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_RTC_FROM4
108 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
109 depends on SH_SOLUTION_ENGINE
111 select REED_SOLOMON_DEC8
114 This enables the driver for the Renesas Technology AG-AND
115 flash interface board (FROM_BOARD4)
117 config MTD_NAND_PPCHAMELEONEVB
118 tristate "NAND Flash device on PPChameleonEVB board"
119 depends on PPCHAMELEONEVB && BROKEN
121 This enables the NAND flash driver on the PPChameleon EVB Board.
123 config MTD_NAND_S3C2410
124 tristate "NAND Flash support for S3C2410/S3C2440 SoC"
125 depends on ARCH_S3C2410
127 This enables the NAND flash controller on the S3C2410 and S3C2440
130 No board specific support is done by this driver, each board
131 must advertise a platform_device for the driver to attach.
133 config MTD_NAND_S3C2410_DEBUG
134 bool "S3C2410 NAND driver debug"
135 depends on MTD_NAND_S3C2410
137 Enable debugging of the S3C2410 NAND driver
139 config MTD_NAND_S3C2410_HWECC
140 bool "S3C2410 NAND Hardware ECC"
141 depends on MTD_NAND_S3C2410
143 Enable the use of the S3C2410's internal ECC generator when
144 using NAND. Early versions of the chip have had problems with
145 incorrect ECC generation, and if using these, the default of
146 software ECC is preferable.
149 tristate "NDFC NanD Flash Controller"
151 select MTD_NAND_ECC_SMC
153 NDFC Nand Flash Controllers are integrated in EP44x SoCs
155 config MTD_NAND_S3C2410_CLKSTOP
156 bool "S3C2410 NAND IDLE clock stop"
157 depends on MTD_NAND_S3C2410
160 Stop the clock to the NAND controller when there is no chip
161 selected to save power. This will mean there is a small delay
162 when the is NAND chip selected or released, but will save
163 approximately 5mA of power when there is nothing happening.
165 config MTD_NAND_DISKONCHIP
166 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
167 depends on EXPERIMENTAL
169 select REED_SOLOMON_DEC16
171 This is a reimplementation of M-Systems DiskOnChip 2000,
172 Millennium and Millennium Plus as a standard NAND device driver,
173 as opposed to the earlier self-contained MTD device drivers.
174 This should enable, among other things, proper JFFS2 operation on
177 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
178 bool "Advanced detection options for DiskOnChip"
179 depends on MTD_NAND_DISKONCHIP
181 This option allows you to specify nonstandard address at which to
182 probe for a DiskOnChip, or to change the detection options. You
183 are unlikely to need any of this unless you are using LinuxBIOS.
186 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
187 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
188 depends on MTD_NAND_DISKONCHIP
191 By default, the probe for DiskOnChip devices will look for a
192 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
193 This option allows you to specify a single address at which to probe
194 for the device, which is useful if you have other devices in that
195 range which get upset when they are probed.
197 (Note that on PowerPC, the normal probe will only check at
200 Normally, you should leave this set to zero, to allow the probe at
201 the normal addresses.
203 config MTD_NAND_DISKONCHIP_PROBE_HIGH
204 bool "Probe high addresses"
205 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
207 By default, the probe for DiskOnChip devices will look for a
208 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
209 This option changes to make it probe between 0xFFFC8000 and
210 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
211 useful to you. Say 'N'.
213 config MTD_NAND_DISKONCHIP_BBTWRITE
214 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
215 depends on MTD_NAND_DISKONCHIP
217 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
218 and 2000 TSOP/Alon), Linux reserves some space at the end of the
219 device for the Bad Block Table (BBT). If you have existing INFTL
220 data on your device (created by non-Linux tools such as M-Systems'
221 DOS drivers), your data might overlap the area Linux wants to use for
222 the BBT. If this is a concern for you, leave this option disabled and
223 Linux will not write BBT data into this area.
224 The downside of leaving this option disabled is that if bad blocks
225 are detected by Linux, they will not be recorded in the BBT, which
226 could cause future problems.
227 Once you enable this option, new filesystems (INFTL or others, created
228 in Linux or other operating systems) will not use the reserved area.
229 The only reason not to enable this option is to prevent damage to
230 preexisting filesystems.
231 Even if you leave this disabled, you can enable BBT writes at module
232 load time (assuming you build diskonchip as a module) with the module
233 parameter "inftl_bbt_write=1".
235 config MTD_NAND_SHARPSL
236 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
239 config MTD_NAND_BASLER_EXCITE
240 tristate "Support for NAND Flash on Basler eXcite"
241 depends on BASLER_EXCITE
243 This enables the driver for the NAND flash device found on the
244 Basler eXcite Smart Camera. If built as a module, the driver
245 will be named "excite_nandflash.ko".
248 tristate "NAND support for OLPC CAFÉ chip"
251 select REED_SOLOMON_DEC16
253 Use NAND flash attached to the CAFÉ chip designed for the $100
256 config MTD_NAND_CS553X
257 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
258 depends on X86_32 && (X86_PC || X86_GENERICARCH)
260 The CS553x companion chips for the AMD Geode processor
261 include NAND flash controllers with built-in hardware ECC
262 capabilities; enabling this option will allow you to use
263 these. The driver will check the MSRs to verify that the
264 controller is enabled for NAND, and currently requires that
265 the controller be in MMIO mode.
267 If you say "m", the module will be called "cs553x_nand.ko".
270 bool "Support for NAND Flash / SmartMedia on AT91"
273 Enables support for NAND Flash / Smart Media Card interface
274 on Atmel AT91 processors.
276 config MTD_NAND_CM_X270
277 tristate "Support for NAND Flash on CM-X270 modules"
278 depends on MTD_NAND && MACH_ARMCORE
281 config MTD_NAND_NANDSIM
282 tristate "Support for NAND Flash Simulator"
283 depends on MTD_PARTITIONS
285 The simulator may simulate various NAND flash chips for the
288 config MTD_NAND_PLATFORM
289 tristate "Support for generic platform NAND driver"
292 This implements a generic NAND driver for on-SOC platform
293 devices. You will need to provide platform-specific functions