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).
77 config MTD_NAND_TS7250
78 tristate "NAND Flash device on TS-7250 board"
79 depends on MACH_TS72XX
81 Support for NAND flash on Technologic Systems TS-7250 platform.
86 config MTD_NAND_AU1550
87 tristate "Au1550/1200 NAND support"
88 depends on SOC_AU1200 || SOC_AU1550
90 This enables the driver for the NAND flash controller on the
94 tristate "Blackfin on-chip NAND Flash Controller driver"
95 depends on (BF54x || BF52x) && MTD_NAND
97 This enables the Blackfin on-chip NAND flash controller
99 No board specific support is done by this driver, each board
100 must advertise a platform_device for the driver to attach.
102 This driver can also be built as a module. If so, the module
103 will be called bf5xx-nand.
105 config MTD_NAND_BF5XX_HWECC
106 bool "BF5XX NAND Hardware ECC"
108 depends on MTD_NAND_BF5XX
110 Enable the use of the BF5XX's internal ECC generator when
113 config MTD_NAND_BF5XX_BOOTROM_ECC
114 bool "Use Blackfin BootROM ECC Layout"
116 depends on MTD_NAND_BF5XX_HWECC
118 If you wish to modify NAND pages and allow the Blackfin on-chip
119 BootROM to boot from them, say Y here. This is only necessary
120 if you are booting U-Boot out of NAND and you wish to update
121 U-Boot from Linux' userspace. Otherwise, you should say N here.
125 config MTD_NAND_RTC_FROM4
126 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
127 depends on SH_SOLUTION_ENGINE
129 select REED_SOLOMON_DEC8
132 This enables the driver for the Renesas Technology AG-AND
133 flash interface board (FROM_BOARD4)
135 config MTD_NAND_PPCHAMELEONEVB
136 tristate "NAND Flash device on PPChameleonEVB board"
137 depends on PPCHAMELEONEVB && BROKEN
139 This enables the NAND flash driver on the PPChameleon EVB Board.
141 config MTD_NAND_S3C2410
142 tristate "NAND Flash support for S3C2410/S3C2440 SoC"
143 depends on ARCH_S3C2410
145 This enables the NAND flash controller on the S3C2410 and S3C2440
148 No board specific support is done by this driver, each board
149 must advertise a platform_device for the driver to attach.
151 config MTD_NAND_S3C2410_DEBUG
152 bool "S3C2410 NAND driver debug"
153 depends on MTD_NAND_S3C2410
155 Enable debugging of the S3C2410 NAND driver
157 config MTD_NAND_S3C2410_HWECC
158 bool "S3C2410 NAND Hardware ECC"
159 depends on MTD_NAND_S3C2410
161 Enable the use of the S3C2410's internal ECC generator when
162 using NAND. Early versions of the chip have had problems with
163 incorrect ECC generation, and if using these, the default of
164 software ECC is preferable.
166 config MTD_NAND_S3C2410_CLKSTOP
167 bool "S3C2410 NAND IDLE clock stop"
168 depends on MTD_NAND_S3C2410
171 Stop the clock to the NAND controller when there is no chip
172 selected to save power. This will mean there is a small delay
173 when the is NAND chip selected or released, but will save
174 approximately 5mA of power when there is nothing happening.
176 config MTD_NAND_DISKONCHIP
177 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
178 depends on EXPERIMENTAL
180 select REED_SOLOMON_DEC16
182 This is a reimplementation of M-Systems DiskOnChip 2000,
183 Millennium and Millennium Plus as a standard NAND device driver,
184 as opposed to the earlier self-contained MTD device drivers.
185 This should enable, among other things, proper JFFS2 operation on
188 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
189 bool "Advanced detection options for DiskOnChip"
190 depends on MTD_NAND_DISKONCHIP
192 This option allows you to specify nonstandard address at which to
193 probe for a DiskOnChip, or to change the detection options. You
194 are unlikely to need any of this unless you are using LinuxBIOS.
197 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
198 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
199 depends on MTD_NAND_DISKONCHIP
202 By default, the probe for DiskOnChip devices will look for a
203 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
204 This option allows you to specify a single address at which to probe
205 for the device, which is useful if you have other devices in that
206 range which get upset when they are probed.
208 (Note that on PowerPC, the normal probe will only check at
211 Normally, you should leave this set to zero, to allow the probe at
212 the normal addresses.
214 config MTD_NAND_DISKONCHIP_PROBE_HIGH
215 bool "Probe high addresses"
216 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
218 By default, the probe for DiskOnChip devices will look for a
219 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
220 This option changes to make it probe between 0xFFFC8000 and
221 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
222 useful to you. Say 'N'.
224 config MTD_NAND_DISKONCHIP_BBTWRITE
225 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
226 depends on MTD_NAND_DISKONCHIP
228 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
229 and 2000 TSOP/Alon), Linux reserves some space at the end of the
230 device for the Bad Block Table (BBT). If you have existing INFTL
231 data on your device (created by non-Linux tools such as M-Systems'
232 DOS drivers), your data might overlap the area Linux wants to use for
233 the BBT. If this is a concern for you, leave this option disabled and
234 Linux will not write BBT data into this area.
235 The downside of leaving this option disabled is that if bad blocks
236 are detected by Linux, they will not be recorded in the BBT, which
237 could cause future problems.
238 Once you enable this option, new filesystems (INFTL or others, created
239 in Linux or other operating systems) will not use the reserved area.
240 The only reason not to enable this option is to prevent damage to
241 preexisting filesystems.
242 Even if you leave this disabled, you can enable BBT writes at module
243 load time (assuming you build diskonchip as a module) with the module
244 parameter "inftl_bbt_write=1".
246 config MTD_NAND_SHARPSL
247 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
250 config MTD_NAND_BASLER_EXCITE
251 tristate "Support for NAND Flash on Basler eXcite"
252 depends on BASLER_EXCITE
254 This enables the driver for the NAND flash device found on the
255 Basler eXcite Smart Camera. If built as a module, the driver
256 will be named "excite_nandflash.ko".
259 tristate "NAND support for OLPC CAFÉ chip"
262 select REED_SOLOMON_DEC16
264 Use NAND flash attached to the CAFÉ chip designed for the OLPC
267 config MTD_NAND_CS553X
268 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
269 depends on X86_32 && (X86_PC || X86_GENERICARCH)
271 The CS553x companion chips for the AMD Geode processor
272 include NAND flash controllers with built-in hardware ECC
273 capabilities; enabling this option will allow you to use
274 these. The driver will check the MSRs to verify that the
275 controller is enabled for NAND, and currently requires that
276 the controller be in MMIO mode.
278 If you say "m", the module will be called "cs553x_nand.ko".
280 config MTD_NAND_ATMEL
281 tristate "Support for NAND Flash / SmartMedia on AT91 and AVR32"
282 depends on ARCH_AT91 || AVR32
284 Enables support for NAND Flash / Smart Media Card interface
285 on Atmel AT91 and AVR32 processors.
287 prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
288 depends on MTD_NAND_ATMEL
290 config MTD_NAND_ATMEL_ECC_HW
292 depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32
294 Use hardware ECC instead of software ECC when the chip
297 The hardware ECC controller is capable of single bit error
298 correction and 2-bit random detection per page.
300 NB : hardware and software ECC schemes are incompatible.
301 If you switch from one to another, you'll have to erase your
306 config MTD_NAND_ATMEL_ECC_SOFT
311 NB : hardware and software ECC schemes are incompatible.
312 If you switch from one to another, you'll have to erase your
315 config MTD_NAND_ATMEL_ECC_NONE
316 bool "No ECC (testing only, DANGEROUS)"
317 depends on DEBUG_KERNEL
320 It's not a good idea and it should be reserved for testing
329 config MTD_NAND_PXA3xx
330 bool "Support for NAND flash devices on PXA3xx"
331 depends on MTD_NAND && PXA3xx
333 This enables the driver for the NAND flash device found on
336 config MTD_NAND_PXA3xx_BUILTIN
337 bool "Use builtin definitions for some NAND chips (deprecated)"
338 depends on MTD_NAND_PXA3xx
340 This enables builtin definitions for some NAND chips. This
341 is deprecated in favor of platform specific data.
343 config MTD_NAND_CM_X270
344 tristate "Support for NAND Flash on CM-X270 modules"
345 depends on MTD_NAND && MACH_ARMCORE
347 config MTD_NAND_PASEMI
348 tristate "NAND support for PA Semi PWRficient"
349 depends on MTD_NAND && PPC_PASEMI
351 Enables support for NAND Flash interface on PA Semi PWRficient
355 tristate "NAND Flash device on Toshiba Mobile IO Controller"
356 depends on MTD_NAND && MFD_TMIO
358 Support for NAND flash connected to a Toshiba Mobile IO
359 Controller in some PDAs, including the Sharp SL6000x.
361 config MTD_NAND_NANDSIM
362 tristate "Support for NAND Flash Simulator"
363 depends on MTD_PARTITIONS
365 The simulator may simulate various NAND flash chips for the
368 config MTD_NAND_PLATFORM
369 tristate "Support for generic platform NAND driver"
372 This implements a generic NAND driver for on-SOC platform
373 devices. You will need to provide platform-specific functions
377 tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
378 depends on MTD_NAND && USB
380 These two (and possibly other) Alauda-based cardreaders for
381 SmartMedia and xD allow raw flash access.
383 config MTD_NAND_ORION
384 tristate "NAND Flash support for Marvell Orion SoC"
385 depends on PLAT_ORION && MTD_NAND
387 This enables the NAND flash controller on Orion machines.
389 No board specific support is done by this driver, each board
390 must advertise a platform_device for the driver to attach.
392 config MTD_NAND_FSL_ELBC
393 tristate "NAND support for Freescale eLBC controllers"
394 depends on MTD_NAND && PPC_OF
396 Various Freescale chips, including the 8313, include a NAND Flash
397 Controller Module with built-in hardware ECC capabilities.
398 Enabling this option will enable you to use this to control
399 external NAND devices.
401 config MTD_NAND_FSL_UPM
402 tristate "Support for NAND on Freescale UPM"
403 depends on MTD_NAND && (PPC_83xx || PPC_85xx)
406 Enables support for NAND Flash chips wired onto Freescale PowerPC
407 processor localbus with User-Programmable Machine support.
410 tristate "MXC NAND support"
413 This enables the driver for the NAND flash controller on the
416 config MTD_NAND_SH_FLCTL
417 tristate "Support for NAND on Renesas SuperH FLCTL"
418 depends on MTD_NAND && SUPERH && CPU_SUBTYPE_SH7723
420 Several Renesas SuperH CPU has FLCTL. This option enables support
421 for NAND Flash using FLCTL. This driver support SH7723.