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 TOTO board"
68 depends on ARCH_OMAP && MTD_NAND && BROKEN
70 Support for NAND flash on Texas Instruments Toto platform.
72 config MTD_NAND_TS7250
73 tristate "NAND Flash device on TS-7250 board"
74 depends on MACH_TS72XX && MTD_NAND
76 Support for NAND flash on Technologic Systems TS-7250 platform.
81 config MTD_NAND_AU1550
82 tristate "Au1550/1200 NAND support"
83 depends on (SOC_AU1200 || SOC_AU1550) && MTD_NAND
85 This enables the driver for the NAND flash controller on the
88 config MTD_NAND_RTC_FROM4
89 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
90 depends on MTD_NAND && SH_SOLUTION_ENGINE
92 select REED_SOLOMON_DEC8
95 This enables the driver for the Renesas Technology AG-AND
96 flash interface board (FROM_BOARD4)
98 config MTD_NAND_PPCHAMELEONEVB
99 tristate "NAND Flash device on PPChameleonEVB board"
100 depends on PPCHAMELEONEVB && MTD_NAND && BROKEN
102 This enables the NAND flash driver on the PPChameleon EVB Board.
104 config MTD_NAND_S3C2410
105 tristate "NAND Flash support for S3C2410/S3C2440 SoC"
106 depends on ARCH_S3C2410 && MTD_NAND
108 This enables the NAND flash controller on the S3C2410 and S3C2440
111 No board specific support is done by this driver, each board
112 must advertise a platform_device for the driver to attach.
114 config MTD_NAND_S3C2410_DEBUG
115 bool "S3C2410 NAND driver debug"
116 depends on MTD_NAND_S3C2410
118 Enable debugging of the S3C2410 NAND driver
120 config MTD_NAND_S3C2410_HWECC
121 bool "S3C2410 NAND Hardware ECC"
122 depends on MTD_NAND_S3C2410
124 Enable the use of the S3C2410's internal ECC generator when
125 using NAND. Early versions of the chip have had problems with
126 incorrect ECC generation, and if using these, the default of
127 software ECC is preferable.
130 tristate "NDFC NanD Flash Controller"
131 depends on MTD_NAND && 44x
132 select MTD_NAND_ECC_SMC
134 NDFC Nand Flash Controllers are integrated in EP44x SoCs
136 config MTD_NAND_S3C2410_CLKSTOP
137 bool "S3C2410 NAND IDLE clock stop"
138 depends on MTD_NAND_S3C2410
141 Stop the clock to the NAND controller when there is no chip
142 selected to save power. This will mean there is a small delay
143 when the is NAND chip selected or released, but will save
144 approximately 5mA of power when there is nothing happening.
146 config MTD_NAND_DISKONCHIP
147 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
148 depends on MTD_NAND && EXPERIMENTAL
150 select REED_SOLOMON_DEC16
152 This is a reimplementation of M-Systems DiskOnChip 2000,
153 Millennium and Millennium Plus as a standard NAND device driver,
154 as opposed to the earlier self-contained MTD device drivers.
155 This should enable, among other things, proper JFFS2 operation on
158 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
159 bool "Advanced detection options for DiskOnChip"
160 depends on MTD_NAND_DISKONCHIP
162 This option allows you to specify nonstandard address at which to
163 probe for a DiskOnChip, or to change the detection options. You
164 are unlikely to need any of this unless you are using LinuxBIOS.
167 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
168 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
169 depends on MTD_NAND_DISKONCHIP
172 By default, the probe for DiskOnChip devices will look for a
173 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
174 This option allows you to specify a single address at which to probe
175 for the device, which is useful if you have other devices in that
176 range which get upset when they are probed.
178 (Note that on PowerPC, the normal probe will only check at
181 Normally, you should leave this set to zero, to allow the probe at
182 the normal addresses.
184 config MTD_NAND_DISKONCHIP_PROBE_HIGH
185 bool "Probe high addresses"
186 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
188 By default, the probe for DiskOnChip devices will look for a
189 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
190 This option changes to make it probe between 0xFFFC8000 and
191 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
192 useful to you. Say 'N'.
194 config MTD_NAND_DISKONCHIP_BBTWRITE
195 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
196 depends on MTD_NAND_DISKONCHIP
198 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
199 and 2000 TSOP/Alon), Linux reserves some space at the end of the
200 device for the Bad Block Table (BBT). If you have existing INFTL
201 data on your device (created by non-Linux tools such as M-Systems'
202 DOS drivers), your data might overlap the area Linux wants to use for
203 the BBT. If this is a concern for you, leave this option disabled and
204 Linux will not write BBT data into this area.
205 The downside of leaving this option disabled is that if bad blocks
206 are detected by Linux, they will not be recorded in the BBT, which
207 could cause future problems.
208 Once you enable this option, new filesystems (INFTL or others, created
209 in Linux or other operating systems) will not use the reserved area.
210 The only reason not to enable this option is to prevent damage to
211 preexisting filesystems.
212 Even if you leave this disabled, you can enable BBT writes at module
213 load time (assuming you build diskonchip as a module) with the module
214 parameter "inftl_bbt_write=1".
216 config MTD_NAND_SHARPSL
217 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
218 depends on MTD_NAND && ARCH_PXA
220 config MTD_NAND_BASLER_EXCITE
221 tristate "Support for NAND Flash on Basler eXcite"
222 depends on MTD_NAND && BASLER_EXCITE
224 This enables the driver for the NAND flash device found on the
225 Basler eXcite Smart Camera. If built as a module, the driver
226 will be named "excite_nandflash.ko".
229 tristate "NAND support for OLPC CAFÉ chip"
230 depends on MTD_NAND && PCI
232 Use NAND flash attached to the CAFÉ chip designed for the $100
235 config MTD_NAND_CS553X
236 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
237 depends on MTD_NAND && X86_32 && (X86_PC || X86_GENERICARCH)
239 The CS553x companion chips for the AMD Geode processor
240 include NAND flash controllers with built-in hardware ECC
241 capabilities; enabling this option will allow you to use
242 these. The driver will check the MSRs to verify that the
243 controller is enabled for NAND, and currently requires that
244 the controller be in MMIO mode.
246 If you say "m", the module will be called "cs553x_nand.ko".
249 bool "Support for NAND Flash / SmartMedia on AT91"
250 depends on MTD_NAND && ARCH_AT91
252 Enables support for NAND Flash / Smart Media Card interface
253 on Atmel AT91 processors.
255 config MTD_NAND_NANDSIM
256 tristate "Support for NAND Flash Simulator"
257 depends on MTD_NAND && MTD_PARTITIONS
259 The simulator may simulate various NAND flash chips for the