1menuconfig 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 10if MTD_NAND 11 12config 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 21config 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 28config 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 37config 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 44config 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 51config 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 57config 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 63config 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 69config 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 75config 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 81config 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 89config 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 98config 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 104config MTD_NAND_IDS 105 tristate 106 107config 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 114config 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 126config 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 134config 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 146config 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 156config 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 162config 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 172config 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 178config 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 187config 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 194config 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 204config 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 213config 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 220config 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 232config 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 241config 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 258config 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 268config 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 290config MTD_NAND_SHARPSL 291 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)" 292 depends on ARCH_PXA 293 294config 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 303config 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 316config 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. 322choice 323 prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32" 324 depends on MTD_NAND_ATMEL 325 326config 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 342config 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 351config 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 363endchoice 364 365config 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 372config 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 379config MTD_NAND_CM_X270 380 tristate "Support for NAND Flash on CM-X270 modules" 381 depends on MTD_NAND && MACH_ARMCORE 382 383config 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 390config 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 397config 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 404config 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 412config 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 419config 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 428config 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 437config 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 445config 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 452config 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 458config 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 465config 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 472config 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 478config 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 484config 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 491endif # MTD_NAND 492