drivers/mtd/nand/Kconfig

   1 menuconfig MTD_NAND
   2         tristate "NAND Device Support"
   3         depends on MTD
   4         select MTD_NAND_IDS
   5         select MTD_NAND_ECC
   6         help
   7           This enables support for accessing all type of NAND flash
   8           devices. For further information see
   9           <http://www.linux-mtd.infradead.org/doc/nand.html>.
  10
  11 config MTD_NAND_ECC
  12         tristate
  13
  14 config MTD_NAND_ECC_SMC
  15         bool "NAND ECC Smart Media byte order"
  16         depends on MTD_NAND_ECC
  17         default n
  18         help
  19           Software ECC according to the Smart Media Specification.
  20           The original Linux implementation had byte 0 and 1 swapped.
  21
  22 if MTD_NAND
  23
  24 config MTD_NAND_VERIFY_WRITE
  25         bool "Verify NAND page writes"
  26         help
  27           This adds an extra check when data is written to the flash. The
  28           NAND flash device internally checks only bits transitioning
  29           from 1 to 0. There is a rare possibility that even though the
  30           device thinks the write was successful, a bit could have been
  31           flipped accidentally due to device wear or something else.
  32
  33 config MTD_SM_COMMON
  34         tristate
  35         default n
  36
  37 config MTD_NAND_MUSEUM_IDS
  38         bool "Enable chip ids for obsolete ancient NAND devices"
  39         depends on MTD_NAND
  40         default n
  41         help
  42           Enable this option only when your board has first generation
  43           NAND chips (page size 256 byte, erase size 4-8KiB). The IDs
  44           of these chips were reused by later, larger chips.
  45
  46 config MTD_NAND_AUTCPU12
  47         tristate "SmartMediaCard on autronix autcpu12 board"
  48         depends on ARCH_AUTCPU12
  49         help
  50           This enables the driver for the autronix autcpu12 board to
  51           access the SmartMediaCard.
  52
  53 config MTD_NAND_DENALI
  54        depends on PCI
  55         tristate "Support Denali NAND controller on Intel Moorestown"
  56         help
  57           Enable the driver for NAND flash on Intel Moorestown, using the
  58           Denali NAND controller core.
  59
  60 config MTD_NAND_DENALI_SCRATCH_REG_ADDR
  61         hex "Denali NAND size scratch register address"
  62         default "0xFF108018"
  63         help
  64           Some platforms place the NAND chip size in a scratch register
  65           because (some versions of) the driver aren't able to automatically
  66           determine the size of certain chips. Set the address of the
  67           scratch register here to enable this feature. On Intel Moorestown
  68           boards, the scratch register is at 0xFF108018.
  69
  70 config MTD_NAND_EDB7312
  71         tristate "Support for Cirrus Logic EBD7312 evaluation board"
  72         depends on ARCH_EDB7312
  73         help
  74           This enables the driver for the Cirrus Logic EBD7312 evaluation
  75           board to access the onboard NAND Flash.
  76
  77 config MTD_NAND_H1900
  78         tristate "iPAQ H1900 flash"
  79         depends on ARCH_PXA && MTD_PARTITIONS
  80         help
  81           This enables the driver for the iPAQ h1900 flash.
  82
  83 config MTD_NAND_GPIO
  84         tristate "GPIO NAND Flash driver"
  85         depends on GENERIC_GPIO && ARM
  86         help
  87           This enables a GPIO based NAND flash driver.
  88
  89 config MTD_NAND_SPIA
  90         tristate "NAND Flash device on SPIA board"
  91         depends on ARCH_P720T
  92         help
  93           If you had to ask, you don't have one. Say 'N'.
  94
  95 config MTD_NAND_AMS_DELTA
  96         tristate "NAND Flash device on Amstrad E3"
  97         depends on MACH_AMS_DELTA
  98         help
  99           Support for NAND flash on Amstrad E3 (Delta).
 100
 101 config MTD_NAND_OMAP2
 102         tristate "NAND Flash device on OMAP2 and OMAP3"
 103         depends on ARM && MTD_NAND && (ARCH_OMAP2 || ARCH_OMAP3)
 104         help
 105           Support for NAND flash on Texas Instruments OMAP2 and OMAP3 platforms.
 106
 107 config MTD_NAND_OMAP_PREFETCH
 108         bool "GPMC prefetch support for NAND Flash device"
 109         depends on MTD_NAND && MTD_NAND_OMAP2
 110         default y
 111         help
 112          The NAND device can be accessed for Read/Write using GPMC PREFETCH engine
 113          to improve the performance.
 114
 115 config MTD_NAND_OMAP_PREFETCH_DMA
 116         depends on MTD_NAND_OMAP_PREFETCH
 117         bool "DMA mode"
 118         default n
 119         help
 120          The GPMC PREFETCH engine can be configured eigther in MPU interrupt mode
 121          or in DMA interrupt mode.
 122          Say y for DMA mode or MPU mode will be used
 123
 124 config MTD_NAND_IDS
 125         tristate
 126
 127 config MTD_NAND_RICOH
 128         tristate "Ricoh xD card reader"
 129         default n
 130         depends on PCI
 131         select MTD_SM_COMMON
 132         help
 133           Enable support for Ricoh R5C852 xD card reader
 134           You also need to enable ether
 135           NAND SSFDC (SmartMedia) read only translation layer' or new
 136           expermental, readwrite
 137           'SmartMedia/xD new translation layer'
 138
 139 config MTD_NAND_AU1550
 140         tristate "Au1550/1200 NAND support"
 141         depends on SOC_AU1200 || SOC_AU1550
 142         help
 143           This enables the driver for the NAND flash controller on the
 144           AMD/Alchemy 1550 SOC.
 145
 146 config MTD_NAND_BF5XX
 147         tristate "Blackfin on-chip NAND Flash Controller driver"
 148         depends on (BF54x || BF52x) && MTD_NAND
 149         help
 150           This enables the Blackfin on-chip NAND flash controller
 151
 152           No board specific support is done by this driver, each board
 153           must advertise a platform_device for the driver to attach.
 154
 155           This driver can also be built as a module. If so, the module
 156           will be called bf5xx-nand.
 157
 158 config MTD_NAND_BF5XX_HWECC
 159         bool "BF5XX NAND Hardware ECC"
 160         default y
 161         depends on MTD_NAND_BF5XX
 162         help
 163           Enable the use of the BF5XX's internal ECC generator when
 164           using NAND.
 165
 166 config MTD_NAND_BF5XX_BOOTROM_ECC
 167         bool "Use Blackfin BootROM ECC Layout"
 168         default n
 169         depends on MTD_NAND_BF5XX_HWECC
 170         help
 171           If you wish to modify NAND pages and allow the Blackfin on-chip
 172           BootROM to boot from them, say Y here.  This is only necessary
 173           if you are booting U-Boot out of NAND and you wish to update
 174           U-Boot from Linux' userspace.  Otherwise, you should say N here.
 175
 176           If unsure, say N.
 177
 178 config MTD_NAND_RTC_FROM4
 179         tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
 180         depends on SH_SOLUTION_ENGINE
 181         select REED_SOLOMON
 182         select REED_SOLOMON_DEC8
 183         select BITREVERSE
 184         help
 185           This enables the driver for the Renesas Technology AG-AND
 186           flash interface board (FROM_BOARD4)
 187
 188 config MTD_NAND_PPCHAMELEONEVB
 189         tristate "NAND Flash device on PPChameleonEVB board"
 190         depends on PPCHAMELEONEVB && BROKEN
 191         help
 192           This enables the NAND flash driver on the PPChameleon EVB Board.
 193
 194 config MTD_NAND_S3C2410
 195         tristate "NAND Flash support for Samsung S3C SoCs"
 196         depends on ARCH_S3C2410 || ARCH_S3C64XX
 197         help
 198           This enables the NAND flash controller on the S3C24xx and S3C64xx
 199           SoCs
 200
 201           No board specific support is done by this driver, each board
 202           must advertise a platform_device for the driver to attach.
 203
 204 config MTD_NAND_S3C2410_DEBUG
 205         bool "Samsung S3C NAND driver debug"
 206         depends on MTD_NAND_S3C2410
 207         help
 208           Enable debugging of the S3C NAND driver
 209
 210 config MTD_NAND_S3C2410_HWECC
 211         bool "Samsung S3C NAND Hardware ECC"
 212         depends on MTD_NAND_S3C2410
 213         help
 214           Enable the use of the controller's internal ECC generator when
 215           using NAND. Early versions of the chips have had problems with
 216           incorrect ECC generation, and if using these, the default of
 217           software ECC is preferable.
 218
 219 config MTD_NAND_NDFC
 220         tristate "NDFC NanD Flash Controller"
 221         depends on 4xx
 222         select MTD_NAND_ECC_SMC
 223         help
 224          NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
 225
 226 config MTD_NAND_S3C2410_CLKSTOP
 227         bool "Samsung S3C NAND IDLE clock stop"
 228         depends on MTD_NAND_S3C2410
 229         default n
 230         help
 231           Stop the clock to the NAND controller when there is no chip
 232           selected to save power. This will mean there is a small delay
 233           when the is NAND chip selected or released, but will save
 234           approximately 5mA of power when there is nothing happening.
 235
 236 config MTD_NAND_BCM_UMI
 237         tristate "NAND Flash support for BCM Reference Boards"
 238         depends on ARCH_BCMRING && MTD_NAND
 239         help
 240           This enables the NAND flash controller on the BCM UMI block.
 241
 242           No board specfic support is done by this driver, each board
 243           must advertise a platform_device for the driver to attach.
 244
 245 config MTD_NAND_BCM_UMI_HWCS
 246         bool "BCM UMI NAND Hardware CS"
 247         depends on MTD_NAND_BCM_UMI
 248         help
 249           Enable the use of the BCM UMI block's internal CS using NAND.
 250           This should only be used if you know the external NAND CS can toggle.
 251
 252 config MTD_NAND_DISKONCHIP
 253         tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
 254         depends on EXPERIMENTAL
 255         select REED_SOLOMON
 256         select REED_SOLOMON_DEC16
 257         help
 258           This is a reimplementation of M-Systems DiskOnChip 2000,
 259           Millennium and Millennium Plus as a standard NAND device driver,
 260           as opposed to the earlier self-contained MTD device drivers.
 261           This should enable, among other things, proper JFFS2 operation on
 262           these devices.
 263
 264 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
 265         bool "Advanced detection options for DiskOnChip"
 266         depends on MTD_NAND_DISKONCHIP
 267         help
 268           This option allows you to specify nonstandard address at which to
 269           probe for a DiskOnChip, or to change the detection options.  You
 270           are unlikely to need any of this unless you are using LinuxBIOS.
 271           Say 'N'.
 272
 273 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
 274         hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
 275         depends on MTD_NAND_DISKONCHIP
 276         default "0"
 277         ---help---
 278         By default, the probe for DiskOnChip devices will look for a
 279         DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
 280         This option allows you to specify a single address at which to probe
 281         for the device, which is useful if you have other devices in that
 282         range which get upset when they are probed.
 283
 284         (Note that on PowerPC, the normal probe will only check at
 285         0xE4000000.)
 286
 287         Normally, you should leave this set to zero, to allow the probe at
 288         the normal addresses.
 289
 290 config MTD_NAND_DISKONCHIP_PROBE_HIGH
 291         bool "Probe high addresses"
 292         depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
 293         help
 294           By default, the probe for DiskOnChip devices will look for a
 295           DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
 296           This option changes to make it probe between 0xFFFC8000 and
 297           0xFFFEE000.  Unless you are using LinuxBIOS, this is unlikely to be
 298           useful to you.  Say 'N'.
 299
 300 config MTD_NAND_DISKONCHIP_BBTWRITE
 301         bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
 302         depends on MTD_NAND_DISKONCHIP
 303         help
 304           On DiskOnChip devices shipped with the INFTL filesystem (Millennium
 305           and 2000 TSOP/Alon), Linux reserves some space at the end of the
 306           device for the Bad Block Table (BBT).  If you have existing INFTL
 307           data on your device (created by non-Linux tools such as M-Systems'
 308           DOS drivers), your data might overlap the area Linux wants to use for
 309           the BBT.  If this is a concern for you, leave this option disabled and
 310           Linux will not write BBT data into this area.
 311           The downside of leaving this option disabled is that if bad blocks
 312           are detected by Linux, they will not be recorded in the BBT, which
 313           could cause future problems.
 314           Once you enable this option, new filesystems (INFTL or others, created
 315           in Linux or other operating systems) will not use the reserved area.
 316           The only reason not to enable this option is to prevent damage to
 317           preexisting filesystems.
 318           Even if you leave this disabled, you can enable BBT writes at module
 319           load time (assuming you build diskonchip as a module) with the module
 320           parameter "inftl_bbt_write=1".
 321
 322 config MTD_NAND_SHARPSL
 323         tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
 324         depends on ARCH_PXA
 325
 326 config MTD_NAND_CAFE
 327         tristate "NAND support for OLPC CAFÉ chip"
 328         depends on PCI
 329         select REED_SOLOMON
 330         select REED_SOLOMON_DEC16
 331         help
 332           Use NAND flash attached to the CAFÉ chip designed for the OLPC
 333           laptop.
 334
 335 config MTD_NAND_CS553X
 336         tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
 337         depends on X86_32
 338         help
 339           The CS553x companion chips for the AMD Geode processor
 340           include NAND flash controllers with built-in hardware ECC
 341           capabilities; enabling this option will allow you to use
 342           these. The driver will check the MSRs to verify that the
 343           controller is enabled for NAND, and currently requires that
 344           the controller be in MMIO mode.
 345
 346           If you say "m", the module will be called cs553x_nand.
 347
 348 config MTD_NAND_ATMEL
 349         tristate "Support for NAND Flash / SmartMedia on AT91 and AVR32"
 350         depends on ARCH_AT91 || AVR32
 351         help
 352           Enables support for NAND Flash / Smart Media Card interface
 353           on Atmel AT91 and AVR32 processors.
 354 choice
 355         prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
 356         depends on MTD_NAND_ATMEL
 357
 358 config MTD_NAND_ATMEL_ECC_HW
 359         bool "Hardware ECC"
 360         depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32
 361         help
 362           Use hardware ECC instead of software ECC when the chip
 363           supports it.
 364
 365           The hardware ECC controller is capable of single bit error
 366           correction and 2-bit random detection per page.
 367
 368           NB : hardware and software ECC schemes are incompatible.
 369           If you switch from one to another, you'll have to erase your
 370           mtd partition.
 371
 372           If unsure, say Y
 373
 374 config MTD_NAND_ATMEL_ECC_SOFT
 375         bool "Software ECC"
 376         help
 377           Use software ECC.
 378
 379           NB : hardware and software ECC schemes are incompatible.
 380           If you switch from one to another, you'll have to erase your
 381           mtd partition.
 382
 383 config MTD_NAND_ATMEL_ECC_NONE
 384         bool "No ECC (testing only, DANGEROUS)"
 385         depends on DEBUG_KERNEL
 386         help
 387           No ECC will be used.
 388           It's not a good idea and it should be reserved for testing
 389           purpose only.
 390
 391           If unsure, say N
 392
 393 endchoice
 394
 395 config MTD_NAND_PXA3xx
 396         tristate "Support for NAND flash devices on PXA3xx"
 397         depends on MTD_NAND && (PXA3xx || ARCH_MMP)
 398         help
 399           This enables the driver for the NAND flash device found on
 400           PXA3xx processors
 401
 402 config MTD_NAND_PXA3xx_BUILTIN
 403         bool "Use builtin definitions for some NAND chips (deprecated)"
 404         depends on MTD_NAND_PXA3xx
 405         help
 406           This enables builtin definitions for some NAND chips. This
 407           is deprecated in favor of platform specific data.
 408
 409 config MTD_NAND_CM_X270
 410         tristate "Support for NAND Flash on CM-X270 modules"
 411         depends on MTD_NAND && MACH_ARMCORE
 412
 413 config MTD_NAND_PASEMI
 414         tristate "NAND support for PA Semi PWRficient"
 415         depends on MTD_NAND && PPC_PASEMI
 416         help
 417           Enables support for NAND Flash interface on PA Semi PWRficient
 418           based boards
 419
 420 config MTD_NAND_TMIO
 421         tristate "NAND Flash device on Toshiba Mobile IO Controller"
 422         depends on MTD_NAND && MFD_TMIO
 423         help
 424           Support for NAND flash connected to a Toshiba Mobile IO
 425           Controller in some PDAs, including the Sharp SL6000x.
 426
 427 config MTD_NAND_NANDSIM
 428         tristate "Support for NAND Flash Simulator"
 429         depends on MTD_PARTITIONS
 430         help
 431           The simulator may simulate various NAND flash chips for the
 432           MTD nand layer.
 433
 434 config MTD_NAND_PLATFORM
 435         tristate "Support for generic platform NAND driver"
 436         depends on MTD_NAND
 437         help
 438           This implements a generic NAND driver for on-SOC platform
 439           devices. You will need to provide platform-specific functions
 440           via platform_data.
 441
 442 config MTD_ALAUDA
 443         tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
 444         depends on MTD_NAND && USB
 445         help
 446           These two (and possibly other) Alauda-based cardreaders for
 447           SmartMedia and xD allow raw flash access.
 448
 449 config MTD_NAND_ORION
 450         tristate "NAND Flash support for Marvell Orion SoC"
 451         depends on PLAT_ORION && MTD_NAND
 452         help
 453           This enables the NAND flash controller on Orion machines.
 454
 455           No board specific support is done by this driver, each board
 456           must advertise a platform_device for the driver to attach.
 457
 458 config MTD_NAND_FSL_ELBC
 459         tristate "NAND support for Freescale eLBC controllers"
 460         depends on MTD_NAND && PPC_OF
 461         help
 462           Various Freescale chips, including the 8313, include a NAND Flash
 463           Controller Module with built-in hardware ECC capabilities.
 464           Enabling this option will enable you to use this to control
 465           external NAND devices.
 466
 467 config MTD_NAND_FSL_UPM
 468         tristate "Support for NAND on Freescale UPM"
 469         depends on MTD_NAND && (PPC_83xx || PPC_85xx)
 470         select FSL_LBC
 471         help
 472           Enables support for NAND Flash chips wired onto Freescale PowerPC
 473           processor localbus with User-Programmable Machine support.
 474
 475 config MTD_NAND_MPC5121_NFC
 476         tristate "MPC5121 built-in NAND Flash Controller support"
 477         depends on PPC_MPC512x
 478         help
 479           This enables the driver for the NAND flash controller on the
 480           MPC5121 SoC.
 481
 482 config MTD_NAND_MXC
 483         tristate "MXC NAND support"
 484         depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3
 485         help
 486           This enables the driver for the NAND flash controller on the
 487           MXC processors.
 488
 489 config MTD_NAND_NOMADIK
 490         tristate "ST Nomadik 8815 NAND support"
 491         depends on ARCH_NOMADIK
 492         help
 493           Driver for the NAND flash controller on the Nomadik, with ECC.
 494
 495 config MTD_NAND_SH_FLCTL
 496         tristate "Support for NAND on Renesas SuperH FLCTL"
 497         depends on MTD_NAND && (SUPERH || ARCH_SHMOBILE)
 498         help
 499           Several Renesas SuperH CPU has FLCTL. This option enables support
 500           for NAND Flash using FLCTL.
 501
 502 config MTD_NAND_DAVINCI
 503         tristate "Support NAND on DaVinci SoC"
 504         depends on ARCH_DAVINCI
 505         help
 506           Enable the driver for NAND flash chips on Texas Instruments
 507           DaVinci processors.
 508
 509 config MTD_NAND_TXX9NDFMC
 510         tristate "NAND Flash support for TXx9 SoC"
 511         depends on SOC_TX4938 || SOC_TX4939
 512         help
 513           This enables the NAND flash controller on the TXx9 SoCs.
 514
 515 config MTD_NAND_SOCRATES
 516         tristate "Support for NAND on Socrates board"
 517         depends on MTD_NAND && SOCRATES
 518         help
 519           Enables support for NAND Flash chips wired onto Socrates board.
 520
 521 config MTD_NAND_NUC900
 522         tristate "Support for NAND on Nuvoton NUC9xx/w90p910 evaluation boards."
 523         depends on ARCH_W90X900 && MTD_PARTITIONS
 524         help
 525           This enables the driver for the NAND Flash on evaluation board based
 526           on w90p910 / NUC9xx.
 527
 528 endif # MTD_NAND