2 tristate "NAND Device Support"
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>.
12 config MTD_NAND_VERIFY_WRITE
13 bool "Verify NAND page writes"
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.
21 config MTD_NAND_SMARTMEDIA
25 config MTD_NAND_ECC_SMC
26 bool "NAND ECC Smart Media byte order"
29 Software ECC according to the Smart Media Specification.
30 The original Linux implementation had byte 0 and 1 swapped.
33 select MTD_NAND_SMARTMEDIA
37 config MTD_NAND_MUSEUM_IDS
38 bool "Enable chip ids for obsolete ancient NAND devices"
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.
46 config MTD_NAND_AUTCPU12
47 tristate "SmartMediaCard on autronix autcpu12 board"
48 depends on ARCH_AUTCPU12
50 This enables the driver for the autronix autcpu12 board to
51 access the SmartMediaCard.
53 config MTD_NAND_EDB7312
54 tristate "Support for Cirrus Logic EBD7312 evaluation board"
55 depends on ARCH_EDB7312
57 This enables the driver for the Cirrus Logic EBD7312 evaluation
58 board to access the onboard NAND Flash.
61 tristate "iPAQ H1900 flash"
62 depends on ARCH_PXA && MTD_PARTITIONS
64 This enables the driver for the iPAQ h1900 flash.
67 tristate "GPIO NAND Flash driver"
68 depends on GENERIC_GPIO && ARM
70 This enables a GPIO based NAND flash driver.
73 tristate "NAND Flash device on SPIA board"
76 If you had to ask, you don't have one. Say 'N'.
78 config MTD_NAND_AMS_DELTA
79 tristate "NAND Flash device on Amstrad E3"
80 depends on MACH_AMS_DELTA
82 Support for NAND flash on Amstrad E3 (Delta).
85 tristate "NAND Flash device on OMAP2 and OMAP3"
86 depends on ARM && MTD_NAND && (ARCH_OMAP2 || ARCH_OMAP3)
88 Support for NAND flash on Texas Instruments OMAP2 and OMAP3 platforms.
90 config MTD_NAND_OMAP_PREFETCH
91 bool "GPMC prefetch support for NAND Flash device"
92 depends on MTD_NAND && MTD_NAND_OMAP2
95 The NAND device can be accessed for Read/Write using GPMC PREFETCH engine
96 to improve the performance.
98 config MTD_NAND_OMAP_PREFETCH_DMA
99 depends on MTD_NAND_OMAP_PREFETCH
103 The GPMC PREFETCH engine can be configured eigther in MPU interrupt mode
104 or in DMA interrupt mode.
105 Say y for DMA mode or MPU mode will be used
110 config MTD_NAND_AU1550
111 tristate "Au1550/1200 NAND support"
112 depends on SOC_AU1200 || SOC_AU1550
114 This enables the driver for the NAND flash controller on the
115 AMD/Alchemy 1550 SOC.
117 config MTD_NAND_BF5XX
118 tristate "Blackfin on-chip NAND Flash Controller driver"
119 depends on (BF54x || BF52x) && MTD_NAND
121 This enables the Blackfin on-chip NAND flash controller
123 No board specific support is done by this driver, each board
124 must advertise a platform_device for the driver to attach.
126 This driver can also be built as a module. If so, the module
127 will be called bf5xx-nand.
129 config MTD_NAND_BF5XX_HWECC
130 bool "BF5XX NAND Hardware ECC"
132 depends on MTD_NAND_BF5XX
134 Enable the use of the BF5XX's internal ECC generator when
137 config MTD_NAND_BF5XX_BOOTROM_ECC
138 bool "Use Blackfin BootROM ECC Layout"
140 depends on MTD_NAND_BF5XX_HWECC
142 If you wish to modify NAND pages and allow the Blackfin on-chip
143 BootROM to boot from them, say Y here. This is only necessary
144 if you are booting U-Boot out of NAND and you wish to update
145 U-Boot from Linux' userspace. Otherwise, you should say N here.
149 config MTD_NAND_RTC_FROM4
150 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
151 depends on SH_SOLUTION_ENGINE
153 select REED_SOLOMON_DEC8
156 This enables the driver for the Renesas Technology AG-AND
157 flash interface board (FROM_BOARD4)
159 config MTD_NAND_PPCHAMELEONEVB
160 tristate "NAND Flash device on PPChameleonEVB board"
161 depends on PPCHAMELEONEVB && BROKEN
163 This enables the NAND flash driver on the PPChameleon EVB Board.
165 config MTD_NAND_S3C2410
166 tristate "NAND Flash support for Samsung S3C SoCs"
167 depends on ARCH_S3C2410 || ARCH_S3C64XX
169 This enables the NAND flash controller on the S3C24xx and S3C64xx
172 No board specific support is done by this driver, each board
173 must advertise a platform_device for the driver to attach.
175 config MTD_NAND_S3C2410_DEBUG
176 bool "Samsung S3C NAND driver debug"
177 depends on MTD_NAND_S3C2410
179 Enable debugging of the S3C NAND driver
181 config MTD_NAND_S3C2410_HWECC
182 bool "Samsung S3C NAND Hardware ECC"
183 depends on MTD_NAND_S3C2410
185 Enable the use of the controller's internal ECC generator when
186 using NAND. Early versions of the chips have had problems with
187 incorrect ECC generation, and if using these, the default of
188 software ECC is preferable.
191 tristate "NDFC NanD Flash Controller"
193 select MTD_NAND_ECC_SMC
195 NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
197 config MTD_NAND_S3C2410_CLKSTOP
198 bool "Samsung S3C NAND IDLE clock stop"
199 depends on MTD_NAND_S3C2410
202 Stop the clock to the NAND controller when there is no chip
203 selected to save power. This will mean there is a small delay
204 when the is NAND chip selected or released, but will save
205 approximately 5mA of power when there is nothing happening.
207 config MTD_NAND_BCM_UMI
208 tristate "NAND Flash support for BCM Reference Boards"
209 depends on ARCH_BCMRING && MTD_NAND
211 This enables the NAND flash controller on the BCM UMI block.
213 No board specfic support is done by this driver, each board
214 must advertise a platform_device for the driver to attach.
216 config MTD_NAND_BCM_UMI_HWCS
217 bool "BCM UMI NAND Hardware CS"
218 depends on MTD_NAND_BCM_UMI
220 Enable the use of the BCM UMI block's internal CS using NAND.
221 This should only be used if you know the external NAND CS can toggle.
223 config MTD_NAND_DISKONCHIP
224 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
225 depends on EXPERIMENTAL
227 select REED_SOLOMON_DEC16
229 This is a reimplementation of M-Systems DiskOnChip 2000,
230 Millennium and Millennium Plus as a standard NAND device driver,
231 as opposed to the earlier self-contained MTD device drivers.
232 This should enable, among other things, proper JFFS2 operation on
235 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
236 bool "Advanced detection options for DiskOnChip"
237 depends on MTD_NAND_DISKONCHIP
239 This option allows you to specify nonstandard address at which to
240 probe for a DiskOnChip, or to change the detection options. You
241 are unlikely to need any of this unless you are using LinuxBIOS.
244 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
245 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
246 depends on MTD_NAND_DISKONCHIP
249 By default, the probe for DiskOnChip devices will look for a
250 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
251 This option allows you to specify a single address at which to probe
252 for the device, which is useful if you have other devices in that
253 range which get upset when they are probed.
255 (Note that on PowerPC, the normal probe will only check at
258 Normally, you should leave this set to zero, to allow the probe at
259 the normal addresses.
261 config MTD_NAND_DISKONCHIP_PROBE_HIGH
262 bool "Probe high addresses"
263 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
265 By default, the probe for DiskOnChip devices will look for a
266 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
267 This option changes to make it probe between 0xFFFC8000 and
268 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
269 useful to you. Say 'N'.
271 config MTD_NAND_DISKONCHIP_BBTWRITE
272 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
273 depends on MTD_NAND_DISKONCHIP
275 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
276 and 2000 TSOP/Alon), Linux reserves some space at the end of the
277 device for the Bad Block Table (BBT). If you have existing INFTL
278 data on your device (created by non-Linux tools such as M-Systems'
279 DOS drivers), your data might overlap the area Linux wants to use for
280 the BBT. If this is a concern for you, leave this option disabled and
281 Linux will not write BBT data into this area.
282 The downside of leaving this option disabled is that if bad blocks
283 are detected by Linux, they will not be recorded in the BBT, which
284 could cause future problems.
285 Once you enable this option, new filesystems (INFTL or others, created
286 in Linux or other operating systems) will not use the reserved area.
287 The only reason not to enable this option is to prevent damage to
288 preexisting filesystems.
289 Even if you leave this disabled, you can enable BBT writes at module
290 load time (assuming you build diskonchip as a module) with the module
291 parameter "inftl_bbt_write=1".
293 config MTD_NAND_SHARPSL
294 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
297 config MTD_NAND_BASLER_EXCITE
298 tristate "Support for NAND Flash on Basler eXcite"
299 depends on BASLER_EXCITE
301 This enables the driver for the NAND flash device found on the
302 Basler eXcite Smart Camera. If built as a module, the driver
303 will be named excite_nandflash.
306 tristate "NAND support for OLPC CAFÉ chip"
309 select REED_SOLOMON_DEC16
311 Use NAND flash attached to the CAFÉ chip designed for the OLPC
314 config MTD_NAND_CS553X
315 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
318 The CS553x companion chips for the AMD Geode processor
319 include NAND flash controllers with built-in hardware ECC
320 capabilities; enabling this option will allow you to use
321 these. The driver will check the MSRs to verify that the
322 controller is enabled for NAND, and currently requires that
323 the controller be in MMIO mode.
325 If you say "m", the module will be called cs553x_nand.
327 config MTD_NAND_ATMEL
328 tristate "Support for NAND Flash / SmartMedia on AT91 and AVR32"
329 depends on ARCH_AT91 || AVR32
331 Enables support for NAND Flash / Smart Media Card interface
332 on Atmel AT91 and AVR32 processors.
334 prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
335 depends on MTD_NAND_ATMEL
337 config MTD_NAND_ATMEL_ECC_HW
339 depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32
341 Use hardware ECC instead of software ECC when the chip
344 The hardware ECC controller is capable of single bit error
345 correction and 2-bit random detection per page.
347 NB : hardware and software ECC schemes are incompatible.
348 If you switch from one to another, you'll have to erase your
353 config MTD_NAND_ATMEL_ECC_SOFT
358 NB : hardware and software ECC schemes are incompatible.
359 If you switch from one to another, you'll have to erase your
362 config MTD_NAND_ATMEL_ECC_NONE
363 bool "No ECC (testing only, DANGEROUS)"
364 depends on DEBUG_KERNEL
367 It's not a good idea and it should be reserved for testing
376 config MTD_NAND_PXA3xx
377 tristate "Support for NAND flash devices on PXA3xx"
378 depends on MTD_NAND && (PXA3xx || ARCH_MMP)
380 This enables the driver for the NAND flash device found on
383 config MTD_NAND_PXA3xx_BUILTIN
384 bool "Use builtin definitions for some NAND chips (deprecated)"
385 depends on MTD_NAND_PXA3xx
387 This enables builtin definitions for some NAND chips. This
388 is deprecated in favor of platform specific data.
390 config MTD_NAND_CM_X270
391 tristate "Support for NAND Flash on CM-X270 modules"
392 depends on MTD_NAND && MACH_ARMCORE
394 config MTD_NAND_PASEMI
395 tristate "NAND support for PA Semi PWRficient"
396 depends on MTD_NAND && PPC_PASEMI
398 Enables support for NAND Flash interface on PA Semi PWRficient
402 tristate "NAND Flash device on Toshiba Mobile IO Controller"
403 depends on MTD_NAND && MFD_TMIO
405 Support for NAND flash connected to a Toshiba Mobile IO
406 Controller in some PDAs, including the Sharp SL6000x.
408 config MTD_NAND_NANDSIM
409 tristate "Support for NAND Flash Simulator"
410 depends on MTD_PARTITIONS
412 The simulator may simulate various NAND flash chips for the
415 config MTD_NAND_PLATFORM
416 tristate "Support for generic platform NAND driver"
419 This implements a generic NAND driver for on-SOC platform
420 devices. You will need to provide platform-specific functions
424 tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
425 depends on MTD_NAND && USB
427 These two (and possibly other) Alauda-based cardreaders for
428 SmartMedia and xD allow raw flash access.
430 config MTD_NAND_ORION
431 tristate "NAND Flash support for Marvell Orion SoC"
432 depends on PLAT_ORION && MTD_NAND
434 This enables the NAND flash controller on Orion machines.
436 No board specific support is done by this driver, each board
437 must advertise a platform_device for the driver to attach.
439 config MTD_NAND_FSL_ELBC
440 tristate "NAND support for Freescale eLBC controllers"
441 depends on MTD_NAND && PPC_OF
443 Various Freescale chips, including the 8313, include a NAND Flash
444 Controller Module with built-in hardware ECC capabilities.
445 Enabling this option will enable you to use this to control
446 external NAND devices.
448 config MTD_NAND_FSL_UPM
449 tristate "Support for NAND on Freescale UPM"
450 depends on MTD_NAND && (PPC_83xx || PPC_85xx)
453 Enables support for NAND Flash chips wired onto Freescale PowerPC
454 processor localbus with User-Programmable Machine support.
456 config MTD_NAND_MPC5121_NFC
457 tristate "MPC5121 built-in NAND Flash Controller support"
458 depends on PPC_MPC512x
460 This enables the driver for the NAND flash controller on the
464 tristate "MXC NAND support"
465 depends on ARCH_MX2 || ARCH_MX3
467 This enables the driver for the NAND flash controller on the
470 config MTD_NAND_NOMADIK
471 tristate "ST Nomadik 8815 NAND support"
472 depends on ARCH_NOMADIK
474 Driver for the NAND flash controller on the Nomadik, with ECC.
476 config MTD_NAND_SH_FLCTL
477 tristate "Support for NAND on Renesas SuperH FLCTL"
478 depends on MTD_NAND && SUPERH && CPU_SUBTYPE_SH7723
480 Several Renesas SuperH CPU has FLCTL. This option enables support
481 for NAND Flash using FLCTL. This driver support SH7723.
483 config MTD_NAND_DAVINCI
484 tristate "Support NAND on DaVinci SoC"
485 depends on ARCH_DAVINCI
487 Enable the driver for NAND flash chips on Texas Instruments
490 config MTD_NAND_TXX9NDFMC
491 tristate "NAND Flash support for TXx9 SoC"
492 depends on SOC_TX4938 || SOC_TX4939
494 This enables the NAND flash controller on the TXx9 SoCs.
496 config MTD_NAND_SOCRATES
497 tristate "Support for NAND on Socrates board"
498 depends on MTD_NAND && SOCRATES
500 Enables support for NAND Flash chips wired onto Socrates board.
502 config MTD_NAND_NUC900
503 tristate "Support for NAND on Nuvoton NUC9xx/w90p910 evaluation boards."
504 depends on ARCH_W90X900 && MTD_PARTITIONS
506 This enables the driver for the NAND Flash on evaluation board based