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_ECC_SMC
22 bool "NAND ECC Smart Media byte order"
25 Software ECC according to the Smart Media Specification.
26 The original Linux implementation had byte 0 and 1 swapped.
28 config MTD_NAND_MUSEUM_IDS
29 bool "Enable chip ids for obsolete ancient NAND devices"
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.
37 config MTD_NAND_AUTCPU12
38 tristate "SmartMediaCard on autronix autcpu12 board"
39 depends on ARCH_AUTCPU12
41 This enables the driver for the autronix autcpu12 board to
42 access the SmartMediaCard.
44 config MTD_NAND_EDB7312
45 tristate "Support for Cirrus Logic EBD7312 evaluation board"
46 depends on ARCH_EDB7312
48 This enables the driver for the Cirrus Logic EBD7312 evaluation
49 board to access the onboard NAND Flash.
52 tristate "iPAQ H1900 flash"
53 depends on ARCH_PXA && MTD_PARTITIONS
55 This enables the driver for the iPAQ h1900 flash.
58 tristate "GPIO NAND Flash driver"
59 depends on GENERIC_GPIO && ARM
61 This enables a GPIO based NAND flash driver.
64 tristate "NAND Flash device on SPIA board"
67 If you had to ask, you don't have one. Say 'N'.
69 config MTD_NAND_AMS_DELTA
70 tristate "NAND Flash device on Amstrad E3"
71 depends on MACH_AMS_DELTA
73 Support for NAND flash on Amstrad E3 (Delta).
76 tristate "NAND Flash device on OMAP2 and OMAP3"
77 depends on ARM && MTD_NAND && (ARCH_OMAP2 || ARCH_OMAP3)
79 Support for NAND flash on Texas Instruments OMAP2 and OMAP3 platforms.
81 config MTD_NAND_OMAP_PREFETCH
82 bool "GPMC prefetch support for NAND Flash device"
83 depends on MTD_NAND && MTD_NAND_OMAP2
86 The NAND device can be accessed for Read/Write using GPMC PREFETCH engine
87 to improve the performance.
89 config MTD_NAND_OMAP_PREFETCH_DMA
90 depends on MTD_NAND_OMAP_PREFETCH
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
98 config MTD_NAND_TS7250
99 tristate "NAND Flash device on TS-7250 board"
100 depends on MACH_TS72XX
102 Support for NAND flash on Technologic Systems TS-7250 platform.
107 config MTD_NAND_AU1550
108 tristate "Au1550/1200 NAND support"
109 depends on SOC_AU1200 || SOC_AU1550
111 This enables the driver for the NAND flash controller on the
112 AMD/Alchemy 1550 SOC.
114 config MTD_NAND_BF5XX
115 tristate "Blackfin on-chip NAND Flash Controller driver"
116 depends on (BF54x || BF52x) && MTD_NAND
118 This enables the Blackfin on-chip NAND flash controller
120 No board specific support is done by this driver, each board
121 must advertise a platform_device for the driver to attach.
123 This driver can also be built as a module. If so, the module
124 will be called bf5xx-nand.
126 config MTD_NAND_BF5XX_HWECC
127 bool "BF5XX NAND Hardware ECC"
129 depends on MTD_NAND_BF5XX
131 Enable the use of the BF5XX's internal ECC generator when
134 config MTD_NAND_BF5XX_BOOTROM_ECC
135 bool "Use Blackfin BootROM ECC Layout"
137 depends on MTD_NAND_BF5XX_HWECC
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.
146 config MTD_NAND_RTC_FROM4
147 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
148 depends on SH_SOLUTION_ENGINE
150 select REED_SOLOMON_DEC8
153 This enables the driver for the Renesas Technology AG-AND
154 flash interface board (FROM_BOARD4)
156 config MTD_NAND_PPCHAMELEONEVB
157 tristate "NAND Flash device on PPChameleonEVB board"
158 depends on PPCHAMELEONEVB && BROKEN
160 This enables the NAND flash driver on the PPChameleon EVB Board.
162 config MTD_NAND_S3C2410
163 tristate "NAND Flash support for Samsung S3C SoCs"
164 depends on ARCH_S3C2410 || ARCH_S3C64XX
166 This enables the NAND flash controller on the S3C24xx and S3C64xx
169 No board specific support is done by this driver, each board
170 must advertise a platform_device for the driver to attach.
172 config MTD_NAND_S3C2410_DEBUG
173 bool "Samsung S3C NAND driver debug"
174 depends on MTD_NAND_S3C2410
176 Enable debugging of the S3C NAND driver
178 config MTD_NAND_S3C2410_HWECC
179 bool "Samsung S3C NAND Hardware ECC"
180 depends on MTD_NAND_S3C2410
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.
188 tristate "NDFC NanD Flash Controller"
190 select MTD_NAND_ECC_SMC
192 NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
194 config MTD_NAND_S3C2410_CLKSTOP
195 bool "Samsung S3C NAND IDLE clock stop"
196 depends on MTD_NAND_S3C2410
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.
204 config MTD_NAND_BCM_UMI
205 tristate "NAND Flash support for BCM Reference Boards"
206 depends on ARCH_BCMRING && MTD_NAND
208 This enables the NAND flash controller on the BCM UMI block.
210 No board specfic support is done by this driver, each board
211 must advertise a platform_device for the driver to attach.
213 config MTD_NAND_BCM_UMI_HWCS
214 bool "BCM UMI NAND Hardware CS"
215 depends on MTD_NAND_BCM_UMI
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.
220 config MTD_NAND_DISKONCHIP
221 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
222 depends on EXPERIMENTAL
224 select REED_SOLOMON_DEC16
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
232 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
233 bool "Advanced detection options for DiskOnChip"
234 depends on MTD_NAND_DISKONCHIP
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.
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
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.
252 (Note that on PowerPC, the normal probe will only check at
255 Normally, you should leave this set to zero, to allow the probe at
256 the normal addresses.
258 config MTD_NAND_DISKONCHIP_PROBE_HIGH
259 bool "Probe high addresses"
260 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
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'.
268 config MTD_NAND_DISKONCHIP_BBTWRITE
269 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
270 depends on MTD_NAND_DISKONCHIP
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".
290 config MTD_NAND_SHARPSL
291 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
294 config MTD_NAND_BASLER_EXCITE
295 tristate "Support for NAND Flash on Basler eXcite"
296 depends on BASLER_EXCITE
298 This enables the driver for the NAND flash device found on the
299 Basler eXcite Smart Camera. If built as a module, the driver
300 will be named excite_nandflash.
303 tristate "NAND support for OLPC CAFÉ chip"
306 select REED_SOLOMON_DEC16
308 Use NAND flash attached to the CAFÉ chip designed for the OLPC
311 config MTD_NAND_CS553X
312 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
315 The CS553x companion chips for the AMD Geode processor
316 include NAND flash controllers with built-in hardware ECC
317 capabilities; enabling this option will allow you to use
318 these. The driver will check the MSRs to verify that the
319 controller is enabled for NAND, and currently requires that
320 the controller be in MMIO mode.
322 If you say "m", the module will be called cs553x_nand.
324 config MTD_NAND_ATMEL
325 tristate "Support for NAND Flash / SmartMedia on AT91 and AVR32"
326 depends on ARCH_AT91 || AVR32
328 Enables support for NAND Flash / Smart Media Card interface
329 on Atmel AT91 and AVR32 processors.
331 prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
332 depends on MTD_NAND_ATMEL
334 config MTD_NAND_ATMEL_ECC_HW
336 depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32
338 Use hardware ECC instead of software ECC when the chip
341 The hardware ECC controller is capable of single bit error
342 correction and 2-bit random detection per page.
344 NB : hardware and software ECC schemes are incompatible.
345 If you switch from one to another, you'll have to erase your
350 config MTD_NAND_ATMEL_ECC_SOFT
355 NB : hardware and software ECC schemes are incompatible.
356 If you switch from one to another, you'll have to erase your
359 config MTD_NAND_ATMEL_ECC_NONE
360 bool "No ECC (testing only, DANGEROUS)"
361 depends on DEBUG_KERNEL
364 It's not a good idea and it should be reserved for testing
373 config MTD_NAND_PXA3xx
374 tristate "Support for NAND flash devices on PXA3xx"
375 depends on MTD_NAND && (PXA3xx || ARCH_MMP)
377 This enables the driver for the NAND flash device found on
380 config MTD_NAND_PXA3xx_BUILTIN
381 bool "Use builtin definitions for some NAND chips (deprecated)"
382 depends on MTD_NAND_PXA3xx
384 This enables builtin definitions for some NAND chips. This
385 is deprecated in favor of platform specific data.
387 config MTD_NAND_CM_X270
388 tristate "Support for NAND Flash on CM-X270 modules"
389 depends on MTD_NAND && MACH_ARMCORE
391 config MTD_NAND_PASEMI
392 tristate "NAND support for PA Semi PWRficient"
393 depends on MTD_NAND && PPC_PASEMI
395 Enables support for NAND Flash interface on PA Semi PWRficient
399 tristate "NAND Flash device on Toshiba Mobile IO Controller"
400 depends on MTD_NAND && MFD_TMIO
402 Support for NAND flash connected to a Toshiba Mobile IO
403 Controller in some PDAs, including the Sharp SL6000x.
405 config MTD_NAND_NANDSIM
406 tristate "Support for NAND Flash Simulator"
407 depends on MTD_PARTITIONS
409 The simulator may simulate various NAND flash chips for the
412 config MTD_NAND_PLATFORM
413 tristate "Support for generic platform NAND driver"
416 This implements a generic NAND driver for on-SOC platform
417 devices. You will need to provide platform-specific functions
421 tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
422 depends on MTD_NAND && USB
424 These two (and possibly other) Alauda-based cardreaders for
425 SmartMedia and xD allow raw flash access.
427 config MTD_NAND_ORION
428 tristate "NAND Flash support for Marvell Orion SoC"
429 depends on PLAT_ORION && MTD_NAND
431 This enables the NAND flash controller on Orion machines.
433 No board specific support is done by this driver, each board
434 must advertise a platform_device for the driver to attach.
436 config MTD_NAND_FSL_ELBC
437 tristate "NAND support for Freescale eLBC controllers"
438 depends on MTD_NAND && PPC_OF
440 Various Freescale chips, including the 8313, include a NAND Flash
441 Controller Module with built-in hardware ECC capabilities.
442 Enabling this option will enable you to use this to control
443 external NAND devices.
445 config MTD_NAND_FSL_UPM
446 tristate "Support for NAND on Freescale UPM"
447 depends on MTD_NAND && (PPC_83xx || PPC_85xx)
450 Enables support for NAND Flash chips wired onto Freescale PowerPC
451 processor localbus with User-Programmable Machine support.
454 tristate "MXC NAND support"
455 depends on ARCH_MX2 || ARCH_MX3
457 This enables the driver for the NAND flash controller on the
460 config MTD_NAND_NOMADIK
461 tristate "ST Nomadik 8815 NAND support"
462 depends on ARCH_NOMADIK
464 Driver for the NAND flash controller on the Nomadik, with ECC.
466 config MTD_NAND_SH_FLCTL
467 tristate "Support for NAND on Renesas SuperH FLCTL"
468 depends on MTD_NAND && SUPERH && CPU_SUBTYPE_SH7723
470 Several Renesas SuperH CPU has FLCTL. This option enables support
471 for NAND Flash using FLCTL. This driver support SH7723.
473 config MTD_NAND_DAVINCI
474 tristate "Support NAND on DaVinci SoC"
475 depends on ARCH_DAVINCI
477 Enable the driver for NAND flash chips on Texas Instruments
480 config MTD_NAND_TXX9NDFMC
481 tristate "NAND Flash support for TXx9 SoC"
482 depends on SOC_TX4938 || SOC_TX4939
484 This enables the NAND flash controller on the TXx9 SoCs.
486 config MTD_NAND_SOCRATES
487 tristate "Support for NAND on Socrates board"
488 depends on MTD_NAND && SOCRATES
490 Enables support for NAND Flash chips wired onto Socrates board.
492 config MTD_NAND_W90P910
493 tristate "Support for NAND on w90p910 evaluation board."
494 depends on ARCH_W90X900 && MTD_PARTITIONS
496 This enables the driver for the NAND Flash on evaluation board based