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'.
61 tristate "NAND Flash device on M5329 board"
62 depends on M5329EVB && MTD_NAND
64 If you had to ask, you don't have one. Say 'N'.
67 config MTD_NAND_AMS_DELTA
68 tristate "NAND Flash device on Amstrad E3"
69 depends on MACH_AMS_DELTA && MTD_NAND
71 Support for NAND flash on Amstrad E3 (Delta).
74 tristate "NAND Flash device on TOTO board"
75 depends on ARCH_OMAP && MTD_NAND && BROKEN
77 Support for NAND flash on Texas Instruments Toto platform.
79 config MTD_NAND_TS7250
80 tristate "NAND Flash device on TS-7250 board"
81 depends on MACH_TS72XX && MTD_NAND
83 Support for NAND flash on Technologic Systems TS-7250 platform.
88 config MTD_NAND_AU1550
89 tristate "Au1550/1200 NAND support"
90 depends on (SOC_AU1200 || SOC_AU1550) && MTD_NAND
92 This enables the driver for the NAND flash controller on the
95 config MTD_NAND_RTC_FROM4
96 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
97 depends on MTD_NAND && SH_SOLUTION_ENGINE
99 select REED_SOLOMON_DEC8
101 This enables the driver for the Renesas Technology AG-AND
102 flash interface board (FROM_BOARD4)
104 config MTD_NAND_PPCHAMELEONEVB
105 tristate "NAND Flash device on PPChameleonEVB board"
106 depends on PPCHAMELEONEVB && MTD_NAND && BROKEN
108 This enables the NAND flash driver on the PPChameleon EVB Board.
110 config MTD_NAND_S3C2410
111 tristate "NAND Flash support for S3C2410/S3C2440 SoC"
112 depends on ARCH_S3C2410 && MTD_NAND
114 This enables the NAND flash controller on the S3C2410 and S3C2440
117 No board specific support is done by this driver, each board
118 must advertise a platform_device for the driver to attach.
120 config MTD_NAND_S3C2410_DEBUG
121 bool "S3C2410 NAND driver debug"
122 depends on MTD_NAND_S3C2410
124 Enable debugging of the S3C2410 NAND driver
126 config MTD_NAND_S3C2410_HWECC
127 bool "S3C2410 NAND Hardware ECC"
128 depends on MTD_NAND_S3C2410
130 Enable the use of the S3C2410's internal ECC generator when
131 using NAND. Early versions of the chip have had problems with
132 incorrect ECC generation, and if using these, the default of
133 software ECC is preferable.
135 If you lay down a device with the hardware ECC, then you will
136 currently not be able to switch to software, as there is no
137 implementation for ECC method used by the S3C2410
140 tristate "NDFC NanD Flash Controller"
141 depends on MTD_NAND && 44x
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_CS553X
230 tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
231 depends on MTD_NAND && X86_32 && (X86_PC || X86_GENERICARCH)
233 The CS553x companion chips for the AMD Geode processor
234 include NAND flash controllers with built-in hardware ECC
235 capabilities; enabling this option will allow you to use
236 these. The driver will check the MSRs to verify that the
237 controller is enabled for NAND, and currently requires that
238 the controller be in MMIO mode.
240 If you say "m", the module will be called "cs553x_nand.ko".
242 config MTD_NAND_NANDSIM
243 tristate "Support for NAND Flash Simulator"
244 depends on MTD_NAND && MTD_PARTITIONS
246 The simulator may simulate various NAND flash chips for the