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 OMAP H3/H2/P2 boards"
74 depends on ARM && ARCH_OMAP1 && MTD_NAND && (MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_PERSEUS2)
76 Support for NAND flash on Texas Instruments H3/H2/P2 platforms.
78 config MTD_NAND_OMAP_HW
79 bool "OMAP HW NAND Flash controller support"
80 depends on ARM && ARCH_OMAP16XX && MTD_NAND
83 Driver for TI OMAP16xx hardware NAND flash controller.
86 tristate "NAND Flash device on TOTO board"
87 depends on ARCH_OMAP && BROKEN
89 Support for NAND flash on Texas Instruments Toto platform.
91 config MTD_NAND_TS7250
92 tristate "NAND Flash device on TS-7250 board"
93 depends on MACH_TS72XX
95 Support for NAND flash on Technologic Systems TS-7250 platform.
100 config MTD_NAND_AU1550
101 tristate "Au1550/1200 NAND support"
102 depends on SOC_AU1200 || SOC_AU1550
104 This enables the driver for the NAND flash controller on the
105 AMD/Alchemy 1550 SOC.
107 config MTD_NAND_BF5XX
108 tristate "Blackfin on-chip NAND Flash Controller driver"
109 depends on BF54x && MTD_NAND
111 This enables the Blackfin on-chip NAND flash controller
113 No board specific support is done by this driver, each board
114 must advertise a platform_device for the driver to attach.
116 This driver can also be built as a module. If so, the module
117 will be called bf5xx-nand.
119 config MTD_NAND_BF5XX_HWECC
120 bool "BF5XX NAND Hardware ECC"
121 depends on MTD_NAND_BF5XX
123 Enable the use of the BF5XX's internal ECC generator when
126 config MTD_NAND_RTC_FROM4
127 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
128 depends on SH_SOLUTION_ENGINE
130 select REED_SOLOMON_DEC8
133 This enables the driver for the Renesas Technology AG-AND
134 flash interface board (FROM_BOARD4)
136 config MTD_NAND_PPCHAMELEONEVB
137 tristate "NAND Flash device on PPChameleonEVB board"
138 depends on PPCHAMELEONEVB && BROKEN
140 This enables the NAND flash driver on the PPChameleon EVB Board.
142 config MTD_NAND_S3C2410
143 tristate "NAND Flash support for S3C2410/S3C2440 SoC"
144 depends on ARCH_S3C2410
146 This enables the NAND flash controller on the S3C2410 and S3C2440
149 No board specific support is done by this driver, each board
150 must advertise a platform_device for the driver to attach.
152 config MTD_NAND_S3C2410_DEBUG
153 bool "S3C2410 NAND driver debug"
154 depends on MTD_NAND_S3C2410
156 Enable debugging of the S3C2410 NAND driver
158 config MTD_NAND_S3C2410_HWECC
159 bool "S3C2410 NAND Hardware ECC"
160 depends on MTD_NAND_S3C2410
162 Enable the use of the S3C2410's internal ECC generator when
163 using NAND. Early versions of the chip have had problems with
164 incorrect ECC generation, and if using these, the default of
165 software ECC is preferable.
168 tristate "NDFC NanD Flash Controller"
169 depends on 4xx && !PPC_MERGE
170 select MTD_NAND_ECC_SMC
172 NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
174 config MTD_NAND_S3C2410_CLKSTOP
175 bool "S3C2410 NAND IDLE clock stop"
176 depends on MTD_NAND_S3C2410
179 Stop the clock to the NAND controller when there is no chip
180 selected to save power. This will mean there is a small delay
181 when the is NAND chip selected or released, but will save
182 approximately 5mA of power when there is nothing happening.
184 config MTD_NAND_DISKONCHIP
185 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
186 depends on EXPERIMENTAL
188 select REED_SOLOMON_DEC16
190 This is a reimplementation of M-Systems DiskOnChip 2000,
191 Millennium and Millennium Plus as a standard NAND device driver,
192 as opposed to the earlier self-contained MTD device drivers.
193 This should enable, among other things, proper JFFS2 operation on
196 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
197 bool "Advanced detection options for DiskOnChip"
198 depends on MTD_NAND_DISKONCHIP
200 This option allows you to specify nonstandard address at which to
201 probe for a DiskOnChip, or to change the detection options. You
202 are unlikely to need any of this unless you are using LinuxBIOS.
205 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
206 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
207 depends on MTD_NAND_DISKONCHIP
210 By default, the probe for DiskOnChip devices will look for a
211 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
212 This option allows you to specify a single address at which to probe
213 for the device, which is useful if you have other devices in that
214 range which get upset when they are probed.
216 (Note that on PowerPC, the normal probe will only check at
219 Normally, you should leave this set to zero, to allow the probe at
220 the normal addresses.
222 config MTD_NAND_DISKONCHIP_PROBE_HIGH
223 bool "Probe high addresses"
224 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
226 By default, the probe for DiskOnChip devices will look for a
227 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
228 This option changes to make it probe between 0xFFFC8000 and
229 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
230 useful to you. Say 'N'.
232 config MTD_NAND_DISKONCHIP_BBTWRITE
233 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
234 depends on MTD_NAND_DISKONCHIP
236 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
237 and 2000 TSOP/Alon), Linux reserves some space at the end of the
238 device for the Bad Block Table (BBT). If you have existing INFTL
239 data on your device (created by non-Linux tools such as M-Systems'
240 DOS drivers), your data might overlap the area Linux wants to use for
241 the BBT. If this is a concern for you, leave this option disabled and
242 Linux will not write BBT data into this area.
243 The downside of leaving this option disabled is that if bad blocks
244 are detected by Linux, they will not be recorded in the BBT, which
245 could cause future problems.
246 Once you enable this option, new filesystems (INFTL or others, created
247 in Linux or other operating systems) will not use the reserved area.
248 The only reason not to enable this option is to prevent damage to
249 preexisting filesystems.
250 Even if you leave this disabled, you can enable BBT writes at module
251 load time (assuming you build diskonchip as a module) with the module
252 parameter "inftl_bbt_write=1".
254 config MTD_NAND_SHARPSL
255 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
258 config MTD_NAND_BASLER_EXCITE
259 tristate "Support for NAND Flash on Basler eXcite"
260 depends on BASLER_EXCITE
262 This enables the driver for the NAND flash device found on the
263 Basler eXcite Smart Camera. If built as a module, the driver
264 will be named "excite_nandflash.ko".
267 tristate "NAND support for OLPC CAFÉ chip"
270 select REED_SOLOMON_DEC16
272 Use NAND flash attached to the CAFÉ chip designed for the OLPC
275 config MTD_NAND_CS553X
276 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
277 depends on X86_32 && (X86_PC || X86_GENERICARCH)
279 The CS553x companion chips for the AMD Geode processor
280 include NAND flash controllers with built-in hardware ECC
281 capabilities; enabling this option will allow you to use
282 these. The driver will check the MSRs to verify that the
283 controller is enabled for NAND, and currently requires that
284 the controller be in MMIO mode.
286 If you say "m", the module will be called "cs553x_nand.ko".
289 bool "Support for NAND Flash / SmartMedia on AT91"
292 Enables support for NAND Flash / Smart Media Card interface
293 on Atmel AT91 processors.
295 config MTD_NAND_CM_X270
296 tristate "Support for NAND Flash on CM-X270 modules"
297 depends on MTD_NAND && MACH_ARMCORE
300 config MTD_NAND_NANDSIM
301 tristate "Support for NAND Flash Simulator"
302 depends on MTD_PARTITIONS
304 The simulator may simulate various NAND flash chips for the
307 config MTD_NAND_PLATFORM
308 tristate "Support for generic platform NAND driver"
311 This implements a generic NAND driver for on-SOC platform
312 devices. You will need to provide platform-specific functions
316 tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1"
317 depends on MTD_NAND && USB
319 These two (and possibly other) Alauda-based cardreaders for
320 SmartMedia and xD allow raw flash access.