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
94 This enables the driver for the Renesas Technology AG-AND
95 flash interface board (FROM_BOARD4)
97 config MTD_NAND_PPCHAMELEONEVB
98 tristate "NAND Flash device on PPChameleonEVB board"
99 depends on PPCHAMELEONEVB && MTD_NAND && BROKEN
101 This enables the NAND flash driver on the PPChameleon EVB Board.
103 config MTD_NAND_S3C2410
104 tristate "NAND Flash support for S3C2410/S3C2440 SoC"
105 depends on ARCH_S3C2410 && MTD_NAND
107 This enables the NAND flash controller on the S3C2410 and S3C2440
110 No board specific support is done by this driver, each board
111 must advertise a platform_device for the driver to attach.
113 config MTD_NAND_S3C2410_DEBUG
114 bool "S3C2410 NAND driver debug"
115 depends on MTD_NAND_S3C2410
117 Enable debugging of the S3C2410 NAND driver
119 config MTD_NAND_S3C2410_HWECC
120 bool "S3C2410 NAND Hardware ECC"
121 depends on MTD_NAND_S3C2410
123 Enable the use of the S3C2410's internal ECC generator when
124 using NAND. Early versions of the chip have had problems with
125 incorrect ECC generation, and if using these, the default of
126 software ECC is preferable.
128 If you lay down a device with the hardware ECC, then you will
129 currently not be able to switch to software, as there is no
130 implementation for ECC method used by the S3C2410
133 tristate "NDFC NanD Flash Controller"
134 depends on MTD_NAND && 44x
136 NDFC Nand Flash Controllers are integrated in EP44x SoCs
138 config MTD_NAND_S3C2410_CLKSTOP
139 bool "S3C2410 NAND IDLE clock stop"
140 depends on MTD_NAND_S3C2410
143 Stop the clock to the NAND controller when there is no chip
144 selected to save power. This will mean there is a small delay
145 when the is NAND chip selected or released, but will save
146 approximately 5mA of power when there is nothing happening.
148 config MTD_NAND_DISKONCHIP
149 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
150 depends on MTD_NAND && EXPERIMENTAL
152 select REED_SOLOMON_DEC16
154 This is a reimplementation of M-Systems DiskOnChip 2000,
155 Millennium and Millennium Plus as a standard NAND device driver,
156 as opposed to the earlier self-contained MTD device drivers.
157 This should enable, among other things, proper JFFS2 operation on
160 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
161 bool "Advanced detection options for DiskOnChip"
162 depends on MTD_NAND_DISKONCHIP
164 This option allows you to specify nonstandard address at which to
165 probe for a DiskOnChip, or to change the detection options. You
166 are unlikely to need any of this unless you are using LinuxBIOS.
169 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
170 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
171 depends on MTD_NAND_DISKONCHIP
174 By default, the probe for DiskOnChip devices will look for a
175 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
176 This option allows you to specify a single address at which to probe
177 for the device, which is useful if you have other devices in that
178 range which get upset when they are probed.
180 (Note that on PowerPC, the normal probe will only check at
183 Normally, you should leave this set to zero, to allow the probe at
184 the normal addresses.
186 config MTD_NAND_DISKONCHIP_PROBE_HIGH
187 bool "Probe high addresses"
188 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
190 By default, the probe for DiskOnChip devices will look for a
191 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
192 This option changes to make it probe between 0xFFFC8000 and
193 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
194 useful to you. Say 'N'.
196 config MTD_NAND_DISKONCHIP_BBTWRITE
197 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
198 depends on MTD_NAND_DISKONCHIP
200 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
201 and 2000 TSOP/Alon), Linux reserves some space at the end of the
202 device for the Bad Block Table (BBT). If you have existing INFTL
203 data on your device (created by non-Linux tools such as M-Systems'
204 DOS drivers), your data might overlap the area Linux wants to use for
205 the BBT. If this is a concern for you, leave this option disabled and
206 Linux will not write BBT data into this area.
207 The downside of leaving this option disabled is that if bad blocks
208 are detected by Linux, they will not be recorded in the BBT, which
209 could cause future problems.
210 Once you enable this option, new filesystems (INFTL or others, created
211 in Linux or other operating systems) will not use the reserved area.
212 The only reason not to enable this option is to prevent damage to
213 preexisting filesystems.
214 Even if you leave this disabled, you can enable BBT writes at module
215 load time (assuming you build diskonchip as a module) with the module
216 parameter "inftl_bbt_write=1".
218 config MTD_NAND_SHARPSL
219 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
220 depends on MTD_NAND && ARCH_PXA
222 config MTD_NAND_CS553X
223 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
224 depends on MTD_NAND && X86_32 && (X86_PC || X86_GENERICARCH)
226 The CS553x companion chips for the AMD Geode processor
227 include NAND flash controllers with built-in hardware ECC
228 capabilities; enabling this option will allow you to use
229 these. The driver will check the MSRs to verify that the
230 controller is enabled for NAND, and currently requires that
231 the controller be in MMIO mode.
233 If you say "m", the module will be called "cs553x_nand.ko".
235 config MTD_NAND_NANDSIM
236 tristate "Support for NAND Flash Simulator"
237 depends on MTD_NAND && MTD_PARTITIONS
239 The simulator may simulate various NAND flash chips for the