drivers/mtd/nand/Kconfig

   1 menuconfig MTD_NAND
   2         tristate "NAND Device Support"
   3         depends on MTD
   4         select MTD_NAND_IDS
   5         help
   6           This enables support for accessing all type of NAND flash
   7           devices. For further information see
   8           <http://www.linux-mtd.infradead.org/doc/nand.html>.
   9
  10 if MTD_NAND
  11
  12 config MTD_NAND_VERIFY_WRITE
  13         bool "Verify NAND page writes"
  14         help
  15           This adds an extra check when data is written to the flash. The
  16           NAND flash device internally checks only bits transitioning
  17           from 1 to 0. There is a rare possibility that even though the
  18           device thinks the write was successful, a bit could have been
  19           flipped accidentally due to device wear or something else.
  20
  21 config MTD_NAND_ECC_SMC
  22         bool "NAND ECC Smart Media byte order"
  23         default n
  24         help
  25           Software ECC according to the Smart Media Specification.
  26           The original Linux implementation had byte 0 and 1 swapped.
  27
  28 config MTD_NAND_MUSEUM_IDS
  29         bool "Enable chip ids for obsolete ancient NAND devices"
  30         depends on MTD_NAND
  31         default n
  32         help
  33           Enable this option only when your board has first generation
  34           NAND chips (page size 256 byte, erase size 4-8KiB). The IDs
  35           of these chips were reused by later, larger chips.
  36
  37 config MTD_NAND_AUTCPU12
  38         tristate "SmartMediaCard on autronix autcpu12 board"
  39         depends on ARCH_AUTCPU12
  40         help
  41           This enables the driver for the autronix autcpu12 board to
  42           access the SmartMediaCard.
  43
  44 config MTD_NAND_EDB7312
  45         tristate "Support for Cirrus Logic EBD7312 evaluation board"
  46         depends on ARCH_EDB7312
  47         help
  48           This enables the driver for the Cirrus Logic EBD7312 evaluation
  49           board to access the onboard NAND Flash.
  50
  51 config MTD_NAND_H1900
  52         tristate "iPAQ H1900 flash"
  53         depends on ARCH_PXA && MTD_PARTITIONS
  54         help
  55           This enables the driver for the iPAQ h1900 flash.
  56
  57 config MTD_NAND_GPIO
  58         tristate "GPIO NAND Flash driver"
  59         depends on GENERIC_GPIO && ARM
  60         help
  61           This enables a GPIO based NAND flash driver.
  62
  63 config MTD_NAND_SPIA
  64         tristate "NAND Flash device on SPIA board"
  65         depends on ARCH_P720T
  66         help
  67           If you had to ask, you don't have one. Say 'N'.
  68
  69 config MTD_NAND_AMS_DELTA
  70         tristate "NAND Flash device on Amstrad E3"
  71         depends on MACH_AMS_DELTA
  72         help
  73           Support for NAND flash on Amstrad E3 (Delta).
  74
  75 config MTD_NAND_OMAP2
  76         tristate "NAND Flash device on OMAP2 and OMAP3"
  77         depends on ARM && MTD_NAND && (ARCH_OMAP2 || ARCH_OMAP3)
  78         help
  79           Support for NAND flash on Texas Instruments OMAP2 and OMAP3 platforms.
  80
  81 config MTD_NAND_OMAP_PREFETCH
  82         bool "GPMC prefetch support for NAND Flash device"
  83         depends on MTD_NAND && MTD_NAND_OMAP2
  84         default y
  85         help
  86          The NAND device can be accessed for Read/Write using GPMC PREFETCH engine
  87          to improve the performance.
  88
  89 config MTD_NAND_OMAP_PREFETCH_DMA
  90         depends on MTD_NAND_OMAP_PREFETCH
  91         bool "DMA mode"
  92         default n
  93         help
  94          The GPMC PREFETCH engine can be configured eigther in MPU interrupt mode
  95          or in DMA interrupt mode.
  96          Say y for DMA mode or MPU mode will be used
  97
  98 config MTD_NAND_TS7250
  99         tristate "NAND Flash device on TS-7250 board"
 100         depends on MACH_TS72XX
 101         help
 102           Support for NAND flash on Technologic Systems TS-7250 platform.
 103
 104 config MTD_NAND_IDS
 105         tristate
 106
 107 config MTD_NAND_AU1550
 108         tristate "Au1550/1200 NAND support"
 109         depends on SOC_AU1200 || SOC_AU1550
 110         help
 111           This enables the driver for the NAND flash controller on the
 112           AMD/Alchemy 1550 SOC.
 113
 114 config MTD_NAND_BF5XX
 115         tristate "Blackfin on-chip NAND Flash Controller driver"
 116         depends on (BF54x || BF52x) && MTD_NAND
 117         help
 118           This enables the Blackfin on-chip NAND flash controller
 119
 120           No board specific support is done by this driver, each board
 121           must advertise a platform_device for the driver to attach.
 122
 123           This driver can also be built as a module. If so, the module
 124           will be called bf5xx-nand.
 125
 126 config MTD_NAND_BF5XX_HWECC
 127         bool "BF5XX NAND Hardware ECC"
 128         default y
 129         depends on MTD_NAND_BF5XX
 130         help
 131           Enable the use of the BF5XX's internal ECC generator when
 132           using NAND.
 133
 134 config MTD_NAND_BF5XX_BOOTROM_ECC
 135         bool "Use Blackfin BootROM ECC Layout"
 136         default n
 137         depends on MTD_NAND_BF5XX_HWECC
 138         help
 139           If you wish to modify NAND pages and allow the Blackfin on-chip
 140           BootROM to boot from them, say Y here.  This is only necessary
 141           if you are booting U-Boot out of NAND and you wish to update
 142           U-Boot from Linux' userspace.  Otherwise, you should say N here.
 143
 144           If unsure, say N.
 145
 146 config MTD_NAND_RTC_FROM4
 147         tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
 148         depends on SH_SOLUTION_ENGINE
 149         select REED_SOLOMON
 150         select REED_SOLOMON_DEC8
 151         select BITREVERSE
 152         help
 153           This enables the driver for the Renesas Technology AG-AND
 154           flash interface board (FROM_BOARD4)
 155
 156 config MTD_NAND_PPCHAMELEONEVB
 157         tristate "NAND Flash device on PPChameleonEVB board"
 158         depends on PPCHAMELEONEVB && BROKEN
 159         help
 160           This enables the NAND flash driver on the PPChameleon EVB Board.
 161
 162 config MTD_NAND_S3C2410
 163         tristate "NAND Flash support for Samsung S3C SoCs"
 164         depends on ARCH_S3C2410 || ARCH_S3C64XX
 165         help
 166           This enables the NAND flash controller on the S3C24xx and S3C64xx
 167           SoCs
 168
 169           No board specific support is done by this driver, each board
 170           must advertise a platform_device for the driver to attach.
 171
 172 config MTD_NAND_S3C2410_DEBUG
 173         bool "Samsung S3C NAND driver debug"
 174         depends on MTD_NAND_S3C2410
 175         help
 176           Enable debugging of the S3C NAND driver
 177
 178 config MTD_NAND_S3C2410_HWECC
 179         bool "Samsung S3C NAND Hardware ECC"
 180         depends on MTD_NAND_S3C2410
 181         help
 182           Enable the use of the controller's internal ECC generator when
 183           using NAND. Early versions of the chips have had problems with
 184           incorrect ECC generation, and if using these, the default of
 185           software ECC is preferable.
 186
 187 config MTD_NAND_NDFC
 188         tristate "NDFC NanD Flash Controller"
 189         depends on 4xx
 190         select MTD_NAND_ECC_SMC
 191         help
 192          NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
 193
 194 config MTD_NAND_S3C2410_CLKSTOP
 195         bool "Samsung S3C NAND IDLE clock stop"
 196         depends on MTD_NAND_S3C2410
 197         default n
 198         help
 199           Stop the clock to the NAND controller when there is no chip
 200           selected to save power. This will mean there is a small delay
 201           when the is NAND chip selected or released, but will save
 202           approximately 5mA of power when there is nothing happening.
 203
 204 config MTD_NAND_BCM_UMI
 205         tristate "NAND Flash support for BCM Reference Boards"
 206         depends on ARCH_BCMRING && MTD_NAND
 207         help
 208           This enables the NAND flash controller on the BCM UMI block.
 209
 210           No board specfic support is done by this driver, each board
 211           must advertise a platform_device for the driver to attach.
 212
 213 config MTD_NAND_BCM_UMI_HWCS
 214         bool "BCM UMI NAND Hardware CS"
 215         depends on MTD_NAND_BCM_UMI
 216         help
 217           Enable the use of the BCM UMI block's internal CS using NAND.
 218           This should only be used if you know the external NAND CS can toggle.
 219
 220 config MTD_NAND_DISKONCHIP
 221         tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
 222         depends on EXPERIMENTAL
 223         select REED_SOLOMON
 224         select REED_SOLOMON_DEC16
 225         help
 226           This is a reimplementation of M-Systems DiskOnChip 2000,
 227           Millennium and Millennium Plus as a standard NAND device driver,
 228           as opposed to the earlier self-contained MTD device drivers.
 229           This should enable, among other things, proper JFFS2 operation on
 230           these devices.
 231
 232 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
 233         bool "Advanced detection options for DiskOnChip"
 234         depends on MTD_NAND_DISKONCHIP
 235         help
 236           This option allows you to specify nonstandard address at which to
 237           probe for a DiskOnChip, or to change the detection options.  You
 238           are unlikely to need any of this unless you are using LinuxBIOS.
 239           Say 'N'.
 240
 241 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
 242         hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
 243         depends on MTD_NAND_DISKONCHIP
 244         default "0"
 245         ---help---
 246         By default, the probe for DiskOnChip devices will look for a
 247         DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
 248         This option allows you to specify a single address at which to probe
 249         for the device, which is useful if you have other devices in that
 250         range which get upset when they are probed.
 251
 252         (Note that on PowerPC, the normal probe will only check at
 253         0xE4000000.)
 254
 255         Normally, you should leave this set to zero, to allow the probe at
 256         the normal addresses.
 257
 258 config MTD_NAND_DISKONCHIP_PROBE_HIGH
 259         bool "Probe high addresses"
 260         depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
 261         help
 262           By default, the probe for DiskOnChip devices will look for a
 263           DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
 264           This option changes to make it probe between 0xFFFC8000 and
 265           0xFFFEE000.  Unless you are using LinuxBIOS, this is unlikely to be
 266           useful to you.  Say 'N'.
 267
 268 config MTD_NAND_DISKONCHIP_BBTWRITE
 269         bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
 270         depends on MTD_NAND_DISKONCHIP
 271         help
 272           On DiskOnChip devices shipped with the INFTL filesystem (Millennium
 273           and 2000 TSOP/Alon), Linux reserves some space at the end of the
 274           device for the Bad Block Table (BBT).  If you have existing INFTL
 275           data on your device (created by non-Linux tools such as M-Systems'
 276           DOS drivers), your data might overlap the area Linux wants to use for
 277           the BBT.  If this is a concern for you, leave this option disabled and
 278           Linux will not write BBT data into this area.
 279           The downside of leaving this option disabled is that if bad blocks
 280           are detected by Linux, they will not be recorded in the BBT, which
 281           could cause future problems.
 282           Once you enable this option, new filesystems (INFTL or others, created
 283           in Linux or other operating systems) will not use the reserved area.
 284           The only reason not to enable this option is to prevent damage to
 285           preexisting filesystems.
 286           Even if you leave this disabled, you can enable BBT writes at module
 287           load time (assuming you build diskonchip as a module) with the module
 288           parameter "inftl_bbt_write=1".
 289
 290 config MTD_NAND_SHARPSL
 291         tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
 292         depends on ARCH_PXA
 293
 294 config MTD_NAND_CAFE
 295         tristate "NAND support for OLPC CAFÉ chip"
 296         depends on PCI
 297         select REED_SOLOMON
 298         select REED_SOLOMON_DEC16
 299         help
 300           Use NAND flash attached to the CAFÉ chip designed for the OLPC
 301           laptop.
 302
 303 config MTD_NAND_CS553X
 304         tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
 305         depends on X86_32
 306         help
 307           The CS553x companion chips for the AMD Geode processor
 308           include NAND flash controllers with built-in hardware ECC
 309           capabilities; enabling this option will allow you to use
 310           these. The driver will check the MSRs to verify that the
 311           controller is enabled for NAND, and currently requires that
 312           the controller be in MMIO mode.
 313
 314           If you say "m", the module will be called cs553x_nand.
 315
 316 config MTD_NAND_ATMEL
 317         tristate "Support for NAND Flash / SmartMedia on AT91 and AVR32"
 318         depends on ARCH_AT91 || AVR32
 319         help
 320           Enables support for NAND Flash / Smart Media Card interface
 321           on Atmel AT91 and AVR32 processors.
 322 choice
 323         prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
 324         depends on MTD_NAND_ATMEL
 325
 326 config MTD_NAND_ATMEL_ECC_HW
 327         bool "Hardware ECC"
 328         depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32
 329         help
 330           Use hardware ECC instead of software ECC when the chip
 331           supports it.
 332
 333           The hardware ECC controller is capable of single bit error
 334           correction and 2-bit random detection per page.
 335
 336           NB : hardware and software ECC schemes are incompatible.
 337           If you switch from one to another, you'll have to erase your
 338           mtd partition.
 339
 340           If unsure, say Y
 341
 342 config MTD_NAND_ATMEL_ECC_SOFT
 343         bool "Software ECC"
 344         help
 345           Use software ECC.
 346
 347           NB : hardware and software ECC schemes are incompatible.
 348           If you switch from one to another, you'll have to erase your
 349           mtd partition.
 350
 351 config MTD_NAND_ATMEL_ECC_NONE
 352         bool "No ECC (testing only, DANGEROUS)"
 353         depends on DEBUG_KERNEL
 354         help
 355           No ECC will be used.
 356           It's not a good idea and it should be reserved for testing
 357           purpose only.
 358
 359           If unsure, say N
 360
 361           endchoice
 362
 363 endchoice
 364
 365 config MTD_NAND_PXA3xx
 366         tristate "Support for NAND flash devices on PXA3xx"
 367         depends on MTD_NAND && (PXA3xx || ARCH_MMP)
 368         help
 369           This enables the driver for the NAND flash device found on
 370           PXA3xx processors
 371
 372 config MTD_NAND_PXA3xx_BUILTIN
 373         bool "Use builtin definitions for some NAND chips (deprecated)"
 374         depends on MTD_NAND_PXA3xx
 375         help
 376           This enables builtin definitions for some NAND chips. This
 377           is deprecated in favor of platform specific data.
 378
 379 config MTD_NAND_CM_X270
 380         tristate "Support for NAND Flash on CM-X270 modules"
 381         depends on MTD_NAND && MACH_ARMCORE
 382
 383 config MTD_NAND_PASEMI
 384         tristate "NAND support for PA Semi PWRficient"
 385         depends on MTD_NAND && PPC_PASEMI
 386         help
 387           Enables support for NAND Flash interface on PA Semi PWRficient
 388           based boards
 389
 390 config MTD_NAND_TMIO
 391         tristate "NAND Flash device on Toshiba Mobile IO Controller"
 392         depends on MTD_NAND && MFD_TMIO
 393         help
 394           Support for NAND flash connected to a Toshiba Mobile IO
 395           Controller in some PDAs, including the Sharp SL6000x.
 396
 397 config MTD_NAND_NANDSIM
 398         tristate "Support for NAND Flash Simulator"
 399         depends on MTD_PARTITIONS
 400         help
 401           The simulator may simulate various NAND flash chips for the
 402           MTD nand layer.
 403
 404 config MTD_NAND_PLATFORM
 405         tristate "Support for generic platform NAND driver"
 406         depends on MTD_NAND
 407         help
 408           This implements a generic NAND driver for on-SOC platform
 409           devices. You will need to provide platform-specific functions
 410           via platform_data.
 411
 412 config MTD_ALAUDA
 413         tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
 414         depends on MTD_NAND && USB
 415         help
 416           These two (and possibly other) Alauda-based cardreaders for
 417           SmartMedia and xD allow raw flash access.
 418
 419 config MTD_NAND_ORION
 420         tristate "NAND Flash support for Marvell Orion SoC"
 421         depends on PLAT_ORION && MTD_NAND
 422         help
 423           This enables the NAND flash controller on Orion machines.
 424
 425           No board specific support is done by this driver, each board
 426           must advertise a platform_device for the driver to attach.
 427
 428 config MTD_NAND_FSL_ELBC
 429         tristate "NAND support for Freescale eLBC controllers"
 430         depends on MTD_NAND && PPC_OF
 431         help
 432           Various Freescale chips, including the 8313, include a NAND Flash
 433           Controller Module with built-in hardware ECC capabilities.
 434           Enabling this option will enable you to use this to control
 435           external NAND devices.
 436
 437 config MTD_NAND_FSL_UPM
 438         tristate "Support for NAND on Freescale UPM"
 439         depends on MTD_NAND && (PPC_83xx || PPC_85xx)
 440         select FSL_LBC
 441         help
 442           Enables support for NAND Flash chips wired onto Freescale PowerPC
 443           processor localbus with User-Programmable Machine support.
 444
 445 config MTD_NAND_MXC
 446         tristate "MXC NAND support"
 447         depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3
 448         help
 449           This enables the driver for the NAND flash controller on the
 450           MXC processors.
 451
 452 config MTD_NAND_NOMADIK
 453         tristate "ST Nomadik 8815 NAND support"
 454         depends on ARCH_NOMADIK
 455         help
 456           Driver for the NAND flash controller on the Nomadik, with ECC.
 457
 458 config MTD_NAND_SH_FLCTL
 459         tristate "Support for NAND on Renesas SuperH FLCTL"
 460         depends on MTD_NAND && (SUPERH || ARCH_SHMOBILE)
 461         help
 462           Several Renesas SuperH CPU has FLCTL. This option enables support
 463           for NAND Flash using FLCTL.
 464
 465 config MTD_NAND_DAVINCI
 466         tristate "Support NAND on DaVinci SoC"
 467         depends on ARCH_DAVINCI
 468         help
 469           Enable the driver for NAND flash chips on Texas Instruments
 470           DaVinci processors.
 471
 472 config MTD_NAND_TXX9NDFMC
 473         tristate "NAND Flash support for TXx9 SoC"
 474         depends on SOC_TX4938 || SOC_TX4939
 475         help
 476           This enables the NAND flash controller on the TXx9 SoCs.
 477
 478 config MTD_NAND_SOCRATES
 479         tristate "Support for NAND on Socrates board"
 480         depends on MTD_NAND && SOCRATES
 481         help
 482           Enables support for NAND Flash chips wired onto Socrates board.
 483
 484 config MTD_NAND_W90P910
 485         tristate "Support for NAND on w90p910 evaluation board."
 486         depends on ARCH_W90X900 && MTD_PARTITIONS
 487         help
 488           This enables the driver for the NAND Flash on evaluation board based
 489           on w90p910.
 490
 491 endif # MTD_NAND