1# drivers/mtd/nand/Kconfig 2# $Id: Kconfig,v 1.35 2005/11/07 11:14:30 gleixner Exp $ 3 4menuconfig MTD_NAND 5 tristate "NAND Device Support" 6 depends on MTD 7 select MTD_NAND_IDS 8 help 9 This enables support for accessing all type of NAND flash 10 devices. For further information see 11 <http://www.linux-mtd.infradead.org/doc/nand.html>. 12 13if MTD_NAND 14 15config MTD_NAND_VERIFY_WRITE 16 bool "Verify NAND page writes" 17 help 18 This adds an extra check when data is written to the flash. The 19 NAND flash device internally checks only bits transitioning 20 from 1 to 0. There is a rare possibility that even though the 21 device thinks the write was successful, a bit could have been 22 flipped accidentally due to device wear or something else. 23 24config MTD_NAND_ECC_SMC 25 bool "NAND ECC Smart Media byte order" 26 default n 27 help 28 Software ECC according to the Smart Media Specification. 29 The original Linux implementation had byte 0 and 1 swapped. 30 31config MTD_NAND_MUSEUM_IDS 32 bool "Enable chip ids for obsolete ancient NAND devices" 33 depends on MTD_NAND 34 default n 35 help 36 Enable this option only when your board has first generation 37 NAND chips (page size 256 byte, erase size 4-8KiB). The IDs 38 of these chips were reused by later, larger chips. 39 40config MTD_NAND_AUTCPU12 41 tristate "SmartMediaCard on autronix autcpu12 board" 42 depends on ARCH_AUTCPU12 43 help 44 This enables the driver for the autronix autcpu12 board to 45 access the SmartMediaCard. 46 47config MTD_NAND_EDB7312 48 tristate "Support for Cirrus Logic EBD7312 evaluation board" 49 depends on ARCH_EDB7312 50 help 51 This enables the driver for the Cirrus Logic EBD7312 evaluation 52 board to access the onboard NAND Flash. 53 54config MTD_NAND_H1900 55 tristate "iPAQ H1900 flash" 56 depends on ARCH_PXA && MTD_PARTITIONS 57 help 58 This enables the driver for the iPAQ h1900 flash. 59 60config MTD_NAND_SPIA 61 tristate "NAND Flash device on SPIA board" 62 depends on ARCH_P720T 63 help 64 If you had to ask, you don't have one. Say 'N'. 65 66config MTD_NAND_AMS_DELTA 67 tristate "NAND Flash device on Amstrad E3" 68 depends on MACH_AMS_DELTA 69 help 70 Support for NAND flash on Amstrad E3 (Delta). 71 72config MTD_NAND_TOTO 73 tristate "NAND Flash device on TOTO board" 74 depends on ARCH_OMAP && BROKEN 75 help 76 Support for NAND flash on Texas Instruments Toto platform. 77 78config MTD_NAND_TS7250 79 tristate "NAND Flash device on TS-7250 board" 80 depends on MACH_TS72XX 81 help 82 Support for NAND flash on Technologic Systems TS-7250 platform. 83 84config MTD_NAND_IDS 85 tristate 86 87config MTD_NAND_AU1550 88 tristate "Au1550/1200 NAND support" 89 depends on SOC_AU1200 || SOC_AU1550 90 help 91 This enables the driver for the NAND flash controller on the 92 AMD/Alchemy 1550 SOC. 93 94config MTD_NAND_BF5XX 95 tristate "Blackfin on-chip NAND Flash Controller driver" 96 depends on (BF54x || BF52x) && MTD_NAND 97 help 98 This enables the Blackfin on-chip NAND flash controller 99 100 No board specific support is done by this driver, each board 101 must advertise a platform_device for the driver to attach. 102 103 This driver can also be built as a module. If so, the module 104 will be called bf5xx-nand. 105 106config MTD_NAND_BF5XX_HWECC 107 bool "BF5XX NAND Hardware ECC" 108 depends on MTD_NAND_BF5XX 109 help 110 Enable the use of the BF5XX's internal ECC generator when 111 using NAND. 112 113config MTD_NAND_RTC_FROM4 114 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)" 115 depends on SH_SOLUTION_ENGINE 116 select REED_SOLOMON 117 select REED_SOLOMON_DEC8 118 select BITREVERSE 119 help 120 This enables the driver for the Renesas Technology AG-AND 121 flash interface board (FROM_BOARD4) 122 123config MTD_NAND_PPCHAMELEONEVB 124 tristate "NAND Flash device on PPChameleonEVB board" 125 depends on PPCHAMELEONEVB && BROKEN 126 help 127 This enables the NAND flash driver on the PPChameleon EVB Board. 128 129config MTD_NAND_S3C2410 130 tristate "NAND Flash support for S3C2410/S3C2440 SoC" 131 depends on ARCH_S3C2410 132 help 133 This enables the NAND flash controller on the S3C2410 and S3C2440 134 SoCs 135 136 No board specific support is done by this driver, each board 137 must advertise a platform_device for the driver to attach. 138 139config MTD_NAND_S3C2410_DEBUG 140 bool "S3C2410 NAND driver debug" 141 depends on MTD_NAND_S3C2410 142 help 143 Enable debugging of the S3C2410 NAND driver 144 145config MTD_NAND_S3C2410_HWECC 146 bool "S3C2410 NAND Hardware ECC" 147 depends on MTD_NAND_S3C2410 148 help 149 Enable the use of the S3C2410's internal ECC generator when 150 using NAND. Early versions of the chip have had problems with 151 incorrect ECC generation, and if using these, the default of 152 software ECC is preferable. 153 154config MTD_NAND_NDFC 155 tristate "NDFC NanD Flash Controller" 156 depends on 4xx && !PPC_MERGE 157 select MTD_NAND_ECC_SMC 158 help 159 NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs 160 161config MTD_NAND_S3C2410_CLKSTOP 162 bool "S3C2410 NAND IDLE clock stop" 163 depends on MTD_NAND_S3C2410 164 default n 165 help 166 Stop the clock to the NAND controller when there is no chip 167 selected to save power. This will mean there is a small delay 168 when the is NAND chip selected or released, but will save 169 approximately 5mA of power when there is nothing happening. 170 171config MTD_NAND_DISKONCHIP 172 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)" 173 depends on EXPERIMENTAL 174 select REED_SOLOMON 175 select REED_SOLOMON_DEC16 176 help 177 This is a reimplementation of M-Systems DiskOnChip 2000, 178 Millennium and Millennium Plus as a standard NAND device driver, 179 as opposed to the earlier self-contained MTD device drivers. 180 This should enable, among other things, proper JFFS2 operation on 181 these devices. 182 183config MTD_NAND_DISKONCHIP_PROBE_ADVANCED 184 bool "Advanced detection options for DiskOnChip" 185 depends on MTD_NAND_DISKONCHIP 186 help 187 This option allows you to specify nonstandard address at which to 188 probe for a DiskOnChip, or to change the detection options. You 189 are unlikely to need any of this unless you are using LinuxBIOS. 190 Say 'N'. 191 192config MTD_NAND_DISKONCHIP_PROBE_ADDRESS 193 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED 194 depends on MTD_NAND_DISKONCHIP 195 default "0" 196 ---help--- 197 By default, the probe for DiskOnChip devices will look for a 198 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000. 199 This option allows you to specify a single address at which to probe 200 for the device, which is useful if you have other devices in that 201 range which get upset when they are probed. 202 203 (Note that on PowerPC, the normal probe will only check at 204 0xE4000000.) 205 206 Normally, you should leave this set to zero, to allow the probe at 207 the normal addresses. 208 209config MTD_NAND_DISKONCHIP_PROBE_HIGH 210 bool "Probe high addresses" 211 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED 212 help 213 By default, the probe for DiskOnChip devices will look for a 214 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000. 215 This option changes to make it probe between 0xFFFC8000 and 216 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be 217 useful to you. Say 'N'. 218 219config MTD_NAND_DISKONCHIP_BBTWRITE 220 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP" 221 depends on MTD_NAND_DISKONCHIP 222 help 223 On DiskOnChip devices shipped with the INFTL filesystem (Millennium 224 and 2000 TSOP/Alon), Linux reserves some space at the end of the 225 device for the Bad Block Table (BBT). If you have existing INFTL 226 data on your device (created by non-Linux tools such as M-Systems' 227 DOS drivers), your data might overlap the area Linux wants to use for 228 the BBT. If this is a concern for you, leave this option disabled and 229 Linux will not write BBT data into this area. 230 The downside of leaving this option disabled is that if bad blocks 231 are detected by Linux, they will not be recorded in the BBT, which 232 could cause future problems. 233 Once you enable this option, new filesystems (INFTL or others, created 234 in Linux or other operating systems) will not use the reserved area. 235 The only reason not to enable this option is to prevent damage to 236 preexisting filesystems. 237 Even if you leave this disabled, you can enable BBT writes at module 238 load time (assuming you build diskonchip as a module) with the module 239 parameter "inftl_bbt_write=1". 240 241config MTD_NAND_SHARPSL 242 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)" 243 depends on ARCH_PXA 244 245config MTD_NAND_BASLER_EXCITE 246 tristate "Support for NAND Flash on Basler eXcite" 247 depends on BASLER_EXCITE 248 help 249 This enables the driver for the NAND flash device found on the 250 Basler eXcite Smart Camera. If built as a module, the driver 251 will be named "excite_nandflash.ko". 252 253config MTD_NAND_CAFE 254 tristate "NAND support for OLPC CAFÉ chip" 255 depends on PCI 256 select REED_SOLOMON 257 select REED_SOLOMON_DEC16 258 help 259 Use NAND flash attached to the CAFÉ chip designed for the OLPC 260 laptop. 261 262config MTD_NAND_CS553X 263 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)" 264 depends on X86_32 && (X86_PC || X86_GENERICARCH) 265 help 266 The CS553x companion chips for the AMD Geode processor 267 include NAND flash controllers with built-in hardware ECC 268 capabilities; enabling this option will allow you to use 269 these. The driver will check the MSRs to verify that the 270 controller is enabled for NAND, and currently requires that 271 the controller be in MMIO mode. 272 273 If you say "m", the module will be called "cs553x_nand.ko". 274 275config MTD_NAND_AT91 276 bool "Support for NAND Flash / SmartMedia on AT91" 277 depends on ARCH_AT91 278 help 279 Enables support for NAND Flash / Smart Media Card interface 280 on Atmel AT91 processors. 281choice 282 prompt "ECC management for NAND Flash / SmartMedia on AT91" 283 depends on MTD_NAND_AT91 284 285config MTD_NAND_AT91_ECC_HW 286 bool "Hardware ECC" 287 depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 288 help 289 Uses hardware ECC provided by the at91sam9260/at91sam9263 chip 290 instead of software ECC. 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 300config MTD_NAND_AT91_ECC_SOFT 301 bool "Software ECC" 302 help 303 Uses 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 309config MTD_NAND_AT91_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 321endchoice 322 323config 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 330config MTD_NAND_CM_X270 331 tristate "Support for NAND Flash on CM-X270 modules" 332 depends on MTD_NAND && MACH_ARMCORE 333 334config 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 341config 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 348config 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 356config 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 363config 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 372config 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 381config 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 389endif # MTD_NAND 390