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Linus Torvalds1da177e2005-04-16 15:20:36 -07001# drivers/mtd/nand/Kconfig
Thomas Gleixner61b03bd2005-11-07 11:15:49 +00002# $Id: Kconfig,v 1.35 2005/11/07 11:14:30 gleixner Exp $
Linus Torvalds1da177e2005-04-16 15:20:36 -07003
4menu "NAND Flash Device Drivers"
5 depends on MTD!=n
6
7config MTD_NAND
8 tristate "NAND Device Support"
9 depends on MTD
10 select MTD_NAND_IDS
11 help
12 This enables support for accessing all type of NAND flash
13 devices. For further information see
Artem B. Bityutskiy220b0f52006-07-05 11:04:02 +040014 <http://www.linux-mtd.infradead.org/doc/nand.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -070015
16config MTD_NAND_VERIFY_WRITE
17 bool "Verify NAND page writes"
18 depends on MTD_NAND
19 help
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
Matt LaPlante09509602006-10-03 22:31:37 +020024 flipped accidentally due to device wear or something else.
Linus Torvalds1da177e2005-04-16 15:20:36 -070025
Thomas Gleixner819d6a32006-05-23 11:32:45 +020026config MTD_NAND_ECC_SMC
27 bool "NAND ECC Smart Media byte order"
28 depends on MTD_NAND
29 default n
30 help
31 Software ECC according to the Smart Media Specification.
32 The original Linux implementation had byte 0 and 1 swapped.
33
Linus Torvalds1da177e2005-04-16 15:20:36 -070034config MTD_NAND_AUTCPU12
35 tristate "SmartMediaCard on autronix autcpu12 board"
Thomas Gleixner30966172005-11-07 02:49:43 +010036 depends on MTD_NAND && ARCH_AUTCPU12
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 help
Thomas Gleixner61b03bd2005-11-07 11:15:49 +000038 This enables the driver for the autronix autcpu12 board to
Linus Torvalds1da177e2005-04-16 15:20:36 -070039 access the SmartMediaCard.
40
41config MTD_NAND_EDB7312
42 tristate "Support for Cirrus Logic EBD7312 evaluation board"
Thomas Gleixner30966172005-11-07 02:49:43 +010043 depends on MTD_NAND && ARCH_EDB7312
Linus Torvalds1da177e2005-04-16 15:20:36 -070044 help
Thomas Gleixner61b03bd2005-11-07 11:15:49 +000045 This enables the driver for the Cirrus Logic EBD7312 evaluation
Linus Torvalds1da177e2005-04-16 15:20:36 -070046 board to access the onboard NAND Flash.
47
48config MTD_NAND_H1900
49 tristate "iPAQ H1900 flash"
Thomas Gleixner30966172005-11-07 02:49:43 +010050 depends on MTD_NAND && ARCH_PXA && MTD_PARTITIONS
Linus Torvalds1da177e2005-04-16 15:20:36 -070051 help
52 This enables the driver for the iPAQ h1900 flash.
53
54config MTD_NAND_SPIA
55 tristate "NAND Flash device on SPIA board"
Thomas Gleixner30966172005-11-07 02:49:43 +010056 depends on ARCH_P720T && MTD_NAND
Linus Torvalds1da177e2005-04-16 15:20:36 -070057 help
58 If you had to ask, you don't have one. Say 'N'.
59
Jonathan McDowell3d12c0c2006-05-21 18:11:55 +010060config MTD_NAND_AMS_DELTA
61 tristate "NAND Flash device on Amstrad E3"
62 depends on MACH_AMS_DELTA && MTD_NAND
63 help
64 Support for NAND flash on Amstrad E3 (Delta).
65
Linus Torvalds1da177e2005-04-16 15:20:36 -070066config MTD_NAND_TOTO
67 tristate "NAND Flash device on TOTO board"
Thomas Gleixner85b85fe2006-05-23 22:03:39 +020068 depends on ARCH_OMAP && MTD_NAND && BROKEN
Linus Torvalds1da177e2005-04-16 15:20:36 -070069 help
70 Support for NAND flash on Texas Instruments Toto platform.
71
Lennert Buytenhek7d532dd2006-04-30 10:36:38 +020072config MTD_NAND_TS7250
73 tristate "NAND Flash device on TS-7250 board"
74 depends on MACH_TS72XX && MTD_NAND
75 help
76 Support for NAND flash on Technologic Systems TS-7250 platform.
77
Linus Torvalds1da177e2005-04-16 15:20:36 -070078config MTD_NAND_IDS
79 tristate
80
Linus Torvalds1da177e2005-04-16 15:20:36 -070081config MTD_NAND_AU1550
Pete Popovef6f0d12005-09-23 02:44:58 +010082 tristate "Au1550/1200 NAND support"
83 depends on (SOC_AU1200 || SOC_AU1550) && MTD_NAND
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 help
85 This enables the driver for the NAND flash controller on the
86 AMD/Alchemy 1550 SOC.
87
88config MTD_NAND_RTC_FROM4
89 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
90 depends on MTD_NAND && SH_SOLUTION_ENGINE
91 select REED_SOLOMON
92 select REED_SOLOMON_DEC8
Adrian Bunk1605cd32006-11-22 05:38:11 +010093 select BITREVERSE
Linus Torvalds1da177e2005-04-16 15:20:36 -070094 help
Thomas Gleixner61b03bd2005-11-07 11:15:49 +000095 This enables the driver for the Renesas Technology AG-AND
Linus Torvalds1da177e2005-04-16 15:20:36 -070096 flash interface board (FROM_BOARD4)
97
98config MTD_NAND_PPCHAMELEONEVB
99 tristate "NAND Flash device on PPChameleonEVB board"
Thomas Gleixner85b85fe2006-05-23 22:03:39 +0200100 depends on PPCHAMELEONEVB && MTD_NAND && BROKEN
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101 help
102 This enables the NAND flash driver on the PPChameleon EVB Board.
103
104config MTD_NAND_S3C2410
Ben Dooksa4f957f2005-06-20 12:48:25 +0100105 tristate "NAND Flash support for S3C2410/S3C2440 SoC"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106 depends on ARCH_S3C2410 && MTD_NAND
107 help
Ben Dooksa4f957f2005-06-20 12:48:25 +0100108 This enables the NAND flash controller on the S3C2410 and S3C2440
109 SoCs
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110
Egry Gábor4992a9e2006-05-12 17:35:02 +0100111 No board specific support is done by this driver, each board
Thomas Gleixner61b03bd2005-11-07 11:15:49 +0000112 must advertise a platform_device for the driver to attach.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113
114config MTD_NAND_S3C2410_DEBUG
115 bool "S3C2410 NAND driver debug"
116 depends on MTD_NAND_S3C2410
117 help
118 Enable debugging of the S3C2410 NAND driver
119
120config MTD_NAND_S3C2410_HWECC
121 bool "S3C2410 NAND Hardware ECC"
122 depends on MTD_NAND_S3C2410
123 help
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.
128
Thomas Gleixnerce4c61f2006-05-23 11:43:28 +0200129config MTD_NAND_NDFC
130 tristate "NDFC NanD Flash Controller"
131 depends on MTD_NAND && 44x
Timo Lindhorst418b2e52006-12-05 15:23:33 +0100132 select MTD_NAND_ECC_SMC
Thomas Gleixnerce4c61f2006-05-23 11:43:28 +0200133 help
134 NDFC Nand Flash Controllers are integrated in EP44x SoCs
135
Ben Dooksd1fef3c2006-06-19 09:29:38 +0100136config MTD_NAND_S3C2410_CLKSTOP
137 bool "S3C2410 NAND IDLE clock stop"
138 depends on MTD_NAND_S3C2410
139 default n
140 help
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.
145
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146config MTD_NAND_DISKONCHIP
147 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
148 depends on MTD_NAND && EXPERIMENTAL
149 select REED_SOLOMON
150 select REED_SOLOMON_DEC16
151 help
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
156 these devices.
157
158config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
159 bool "Advanced detection options for DiskOnChip"
160 depends on MTD_NAND_DISKONCHIP
161 help
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.
165 Say 'N'.
166
167config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
168 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
169 depends on MTD_NAND_DISKONCHIP
170 default "0"
171 ---help---
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.
177
178 (Note that on PowerPC, the normal probe will only check at
179 0xE4000000.)
180
181 Normally, you should leave this set to zero, to allow the probe at
182 the normal addresses.
183
184config MTD_NAND_DISKONCHIP_PROBE_HIGH
185 bool "Probe high addresses"
186 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
187 help
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'.
193
194config MTD_NAND_DISKONCHIP_BBTWRITE
195 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
196 depends on MTD_NAND_DISKONCHIP
197 help
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".
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215
Adrian Bunk54af6b42006-03-31 02:29:43 -0800216config MTD_NAND_SHARPSL
217 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
218 depends on MTD_NAND && ARCH_PXA
219
David Woodhousec45aa052006-10-22 02:17:05 +0100220config MTD_NAND_CAFE
221 tristate "NAND support for OLPC CAFÉ chip"
David Woodhouseaa8f1272007-02-05 13:32:55 +0000222 depends on MTD_NAND && PCI
David Woodhousec45aa052006-10-22 02:17:05 +0100223 help
224 Use NAND flash attached to the CAFÉ chip designed for the $100
225 laptop.
226
David Woodhouse179fdc32006-05-11 22:35:28 +0100227config MTD_NAND_CS553X
228 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
David Woodhouse33280ea2006-05-29 11:24:29 +0100229 depends on MTD_NAND && X86_32 && (X86_PC || X86_GENERICARCH)
David Woodhousef41a5f82006-05-16 13:11:47 +0100230 help
231 The CS553x companion chips for the AMD Geode processor
232 include NAND flash controllers with built-in hardware ECC
233 capabilities; enabling this option will allow you to use
234 these. The driver will check the MSRs to verify that the
235 controller is enabled for NAND, and currently requires that
236 the controller be in MMIO mode.
237
238 If you say "m", the module will be called "cs553x_nand.ko".
239
Andrew Victor42cb1402006-10-19 18:24:35 +0200240config MTD_NAND_AT91
241 bool "Support for NAND Flash / SmartMedia on AT91"
242 depends on MTD_NAND && ARCH_AT91
243 help
244 Enables support for NAND Flash / Smart Media Card interface
245 on Atmel AT91 processors.
246
Adrian Bunk54af6b42006-03-31 02:29:43 -0800247config MTD_NAND_NANDSIM
248 tristate "Support for NAND Flash Simulator"
249 depends on MTD_NAND && MTD_PARTITIONS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250 help
David Woodhousef41a5f82006-05-16 13:11:47 +0100251 The simulator may simulate various NAND flash chips for the
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252 MTD nand layer.
Adrian Bunk54af6b42006-03-31 02:29:43 -0800253
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254endmenu