drivers/mtd/nand/Kconfig

   1 # drivers/mtd/nand/Kconfig
   2 # $Id: Kconfig,v 1.35 2005/11/07 11:14:30 gleixner Exp $
   3
   4 menu "NAND Flash Device Drivers"
   5         depends on MTD!=n
   6
   7 config MTD_NAND
   8         tristate "NAND Device Support"
   9         depends on MTD
  10         select MTD_NAND_IDS
  11         help
  12           This enables support for accessing all type of NAND flash
  13           devices. For further information see
  14           <http://www.linux-mtd.infradead.org/tech/nand.html>.
  15
  16 config MTD_NAND_VERIFY_WRITE
  17         bool "Verify NAND page writes"
  18         depends on MTD_NAND
  19         help
  20           This adds an extra check when data is written to the flash. The
  21           NAND flash device internally checks only bits transitioning
  22           from 1 to 0. There is a rare possibility that even though the
  23           device thinks the write was successful, a bit could have been
  24           flipped accidentaly due to device wear or something else.
  25
  26 config MTD_NAND_ECC_SMC
  27         bool "NAND ECC Smart Media byte order"
  28         depends on MTD_NAND
  29         default n
  30         help
  31           Software ECC according to the Smart Media Specification.
  32           The original Linux implementation had byte 0 and 1 swapped.
  33
  34 config MTD_NAND_AUTCPU12
  35         tristate "SmartMediaCard on autronix autcpu12 board"
  36         depends on MTD_NAND && ARCH_AUTCPU12
  37         help
  38           This enables the driver for the autronix autcpu12 board to
  39           access the SmartMediaCard.
  40
  41 config MTD_NAND_EDB7312
  42         tristate "Support for Cirrus Logic EBD7312 evaluation board"
  43         depends on MTD_NAND && ARCH_EDB7312
  44         help
  45           This enables the driver for the Cirrus Logic EBD7312 evaluation
  46           board to access the onboard NAND Flash.
  47
  48 config MTD_NAND_H1900
  49         tristate "iPAQ H1900 flash"
  50         depends on MTD_NAND && ARCH_PXA && MTD_PARTITIONS
  51         help
  52           This enables the driver for the iPAQ h1900 flash.
  53
  54 config MTD_NAND_SPIA
  55         tristate "NAND Flash device on SPIA board"
  56         depends on ARCH_P720T && MTD_NAND
  57         help
  58           If you had to ask, you don't have one. Say 'N'.
  59
  60 config MTD_NAND_AMS_DELTA
  61         tristate "NAND Flash device on Amstrad E3"
  62         depends on MACH_AMS_DELTA && MTD_NAND
  63         help
  64           Support for NAND flash on Amstrad E3 (Delta).
  65
  66 config MTD_NAND_TOTO
  67         tristate "NAND Flash device on TOTO board"
  68         depends on ARCH_OMAP && MTD_NAND && BROKEN
  69         help
  70           Support for NAND flash on Texas Instruments Toto platform.
  71
  72 config MTD_NAND_TS7250
  73         tristate "NAND Flash device on TS-7250 board"
  74         depends on MACH_TS72XX && MTD_NAND
  75         help
  76           Support for NAND flash on Technologic Systems TS-7250 platform.
  77
  78 config MTD_NAND_IDS
  79         tristate
  80
  81 config MTD_NAND_AU1550
  82         tristate "Au1550/1200 NAND support"
  83         depends on (SOC_AU1200 || SOC_AU1550) && MTD_NAND
  84         help
  85           This enables the driver for the NAND flash controller on the
  86           AMD/Alchemy 1550 SOC.
  87
  88 config MTD_NAND_RTC_FROM4
  89         tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
  90         depends on MTD_NAND && SH_SOLUTION_ENGINE
  91         select REED_SOLOMON
  92         select REED_SOLOMON_DEC8
  93         help
  94           This enables the driver for the Renesas Technology AG-AND
  95           flash interface board (FROM_BOARD4)
  96
  97 config MTD_NAND_PPCHAMELEONEVB
  98         tristate "NAND Flash device on PPChameleonEVB board"
  99         depends on PPCHAMELEONEVB && MTD_NAND && BROKEN
 100         help
 101           This enables the NAND flash driver on the PPChameleon EVB Board.
 102
 103 config MTD_NAND_S3C2410
 104         tristate "NAND Flash support for S3C2410/S3C2440 SoC"
 105         depends on ARCH_S3C2410 && MTD_NAND
 106         help
 107           This enables the NAND flash controller on the S3C2410 and S3C2440
 108           SoCs
 109
 110           No board specific support is done by this driver, each board
 111           must advertise a platform_device for the driver to attach.
 112
 113 config MTD_NAND_S3C2410_DEBUG
 114         bool "S3C2410 NAND driver debug"
 115         depends on MTD_NAND_S3C2410
 116         help
 117           Enable debugging of the S3C2410 NAND driver
 118
 119 config MTD_NAND_S3C2410_HWECC
 120         bool "S3C2410 NAND Hardware ECC"
 121         depends on MTD_NAND_S3C2410
 122         help
 123           Enable the use of the S3C2410's internal ECC generator when
 124           using NAND. Early versions of the chip have had problems with
 125           incorrect ECC generation, and if using these, the default of
 126           software ECC is preferable.
 127
 128           If you lay down a device with the hardware ECC, then you will
 129           currently not be able to switch to software, as there is no
 130           implementation for ECC method used by the S3C2410
 131
 132 config MTD_NAND_NDFC
 133         tristate "NDFC NanD Flash Controller"
 134         depends on MTD_NAND && 44x
 135         help
 136          NDFC Nand Flash Controllers are integrated in EP44x SoCs
 137
 138 config MTD_NAND_S3C2410_CLKSTOP
 139         bool "S3C2410 NAND IDLE clock stop"
 140         depends on MTD_NAND_S3C2410
 141         default n
 142         help
 143           Stop the clock to the NAND controller when there is no chip
 144           selected to save power. This will mean there is a small delay
 145           when the is NAND chip selected or released, but will save
 146           approximately 5mA of power when there is nothing happening.
 147
 148 config MTD_NAND_DISKONCHIP
 149         tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
 150         depends on MTD_NAND && EXPERIMENTAL
 151         select REED_SOLOMON
 152         select REED_SOLOMON_DEC16
 153         help
 154           This is a reimplementation of M-Systems DiskOnChip 2000,
 155           Millennium and Millennium Plus as a standard NAND device driver,
 156           as opposed to the earlier self-contained MTD device drivers.
 157           This should enable, among other things, proper JFFS2 operation on
 158           these devices.
 159
 160 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
 161         bool "Advanced detection options for DiskOnChip"
 162         depends on MTD_NAND_DISKONCHIP
 163         help
 164           This option allows you to specify nonstandard address at which to
 165           probe for a DiskOnChip, or to change the detection options.  You
 166           are unlikely to need any of this unless you are using LinuxBIOS.
 167           Say 'N'.
 168
 169 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
 170         hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
 171         depends on MTD_NAND_DISKONCHIP
 172         default "0"
 173         ---help---
 174         By default, the probe for DiskOnChip devices will look for a
 175         DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
 176         This option allows you to specify a single address at which to probe
 177         for the device, which is useful if you have other devices in that
 178         range which get upset when they are probed.
 179
 180         (Note that on PowerPC, the normal probe will only check at
 181         0xE4000000.)
 182
 183         Normally, you should leave this set to zero, to allow the probe at
 184         the normal addresses.
 185
 186 config MTD_NAND_DISKONCHIP_PROBE_HIGH
 187         bool "Probe high addresses"
 188         depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
 189         help
 190           By default, the probe for DiskOnChip devices will look for a
 191           DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
 192           This option changes to make it probe between 0xFFFC8000 and
 193           0xFFFEE000.  Unless you are using LinuxBIOS, this is unlikely to be
 194           useful to you.  Say 'N'.
 195
 196 config MTD_NAND_DISKONCHIP_BBTWRITE
 197         bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
 198         depends on MTD_NAND_DISKONCHIP
 199         help
 200           On DiskOnChip devices shipped with the INFTL filesystem (Millennium
 201           and 2000 TSOP/Alon), Linux reserves some space at the end of the
 202           device for the Bad Block Table (BBT).  If you have existing INFTL
 203           data on your device (created by non-Linux tools such as M-Systems'
 204           DOS drivers), your data might overlap the area Linux wants to use for
 205           the BBT.  If this is a concern for you, leave this option disabled and
 206           Linux will not write BBT data into this area.
 207           The downside of leaving this option disabled is that if bad blocks
 208           are detected by Linux, they will not be recorded in the BBT, which
 209           could cause future problems.
 210           Once you enable this option, new filesystems (INFTL or others, created
 211           in Linux or other operating systems) will not use the reserved area.
 212           The only reason not to enable this option is to prevent damage to
 213           preexisting filesystems.
 214           Even if you leave this disabled, you can enable BBT writes at module
 215           load time (assuming you build diskonchip as a module) with the module
 216           parameter "inftl_bbt_write=1".
 217
 218 config MTD_NAND_SHARPSL
 219         tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
 220         depends on MTD_NAND && ARCH_PXA
 221
 222 config MTD_NAND_CS553X
 223         tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
 224         depends on MTD_NAND && X86_32 && (X86_PC || X86_GENERICARCH)
 225         help
 226           The CS553x companion chips for the AMD Geode processor
 227           include NAND flash controllers with built-in hardware ECC
 228           capabilities; enabling this option will allow you to use
 229           these. The driver will check the MSRs to verify that the
 230           controller is enabled for NAND, and currently requires that
 231           the controller be in MMIO mode.
 232
 233           If you say "m", the module will be called "cs553x_nand.ko".
 234
 235 config MTD_NAND_NANDSIM
 236         tristate "Support for NAND Flash Simulator"
 237         depends on MTD_NAND && MTD_PARTITIONS
 238         help
 239           The simulator may simulate various NAND flash chips for the
 240           MTD nand layer.
 241
 242 endmenu