1 # drivers/mtd/nand/Kconfig
2 # $Id: Kconfig,v 1.26 2005/01/05 12:42:24 dwmw2 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/tech/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 accidentaly due to device wear or something else.
26 config MTD_NAND_AUTCPU12
27 tristate "SmartMediaCard on autronix autcpu12 board"
28 depends on ARM && MTD_NAND && ARCH_AUTCPU12
30 This enables the driver for the autronix autcpu12 board to
31 access the SmartMediaCard.
33 config MTD_NAND_EDB7312
34 tristate "Support for Cirrus Logic EBD7312 evaluation board"
35 depends on ARM && MTD_NAND && ARCH_EDB7312
37 This enables the driver for the Cirrus Logic EBD7312 evaluation
38 board to access the onboard NAND Flash.
41 tristate "iPAQ H1900 flash"
42 depends on ARM && MTD_NAND && ARCH_PXA && MTD_PARTITIONS
44 This enables the driver for the iPAQ h1900 flash.
47 tristate "NAND Flash device on SPIA board"
48 depends on ARM && ARCH_P720T && MTD_NAND
50 If you had to ask, you don't have one. Say 'N'.
53 tristate "NAND Flash device on TOTO board"
54 depends on ARM && ARCH_OMAP && MTD_NAND
56 Support for NAND flash on Texas Instruments Toto platform.
61 config MTD_NAND_TX4925NDFMC
62 tristate "SmartMedia Card on Toshiba RBTX4925 reference board"
63 depends on TOSHIBA_RBTX4925 && MTD_NAND && TOSHIBA_RBTX4925_MPLEX_NAND
65 This enables the driver for the NAND flash device found on the
66 Toshiba RBTX4925 reference board, which is a SmartMediaCard.
68 config MTD_NAND_TX4938NDFMC
69 tristate "NAND Flash device on Toshiba RBTX4938 reference board"
70 depends on TOSHIBA_RBTX4938 && MTD_NAND && TOSHIBA_RBTX4938_MPLEX_NAND
72 This enables the driver for the NAND flash device found on the
73 Toshiba RBTX4938 reference board.
75 config MTD_NAND_AU1550
76 tristate "Au1550 NAND support"
77 depends on SOC_AU1550 && MTD_NAND
79 This enables the driver for the NAND flash controller on the
82 config MTD_NAND_RTC_FROM4
83 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
84 depends on MTD_NAND && SH_SOLUTION_ENGINE
86 select REED_SOLOMON_DEC8
88 This enables the driver for the Renesas Technology AG-AND
89 flash interface board (FROM_BOARD4)
91 config MTD_NAND_PPCHAMELEONEVB
92 tristate "NAND Flash device on PPChameleonEVB board"
93 depends on PPCHAMELEONEVB && MTD_NAND
95 This enables the NAND flash driver on the PPChameleon EVB Board.
97 config MTD_NAND_S3C2410
98 tristate "NAND Flash support for S3C2410 SoC"
99 depends on ARCH_S3C2410 && MTD_NAND
101 This enables the NAND flash controller on the S3C2410.
103 No board specfic support is done by this driver, each board
104 must advertise a platform_device for the driver to attach.
106 config MTD_NAND_S3C2410_DEBUG
107 bool "S3C2410 NAND driver debug"
108 depends on MTD_NAND_S3C2410
110 Enable debugging of the S3C2410 NAND driver
112 config MTD_NAND_S3C2410_HWECC
113 bool "S3C2410 NAND Hardware ECC"
114 depends on MTD_NAND_S3C2410
116 Enable the use of the S3C2410's internal ECC generator when
117 using NAND. Early versions of the chip have had problems with
118 incorrect ECC generation, and if using these, the default of
119 software ECC is preferable.
121 If you lay down a device with the hardware ECC, then you will
122 currently not be able to switch to software, as there is no
123 implementation for ECC method used by the S3C2410
125 config MTD_NAND_DISKONCHIP
126 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
127 depends on MTD_NAND && EXPERIMENTAL
129 select REED_SOLOMON_DEC16
131 This is a reimplementation of M-Systems DiskOnChip 2000,
132 Millennium and Millennium Plus as a standard NAND device driver,
133 as opposed to the earlier self-contained MTD device drivers.
134 This should enable, among other things, proper JFFS2 operation on
137 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
138 bool "Advanced detection options for DiskOnChip"
139 depends on MTD_NAND_DISKONCHIP
141 This option allows you to specify nonstandard address at which to
142 probe for a DiskOnChip, or to change the detection options. You
143 are unlikely to need any of this unless you are using LinuxBIOS.
146 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
147 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
148 depends on MTD_NAND_DISKONCHIP
151 By default, the probe for DiskOnChip devices will look for a
152 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
153 This option allows you to specify a single address at which to probe
154 for the device, which is useful if you have other devices in that
155 range which get upset when they are probed.
157 (Note that on PowerPC, the normal probe will only check at
160 Normally, you should leave this set to zero, to allow the probe at
161 the normal addresses.
163 config MTD_NAND_DISKONCHIP_PROBE_HIGH
164 bool "Probe high addresses"
165 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
167 By default, the probe for DiskOnChip devices will look for a
168 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
169 This option changes to make it probe between 0xFFFC8000 and
170 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
171 useful to you. Say 'N'.
173 config MTD_NAND_DISKONCHIP_BBTWRITE
174 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
175 depends on MTD_NAND_DISKONCHIP
177 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
178 and 2000 TSOP/Alon), Linux reserves some space at the end of the
179 device for the Bad Block Table (BBT). If you have existing INFTL
180 data on your device (created by non-Linux tools such as M-Systems'
181 DOS drivers), your data might overlap the area Linux wants to use for
182 the BBT. If this is a concern for you, leave this option disabled and
183 Linux will not write BBT data into this area.
184 The downside of leaving this option disabled is that if bad blocks
185 are detected by Linux, they will not be recorded in the BBT, which
186 could cause future problems.
187 Once you enable this option, new filesystems (INFTL or others, created
188 in Linux or other operating systems) will not use the reserved area.
189 The only reason not to enable this option is to prevent damage to
190 preexisting filesystems.
191 Even if you leave this disabled, you can enable BBT writes at module
192 load time (assuming you build diskonchip as a module) with the module
193 parameter "inftl_bbt_write=1".
195 config MTD_NAND_SHARPSL
196 bool "Support for NAND Flash on Sharp SL Series (C7xx + others)"
197 depends on MTD_NAND && ARCH_PXA
199 config MTD_NAND_NANDSIM
200 bool "Support for NAND Flash Simulator"
201 depends on MTD_NAND && MTD_PARTITIONS
204 The simulator may simulate verious NAND flash chips for the