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.
32 config MTD_NAND_MUSEUM_IDS
33 bool "Enable chip ids for obsolete ancient NAND devices"
37 Enable this option only when your board has first generation
38 NAND chips (page size 256 byte, erase size 4-8KiB). The IDs
39 of these chips were reused by later, larger chips.
41 config MTD_NAND_AUTCPU12
42 tristate "SmartMediaCard on autronix autcpu12 board"
43 depends on ARCH_AUTCPU12
45 This enables the driver for the autronix autcpu12 board to
46 access the SmartMediaCard.
48 config MTD_NAND_EDB7312
49 tristate "Support for Cirrus Logic EBD7312 evaluation board"
50 depends on ARCH_EDB7312
52 This enables the driver for the Cirrus Logic EBD7312 evaluation
53 board to access the onboard NAND Flash.
56 tristate "iPAQ H1900 flash"
57 depends on ARCH_PXA && MTD_PARTITIONS
59 This enables the driver for the iPAQ h1900 flash.
62 tristate "GPIO NAND Flash driver"
63 depends on GENERIC_GPIO && ARM
65 This enables a GPIO based NAND flash driver.
68 tristate "NAND Flash device on SPIA board"
71 If you had to ask, you don't have one. Say 'N'.
73 config MTD_NAND_AMS_DELTA
74 tristate "NAND Flash device on Amstrad E3"
75 depends on MACH_AMS_DELTA
77 Support for NAND flash on Amstrad E3 (Delta).
80 tristate "NAND Flash device on OMAP2 and OMAP3"
81 depends on ARM && MTD_NAND && (ARCH_OMAP2 || ARCH_OMAP3)
83 Support for NAND flash on Texas Instruments OMAP2 and OMAP3 platforms.
85 config MTD_NAND_OMAP_PREFETCH
86 bool "GPMC prefetch support for NAND Flash device"
87 depends on MTD_NAND && MTD_NAND_OMAP2
90 The NAND device can be accessed for Read/Write using GPMC PREFETCH engine
91 to improve the performance.
93 config MTD_NAND_OMAP_PREFETCH_DMA
94 depends on MTD_NAND_OMAP_PREFETCH
98 The GPMC PREFETCH engine can be configured eigther in MPU interrupt mode
99 or in DMA interrupt mode.
100 Say y for DMA mode or MPU mode will be used
105 config MTD_NAND_RICOH
106 tristate "Ricoh xD card reader"
110 Enable support for Ricoh R5C852 xD card reader
111 You also need to enable ether
112 NAND SSFDC (SmartMedia) read only translation layer' or new
113 expermental, readwrite
114 'SmartMedia/xD new translation layer'
116 config MTD_NAND_AU1550
117 tristate "Au1550/1200 NAND support"
118 depends on SOC_AU1200 || SOC_AU1550
120 This enables the driver for the NAND flash controller on the
121 AMD/Alchemy 1550 SOC.
123 config MTD_NAND_BF5XX
124 tristate "Blackfin on-chip NAND Flash Controller driver"
125 depends on (BF54x || BF52x) && MTD_NAND
127 This enables the Blackfin on-chip NAND flash controller
129 No board specific support is done by this driver, each board
130 must advertise a platform_device for the driver to attach.
132 This driver can also be built as a module. If so, the module
133 will be called bf5xx-nand.
135 config MTD_NAND_BF5XX_HWECC
136 bool "BF5XX NAND Hardware ECC"
138 depends on MTD_NAND_BF5XX
140 Enable the use of the BF5XX's internal ECC generator when
143 config MTD_NAND_BF5XX_BOOTROM_ECC
144 bool "Use Blackfin BootROM ECC Layout"
146 depends on MTD_NAND_BF5XX_HWECC
148 If you wish to modify NAND pages and allow the Blackfin on-chip
149 BootROM to boot from them, say Y here. This is only necessary
150 if you are booting U-Boot out of NAND and you wish to update
151 U-Boot from Linux' userspace. Otherwise, you should say N here.
155 config MTD_NAND_RTC_FROM4
156 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
157 depends on SH_SOLUTION_ENGINE
159 select REED_SOLOMON_DEC8
162 This enables the driver for the Renesas Technology AG-AND
163 flash interface board (FROM_BOARD4)
165 config MTD_NAND_PPCHAMELEONEVB
166 tristate "NAND Flash device on PPChameleonEVB board"
167 depends on PPCHAMELEONEVB && BROKEN
169 This enables the NAND flash driver on the PPChameleon EVB Board.
171 config MTD_NAND_S3C2410
172 tristate "NAND Flash support for Samsung S3C SoCs"
173 depends on ARCH_S3C2410 || ARCH_S3C64XX
175 This enables the NAND flash controller on the S3C24xx and S3C64xx
178 No board specific support is done by this driver, each board
179 must advertise a platform_device for the driver to attach.
181 config MTD_NAND_S3C2410_DEBUG
182 bool "Samsung S3C NAND driver debug"
183 depends on MTD_NAND_S3C2410
185 Enable debugging of the S3C NAND driver
187 config MTD_NAND_S3C2410_HWECC
188 bool "Samsung S3C NAND Hardware ECC"
189 depends on MTD_NAND_S3C2410
191 Enable the use of the controller's internal ECC generator when
192 using NAND. Early versions of the chips have had problems with
193 incorrect ECC generation, and if using these, the default of
194 software ECC is preferable.
197 tristate "NDFC NanD Flash Controller"
199 select MTD_NAND_ECC_SMC
201 NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
203 config MTD_NAND_S3C2410_CLKSTOP
204 bool "Samsung S3C NAND IDLE clock stop"
205 depends on MTD_NAND_S3C2410
208 Stop the clock to the NAND controller when there is no chip
209 selected to save power. This will mean there is a small delay
210 when the is NAND chip selected or released, but will save
211 approximately 5mA of power when there is nothing happening.
213 config MTD_NAND_BCM_UMI
214 tristate "NAND Flash support for BCM Reference Boards"
215 depends on ARCH_BCMRING && MTD_NAND
217 This enables the NAND flash controller on the BCM UMI block.
219 No board specfic support is done by this driver, each board
220 must advertise a platform_device for the driver to attach.
222 config MTD_NAND_BCM_UMI_HWCS
223 bool "BCM UMI NAND Hardware CS"
224 depends on MTD_NAND_BCM_UMI
226 Enable the use of the BCM UMI block's internal CS using NAND.
227 This should only be used if you know the external NAND CS can toggle.
229 config MTD_NAND_DISKONCHIP
230 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
231 depends on EXPERIMENTAL
233 select REED_SOLOMON_DEC16
235 This is a reimplementation of M-Systems DiskOnChip 2000,
236 Millennium and Millennium Plus as a standard NAND device driver,
237 as opposed to the earlier self-contained MTD device drivers.
238 This should enable, among other things, proper JFFS2 operation on
241 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
242 bool "Advanced detection options for DiskOnChip"
243 depends on MTD_NAND_DISKONCHIP
245 This option allows you to specify nonstandard address at which to
246 probe for a DiskOnChip, or to change the detection options. You
247 are unlikely to need any of this unless you are using LinuxBIOS.
250 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
251 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
252 depends on MTD_NAND_DISKONCHIP
255 By default, the probe for DiskOnChip devices will look for a
256 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
257 This option allows you to specify a single address at which to probe
258 for the device, which is useful if you have other devices in that
259 range which get upset when they are probed.
261 (Note that on PowerPC, the normal probe will only check at
264 Normally, you should leave this set to zero, to allow the probe at
265 the normal addresses.
267 config MTD_NAND_DISKONCHIP_PROBE_HIGH
268 bool "Probe high addresses"
269 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
271 By default, the probe for DiskOnChip devices will look for a
272 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
273 This option changes to make it probe between 0xFFFC8000 and
274 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
275 useful to you. Say 'N'.
277 config MTD_NAND_DISKONCHIP_BBTWRITE
278 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
279 depends on MTD_NAND_DISKONCHIP
281 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
282 and 2000 TSOP/Alon), Linux reserves some space at the end of the
283 device for the Bad Block Table (BBT). If you have existing INFTL
284 data on your device (created by non-Linux tools such as M-Systems'
285 DOS drivers), your data might overlap the area Linux wants to use for
286 the BBT. If this is a concern for you, leave this option disabled and
287 Linux will not write BBT data into this area.
288 The downside of leaving this option disabled is that if bad blocks
289 are detected by Linux, they will not be recorded in the BBT, which
290 could cause future problems.
291 Once you enable this option, new filesystems (INFTL or others, created
292 in Linux or other operating systems) will not use the reserved area.
293 The only reason not to enable this option is to prevent damage to
294 preexisting filesystems.
295 Even if you leave this disabled, you can enable BBT writes at module
296 load time (assuming you build diskonchip as a module) with the module
297 parameter "inftl_bbt_write=1".
299 config MTD_NAND_SHARPSL
300 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
304 tristate "NAND support for OLPC CAFÉ chip"
307 select REED_SOLOMON_DEC16
309 Use NAND flash attached to the CAFÉ chip designed for the OLPC
312 config MTD_NAND_CS553X
313 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
316 The CS553x companion chips for the AMD Geode processor
317 include NAND flash controllers with built-in hardware ECC
318 capabilities; enabling this option will allow you to use
319 these. The driver will check the MSRs to verify that the
320 controller is enabled for NAND, and currently requires that
321 the controller be in MMIO mode.
323 If you say "m", the module will be called cs553x_nand.
325 config MTD_NAND_ATMEL
326 tristate "Support for NAND Flash / SmartMedia on AT91 and AVR32"
327 depends on ARCH_AT91 || AVR32
329 Enables support for NAND Flash / Smart Media Card interface
330 on Atmel AT91 and AVR32 processors.
332 prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
333 depends on MTD_NAND_ATMEL
335 config MTD_NAND_ATMEL_ECC_HW
337 depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32
339 Use hardware ECC instead of software ECC when the chip
342 The hardware ECC controller is capable of single bit error
343 correction and 2-bit random detection per page.
345 NB : hardware and software ECC schemes are incompatible.
346 If you switch from one to another, you'll have to erase your
351 config MTD_NAND_ATMEL_ECC_SOFT
356 NB : hardware and software ECC schemes are incompatible.
357 If you switch from one to another, you'll have to erase your
360 config MTD_NAND_ATMEL_ECC_NONE
361 bool "No ECC (testing only, DANGEROUS)"
362 depends on DEBUG_KERNEL
365 It's not a good idea and it should be reserved for testing
374 config MTD_NAND_PXA3xx
375 tristate "Support for NAND flash devices on PXA3xx"
376 depends on MTD_NAND && (PXA3xx || ARCH_MMP)
378 This enables the driver for the NAND flash device found on
381 config MTD_NAND_PXA3xx_BUILTIN
382 bool "Use builtin definitions for some NAND chips (deprecated)"
383 depends on MTD_NAND_PXA3xx
385 This enables builtin definitions for some NAND chips. This
386 is deprecated in favor of platform specific data.
388 config MTD_NAND_CM_X270
389 tristate "Support for NAND Flash on CM-X270 modules"
390 depends on MTD_NAND && MACH_ARMCORE
392 config MTD_NAND_PASEMI
393 tristate "NAND support for PA Semi PWRficient"
394 depends on MTD_NAND && PPC_PASEMI
396 Enables support for NAND Flash interface on PA Semi PWRficient
400 tristate "NAND Flash device on Toshiba Mobile IO Controller"
401 depends on MTD_NAND && MFD_TMIO
403 Support for NAND flash connected to a Toshiba Mobile IO
404 Controller in some PDAs, including the Sharp SL6000x.
406 config MTD_NAND_NANDSIM
407 tristate "Support for NAND Flash Simulator"
408 depends on MTD_PARTITIONS
410 The simulator may simulate various NAND flash chips for the
413 config MTD_NAND_PLATFORM
414 tristate "Support for generic platform NAND driver"
417 This implements a generic NAND driver for on-SOC platform
418 devices. You will need to provide platform-specific functions
422 tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
423 depends on MTD_NAND && USB
425 These two (and possibly other) Alauda-based cardreaders for
426 SmartMedia and xD allow raw flash access.
428 config MTD_NAND_ORION
429 tristate "NAND Flash support for Marvell Orion SoC"
430 depends on PLAT_ORION && MTD_NAND
432 This enables the NAND flash controller on Orion machines.
434 No board specific support is done by this driver, each board
435 must advertise a platform_device for the driver to attach.
437 config MTD_NAND_FSL_ELBC
438 tristate "NAND support for Freescale eLBC controllers"
439 depends on MTD_NAND && PPC_OF
441 Various Freescale chips, including the 8313, include a NAND Flash
442 Controller Module with built-in hardware ECC capabilities.
443 Enabling this option will enable you to use this to control
444 external NAND devices.
446 config MTD_NAND_FSL_UPM
447 tristate "Support for NAND on Freescale UPM"
448 depends on MTD_NAND && (PPC_83xx || PPC_85xx)
451 Enables support for NAND Flash chips wired onto Freescale PowerPC
452 processor localbus with User-Programmable Machine support.
454 config MTD_NAND_MPC5121_NFC
455 tristate "MPC5121 built-in NAND Flash Controller support"
456 depends on PPC_MPC512x
458 This enables the driver for the NAND flash controller on the
462 tristate "MXC NAND support"
463 depends on ARCH_MX2 || ARCH_MX3
465 This enables the driver for the NAND flash controller on the
468 config MTD_NAND_NOMADIK
469 tristate "ST Nomadik 8815 NAND support"
470 depends on ARCH_NOMADIK
472 Driver for the NAND flash controller on the Nomadik, with ECC.
474 config MTD_NAND_SH_FLCTL
475 tristate "Support for NAND on Renesas SuperH FLCTL"
476 depends on MTD_NAND && SUPERH && CPU_SUBTYPE_SH7723
478 Several Renesas SuperH CPU has FLCTL. This option enables support
479 for NAND Flash using FLCTL. This driver support SH7723.
481 config MTD_NAND_DAVINCI
482 tristate "Support NAND on DaVinci SoC"
483 depends on ARCH_DAVINCI
485 Enable the driver for NAND flash chips on Texas Instruments
488 config MTD_NAND_TXX9NDFMC
489 tristate "NAND Flash support for TXx9 SoC"
490 depends on SOC_TX4938 || SOC_TX4939
492 This enables the NAND flash controller on the TXx9 SoCs.
494 config MTD_NAND_SOCRATES
495 tristate "Support for NAND on Socrates board"
496 depends on MTD_NAND && SOCRATES
498 Enables support for NAND Flash chips wired onto Socrates board.
500 config MTD_NAND_NUC900
501 tristate "Support for NAND on Nuvoton NUC9xx/w90p910 evaluation boards."
502 depends on ARCH_W90X900 && MTD_PARTITIONS
504 This enables the driver for the NAND Flash on evaluation board based