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/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 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 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 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 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 ARCH_OMAP && MTD_NAND
56 Support for NAND flash on Texas Instruments Toto platform.
61 config MTD_NAND_AU1550
62 tristate "Au1550/1200 NAND support"
63 depends on (SOC_AU1200 || SOC_AU1550) && MTD_NAND
65 This enables the driver for the NAND flash controller on the
68 config MTD_NAND_RTC_FROM4
69 tristate "Renesas Flash ROM 4-slot interface board (FROM_BOARD4)"
70 depends on MTD_NAND && SH_SOLUTION_ENGINE
72 select REED_SOLOMON_DEC8
74 This enables the driver for the Renesas Technology AG-AND
75 flash interface board (FROM_BOARD4)
77 config MTD_NAND_PPCHAMELEONEVB
78 tristate "NAND Flash device on PPChameleonEVB board"
79 depends on PPCHAMELEONEVB && MTD_NAND
81 This enables the NAND flash driver on the PPChameleon EVB Board.
83 config MTD_NAND_S3C2410
84 tristate "NAND Flash support for S3C2410/S3C2440 SoC"
85 depends on ARCH_S3C2410 && MTD_NAND
87 This enables the NAND flash controller on the S3C2410 and S3C2440
90 No board specfic support is done by this driver, each board
91 must advertise a platform_device for the driver to attach.
93 config MTD_NAND_S3C2410_DEBUG
94 bool "S3C2410 NAND driver debug"
95 depends on MTD_NAND_S3C2410
97 Enable debugging of the S3C2410 NAND driver
99 config MTD_NAND_S3C2410_HWECC
100 bool "S3C2410 NAND Hardware ECC"
101 depends on MTD_NAND_S3C2410
103 Enable the use of the S3C2410's internal ECC generator when
104 using NAND. Early versions of the chip have had problems with
105 incorrect ECC generation, and if using these, the default of
106 software ECC is preferable.
108 If you lay down a device with the hardware ECC, then you will
109 currently not be able to switch to software, as there is no
110 implementation for ECC method used by the S3C2410
112 config MTD_NAND_DISKONCHIP
113 tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
114 depends on MTD_NAND && EXPERIMENTAL
116 select REED_SOLOMON_DEC16
118 This is a reimplementation of M-Systems DiskOnChip 2000,
119 Millennium and Millennium Plus as a standard NAND device driver,
120 as opposed to the earlier self-contained MTD device drivers.
121 This should enable, among other things, proper JFFS2 operation on
124 config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
125 bool "Advanced detection options for DiskOnChip"
126 depends on MTD_NAND_DISKONCHIP
128 This option allows you to specify nonstandard address at which to
129 probe for a DiskOnChip, or to change the detection options. You
130 are unlikely to need any of this unless you are using LinuxBIOS.
133 config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
134 hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
135 depends on MTD_NAND_DISKONCHIP
138 By default, the probe for DiskOnChip devices will look for a
139 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
140 This option allows you to specify a single address at which to probe
141 for the device, which is useful if you have other devices in that
142 range which get upset when they are probed.
144 (Note that on PowerPC, the normal probe will only check at
147 Normally, you should leave this set to zero, to allow the probe at
148 the normal addresses.
150 config MTD_NAND_DISKONCHIP_PROBE_HIGH
151 bool "Probe high addresses"
152 depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
154 By default, the probe for DiskOnChip devices will look for a
155 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
156 This option changes to make it probe between 0xFFFC8000 and
157 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
158 useful to you. Say 'N'.
160 config MTD_NAND_DISKONCHIP_BBTWRITE
161 bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
162 depends on MTD_NAND_DISKONCHIP
164 On DiskOnChip devices shipped with the INFTL filesystem (Millennium
165 and 2000 TSOP/Alon), Linux reserves some space at the end of the
166 device for the Bad Block Table (BBT). If you have existing INFTL
167 data on your device (created by non-Linux tools such as M-Systems'
168 DOS drivers), your data might overlap the area Linux wants to use for
169 the BBT. If this is a concern for you, leave this option disabled and
170 Linux will not write BBT data into this area.
171 The downside of leaving this option disabled is that if bad blocks
172 are detected by Linux, they will not be recorded in the BBT, which
173 could cause future problems.
174 Once you enable this option, new filesystems (INFTL or others, created
175 in Linux or other operating systems) will not use the reserved area.
176 The only reason not to enable this option is to prevent damage to
177 preexisting filesystems.
178 Even if you leave this disabled, you can enable BBT writes at module
179 load time (assuming you build diskonchip as a module) with the module
180 parameter "inftl_bbt_write=1".
182 config MTD_NAND_SHARPSL
183 tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"
184 depends on MTD_NAND && ARCH_PXA
186 config MTD_NAND_NANDSIM
187 tristate "Support for NAND Flash Simulator"
188 depends on MTD_NAND && MTD_PARTITIONS
190 The simulator may simulate verious NAND flash chips for the