BOOT_LOCATIONS
 140         help
 141         Set the offset from the start of the nand where the redundant u-boot
 142         should be loaded from.
 143
 144 config SPL_NAND_DENALI
 145         bool "Support Denali NAND controller for SPL"
 146         help
 147           This is a small implementation of the Denali NAND controller
 148           for use on SPL.
 149
 150 endif
 151
 152 endmenu