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
94 config MTD_NAND_RTC_FROM4
95 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
96 depends on SH_SOLUTION_ENGINE
98 select REED_SOLOMON_DEC8
101 This enables the driver for the Renesas Technology AG-AND
102 flash interface board (FROM_BOARD4)
104 config MTD_NAND_PPCHAMELEONEVB
105 tristate "NAND Flash device on PPChameleonEVB board"
106 depends on PPCHAMELEONEVB && BROKEN
108 This enables the NAND flash driver on the PPChameleon EVB Board.
110 config MTD_NAND_S3C2410
111 tristate "NAND Flash support for S3C2410/S3C2440 SoC"
112 depends on ARCH_S3C2410
114 This enables the NAND flash controller on the S3C2410 and S3C2440
117 No board specific support is done by this driver, each board
118 must advertise a platform_device for the driver to attach.
120 config MTD_NAND_S3C2410_DEBUG
121 bool "S3C2410 NAND driver debug"
122 depends on MTD_NAND_S3C2410
124 Enable debugging of the S3C2410 NAND driver
126 config MTD_NAND_S3C2410_HWECC
127 bool "S3C2410 NAND Hardware ECC"
128 depends on MTD_NAND_S3C2410
130 Enable the use of the S3C2410's internal ECC generator when
131 using NAND. Early versions of the chip have had problems with
132 incorrect ECC generation, and if using these, the default of
133 software ECC is preferable.
136 tristate "NDFC NanD Flash Controller"
137 depends on 44x && !PPC_MERGE
138 select MTD_NAND_ECC_SMC
140 NDFC Nand Flash Controllers are integrated in EP44x SoCs
142 config MTD_NAND_S3C2410_CLKSTOP
143 bool "S3C2410 NAND IDLE clock stop"
144 depends on MTD_NAND_S3C2410
147 Stop the clock to the NAND controller when there is no chip
148 selected to save power. This will mean there is a small delay
149 when the is NAND chip selected or released, but will save
150 approximately 5mA of power when there is nothing happening.
152 config MTD_NAND_DISKONCHIP
153 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
154 depends on EXPERIMENTAL
156 select REED_SOLOMON_DEC16
158 This is a reimplementation of M-Systems DiskOnChip 2000,
159 Millennium and Millennium Plus as a standard NAND device driver,
160 as opposed to the earlier self-contained MTD device drivers.
161 This should enable, among other things, proper JFFS2 operation on
164 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
165 bool "Advanced detection options for DiskOnChip"
166 depends on MTD_NAND_DISKONCHIP
168 This option allows you to specify nonstandard address at which to
169 probe for a DiskOnChip, or to change the detection options. You
170 are unlikely to need any of this unless you are using LinuxBIOS.
173 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
174 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
175 depends on MTD_NAND_DISKONCHIP
178 By default, the probe for DiskOnChip devices will look for a
179 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
180 This option allows you to specify a single address at which to probe
181 for the device, which is useful if you have other devices in that
182 range which get upset when they are probed.
184 (Note that on PowerPC, the normal probe will only check at
187 Normally, you should leave this set to zero, to allow the probe at
188 the normal addresses.
190 config MTD_NAND_DISKONCHIP_PROBE_HIGH
191 bool "Probe high addresses"
192 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
194 By default, the probe for DiskOnChip devices will look for a
195 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
196 This option changes to make it probe between 0xFFFC8000 and
197 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
198 useful to you. Say 'N'.
200 config MTD_NAND_DISKONCHIP_BBTWRITE
201 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
202 depends on MTD_NAND_DISKONCHIP
204 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
205 and 2000 TSOP/Alon), Linux reserves some space at the end of the
206 device for the Bad Block Table (BBT). If you have existing INFTL
207 data on your device (created by non-Linux tools such as M-Systems'
208 DOS drivers), your data might overlap the area Linux wants to use for
209 the BBT. If this is a concern for you, leave this option disabled and
210 Linux will not write BBT data into this area.
211 The downside of leaving this option disabled is that if bad blocks
212 are detected by Linux, they will not be recorded in the BBT, which
213 could cause future problems.
214 Once you enable this option, new filesystems (INFTL or others, created
215 in Linux or other operating systems) will not use the reserved area.
216 The only reason not to enable this option is to prevent damage to
217 preexisting filesystems.
218 Even if you leave this disabled, you can enable BBT writes at module
219 load time (assuming you build diskonchip as a module) with the module
220 parameter "inftl_bbt_write=1".
222 config MTD_NAND_SHARPSL
223 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
226 config MTD_NAND_BASLER_EXCITE
227 tristate "Support for NAND Flash on Basler eXcite"
228 depends on BASLER_EXCITE
230 This enables the driver for the NAND flash device found on the
231 Basler eXcite Smart Camera. If built as a module, the driver
232 will be named "excite_nandflash.ko".
235 tristate "NAND support for OLPC CAFÉ chip"
238 select REED_SOLOMON_DEC16
240 Use NAND flash attached to the CAFÉ chip designed for the $100
243 config MTD_NAND_CS553X
244 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
245 depends on X86_32 && (X86_PC || X86_GENERICARCH)
247 The CS553x companion chips for the AMD Geode processor
248 include NAND flash controllers with built-in hardware ECC
249 capabilities; enabling this option will allow you to use
250 these. The driver will check the MSRs to verify that the
251 controller is enabled for NAND, and currently requires that
252 the controller be in MMIO mode.
254 If you say "m", the module will be called "cs553x_nand.ko".
257 bool "Support for NAND Flash / SmartMedia on AT91"
260 Enables support for NAND Flash / Smart Media Card interface
261 on Atmel AT91 processors.
263 config MTD_NAND_CM_X270
264 tristate "Support for NAND Flash on CM-X270 modules"
265 depends on MTD_NAND && MACH_ARMCORE
268 config MTD_NAND_NANDSIM
269 tristate "Support for NAND Flash Simulator"
270 depends on MTD_PARTITIONS
272 The simulator may simulate various NAND flash chips for the
275 config MTD_NAND_PLATFORM
276 tristate "Support for generic platform NAND driver"
279 This implements a generic NAND driver for on-SOC platform
280 devices. You will need to provide platform-specific functions