1 # drivers/mtd/nand/Kconfig
4 tristate "NAND Device Support"
8 This enables support for accessing all type of NAND flash
9 devices. For further information see
10 <http://www.linux-mtd.infradead.org/doc/nand.html>.
14 config MTD_NAND_VERIFY_WRITE
15 bool "Verify NAND page writes"
17 This adds an extra check when data is written to the flash. The
18 NAND flash device internally checks only bits transitioning
19 from 1 to 0. There is a rare possibility that even though the
20 device thinks the write was successful, a bit could have been
21 flipped accidentally due to device wear or something else.
23 config MTD_NAND_ECC_SMC
24 bool "NAND ECC Smart Media byte order"
27 Software ECC according to the Smart Media Specification.
28 The original Linux implementation had byte 0 and 1 swapped.
30 config MTD_NAND_MUSEUM_IDS
31 bool "Enable chip ids for obsolete ancient NAND devices"
35 Enable this option only when your board has first generation
36 NAND chips (page size 256 byte, erase size 4-8KiB). The IDs
37 of these chips were reused by later, larger chips.
39 config MTD_NAND_AUTCPU12
40 tristate "SmartMediaCard on autronix autcpu12 board"
41 depends on ARCH_AUTCPU12
43 This enables the driver for the autronix autcpu12 board to
44 access the SmartMediaCard.
46 config MTD_NAND_EDB7312
47 tristate "Support for Cirrus Logic EBD7312 evaluation board"
48 depends on ARCH_EDB7312
50 This enables the driver for the Cirrus Logic EBD7312 evaluation
51 board to access the onboard NAND Flash.
54 tristate "iPAQ H1900 flash"
55 depends on ARCH_PXA && MTD_PARTITIONS
57 This enables the driver for the iPAQ h1900 flash.
60 tristate "GPIO NAND Flash driver"
61 depends on GENERIC_GPIO && ARM
63 This enables a GPIO based NAND flash driver.
66 tristate "NAND Flash device on SPIA board"
69 If you had to ask, you don't have one. Say 'N'.
71 config MTD_NAND_AMS_DELTA
72 tristate "NAND Flash device on Amstrad E3"
73 depends on MACH_AMS_DELTA
75 Support for NAND flash on Amstrad E3 (Delta).
78 tristate "NAND Flash device on OMAP2 and OMAP3"
79 depends on ARM && MTD_NAND && (ARCH_OMAP2 || ARCH_OMAP3)
81 Support for NAND flash on Texas Instruments OMAP2 and OMAP3 platforms.
83 config MTD_NAND_OMAP_PREFETCH
84 bool "GPMC prefetch support for NAND Flash device"
85 depends on MTD_NAND && MTD_NAND_OMAP2
88 The NAND device can be accessed for Read/Write using GPMC PREFETCH engine
89 to improve the performance.
91 config MTD_NAND_OMAP_PREFETCH_DMA
92 depends on MTD_NAND_OMAP_PREFETCH
96 The GPMC PREFETCH engine can be configured eigther in MPU interrupt mode
97 or in DMA interrupt mode.
98 Say y for DMA mode or MPU mode will be used
100 config MTD_NAND_TS7250
101 tristate "NAND Flash device on TS-7250 board"
102 depends on MACH_TS72XX
104 Support for NAND flash on Technologic Systems TS-7250 platform.
109 config MTD_NAND_AU1550
110 tristate "Au1550/1200 NAND support"
111 depends on SOC_AU1200 || SOC_AU1550
113 This enables the driver for the NAND flash controller on the
114 AMD/Alchemy 1550 SOC.
116 config MTD_NAND_BF5XX
117 tristate "Blackfin on-chip NAND Flash Controller driver"
118 depends on (BF54x || BF52x) && MTD_NAND
120 This enables the Blackfin on-chip NAND flash controller
122 No board specific support is done by this driver, each board
123 must advertise a platform_device for the driver to attach.
125 This driver can also be built as a module. If so, the module
126 will be called bf5xx-nand.
128 config MTD_NAND_BF5XX_HWECC
129 bool "BF5XX NAND Hardware ECC"
131 depends on MTD_NAND_BF5XX
133 Enable the use of the BF5XX's internal ECC generator when
136 config MTD_NAND_BF5XX_BOOTROM_ECC
137 bool "Use Blackfin BootROM ECC Layout"
139 depends on MTD_NAND_BF5XX_HWECC
141 If you wish to modify NAND pages and allow the Blackfin on-chip
142 BootROM to boot from them, say Y here. This is only necessary
143 if you are booting U-Boot out of NAND and you wish to update
144 U-Boot from Linux' userspace. Otherwise, you should say N here.
148 config MTD_NAND_RTC_FROM4
149 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
150 depends on SH_SOLUTION_ENGINE
152 select REED_SOLOMON_DEC8
155 This enables the driver for the Renesas Technology AG-AND
156 flash interface board (FROM_BOARD4)
158 config MTD_NAND_PPCHAMELEONEVB
159 tristate "NAND Flash device on PPChameleonEVB board"
160 depends on PPCHAMELEONEVB && BROKEN
162 This enables the NAND flash driver on the PPChameleon EVB Board.
164 config MTD_NAND_S3C2410
165 tristate "NAND Flash support for Samsung S3C SoCs"
166 depends on ARCH_S3C2410 || ARCH_S3C64XX
168 This enables the NAND flash controller on the S3C24xx and S3C64xx
171 No board specific support is done by this driver, each board
172 must advertise a platform_device for the driver to attach.
174 config MTD_NAND_S3C2410_DEBUG
175 bool "Samsung S3C NAND driver debug"
176 depends on MTD_NAND_S3C2410
178 Enable debugging of the S3C NAND driver
180 config MTD_NAND_S3C2410_HWECC
181 bool "Samsung S3C NAND Hardware ECC"
182 depends on MTD_NAND_S3C2410
184 Enable the use of the controller's internal ECC generator when
185 using NAND. Early versions of the chips have had problems with
186 incorrect ECC generation, and if using these, the default of
187 software ECC is preferable.
190 tristate "NDFC NanD Flash Controller"
192 select MTD_NAND_ECC_SMC
194 NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
196 config MTD_NAND_S3C2410_CLKSTOP
197 bool "Samsung S3C NAND IDLE clock stop"
198 depends on MTD_NAND_S3C2410
201 Stop the clock to the NAND controller when there is no chip
202 selected to save power. This will mean there is a small delay
203 when the is NAND chip selected or released, but will save
204 approximately 5mA of power when there is nothing happening.
206 config MTD_NAND_DISKONCHIP
207 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
208 depends on EXPERIMENTAL
210 select REED_SOLOMON_DEC16
212 This is a reimplementation of M-Systems DiskOnChip 2000,
213 Millennium and Millennium Plus as a standard NAND device driver,
214 as opposed to the earlier self-contained MTD device drivers.
215 This should enable, among other things, proper JFFS2 operation on
218 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
219 bool "Advanced detection options for DiskOnChip"
220 depends on MTD_NAND_DISKONCHIP
222 This option allows you to specify nonstandard address at which to
223 probe for a DiskOnChip, or to change the detection options. You
224 are unlikely to need any of this unless you are using LinuxBIOS.
227 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
228 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
229 depends on MTD_NAND_DISKONCHIP
232 By default, the probe for DiskOnChip devices will look for a
233 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
234 This option allows you to specify a single address at which to probe
235 for the device, which is useful if you have other devices in that
236 range which get upset when they are probed.
238 (Note that on PowerPC, the normal probe will only check at
241 Normally, you should leave this set to zero, to allow the probe at
242 the normal addresses.
244 config MTD_NAND_DISKONCHIP_PROBE_HIGH
245 bool "Probe high addresses"
246 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
248 By default, the probe for DiskOnChip devices will look for a
249 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
250 This option changes to make it probe between 0xFFFC8000 and
251 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
252 useful to you. Say 'N'.
254 config MTD_NAND_DISKONCHIP_BBTWRITE
255 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
256 depends on MTD_NAND_DISKONCHIP
258 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
259 and 2000 TSOP/Alon), Linux reserves some space at the end of the
260 device for the Bad Block Table (BBT). If you have existing INFTL
261 data on your device (created by non-Linux tools such as M-Systems'
262 DOS drivers), your data might overlap the area Linux wants to use for
263 the BBT. If this is a concern for you, leave this option disabled and
264 Linux will not write BBT data into this area.
265 The downside of leaving this option disabled is that if bad blocks
266 are detected by Linux, they will not be recorded in the BBT, which
267 could cause future problems.
268 Once you enable this option, new filesystems (INFTL or others, created
269 in Linux or other operating systems) will not use the reserved area.
270 The only reason not to enable this option is to prevent damage to
271 preexisting filesystems.
272 Even if you leave this disabled, you can enable BBT writes at module
273 load time (assuming you build diskonchip as a module) with the module
274 parameter "inftl_bbt_write=1".
276 config MTD_NAND_SHARPSL
277 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
280 config MTD_NAND_BASLER_EXCITE
281 tristate "Support for NAND Flash on Basler eXcite"
282 depends on BASLER_EXCITE
284 This enables the driver for the NAND flash device found on the
285 Basler eXcite Smart Camera. If built as a module, the driver
286 will be named excite_nandflash.
289 tristate "NAND support for OLPC CAFÉ chip"
292 select REED_SOLOMON_DEC16
294 Use NAND flash attached to the CAFÉ chip designed for the OLPC
297 config MTD_NAND_CS553X
298 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
301 The CS553x companion chips for the AMD Geode processor
302 include NAND flash controllers with built-in hardware ECC
303 capabilities; enabling this option will allow you to use
304 these. The driver will check the MSRs to verify that the
305 controller is enabled for NAND, and currently requires that
306 the controller be in MMIO mode.
308 If you say "m", the module will be called cs553x_nand.
310 config MTD_NAND_ATMEL
311 tristate "Support for NAND Flash / SmartMedia on AT91 and AVR32"
312 depends on ARCH_AT91 || AVR32
314 Enables support for NAND Flash / Smart Media Card interface
315 on Atmel AT91 and AVR32 processors.
317 prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
318 depends on MTD_NAND_ATMEL
320 config MTD_NAND_ATMEL_ECC_HW
322 depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32
324 Use hardware ECC instead of software ECC when the chip
327 The hardware ECC controller is capable of single bit error
328 correction and 2-bit random detection per page.
330 NB : hardware and software ECC schemes are incompatible.
331 If you switch from one to another, you'll have to erase your
336 config MTD_NAND_ATMEL_ECC_SOFT
341 NB : hardware and software ECC schemes are incompatible.
342 If you switch from one to another, you'll have to erase your
345 config MTD_NAND_ATMEL_ECC_NONE
346 bool "No ECC (testing only, DANGEROUS)"
347 depends on DEBUG_KERNEL
350 It's not a good idea and it should be reserved for testing
359 config MTD_NAND_PXA3xx
360 tristate "Support for NAND flash devices on PXA3xx"
361 depends on MTD_NAND && PXA3xx
363 This enables the driver for the NAND flash device found on
366 config MTD_NAND_PXA3xx_BUILTIN
367 bool "Use builtin definitions for some NAND chips (deprecated)"
368 depends on MTD_NAND_PXA3xx
370 This enables builtin definitions for some NAND chips. This
371 is deprecated in favor of platform specific data.
373 config MTD_NAND_CM_X270
374 tristate "Support for NAND Flash on CM-X270 modules"
375 depends on MTD_NAND && MACH_ARMCORE
377 config MTD_NAND_PASEMI
378 tristate "NAND support for PA Semi PWRficient"
379 depends on MTD_NAND && PPC_PASEMI
381 Enables support for NAND Flash interface on PA Semi PWRficient
385 tristate "NAND Flash device on Toshiba Mobile IO Controller"
386 depends on MTD_NAND && MFD_TMIO
388 Support for NAND flash connected to a Toshiba Mobile IO
389 Controller in some PDAs, including the Sharp SL6000x.
391 config MTD_NAND_NANDSIM
392 tristate "Support for NAND Flash Simulator"
393 depends on MTD_PARTITIONS
395 The simulator may simulate various NAND flash chips for the
398 config MTD_NAND_PLATFORM
399 tristate "Support for generic platform NAND driver"
402 This implements a generic NAND driver for on-SOC platform
403 devices. You will need to provide platform-specific functions
407 tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
408 depends on MTD_NAND && USB
410 These two (and possibly other) Alauda-based cardreaders for
411 SmartMedia and xD allow raw flash access.
413 config MTD_NAND_ORION
414 tristate "NAND Flash support for Marvell Orion SoC"
415 depends on PLAT_ORION && MTD_NAND
417 This enables the NAND flash controller on Orion machines.
419 No board specific support is done by this driver, each board
420 must advertise a platform_device for the driver to attach.
422 config MTD_NAND_FSL_ELBC
423 tristate "NAND support for Freescale eLBC controllers"
424 depends on MTD_NAND && PPC_OF
426 Various Freescale chips, including the 8313, include a NAND Flash
427 Controller Module with built-in hardware ECC capabilities.
428 Enabling this option will enable you to use this to control
429 external NAND devices.
431 config MTD_NAND_FSL_UPM
432 tristate "Support for NAND on Freescale UPM"
433 depends on MTD_NAND && (PPC_83xx || PPC_85xx)
436 Enables support for NAND Flash chips wired onto Freescale PowerPC
437 processor localbus with User-Programmable Machine support.
440 tristate "MXC NAND support"
441 depends on ARCH_MX2 || ARCH_MX3
443 This enables the driver for the NAND flash controller on the
446 config MTD_NAND_NOMADIK
447 tristate "ST Nomadik 8815 NAND support"
448 depends on ARCH_NOMADIK
450 Driver for the NAND flash controller on the Nomadik, with ECC.
452 config MTD_NAND_SH_FLCTL
453 tristate "Support for NAND on Renesas SuperH FLCTL"
454 depends on MTD_NAND && SUPERH && CPU_SUBTYPE_SH7723
456 Several Renesas SuperH CPU has FLCTL. This option enables support
457 for NAND Flash using FLCTL. This driver support SH7723.
459 config MTD_NAND_DAVINCI
460 tristate "Support NAND on DaVinci SoC"
461 depends on ARCH_DAVINCI
463 Enable the driver for NAND flash chips on Texas Instruments
466 config MTD_NAND_TXX9NDFMC
467 tristate "NAND Flash support for TXx9 SoC"
468 depends on SOC_TX4938 || SOC_TX4939
470 This enables the NAND flash controller on the TXx9 SoCs.
472 config MTD_NAND_SOCRATES
473 tristate "Support for NAND on Socrates board"
474 depends on MTD_NAND && SOCRATES
476 Enables support for NAND Flash chips wired onto Socrates board.
478 config MTD_NAND_W90P910
479 tristate "Support for NAND on w90p910 evaluation board."
480 depends on ARCH_W90X900 && MTD_PARTITIONS
482 This enables the driver for the NAND Flash on evaluation board based