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_AU1550
106 tristate "Au1550/1200 NAND support"
107 depends on SOC_AU1200 || SOC_AU1550
109 This enables the driver for the NAND flash controller on the
110 AMD/Alchemy 1550 SOC.
112 config MTD_NAND_BF5XX
113 tristate "Blackfin on-chip NAND Flash Controller driver"
114 depends on (BF54x || BF52x) && MTD_NAND
116 This enables the Blackfin on-chip NAND flash controller
118 No board specific support is done by this driver, each board
119 must advertise a platform_device for the driver to attach.
121 This driver can also be built as a module. If so, the module
122 will be called bf5xx-nand.
124 config MTD_NAND_BF5XX_HWECC
125 bool "BF5XX NAND Hardware ECC"
127 depends on MTD_NAND_BF5XX
129 Enable the use of the BF5XX's internal ECC generator when
132 config MTD_NAND_BF5XX_BOOTROM_ECC
133 bool "Use Blackfin BootROM ECC Layout"
135 depends on MTD_NAND_BF5XX_HWECC
137 If you wish to modify NAND pages and allow the Blackfin on-chip
138 BootROM to boot from them, say Y here. This is only necessary
139 if you are booting U-Boot out of NAND and you wish to update
140 U-Boot from Linux' userspace. Otherwise, you should say N here.
144 config MTD_NAND_RTC_FROM4
145 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
146 depends on SH_SOLUTION_ENGINE
148 select REED_SOLOMON_DEC8
151 This enables the driver for the Renesas Technology AG-AND
152 flash interface board (FROM_BOARD4)
154 config MTD_NAND_PPCHAMELEONEVB
155 tristate "NAND Flash device on PPChameleonEVB board"
156 depends on PPCHAMELEONEVB && BROKEN
158 This enables the NAND flash driver on the PPChameleon EVB Board.
160 config MTD_NAND_S3C2410
161 tristate "NAND Flash support for Samsung S3C SoCs"
162 depends on ARCH_S3C2410 || ARCH_S3C64XX
164 This enables the NAND flash controller on the S3C24xx and S3C64xx
167 No board specific support is done by this driver, each board
168 must advertise a platform_device for the driver to attach.
170 config MTD_NAND_S3C2410_DEBUG
171 bool "Samsung S3C NAND driver debug"
172 depends on MTD_NAND_S3C2410
174 Enable debugging of the S3C NAND driver
176 config MTD_NAND_S3C2410_HWECC
177 bool "Samsung S3C NAND Hardware ECC"
178 depends on MTD_NAND_S3C2410
180 Enable the use of the controller's internal ECC generator when
181 using NAND. Early versions of the chips have had problems with
182 incorrect ECC generation, and if using these, the default of
183 software ECC is preferable.
186 tristate "NDFC NanD Flash Controller"
188 select MTD_NAND_ECC_SMC
190 NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
192 config MTD_NAND_S3C2410_CLKSTOP
193 bool "Samsung S3C NAND IDLE clock stop"
194 depends on MTD_NAND_S3C2410
197 Stop the clock to the NAND controller when there is no chip
198 selected to save power. This will mean there is a small delay
199 when the is NAND chip selected or released, but will save
200 approximately 5mA of power when there is nothing happening.
202 config MTD_NAND_BCM_UMI
203 tristate "NAND Flash support for BCM Reference Boards"
204 depends on ARCH_BCMRING && MTD_NAND
206 This enables the NAND flash controller on the BCM UMI block.
208 No board specfic support is done by this driver, each board
209 must advertise a platform_device for the driver to attach.
211 config MTD_NAND_BCM_UMI_HWCS
212 bool "BCM UMI NAND Hardware CS"
213 depends on MTD_NAND_BCM_UMI
215 Enable the use of the BCM UMI block's internal CS using NAND.
216 This should only be used if you know the external NAND CS can toggle.
218 config MTD_NAND_DISKONCHIP
219 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
220 depends on EXPERIMENTAL
222 select REED_SOLOMON_DEC16
224 This is a reimplementation of M-Systems DiskOnChip 2000,
225 Millennium and Millennium Plus as a standard NAND device driver,
226 as opposed to the earlier self-contained MTD device drivers.
227 This should enable, among other things, proper JFFS2 operation on
230 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
231 bool "Advanced detection options for DiskOnChip"
232 depends on MTD_NAND_DISKONCHIP
234 This option allows you to specify nonstandard address at which to
235 probe for a DiskOnChip, or to change the detection options. You
236 are unlikely to need any of this unless you are using LinuxBIOS.
239 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
240 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
241 depends on MTD_NAND_DISKONCHIP
244 By default, the probe for DiskOnChip devices will look for a
245 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
246 This option allows you to specify a single address at which to probe
247 for the device, which is useful if you have other devices in that
248 range which get upset when they are probed.
250 (Note that on PowerPC, the normal probe will only check at
253 Normally, you should leave this set to zero, to allow the probe at
254 the normal addresses.
256 config MTD_NAND_DISKONCHIP_PROBE_HIGH
257 bool "Probe high addresses"
258 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
260 By default, the probe for DiskOnChip devices will look for a
261 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
262 This option changes to make it probe between 0xFFFC8000 and
263 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
264 useful to you. Say 'N'.
266 config MTD_NAND_DISKONCHIP_BBTWRITE
267 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
268 depends on MTD_NAND_DISKONCHIP
270 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
271 and 2000 TSOP/Alon), Linux reserves some space at the end of the
272 device for the Bad Block Table (BBT). If you have existing INFTL
273 data on your device (created by non-Linux tools such as M-Systems'
274 DOS drivers), your data might overlap the area Linux wants to use for
275 the BBT. If this is a concern for you, leave this option disabled and
276 Linux will not write BBT data into this area.
277 The downside of leaving this option disabled is that if bad blocks
278 are detected by Linux, they will not be recorded in the BBT, which
279 could cause future problems.
280 Once you enable this option, new filesystems (INFTL or others, created
281 in Linux or other operating systems) will not use the reserved area.
282 The only reason not to enable this option is to prevent damage to
283 preexisting filesystems.
284 Even if you leave this disabled, you can enable BBT writes at module
285 load time (assuming you build diskonchip as a module) with the module
286 parameter "inftl_bbt_write=1".
288 config MTD_NAND_SHARPSL
289 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
293 tristate "NAND support for OLPC CAFÉ chip"
296 select REED_SOLOMON_DEC16
298 Use NAND flash attached to the CAFÉ chip designed for the OLPC
301 config MTD_NAND_CS553X
302 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
305 The CS553x companion chips for the AMD Geode processor
306 include NAND flash controllers with built-in hardware ECC
307 capabilities; enabling this option will allow you to use
308 these. The driver will check the MSRs to verify that the
309 controller is enabled for NAND, and currently requires that
310 the controller be in MMIO mode.
312 If you say "m", the module will be called cs553x_nand.
314 config MTD_NAND_ATMEL
315 tristate "Support for NAND Flash / SmartMedia on AT91 and AVR32"
316 depends on ARCH_AT91 || AVR32
318 Enables support for NAND Flash / Smart Media Card interface
319 on Atmel AT91 and AVR32 processors.
321 prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
322 depends on MTD_NAND_ATMEL
324 config MTD_NAND_ATMEL_ECC_HW
326 depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32
328 Use hardware ECC instead of software ECC when the chip
331 The hardware ECC controller is capable of single bit error
332 correction and 2-bit random detection per page.
334 NB : hardware and software ECC schemes are incompatible.
335 If you switch from one to another, you'll have to erase your
340 config MTD_NAND_ATMEL_ECC_SOFT
345 NB : hardware and software ECC schemes are incompatible.
346 If you switch from one to another, you'll have to erase your
349 config MTD_NAND_ATMEL_ECC_NONE
350 bool "No ECC (testing only, DANGEROUS)"
351 depends on DEBUG_KERNEL
354 It's not a good idea and it should be reserved for testing
363 config MTD_NAND_PXA3xx
364 tristate "Support for NAND flash devices on PXA3xx"
365 depends on MTD_NAND && (PXA3xx || ARCH_MMP)
367 This enables the driver for the NAND flash device found on
370 config MTD_NAND_PXA3xx_BUILTIN
371 bool "Use builtin definitions for some NAND chips (deprecated)"
372 depends on MTD_NAND_PXA3xx
374 This enables builtin definitions for some NAND chips. This
375 is deprecated in favor of platform specific data.
377 config MTD_NAND_CM_X270
378 tristate "Support for NAND Flash on CM-X270 modules"
379 depends on MTD_NAND && MACH_ARMCORE
381 config MTD_NAND_PASEMI
382 tristate "NAND support for PA Semi PWRficient"
383 depends on MTD_NAND && PPC_PASEMI
385 Enables support for NAND Flash interface on PA Semi PWRficient
389 tristate "NAND Flash device on Toshiba Mobile IO Controller"
390 depends on MTD_NAND && MFD_TMIO
392 Support for NAND flash connected to a Toshiba Mobile IO
393 Controller in some PDAs, including the Sharp SL6000x.
395 config MTD_NAND_NANDSIM
396 tristate "Support for NAND Flash Simulator"
397 depends on MTD_PARTITIONS
399 The simulator may simulate various NAND flash chips for the
402 config MTD_NAND_PLATFORM
403 tristate "Support for generic platform NAND driver"
406 This implements a generic NAND driver for on-SOC platform
407 devices. You will need to provide platform-specific functions
411 tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
412 depends on MTD_NAND && USB
414 These two (and possibly other) Alauda-based cardreaders for
415 SmartMedia and xD allow raw flash access.
417 config MTD_NAND_ORION
418 tristate "NAND Flash support for Marvell Orion SoC"
419 depends on PLAT_ORION && MTD_NAND
421 This enables the NAND flash controller on Orion machines.
423 No board specific support is done by this driver, each board
424 must advertise a platform_device for the driver to attach.
426 config MTD_NAND_FSL_ELBC
427 tristate "NAND support for Freescale eLBC controllers"
428 depends on MTD_NAND && PPC_OF
430 Various Freescale chips, including the 8313, include a NAND Flash
431 Controller Module with built-in hardware ECC capabilities.
432 Enabling this option will enable you to use this to control
433 external NAND devices.
435 config MTD_NAND_FSL_UPM
436 tristate "Support for NAND on Freescale UPM"
437 depends on MTD_NAND && (PPC_83xx || PPC_85xx)
440 Enables support for NAND Flash chips wired onto Freescale PowerPC
441 processor localbus with User-Programmable Machine support.
443 config MTD_NAND_MPC5121_NFC
444 tristate "MPC5121 built-in NAND Flash Controller support"
445 depends on PPC_MPC512x
447 This enables the driver for the NAND flash controller on the
451 tristate "MXC NAND support"
452 depends on ARCH_MX2 || ARCH_MX3
454 This enables the driver for the NAND flash controller on the
457 config MTD_NAND_NOMADIK
458 tristate "ST Nomadik 8815 NAND support"
459 depends on ARCH_NOMADIK
461 Driver for the NAND flash controller on the Nomadik, with ECC.
463 config MTD_NAND_SH_FLCTL
464 tristate "Support for NAND on Renesas SuperH FLCTL"
465 depends on MTD_NAND && SUPERH && CPU_SUBTYPE_SH7723
467 Several Renesas SuperH CPU has FLCTL. This option enables support
468 for NAND Flash using FLCTL. This driver support SH7723.
470 config MTD_NAND_DAVINCI
471 tristate "Support NAND on DaVinci SoC"
472 depends on ARCH_DAVINCI
474 Enable the driver for NAND flash chips on Texas Instruments
477 config MTD_NAND_TXX9NDFMC
478 tristate "NAND Flash support for TXx9 SoC"
479 depends on SOC_TX4938 || SOC_TX4939
481 This enables the NAND flash controller on the TXx9 SoCs.
483 config MTD_NAND_SOCRATES
484 tristate "Support for NAND on Socrates board"
485 depends on MTD_NAND && SOCRATES
487 Enables support for NAND Flash chips wired onto Socrates board.
489 config MTD_NAND_NUC900
490 tristate "Support for NAND on Nuvoton NUC9xx/w90p910 evaluation boards."
491 depends on ARCH_W90X900 && MTD_PARTITIONS
493 This enables the driver for the NAND Flash on evaluation board based