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"
111 Enable support for Ricoh R5C852 xD card reader
112 You also need to enable ether
113 NAND SSFDC (SmartMedia) read only translation layer' or new
114 expermental, readwrite
115 'SmartMedia/xD new translation layer'
117 config MTD_NAND_AU1550
118 tristate "Au1550/1200 NAND support"
119 depends on SOC_AU1200 || SOC_AU1550
121 This enables the driver for the NAND flash controller on the
122 AMD/Alchemy 1550 SOC.
124 config MTD_NAND_BF5XX
125 tristate "Blackfin on-chip NAND Flash Controller driver"
126 depends on (BF54x || BF52x) && MTD_NAND
128 This enables the Blackfin on-chip NAND flash controller
130 No board specific support is done by this driver, each board
131 must advertise a platform_device for the driver to attach.
133 This driver can also be built as a module. If so, the module
134 will be called bf5xx-nand.
136 config MTD_NAND_BF5XX_HWECC
137 bool "BF5XX NAND Hardware ECC"
139 depends on MTD_NAND_BF5XX
141 Enable the use of the BF5XX's internal ECC generator when
144 config MTD_NAND_BF5XX_BOOTROM_ECC
145 bool "Use Blackfin BootROM ECC Layout"
147 depends on MTD_NAND_BF5XX_HWECC
149 If you wish to modify NAND pages and allow the Blackfin on-chip
150 BootROM to boot from them, say Y here. This is only necessary
151 if you are booting U-Boot out of NAND and you wish to update
152 U-Boot from Linux' userspace. Otherwise, you should say N here.
156 config MTD_NAND_RTC_FROM4
157 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
158 depends on SH_SOLUTION_ENGINE
160 select REED_SOLOMON_DEC8
163 This enables the driver for the Renesas Technology AG-AND
164 flash interface board (FROM_BOARD4)
166 config MTD_NAND_PPCHAMELEONEVB
167 tristate "NAND Flash device on PPChameleonEVB board"
168 depends on PPCHAMELEONEVB && BROKEN
170 This enables the NAND flash driver on the PPChameleon EVB Board.
172 config MTD_NAND_S3C2410
173 tristate "NAND Flash support for Samsung S3C SoCs"
174 depends on ARCH_S3C2410 || ARCH_S3C64XX
176 This enables the NAND flash controller on the S3C24xx and S3C64xx
179 No board specific support is done by this driver, each board
180 must advertise a platform_device for the driver to attach.
182 config MTD_NAND_S3C2410_DEBUG
183 bool "Samsung S3C NAND driver debug"
184 depends on MTD_NAND_S3C2410
186 Enable debugging of the S3C NAND driver
188 config MTD_NAND_S3C2410_HWECC
189 bool "Samsung S3C NAND Hardware ECC"
190 depends on MTD_NAND_S3C2410
192 Enable the use of the controller's internal ECC generator when
193 using NAND. Early versions of the chips have had problems with
194 incorrect ECC generation, and if using these, the default of
195 software ECC is preferable.
198 tristate "NDFC NanD Flash Controller"
200 select MTD_NAND_ECC_SMC
202 NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
204 config MTD_NAND_S3C2410_CLKSTOP
205 bool "Samsung S3C NAND IDLE clock stop"
206 depends on MTD_NAND_S3C2410
209 Stop the clock to the NAND controller when there is no chip
210 selected to save power. This will mean there is a small delay
211 when the is NAND chip selected or released, but will save
212 approximately 5mA of power when there is nothing happening.
214 config MTD_NAND_BCM_UMI
215 tristate "NAND Flash support for BCM Reference Boards"
216 depends on ARCH_BCMRING && MTD_NAND
218 This enables the NAND flash controller on the BCM UMI block.
220 No board specfic support is done by this driver, each board
221 must advertise a platform_device for the driver to attach.
223 config MTD_NAND_BCM_UMI_HWCS
224 bool "BCM UMI NAND Hardware CS"
225 depends on MTD_NAND_BCM_UMI
227 Enable the use of the BCM UMI block's internal CS using NAND.
228 This should only be used if you know the external NAND CS can toggle.
230 config MTD_NAND_DISKONCHIP
231 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
232 depends on EXPERIMENTAL
234 select REED_SOLOMON_DEC16
236 This is a reimplementation of M-Systems DiskOnChip 2000,
237 Millennium and Millennium Plus as a standard NAND device driver,
238 as opposed to the earlier self-contained MTD device drivers.
239 This should enable, among other things, proper JFFS2 operation on
242 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
243 bool "Advanced detection options for DiskOnChip"
244 depends on MTD_NAND_DISKONCHIP
246 This option allows you to specify nonstandard address at which to
247 probe for a DiskOnChip, or to change the detection options. You
248 are unlikely to need any of this unless you are using LinuxBIOS.
251 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
252 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
253 depends on MTD_NAND_DISKONCHIP
256 By default, the probe for DiskOnChip devices will look for a
257 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
258 This option allows you to specify a single address at which to probe
259 for the device, which is useful if you have other devices in that
260 range which get upset when they are probed.
262 (Note that on PowerPC, the normal probe will only check at
265 Normally, you should leave this set to zero, to allow the probe at
266 the normal addresses.
268 config MTD_NAND_DISKONCHIP_PROBE_HIGH
269 bool "Probe high addresses"
270 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
272 By default, the probe for DiskOnChip devices will look for a
273 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
274 This option changes to make it probe between 0xFFFC8000 and
275 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
276 useful to you. Say 'N'.
278 config MTD_NAND_DISKONCHIP_BBTWRITE
279 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
280 depends on MTD_NAND_DISKONCHIP
282 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
283 and 2000 TSOP/Alon), Linux reserves some space at the end of the
284 device for the Bad Block Table (BBT). If you have existing INFTL
285 data on your device (created by non-Linux tools such as M-Systems'
286 DOS drivers), your data might overlap the area Linux wants to use for
287 the BBT. If this is a concern for you, leave this option disabled and
288 Linux will not write BBT data into this area.
289 The downside of leaving this option disabled is that if bad blocks
290 are detected by Linux, they will not be recorded in the BBT, which
291 could cause future problems.
292 Once you enable this option, new filesystems (INFTL or others, created
293 in Linux or other operating systems) will not use the reserved area.
294 The only reason not to enable this option is to prevent damage to
295 preexisting filesystems.
296 Even if you leave this disabled, you can enable BBT writes at module
297 load time (assuming you build diskonchip as a module) with the module
298 parameter "inftl_bbt_write=1".
300 config MTD_NAND_SHARPSL
301 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
305 tristate "NAND support for OLPC CAFÉ chip"
308 select REED_SOLOMON_DEC16
310 Use NAND flash attached to the CAFÉ chip designed for the OLPC
313 config MTD_NAND_CS553X
314 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
317 The CS553x companion chips for the AMD Geode processor
318 include NAND flash controllers with built-in hardware ECC
319 capabilities; enabling this option will allow you to use
320 these. The driver will check the MSRs to verify that the
321 controller is enabled for NAND, and currently requires that
322 the controller be in MMIO mode.
324 If you say "m", the module will be called cs553x_nand.
326 config MTD_NAND_ATMEL
327 tristate "Support for NAND Flash / SmartMedia on AT91 and AVR32"
328 depends on ARCH_AT91 || AVR32
330 Enables support for NAND Flash / Smart Media Card interface
331 on Atmel AT91 and AVR32 processors.
333 prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
334 depends on MTD_NAND_ATMEL
336 config MTD_NAND_ATMEL_ECC_HW
338 depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32
340 Use hardware ECC instead of software ECC when the chip
343 The hardware ECC controller is capable of single bit error
344 correction and 2-bit random detection per page.
346 NB : hardware and software ECC schemes are incompatible.
347 If you switch from one to another, you'll have to erase your
352 config MTD_NAND_ATMEL_ECC_SOFT
357 NB : hardware and software ECC schemes are incompatible.
358 If you switch from one to another, you'll have to erase your
361 config MTD_NAND_ATMEL_ECC_NONE
362 bool "No ECC (testing only, DANGEROUS)"
363 depends on DEBUG_KERNEL
366 It's not a good idea and it should be reserved for testing
375 config MTD_NAND_PXA3xx
376 tristate "Support for NAND flash devices on PXA3xx"
377 depends on MTD_NAND && (PXA3xx || ARCH_MMP)
379 This enables the driver for the NAND flash device found on
382 config MTD_NAND_PXA3xx_BUILTIN
383 bool "Use builtin definitions for some NAND chips (deprecated)"
384 depends on MTD_NAND_PXA3xx
386 This enables builtin definitions for some NAND chips. This
387 is deprecated in favor of platform specific data.
389 config MTD_NAND_CM_X270
390 tristate "Support for NAND Flash on CM-X270 modules"
391 depends on MTD_NAND && MACH_ARMCORE
393 config MTD_NAND_PASEMI
394 tristate "NAND support for PA Semi PWRficient"
395 depends on MTD_NAND && PPC_PASEMI
397 Enables support for NAND Flash interface on PA Semi PWRficient
401 tristate "NAND Flash device on Toshiba Mobile IO Controller"
402 depends on MTD_NAND && MFD_TMIO
404 Support for NAND flash connected to a Toshiba Mobile IO
405 Controller in some PDAs, including the Sharp SL6000x.
407 config MTD_NAND_NANDSIM
408 tristate "Support for NAND Flash Simulator"
409 depends on MTD_PARTITIONS
411 The simulator may simulate various NAND flash chips for the
414 config MTD_NAND_PLATFORM
415 tristate "Support for generic platform NAND driver"
418 This implements a generic NAND driver for on-SOC platform
419 devices. You will need to provide platform-specific functions
423 tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
424 depends on MTD_NAND && USB
426 These two (and possibly other) Alauda-based cardreaders for
427 SmartMedia and xD allow raw flash access.
429 config MTD_NAND_ORION
430 tristate "NAND Flash support for Marvell Orion SoC"
431 depends on PLAT_ORION && MTD_NAND
433 This enables the NAND flash controller on Orion machines.
435 No board specific support is done by this driver, each board
436 must advertise a platform_device for the driver to attach.
438 config MTD_NAND_FSL_ELBC
439 tristate "NAND support for Freescale eLBC controllers"
440 depends on MTD_NAND && PPC_OF
442 Various Freescale chips, including the 8313, include a NAND Flash
443 Controller Module with built-in hardware ECC capabilities.
444 Enabling this option will enable you to use this to control
445 external NAND devices.
447 config MTD_NAND_FSL_UPM
448 tristate "Support for NAND on Freescale UPM"
449 depends on MTD_NAND && (PPC_83xx || PPC_85xx)
452 Enables support for NAND Flash chips wired onto Freescale PowerPC
453 processor localbus with User-Programmable Machine support.
455 config MTD_NAND_MPC5121_NFC
456 tristate "MPC5121 built-in NAND Flash Controller support"
457 depends on PPC_MPC512x
459 This enables the driver for the NAND flash controller on the
463 tristate "MXC NAND support"
464 depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3
466 This enables the driver for the NAND flash controller on the
469 config MTD_NAND_NOMADIK
470 tristate "ST Nomadik 8815 NAND support"
471 depends on ARCH_NOMADIK
473 Driver for the NAND flash controller on the Nomadik, with ECC.
475 config MTD_NAND_SH_FLCTL
476 tristate "Support for NAND on Renesas SuperH FLCTL"
477 depends on MTD_NAND && (SUPERH || ARCH_SHMOBILE)
479 Several Renesas SuperH CPU has FLCTL. This option enables support
480 for NAND Flash using FLCTL.
482 config MTD_NAND_DAVINCI
483 tristate "Support NAND on DaVinci SoC"
484 depends on ARCH_DAVINCI
486 Enable the driver for NAND flash chips on Texas Instruments
489 config MTD_NAND_TXX9NDFMC
490 tristate "NAND Flash support for TXx9 SoC"
491 depends on SOC_TX4938 || SOC_TX4939
493 This enables the NAND flash controller on the TXx9 SoCs.
495 config MTD_NAND_SOCRATES
496 tristate "Support for NAND on Socrates board"
497 depends on MTD_NAND && SOCRATES
499 Enables support for NAND Flash chips wired onto Socrates board.
501 config MTD_NAND_NUC900
502 tristate "Support for NAND on Nuvoton NUC9xx/w90p910 evaluation boards."
503 depends on ARCH_W90X900 && MTD_PARTITIONS
505 This enables the driver for the NAND Flash on evaluation board based