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 "NAND Flash device on SPIA board"
63 If you had to ask, you don't have one. Say 'N'.
65 config MTD_NAND_AMS_DELTA
66 tristate "NAND Flash device on Amstrad E3"
67 depends on MACH_AMS_DELTA
69 Support for NAND flash on Amstrad E3 (Delta).
71 config MTD_NAND_TS7250
72 tristate "NAND Flash device on TS-7250 board"
73 depends on MACH_TS72XX
75 Support for NAND flash on Technologic Systems TS-7250 platform.
80 config MTD_NAND_AU1550
81 tristate "Au1550/1200 NAND support"
82 depends on SOC_AU1200 || SOC_AU1550
84 This enables the driver for the NAND flash controller on the
88 tristate "Blackfin on-chip NAND Flash Controller driver"
89 depends on (BF54x || BF52x) && MTD_NAND
91 This enables the Blackfin on-chip NAND flash controller
93 No board specific support is done by this driver, each board
94 must advertise a platform_device for the driver to attach.
96 This driver can also be built as a module. If so, the module
97 will be called bf5xx-nand.
99 config MTD_NAND_BF5XX_HWECC
100 bool "BF5XX NAND Hardware ECC"
102 depends on MTD_NAND_BF5XX
104 Enable the use of the BF5XX's internal ECC generator when
107 config MTD_NAND_BF5XX_BOOTROM_ECC
108 bool "Use Blackfin BootROM ECC Layout"
110 depends on MTD_NAND_BF5XX_HWECC
112 If you wish to modify NAND pages and allow the Blackfin on-chip
113 BootROM to boot from them, say Y here. This is only necessary
114 if you are booting U-Boot out of NAND and you wish to update
115 U-Boot from Linux' userspace. Otherwise, you should say N here.
119 config MTD_NAND_RTC_FROM4
120 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
121 depends on SH_SOLUTION_ENGINE
123 select REED_SOLOMON_DEC8
126 This enables the driver for the Renesas Technology AG-AND
127 flash interface board (FROM_BOARD4)
129 config MTD_NAND_PPCHAMELEONEVB
130 tristate "NAND Flash device on PPChameleonEVB board"
131 depends on PPCHAMELEONEVB && BROKEN
133 This enables the NAND flash driver on the PPChameleon EVB Board.
135 config MTD_NAND_S3C2410
136 tristate "NAND Flash support for S3C2410/S3C2440 SoC"
137 depends on ARCH_S3C2410
139 This enables the NAND flash controller on the S3C2410 and S3C2440
142 No board specific support is done by this driver, each board
143 must advertise a platform_device for the driver to attach.
145 config MTD_NAND_S3C2410_DEBUG
146 bool "S3C2410 NAND driver debug"
147 depends on MTD_NAND_S3C2410
149 Enable debugging of the S3C2410 NAND driver
151 config MTD_NAND_S3C2410_HWECC
152 bool "S3C2410 NAND Hardware ECC"
153 depends on MTD_NAND_S3C2410
155 Enable the use of the S3C2410's internal ECC generator when
156 using NAND. Early versions of the chip have had problems with
157 incorrect ECC generation, and if using these, the default of
158 software ECC is preferable.
161 tristate "NDFC NanD Flash Controller"
162 depends on 4xx && !PPC_MERGE
163 select MTD_NAND_ECC_SMC
165 NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
167 config MTD_NAND_S3C2410_CLKSTOP
168 bool "S3C2410 NAND IDLE clock stop"
169 depends on MTD_NAND_S3C2410
172 Stop the clock to the NAND controller when there is no chip
173 selected to save power. This will mean there is a small delay
174 when the is NAND chip selected or released, but will save
175 approximately 5mA of power when there is nothing happening.
177 config MTD_NAND_DISKONCHIP
178 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
179 depends on EXPERIMENTAL
181 select REED_SOLOMON_DEC16
183 This is a reimplementation of M-Systems DiskOnChip 2000,
184 Millennium and Millennium Plus as a standard NAND device driver,
185 as opposed to the earlier self-contained MTD device drivers.
186 This should enable, among other things, proper JFFS2 operation on
189 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
190 bool "Advanced detection options for DiskOnChip"
191 depends on MTD_NAND_DISKONCHIP
193 This option allows you to specify nonstandard address at which to
194 probe for a DiskOnChip, or to change the detection options. You
195 are unlikely to need any of this unless you are using LinuxBIOS.
198 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
199 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
200 depends on MTD_NAND_DISKONCHIP
203 By default, the probe for DiskOnChip devices will look for a
204 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
205 This option allows you to specify a single address at which to probe
206 for the device, which is useful if you have other devices in that
207 range which get upset when they are probed.
209 (Note that on PowerPC, the normal probe will only check at
212 Normally, you should leave this set to zero, to allow the probe at
213 the normal addresses.
215 config MTD_NAND_DISKONCHIP_PROBE_HIGH
216 bool "Probe high addresses"
217 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
219 By default, the probe for DiskOnChip devices will look for a
220 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
221 This option changes to make it probe between 0xFFFC8000 and
222 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
223 useful to you. Say 'N'.
225 config MTD_NAND_DISKONCHIP_BBTWRITE
226 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
227 depends on MTD_NAND_DISKONCHIP
229 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
230 and 2000 TSOP/Alon), Linux reserves some space at the end of the
231 device for the Bad Block Table (BBT). If you have existing INFTL
232 data on your device (created by non-Linux tools such as M-Systems'
233 DOS drivers), your data might overlap the area Linux wants to use for
234 the BBT. If this is a concern for you, leave this option disabled and
235 Linux will not write BBT data into this area.
236 The downside of leaving this option disabled is that if bad blocks
237 are detected by Linux, they will not be recorded in the BBT, which
238 could cause future problems.
239 Once you enable this option, new filesystems (INFTL or others, created
240 in Linux or other operating systems) will not use the reserved area.
241 The only reason not to enable this option is to prevent damage to
242 preexisting filesystems.
243 Even if you leave this disabled, you can enable BBT writes at module
244 load time (assuming you build diskonchip as a module) with the module
245 parameter "inftl_bbt_write=1".
247 config MTD_NAND_SHARPSL
248 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
251 config MTD_NAND_BASLER_EXCITE
252 tristate "Support for NAND Flash on Basler eXcite"
253 depends on BASLER_EXCITE
255 This enables the driver for the NAND flash device found on the
256 Basler eXcite Smart Camera. If built as a module, the driver
257 will be named "excite_nandflash.ko".
260 tristate "NAND support for OLPC CAFÉ chip"
263 select REED_SOLOMON_DEC16
265 Use NAND flash attached to the CAFÉ chip designed for the OLPC
268 config MTD_NAND_CS553X
269 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
270 depends on X86_32 && (X86_PC || X86_GENERICARCH)
272 The CS553x companion chips for the AMD Geode processor
273 include NAND flash controllers with built-in hardware ECC
274 capabilities; enabling this option will allow you to use
275 these. The driver will check the MSRs to verify that the
276 controller is enabled for NAND, and currently requires that
277 the controller be in MMIO mode.
279 If you say "m", the module will be called "cs553x_nand.ko".
281 config MTD_NAND_ATMEL
282 tristate "Support for NAND Flash / SmartMedia on AT91 and AVR32"
283 depends on ARCH_AT91 || AVR32
285 Enables support for NAND Flash / Smart Media Card interface
286 on Atmel AT91 and AVR32 processors.
288 prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32"
289 depends on MTD_NAND_ATMEL
291 config MTD_NAND_ATMEL_ECC_HW
293 depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32
295 Use hardware ECC instead of software ECC when the chip
298 The hardware ECC controller is capable of single bit error
299 correction and 2-bit random detection per page.
301 NB : hardware and software ECC schemes are incompatible.
302 If you switch from one to another, you'll have to erase your
307 config MTD_NAND_ATMEL_ECC_SOFT
312 NB : hardware and software ECC schemes are incompatible.
313 If you switch from one to another, you'll have to erase your
316 config MTD_NAND_ATMEL_ECC_NONE
317 bool "No ECC (testing only, DANGEROUS)"
318 depends on DEBUG_KERNEL
321 It's not a good idea and it should be reserved for testing
330 config MTD_NAND_PXA3xx
331 bool "Support for NAND flash devices on PXA3xx"
332 depends on MTD_NAND && PXA3xx
334 This enables the driver for the NAND flash device found on
337 config MTD_NAND_PXA3xx_BUILTIN
338 bool "Use builtin definitions for some NAND chips (deprecated)"
339 depends on MTD_NAND_PXA3xx
341 This enables builtin definitions for some NAND chips. This
342 is deprecated in favor of platform specific data.
344 config MTD_NAND_CM_X270
345 tristate "Support for NAND Flash on CM-X270 modules"
346 depends on MTD_NAND && MACH_ARMCORE
348 config MTD_NAND_PASEMI
349 tristate "NAND support for PA Semi PWRficient"
350 depends on MTD_NAND && PPC_PASEMI
352 Enables support for NAND Flash interface on PA Semi PWRficient
356 tristate "NAND Flash device on Toshiba Mobile IO Controller"
357 depends on MTD_NAND && MFD_TMIO
359 Support for NAND flash connected to a Toshiba Mobile IO
360 Controller in some PDAs, including the Sharp SL6000x.
362 config MTD_NAND_NANDSIM
363 tristate "Support for NAND Flash Simulator"
364 depends on MTD_PARTITIONS
366 The simulator may simulate various NAND flash chips for the
369 config MTD_NAND_PLATFORM
370 tristate "Support for generic platform NAND driver"
373 This implements a generic NAND driver for on-SOC platform
374 devices. You will need to provide platform-specific functions
378 tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
379 depends on MTD_NAND && USB
381 These two (and possibly other) Alauda-based cardreaders for
382 SmartMedia and xD allow raw flash access.
384 config MTD_NAND_ORION
385 tristate "NAND Flash support for Marvell Orion SoC"
386 depends on PLAT_ORION && MTD_NAND
388 This enables the NAND flash controller on Orion machines.
390 No board specific support is done by this driver, each board
391 must advertise a platform_device for the driver to attach.
393 config MTD_NAND_FSL_ELBC
394 tristate "NAND support for Freescale eLBC controllers"
395 depends on MTD_NAND && PPC_OF
397 Various Freescale chips, including the 8313, include a NAND Flash
398 Controller Module with built-in hardware ECC capabilities.
399 Enabling this option will enable you to use this to control
400 external NAND devices.
402 config MTD_NAND_FSL_UPM
403 tristate "Support for NAND on Freescale UPM"
404 depends on MTD_NAND && OF_GPIO && (PPC_83xx || PPC_85xx)
407 Enables support for NAND Flash chips wired onto Freescale PowerPC
408 processor localbus with User-Programmable Machine support.