1 # drivers/mtd/nand/Kconfig
2 # $Id: Kconfig,v 1.35 2005/11/07 11:14:30 gleixner Exp $
5 tristate "NAND Device Support"
9 This enables support for accessing all type of NAND flash
10 devices. For further information see
11 <http://www.linux-mtd.infradead.org/doc/nand.html>.
15 config MTD_NAND_VERIFY_WRITE
16 bool "Verify NAND page writes"
18 This adds an extra check when data is written to the flash. The
19 NAND flash device internally checks only bits transitioning
20 from 1 to 0. There is a rare possibility that even though the
21 device thinks the write was successful, a bit could have been
22 flipped accidentally due to device wear or something else.
24 config MTD_NAND_ECC_SMC
25 bool "NAND ECC Smart Media byte order"
28 Software ECC according to the Smart Media Specification.
29 The original Linux implementation had byte 0 and 1 swapped.
31 config MTD_NAND_MUSEUM_IDS
32 bool "Enable chip ids for obsolete ancient NAND devices"
36 Enable this option only when your board has first generation
37 NAND chips (page size 256 byte, erase size 4-8KiB). The IDs
38 of these chips were reused by later, larger chips.
40 config MTD_NAND_AUTCPU12
41 tristate "SmartMediaCard on autronix autcpu12 board"
42 depends on ARCH_AUTCPU12
44 This enables the driver for the autronix autcpu12 board to
45 access the SmartMediaCard.
47 config MTD_NAND_EDB7312
48 tristate "Support for Cirrus Logic EBD7312 evaluation board"
49 depends on ARCH_EDB7312
51 This enables the driver for the Cirrus Logic EBD7312 evaluation
52 board to access the onboard NAND Flash.
55 tristate "iPAQ H1900 flash"
56 depends on ARCH_PXA && MTD_PARTITIONS
58 This enables the driver for the iPAQ h1900 flash.
61 tristate "NAND Flash device on SPIA board"
64 If you had to ask, you don't have one. Say 'N'.
66 config MTD_NAND_AMS_DELTA
67 tristate "NAND Flash device on Amstrad E3"
68 depends on MACH_AMS_DELTA
70 Support for NAND flash on Amstrad E3 (Delta).
73 tristate "NAND Flash device on TOTO board"
74 depends on ARCH_OMAP && BROKEN
76 Support for NAND flash on Texas Instruments Toto platform.
78 config MTD_NAND_TS7250
79 tristate "NAND Flash device on TS-7250 board"
80 depends on MACH_TS72XX
82 Support for NAND flash on Technologic Systems TS-7250 platform.
87 config MTD_NAND_AU1550
88 tristate "Au1550/1200 NAND support"
89 depends on SOC_AU1200 || SOC_AU1550
91 This enables the driver for the NAND flash controller on the
95 tristate "Blackfin on-chip NAND Flash Controller driver"
96 depends on (BF54x || BF52x) && MTD_NAND
98 This enables the Blackfin on-chip NAND flash controller
100 No board specific support is done by this driver, each board
101 must advertise a platform_device for the driver to attach.
103 This driver can also be built as a module. If so, the module
104 will be called bf5xx-nand.
106 config MTD_NAND_BF5XX_HWECC
107 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_RTC_FROM4
114 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
115 depends on SH_SOLUTION_ENGINE
117 select REED_SOLOMON_DEC8
120 This enables the driver for the Renesas Technology AG-AND
121 flash interface board (FROM_BOARD4)
123 config MTD_NAND_PPCHAMELEONEVB
124 tristate "NAND Flash device on PPChameleonEVB board"
125 depends on PPCHAMELEONEVB && BROKEN
127 This enables the NAND flash driver on the PPChameleon EVB Board.
129 config MTD_NAND_S3C2410
130 tristate "NAND Flash support for S3C2410/S3C2440 SoC"
131 depends on ARCH_S3C2410
133 This enables the NAND flash controller on the S3C2410 and S3C2440
136 No board specific support is done by this driver, each board
137 must advertise a platform_device for the driver to attach.
139 config MTD_NAND_S3C2410_DEBUG
140 bool "S3C2410 NAND driver debug"
141 depends on MTD_NAND_S3C2410
143 Enable debugging of the S3C2410 NAND driver
145 config MTD_NAND_S3C2410_HWECC
146 bool "S3C2410 NAND Hardware ECC"
147 depends on MTD_NAND_S3C2410
149 Enable the use of the S3C2410's internal ECC generator when
150 using NAND. Early versions of the chip have had problems with
151 incorrect ECC generation, and if using these, the default of
152 software ECC is preferable.
155 tristate "NDFC NanD Flash Controller"
156 depends on 4xx && !PPC_MERGE
157 select MTD_NAND_ECC_SMC
159 NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
161 config MTD_NAND_S3C2410_CLKSTOP
162 bool "S3C2410 NAND IDLE clock stop"
163 depends on MTD_NAND_S3C2410
166 Stop the clock to the NAND controller when there is no chip
167 selected to save power. This will mean there is a small delay
168 when the is NAND chip selected or released, but will save
169 approximately 5mA of power when there is nothing happening.
171 config MTD_NAND_DISKONCHIP
172 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
173 depends on EXPERIMENTAL
175 select REED_SOLOMON_DEC16
177 This is a reimplementation of M-Systems DiskOnChip 2000,
178 Millennium and Millennium Plus as a standard NAND device driver,
179 as opposed to the earlier self-contained MTD device drivers.
180 This should enable, among other things, proper JFFS2 operation on
183 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
184 bool "Advanced detection options for DiskOnChip"
185 depends on MTD_NAND_DISKONCHIP
187 This option allows you to specify nonstandard address at which to
188 probe for a DiskOnChip, or to change the detection options. You
189 are unlikely to need any of this unless you are using LinuxBIOS.
192 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
193 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
194 depends on MTD_NAND_DISKONCHIP
197 By default, the probe for DiskOnChip devices will look for a
198 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
199 This option allows you to specify a single address at which to probe
200 for the device, which is useful if you have other devices in that
201 range which get upset when they are probed.
203 (Note that on PowerPC, the normal probe will only check at
206 Normally, you should leave this set to zero, to allow the probe at
207 the normal addresses.
209 config MTD_NAND_DISKONCHIP_PROBE_HIGH
210 bool "Probe high addresses"
211 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
213 By default, the probe for DiskOnChip devices will look for a
214 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
215 This option changes to make it probe between 0xFFFC8000 and
216 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
217 useful to you. Say 'N'.
219 config MTD_NAND_DISKONCHIP_BBTWRITE
220 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
221 depends on MTD_NAND_DISKONCHIP
223 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
224 and 2000 TSOP/Alon), Linux reserves some space at the end of the
225 device for the Bad Block Table (BBT). If you have existing INFTL
226 data on your device (created by non-Linux tools such as M-Systems'
227 DOS drivers), your data might overlap the area Linux wants to use for
228 the BBT. If this is a concern for you, leave this option disabled and
229 Linux will not write BBT data into this area.
230 The downside of leaving this option disabled is that if bad blocks
231 are detected by Linux, they will not be recorded in the BBT, which
232 could cause future problems.
233 Once you enable this option, new filesystems (INFTL or others, created
234 in Linux or other operating systems) will not use the reserved area.
235 The only reason not to enable this option is to prevent damage to
236 preexisting filesystems.
237 Even if you leave this disabled, you can enable BBT writes at module
238 load time (assuming you build diskonchip as a module) with the module
239 parameter "inftl_bbt_write=1".
241 config MTD_NAND_SHARPSL
242 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
245 config MTD_NAND_BASLER_EXCITE
246 tristate "Support for NAND Flash on Basler eXcite"
247 depends on BASLER_EXCITE
249 This enables the driver for the NAND flash device found on the
250 Basler eXcite Smart Camera. If built as a module, the driver
251 will be named "excite_nandflash.ko".
254 tristate "NAND support for OLPC CAFÉ chip"
257 select REED_SOLOMON_DEC16
259 Use NAND flash attached to the CAFÉ chip designed for the OLPC
262 config MTD_NAND_CS553X
263 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
264 depends on X86_32 && (X86_PC || X86_GENERICARCH)
266 The CS553x companion chips for the AMD Geode processor
267 include NAND flash controllers with built-in hardware ECC
268 capabilities; enabling this option will allow you to use
269 these. The driver will check the MSRs to verify that the
270 controller is enabled for NAND, and currently requires that
271 the controller be in MMIO mode.
273 If you say "m", the module will be called "cs553x_nand.ko".
276 bool "Support for NAND Flash / SmartMedia on AT91"
279 Enables support for NAND Flash / Smart Media Card interface
280 on Atmel AT91 processors.
282 prompt "ECC management for NAND Flash / SmartMedia on AT91"
283 depends on MTD_NAND_AT91
285 config MTD_NAND_AT91_ECC_HW
287 depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260
289 Uses hardware ECC provided by the at91sam9260/at91sam9263 chip
290 instead of software ECC.
291 The hardware ECC controller is capable of single bit error
292 correction and 2-bit random detection per page.
294 NB : hardware and software ECC schemes are incompatible.
295 If you switch from one to another, you'll have to erase your
300 config MTD_NAND_AT91_ECC_SOFT
305 NB : hardware and software ECC schemes are incompatible.
306 If you switch from one to another, you'll have to erase your
309 config MTD_NAND_AT91_ECC_NONE
310 bool "No ECC (testing only, DANGEROUS)"
311 depends on DEBUG_KERNEL
314 It's not a good idea and it should be reserved for testing
323 config MTD_NAND_PXA3xx
324 bool "Support for NAND flash devices on PXA3xx"
325 depends on MTD_NAND && PXA3xx
327 This enables the driver for the NAND flash device found on
330 config MTD_NAND_CM_X270
331 tristate "Support for NAND Flash on CM-X270 modules"
332 depends on MTD_NAND && MACH_ARMCORE
334 config MTD_NAND_PASEMI
335 tristate "NAND support for PA Semi PWRficient"
336 depends on MTD_NAND && PPC_PASEMI
338 Enables support for NAND Flash interface on PA Semi PWRficient
341 config MTD_NAND_NANDSIM
342 tristate "Support for NAND Flash Simulator"
343 depends on MTD_PARTITIONS
345 The simulator may simulate various NAND flash chips for the
348 config MTD_NAND_PLATFORM
349 tristate "Support for generic platform NAND driver"
352 This implements a generic NAND driver for on-SOC platform
353 devices. You will need to provide platform-specific functions
357 tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
358 depends on MTD_NAND && USB
360 These two (and possibly other) Alauda-based cardreaders for
361 SmartMedia and xD allow raw flash access.
363 config MTD_NAND_ORION
364 tristate "NAND Flash support for Marvell Orion SoC"
365 depends on PLAT_ORION && MTD_NAND
367 This enables the NAND flash controller on Orion machines.
369 No board specific support is done by this driver, each board
370 must advertise a platform_device for the driver to attach.
372 config MTD_NAND_FSL_ELBC
373 tristate "NAND support for Freescale eLBC controllers"
374 depends on MTD_NAND && PPC_OF
376 Various Freescale chips, including the 8313, include a NAND Flash
377 Controller Module with built-in hardware ECC capabilities.
378 Enabling this option will enable you to use this to control
379 external NAND devices.
381 config MTD_NAND_FSL_UPM
382 tristate "Support for NAND on Freescale UPM"
383 depends on MTD_NAND && OF_GPIO && (PPC_83xx || PPC_85xx)
386 Enables support for NAND Flash chips wired onto Freescale PowerPC
387 processor localbus with User-Programmable Machine support.