drivers/mtd/nand/Kconfig

   1 # drivers/mtd/nand/Kconfig
   2
   3 menuconfig MTD_NAND
   4         tristate "NAND Device Support"
   5         depends on MTD
   6         select MTD_NAND_IDS
   7         help
   8           This enables support for accessing all type of NAND flash
   9           devices. For further information see
  10           <http://www.linux-mtd.infradead.org/doc/nand.html>.
  11
  12 if MTD_NAND
  13
  14 config MTD_NAND_VERIFY_WRITE
  15         bool "Verify NAND page writes"
  16         help
  17           This adds an extra check when data is written to the flash. The
  18           NAND flash device internally checks only bits transitioning
  19           from 1 to 0. There is a rare possibility that even though the
  20           device thinks the write was successful, a bit could have been
  21           flipped accidentally due to device wear or something else.
  22
  23 config MTD_NAND_ECC_SMC
  24         bool "NAND ECC Smart Media byte order"
  25         default n
  26         help
  27           Software ECC according to the Smart Media Specification.
  28           The original Linux implementation had byte 0 and 1 swapped.
  29
  30 config MTD_NAND_MUSEUM_IDS
  31         bool "Enable chip ids for obsolete ancient NAND devices"
  32         depends on MTD_NAND
  33         default n
  34         help
  35           Enable this option only when your board has first generation
  36           NAND chips (page size 256 byte, erase size 4-8KiB). The IDs
  37           of these chips were reused by later, larger chips.
  38
  39 config MTD_NAND_AUTCPU12
  40         tristate "SmartMediaCard on autronix autcpu12 board"
  41         depends on ARCH_AUTCPU12
  42         help
  43           This enables the driver for the autronix autcpu12 board to
  44           access the SmartMediaCard.
  45
  46 config MTD_NAND_EDB7312
  47         tristate "Support for Cirrus Logic EBD7312 evaluation board"
  48         depends on ARCH_EDB7312
  49         help
  50           This enables the driver for the Cirrus Logic EBD7312 evaluation
  51           board to access the onboard NAND Flash.
  52
  53 config MTD_NAND_H1900
  54         tristate "iPAQ H1900 flash"
  55         depends on ARCH_PXA && MTD_PARTITIONS
  56         help
  57           This enables the driver for the iPAQ h1900 flash.
  58
  59 config MTD_NAND_SPIA
  60         tristate "NAND Flash device on SPIA board"
  61         depends on ARCH_P720T
  62         help
  63           If you had to ask, you don't have one. Say 'N'.
  64
  65 config MTD_NAND_AMS_DELTA
  66         tristate "NAND Flash device on Amstrad E3"
  67         depends on MACH_AMS_DELTA
  68         help
  69           Support for NAND flash on Amstrad E3 (Delta).
  70
  71 config MTD_NAND_TOTO
  72         tristate "NAND Flash device on TOTO board"
  73         depends on ARCH_OMAP && BROKEN
  74         help
  75           Support for NAND flash on Texas Instruments Toto platform.
  76
  77 config MTD_NAND_TS7250
  78         tristate "NAND Flash device on TS-7250 board"
  79         depends on MACH_TS72XX
  80         help
  81           Support for NAND flash on Technologic Systems TS-7250 platform.
  82
  83 config MTD_NAND_IDS
  84         tristate
  85
  86 config MTD_NAND_AU1550
  87         tristate "Au1550/1200 NAND support"
  88         depends on SOC_AU1200 || SOC_AU1550
  89         help
  90           This enables the driver for the NAND flash controller on the
  91           AMD/Alchemy 1550 SOC.
  92
  93 config MTD_NAND_BF5XX
  94         tristate "Blackfin on-chip NAND Flash Controller driver"
  95         depends on (BF54x || BF52x) && MTD_NAND
  96         help
  97           This enables the Blackfin on-chip NAND flash controller
  98
  99           No board specific support is done by this driver, each board
 100           must advertise a platform_device for the driver to attach.
 101
 102           This driver can also be built as a module. If so, the module
 103           will be called bf5xx-nand.
 104
 105 config MTD_NAND_BF5XX_HWECC
 106         bool "BF5XX NAND Hardware ECC"
 107         depends on MTD_NAND_BF5XX
 108         help
 109           Enable the use of the BF5XX's internal ECC generator when
 110           using NAND.
 111
 112 config MTD_NAND_RTC_FROM4
 113         tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
 114         depends on SH_SOLUTION_ENGINE
 115         select REED_SOLOMON
 116         select REED_SOLOMON_DEC8
 117         select BITREVERSE
 118         help
 119           This enables the driver for the Renesas Technology AG-AND
 120           flash interface board (FROM_BOARD4)
 121
 122 config MTD_NAND_PPCHAMELEONEVB
 123         tristate "NAND Flash device on PPChameleonEVB board"
 124         depends on PPCHAMELEONEVB && BROKEN
 125         help
 126           This enables the NAND flash driver on the PPChameleon EVB Board.
 127
 128 config MTD_NAND_S3C2410
 129         tristate "NAND Flash support for S3C2410/S3C2440 SoC"
 130         depends on ARCH_S3C2410
 131         help
 132           This enables the NAND flash controller on the S3C2410 and S3C2440
 133           SoCs
 134
 135           No board specific support is done by this driver, each board
 136           must advertise a platform_device for the driver to attach.
 137
 138 config MTD_NAND_S3C2410_DEBUG
 139         bool "S3C2410 NAND driver debug"
 140         depends on MTD_NAND_S3C2410
 141         help
 142           Enable debugging of the S3C2410 NAND driver
 143
 144 config MTD_NAND_S3C2410_HWECC
 145         bool "S3C2410 NAND Hardware ECC"
 146         depends on MTD_NAND_S3C2410
 147         help
 148           Enable the use of the S3C2410's internal ECC generator when
 149           using NAND. Early versions of the chip have had problems with
 150           incorrect ECC generation, and if using these, the default of
 151           software ECC is preferable.
 152
 153 config MTD_NAND_NDFC
 154         tristate "NDFC NanD Flash Controller"
 155         depends on 4xx && !PPC_MERGE
 156         select MTD_NAND_ECC_SMC
 157         help
 158          NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
 159
 160 config MTD_NAND_S3C2410_CLKSTOP
 161         bool "S3C2410 NAND IDLE clock stop"
 162         depends on MTD_NAND_S3C2410
 163         default n
 164         help
 165           Stop the clock to the NAND controller when there is no chip
 166           selected to save power. This will mean there is a small delay
 167           when the is NAND chip selected or released, but will save
 168           approximately 5mA of power when there is nothing happening.
 169
 170 config MTD_NAND_DISKONCHIP
 171         tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
 172         depends on EXPERIMENTAL
 173         select REED_SOLOMON
 174         select REED_SOLOMON_DEC16
 175         help
 176           This is a reimplementation of M-Systems DiskOnChip 2000,
 177           Millennium and Millennium Plus as a standard NAND device driver,
 178           as opposed to the earlier self-contained MTD device drivers.
 179           This should enable, among other things, proper JFFS2 operation on
 180           these devices.
 181
 182 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
 183         bool "Advanced detection options for DiskOnChip"
 184         depends on MTD_NAND_DISKONCHIP
 185         help
 186           This option allows you to specify nonstandard address at which to
 187           probe for a DiskOnChip, or to change the detection options.  You
 188           are unlikely to need any of this unless you are using LinuxBIOS.
 189           Say 'N'.
 190
 191 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
 192         hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
 193         depends on MTD_NAND_DISKONCHIP
 194         default "0"
 195         ---help---
 196         By default, the probe for DiskOnChip devices will look for a
 197         DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
 198         This option allows you to specify a single address at which to probe
 199         for the device, which is useful if you have other devices in that
 200         range which get upset when they are probed.
 201
 202         (Note that on PowerPC, the normal probe will only check at
 203         0xE4000000.)
 204
 205         Normally, you should leave this set to zero, to allow the probe at
 206         the normal addresses.
 207
 208 config MTD_NAND_DISKONCHIP_PROBE_HIGH
 209         bool "Probe high addresses"
 210         depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
 211         help
 212           By default, the probe for DiskOnChip devices will look for a
 213           DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
 214           This option changes to make it probe between 0xFFFC8000 and
 215           0xFFFEE000.  Unless you are using LinuxBIOS, this is unlikely to be
 216           useful to you.  Say 'N'.
 217
 218 config MTD_NAND_DISKONCHIP_BBTWRITE
 219         bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
 220         depends on MTD_NAND_DISKONCHIP
 221         help
 222           On DiskOnChip devices shipped with the INFTL filesystem (Millennium
 223           and 2000 TSOP/Alon), Linux reserves some space at the end of the
 224           device for the Bad Block Table (BBT).  If you have existing INFTL
 225           data on your device (created by non-Linux tools such as M-Systems'
 226           DOS drivers), your data might overlap the area Linux wants to use for
 227           the BBT.  If this is a concern for you, leave this option disabled and
 228           Linux will not write BBT data into this area.
 229           The downside of leaving this option disabled is that if bad blocks
 230           are detected by Linux, they will not be recorded in the BBT, which
 231           could cause future problems.
 232           Once you enable this option, new filesystems (INFTL or others, created
 233           in Linux or other operating systems) will not use the reserved area.
 234           The only reason not to enable this option is to prevent damage to
 235           preexisting filesystems.
 236           Even if you leave this disabled, you can enable BBT writes at module
 237           load time (assuming you build diskonchip as a module) with the module
 238           parameter "inftl_bbt_write=1".
 239
 240 config MTD_NAND_SHARPSL
 241         tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
 242         depends on ARCH_PXA
 243
 244 config MTD_NAND_BASLER_EXCITE
 245         tristate  "Support for NAND Flash on Basler eXcite"
 246         depends on BASLER_EXCITE
 247         help
 248           This enables the driver for the NAND flash device found on the
 249           Basler eXcite Smart Camera. If built as a module, the driver
 250           will be named "excite_nandflash.ko".
 251
 252 config MTD_NAND_CAFE
 253         tristate "NAND support for OLPC CAFÉ chip"
 254         depends on PCI
 255         select REED_SOLOMON
 256         select REED_SOLOMON_DEC16
 257         help
 258           Use NAND flash attached to the CAFÉ chip designed for the OLPC
 259           laptop.
 260
 261 config MTD_NAND_CS553X
 262         tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
 263         depends on X86_32 && (X86_PC || X86_GENERICARCH)
 264         help
 265           The CS553x companion chips for the AMD Geode processor
 266           include NAND flash controllers with built-in hardware ECC
 267           capabilities; enabling this option will allow you to use
 268           these. The driver will check the MSRs to verify that the
 269           controller is enabled for NAND, and currently requires that
 270           the controller be in MMIO mode.
 271
 272           If you say "m", the module will be called "cs553x_nand.ko".
 273
 274 config MTD_NAND_ATMEL
 275         bool "Support for NAND Flash / SmartMedia on AT91 and AVR32"
 276         depends on ARCH_AT91 || AVR32
 277         help
 278           Enables support for NAND Flash / Smart Media Card interface
 279           on Atmel AT91 and AVR32 processors.
 280 choice
 281         prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
 282         depends on MTD_NAND_ATMEL
 283
 284 config MTD_NAND_ATMEL_ECC_HW
 285         bool "Hardware ECC"
 286         depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32
 287         help
 288           Use hardware ECC instead of software ECC when the chip
 289           supports it.
 290
 291           The hardware ECC controller is capable of single bit error
 292           correction and 2-bit random detection per page.
 293
 294           NB : hardware and software ECC schemes are incompatible.
 295           If you switch from one to another, you'll have to erase your
 296           mtd partition.
 297
 298           If unsure, say Y
 299
 300 config MTD_NAND_ATMEL_ECC_SOFT
 301         bool "Software ECC"
 302         help
 303           Use software ECC.
 304
 305           NB : hardware and software ECC schemes are incompatible.
 306           If you switch from one to another, you'll have to erase your
 307           mtd partition.
 308
 309 config MTD_NAND_ATMEL_ECC_NONE
 310         bool "No ECC (testing only, DANGEROUS)"
 311         depends on DEBUG_KERNEL
 312         help
 313           No ECC will be used.
 314           It's not a good idea and it should be reserved for testing
 315           purpose only.
 316
 317           If unsure, say N
 318
 319           endchoice
 320
 321 endchoice
 322
 323 config MTD_NAND_PXA3xx
 324         bool "Support for NAND flash devices on PXA3xx"
 325         depends on MTD_NAND && PXA3xx
 326         help
 327           This enables the driver for the NAND flash device found on
 328           PXA3xx processors
 329
 330 config MTD_NAND_CM_X270
 331         tristate "Support for NAND Flash on CM-X270 modules"
 332         depends on MTD_NAND && MACH_ARMCORE
 333
 334 config MTD_NAND_PASEMI
 335         tristate "NAND support for PA Semi PWRficient"
 336         depends on MTD_NAND && PPC_PASEMI
 337         help
 338           Enables support for NAND Flash interface on PA Semi PWRficient
 339           based boards
 340
 341 config MTD_NAND_NANDSIM
 342         tristate "Support for NAND Flash Simulator"
 343         depends on MTD_PARTITIONS
 344         help
 345           The simulator may simulate various NAND flash chips for the
 346           MTD nand layer.
 347
 348 config MTD_NAND_PLATFORM
 349         tristate "Support for generic platform NAND driver"
 350         depends on MTD_NAND
 351         help
 352           This implements a generic NAND driver for on-SOC platform
 353           devices. You will need to provide platform-specific functions
 354           via platform_data.
 355
 356 config MTD_ALAUDA
 357         tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
 358         depends on MTD_NAND && USB
 359         help
 360           These two (and possibly other) Alauda-based cardreaders for
 361           SmartMedia and xD allow raw flash access.
 362
 363 config MTD_NAND_ORION
 364         tristate "NAND Flash support for Marvell Orion SoC"
 365         depends on PLAT_ORION && MTD_NAND
 366         help
 367           This enables the NAND flash controller on Orion machines.
 368
 369           No board specific support is done by this driver, each board
 370           must advertise a platform_device for the driver to attach.
 371
 372 config MTD_NAND_FSL_ELBC
 373         tristate "NAND support for Freescale eLBC controllers"
 374         depends on MTD_NAND && PPC_OF
 375         help
 376           Various Freescale chips, including the 8313, include a NAND Flash
 377           Controller Module with built-in hardware ECC capabilities.
 378           Enabling this option will enable you to use this to control
 379           external NAND devices.
 380
 381 config MTD_NAND_FSL_UPM
 382         tristate "Support for NAND on Freescale UPM"
 383         depends on MTD_NAND && OF_GPIO && (PPC_83xx || PPC_85xx)
 384         select FSL_LBC
 385         help
 386           Enables support for NAND Flash chips wired onto Freescale PowerPC
 387           processor localbus with User-Programmable Machine support.
 388
 389 endif # MTD_NAND