1 # drivers/mtd/nand/Kconfig
2 # $Id: Kconfig,v 1.35 2005/11/07 11:14:30 gleixner Exp $
4 menu "NAND Flash Device Drivers"
8 tristate "NAND Device Support"
12 This enables support for accessing all type of NAND flash
13 devices. For further information see
14 <http://www.linux-mtd.infradead.org/doc/nand.html>.
16 config MTD_NAND_VERIFY_WRITE
17 bool "Verify NAND page writes"
20 This adds an extra check when data is written to the flash. The
21 NAND flash device internally checks only bits transitioning
22 from 1 to 0. There is a rare possibility that even though the
23 device thinks the write was successful, a bit could have been
24 flipped accidentally due to device wear or something else.
26 config MTD_NAND_ECC_SMC
27 bool "NAND ECC Smart Media byte order"
31 Software ECC according to the Smart Media Specification.
32 The original Linux implementation had byte 0 and 1 swapped.
34 config MTD_NAND_AUTCPU12
35 tristate "SmartMediaCard on autronix autcpu12 board"
36 depends on MTD_NAND && ARCH_AUTCPU12
38 This enables the driver for the autronix autcpu12 board to
39 access the SmartMediaCard.
41 config MTD_NAND_EDB7312
42 tristate "Support for Cirrus Logic EBD7312 evaluation board"
43 depends on MTD_NAND && ARCH_EDB7312
45 This enables the driver for the Cirrus Logic EBD7312 evaluation
46 board to access the onboard NAND Flash.
49 tristate "iPAQ H1900 flash"
50 depends on MTD_NAND && ARCH_PXA && MTD_PARTITIONS
52 This enables the driver for the iPAQ h1900 flash.
55 tristate "NAND Flash device on SPIA board"
56 depends on ARCH_P720T && MTD_NAND
58 If you had to ask, you don't have one. Say 'N'.
60 config MTD_NAND_AMS_DELTA
61 tristate "NAND Flash device on Amstrad E3"
62 depends on MACH_AMS_DELTA && MTD_NAND
64 Support for NAND flash on Amstrad E3 (Delta).
67 tristate "NAND Flash device on OMAP H3/H2/P2 boards"
68 depends on ARM && ARCH_OMAP1 && MTD_NAND && (MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_PERSEUS2)
70 Support for NAND flash on Texas Instruments H3/H2/P2 platforms.
72 config MTD_NAND_OMAP_HW
73 bool "OMAP HW NAND Flash controller support"
74 depends on ARM && ARCH_OMAP16XX && MTD_NAND
77 Driver for TI OMAP16xx hardware NAND flash controller.
80 tristate "NAND Flash device on TOTO board"
81 depends on ARCH_OMAP && MTD_NAND && BROKEN
83 Support for NAND flash on Texas Instruments Toto platform.
85 config MTD_NAND_TS7250
86 tristate "NAND Flash device on TS-7250 board"
87 depends on MACH_TS72XX && MTD_NAND
89 Support for NAND flash on Technologic Systems TS-7250 platform.
94 config MTD_NAND_AU1550
95 tristate "Au1550/1200 NAND support"
96 depends on (SOC_AU1200 || SOC_AU1550) && MTD_NAND
98 This enables the driver for the NAND flash controller on the
101 config MTD_NAND_RTC_FROM4
102 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
103 depends on MTD_NAND && SH_SOLUTION_ENGINE
105 select REED_SOLOMON_DEC8
108 This enables the driver for the Renesas Technology AG-AND
109 flash interface board (FROM_BOARD4)
111 config MTD_NAND_PPCHAMELEONEVB
112 tristate "NAND Flash device on PPChameleonEVB board"
113 depends on PPCHAMELEONEVB && MTD_NAND && BROKEN
115 This enables the NAND flash driver on the PPChameleon EVB Board.
117 config MTD_NAND_S3C2410
118 tristate "NAND Flash support for S3C2410/S3C2440 SoC"
119 depends on ARCH_S3C2410 && MTD_NAND
121 This enables the NAND flash controller on the S3C2410 and S3C2440
124 No board specific support is done by this driver, each board
125 must advertise a platform_device for the driver to attach.
127 config MTD_NAND_S3C2410_DEBUG
128 bool "S3C2410 NAND driver debug"
129 depends on MTD_NAND_S3C2410
131 Enable debugging of the S3C2410 NAND driver
133 config MTD_NAND_S3C2410_HWECC
134 bool "S3C2410 NAND Hardware ECC"
135 depends on MTD_NAND_S3C2410
137 Enable the use of the S3C2410's internal ECC generator when
138 using NAND. Early versions of the chip have had problems with
139 incorrect ECC generation, and if using these, the default of
140 software ECC is preferable.
143 tristate "NDFC NanD Flash Controller"
144 depends on MTD_NAND && 44x
145 select MTD_NAND_ECC_SMC
147 NDFC Nand Flash Controllers are integrated in EP44x SoCs
149 config MTD_NAND_S3C2410_CLKSTOP
150 bool "S3C2410 NAND IDLE clock stop"
151 depends on MTD_NAND_S3C2410
154 Stop the clock to the NAND controller when there is no chip
155 selected to save power. This will mean there is a small delay
156 when the is NAND chip selected or released, but will save
157 approximately 5mA of power when there is nothing happening.
159 config MTD_NAND_DISKONCHIP
160 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
161 depends on MTD_NAND && EXPERIMENTAL
163 select REED_SOLOMON_DEC16
165 This is a reimplementation of M-Systems DiskOnChip 2000,
166 Millennium and Millennium Plus as a standard NAND device driver,
167 as opposed to the earlier self-contained MTD device drivers.
168 This should enable, among other things, proper JFFS2 operation on
171 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
172 bool "Advanced detection options for DiskOnChip"
173 depends on MTD_NAND_DISKONCHIP
175 This option allows you to specify nonstandard address at which to
176 probe for a DiskOnChip, or to change the detection options. You
177 are unlikely to need any of this unless you are using LinuxBIOS.
180 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
181 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
182 depends on MTD_NAND_DISKONCHIP
185 By default, the probe for DiskOnChip devices will look for a
186 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
187 This option allows you to specify a single address at which to probe
188 for the device, which is useful if you have other devices in that
189 range which get upset when they are probed.
191 (Note that on PowerPC, the normal probe will only check at
194 Normally, you should leave this set to zero, to allow the probe at
195 the normal addresses.
197 config MTD_NAND_DISKONCHIP_PROBE_HIGH
198 bool "Probe high addresses"
199 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
201 By default, the probe for DiskOnChip devices will look for a
202 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
203 This option changes to make it probe between 0xFFFC8000 and
204 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
205 useful to you. Say 'N'.
207 config MTD_NAND_DISKONCHIP_BBTWRITE
208 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
209 depends on MTD_NAND_DISKONCHIP
211 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
212 and 2000 TSOP/Alon), Linux reserves some space at the end of the
213 device for the Bad Block Table (BBT). If you have existing INFTL
214 data on your device (created by non-Linux tools such as M-Systems'
215 DOS drivers), your data might overlap the area Linux wants to use for
216 the BBT. If this is a concern for you, leave this option disabled and
217 Linux will not write BBT data into this area.
218 The downside of leaving this option disabled is that if bad blocks
219 are detected by Linux, they will not be recorded in the BBT, which
220 could cause future problems.
221 Once you enable this option, new filesystems (INFTL or others, created
222 in Linux or other operating systems) will not use the reserved area.
223 The only reason not to enable this option is to prevent damage to
224 preexisting filesystems.
225 Even if you leave this disabled, you can enable BBT writes at module
226 load time (assuming you build diskonchip as a module) with the module
227 parameter "inftl_bbt_write=1".
229 config MTD_NAND_SHARPSL
230 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
231 depends on MTD_NAND && ARCH_PXA
233 config MTD_NAND_BASLER_EXCITE
234 tristate "Support for NAND Flash on Basler eXcite"
235 depends on MTD_NAND && BASLER_EXCITE
237 This enables the driver for the NAND flash device found on the
238 Basler eXcite Smart Camera. If built as a module, the driver
239 will be named "excite_nandflash.ko".
242 tristate "NAND support for OLPC CAFÉ chip"
243 depends on MTD_NAND && PCI
245 Use NAND flash attached to the CAFÉ chip designed for the $100
248 config MTD_NAND_CS553X
249 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
250 depends on MTD_NAND && X86_32 && (X86_PC || X86_GENERICARCH)
252 The CS553x companion chips for the AMD Geode processor
253 include NAND flash controllers with built-in hardware ECC
254 capabilities; enabling this option will allow you to use
255 these. The driver will check the MSRs to verify that the
256 controller is enabled for NAND, and currently requires that
257 the controller be in MMIO mode.
259 If you say "m", the module will be called "cs553x_nand.ko".
262 bool "Support for NAND Flash / SmartMedia on AT91"
263 depends on MTD_NAND && ARCH_AT91
265 Enables support for NAND Flash / Smart Media Card interface
266 on Atmel AT91 processors.
268 config MTD_NAND_NANDSIM
269 tristate "Support for NAND Flash Simulator"
270 depends on MTD_NAND && MTD_PARTITIONS
272 The simulator may simulate various NAND flash chips for the