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_MUSEUM_IDS
35 bool "Enable chip ids for obsolete ancient NAND devices"
39 Enable this option only when your board has first generation
40 NAND chips (page size 256 byte, erase size 4-8KiB). The IDs
41 of these chips were reused by later, larger chips.
43 config MTD_NAND_AUTCPU12
44 tristate "SmartMediaCard on autronix autcpu12 board"
45 depends on MTD_NAND && ARCH_AUTCPU12
47 This enables the driver for the autronix autcpu12 board to
48 access the SmartMediaCard.
50 config MTD_NAND_EDB7312
51 tristate "Support for Cirrus Logic EBD7312 evaluation board"
52 depends on MTD_NAND && ARCH_EDB7312
54 This enables the driver for the Cirrus Logic EBD7312 evaluation
55 board to access the onboard NAND Flash.
58 tristate "iPAQ H1900 flash"
59 depends on MTD_NAND && ARCH_PXA && MTD_PARTITIONS
61 This enables the driver for the iPAQ h1900 flash.
64 tristate "NAND Flash device on SPIA board"
65 depends on ARCH_P720T && MTD_NAND
67 If you had to ask, you don't have one. Say 'N'.
69 config MTD_NAND_AMS_DELTA
70 tristate "NAND Flash device on Amstrad E3"
71 depends on MACH_AMS_DELTA && MTD_NAND
73 Support for NAND flash on Amstrad E3 (Delta).
76 tristate "NAND Flash device on TOTO board"
77 depends on ARCH_OMAP && MTD_NAND && BROKEN
79 Support for NAND flash on Texas Instruments Toto platform.
81 config MTD_NAND_TS7250
82 tristate "NAND Flash device on TS-7250 board"
83 depends on MACH_TS72XX && MTD_NAND
85 Support for NAND flash on Technologic Systems TS-7250 platform.
90 config MTD_NAND_AU1550
91 tristate "Au1550/1200 NAND support"
92 depends on (SOC_AU1200 || SOC_AU1550) && MTD_NAND
94 This enables the driver for the NAND flash controller on the
97 config MTD_NAND_RTC_FROM4
98 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
99 depends on MTD_NAND && SH_SOLUTION_ENGINE
101 select REED_SOLOMON_DEC8
104 This enables the driver for the Renesas Technology AG-AND
105 flash interface board (FROM_BOARD4)
107 config MTD_NAND_PPCHAMELEONEVB
108 tristate "NAND Flash device on PPChameleonEVB board"
109 depends on PPCHAMELEONEVB && MTD_NAND && BROKEN
111 This enables the NAND flash driver on the PPChameleon EVB Board.
113 config MTD_NAND_S3C2410
114 tristate "NAND Flash support for S3C2410/S3C2440 SoC"
115 depends on ARCH_S3C2410 && MTD_NAND
117 This enables the NAND flash controller on the S3C2410 and S3C2440
120 No board specific support is done by this driver, each board
121 must advertise a platform_device for the driver to attach.
123 config MTD_NAND_S3C2410_DEBUG
124 bool "S3C2410 NAND driver debug"
125 depends on MTD_NAND_S3C2410
127 Enable debugging of the S3C2410 NAND driver
129 config MTD_NAND_S3C2410_HWECC
130 bool "S3C2410 NAND Hardware ECC"
131 depends on MTD_NAND_S3C2410
133 Enable the use of the S3C2410's internal ECC generator when
134 using NAND. Early versions of the chip have had problems with
135 incorrect ECC generation, and if using these, the default of
136 software ECC is preferable.
139 tristate "NDFC NanD Flash Controller"
140 depends on MTD_NAND && 44x
141 select MTD_NAND_ECC_SMC
143 NDFC Nand Flash Controllers are integrated in EP44x SoCs
145 config MTD_NAND_S3C2410_CLKSTOP
146 bool "S3C2410 NAND IDLE clock stop"
147 depends on MTD_NAND_S3C2410
150 Stop the clock to the NAND controller when there is no chip
151 selected to save power. This will mean there is a small delay
152 when the is NAND chip selected or released, but will save
153 approximately 5mA of power when there is nothing happening.
155 config MTD_NAND_DISKONCHIP
156 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
157 depends on MTD_NAND && EXPERIMENTAL
159 select REED_SOLOMON_DEC16
161 This is a reimplementation of M-Systems DiskOnChip 2000,
162 Millennium and Millennium Plus as a standard NAND device driver,
163 as opposed to the earlier self-contained MTD device drivers.
164 This should enable, among other things, proper JFFS2 operation on
167 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
168 bool "Advanced detection options for DiskOnChip"
169 depends on MTD_NAND_DISKONCHIP
171 This option allows you to specify nonstandard address at which to
172 probe for a DiskOnChip, or to change the detection options. You
173 are unlikely to need any of this unless you are using LinuxBIOS.
176 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
177 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
178 depends on MTD_NAND_DISKONCHIP
181 By default, the probe for DiskOnChip devices will look for a
182 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
183 This option allows you to specify a single address at which to probe
184 for the device, which is useful if you have other devices in that
185 range which get upset when they are probed.
187 (Note that on PowerPC, the normal probe will only check at
190 Normally, you should leave this set to zero, to allow the probe at
191 the normal addresses.
193 config MTD_NAND_DISKONCHIP_PROBE_HIGH
194 bool "Probe high addresses"
195 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
197 By default, the probe for DiskOnChip devices will look for a
198 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
199 This option changes to make it probe between 0xFFFC8000 and
200 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
201 useful to you. Say 'N'.
203 config MTD_NAND_DISKONCHIP_BBTWRITE
204 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
205 depends on MTD_NAND_DISKONCHIP
207 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
208 and 2000 TSOP/Alon), Linux reserves some space at the end of the
209 device for the Bad Block Table (BBT). If you have existing INFTL
210 data on your device (created by non-Linux tools such as M-Systems'
211 DOS drivers), your data might overlap the area Linux wants to use for
212 the BBT. If this is a concern for you, leave this option disabled and
213 Linux will not write BBT data into this area.
214 The downside of leaving this option disabled is that if bad blocks
215 are detected by Linux, they will not be recorded in the BBT, which
216 could cause future problems.
217 Once you enable this option, new filesystems (INFTL or others, created
218 in Linux or other operating systems) will not use the reserved area.
219 The only reason not to enable this option is to prevent damage to
220 preexisting filesystems.
221 Even if you leave this disabled, you can enable BBT writes at module
222 load time (assuming you build diskonchip as a module) with the module
223 parameter "inftl_bbt_write=1".
225 config MTD_NAND_SHARPSL
226 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
227 depends on MTD_NAND && ARCH_PXA
229 config MTD_NAND_BASLER_EXCITE
230 tristate "Support for NAND Flash on Basler eXcite"
231 depends on MTD_NAND && BASLER_EXCITE
233 This enables the driver for the NAND flash device found on the
234 Basler eXcite Smart Camera. If built as a module, the driver
235 will be named "excite_nandflash.ko".
238 tristate "NAND support for OLPC CAFÉ chip"
239 depends on MTD_NAND && PCI
241 Use NAND flash attached to the CAFÉ chip designed for the $100
244 config MTD_NAND_CS553X
245 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
246 depends on MTD_NAND && X86_32 && (X86_PC || X86_GENERICARCH)
248 The CS553x companion chips for the AMD Geode processor
249 include NAND flash controllers with built-in hardware ECC
250 capabilities; enabling this option will allow you to use
251 these. The driver will check the MSRs to verify that the
252 controller is enabled for NAND, and currently requires that
253 the controller be in MMIO mode.
255 If you say "m", the module will be called "cs553x_nand.ko".
258 bool "Support for NAND Flash / SmartMedia on AT91"
259 depends on MTD_NAND && ARCH_AT91
261 Enables support for NAND Flash / Smart Media Card interface
262 on Atmel AT91 processors.
264 config MTD_NAND_NANDSIM
265 tristate "Support for NAND Flash Simulator"
266 depends on MTD_NAND && MTD_PARTITIONS
268 The simulator may simulate various NAND flash chips for the