1 # drivers/mtd/maps/Kconfig
2 # $Id: Kconfig,v 1.18 2005/11/07 11:14:24 gleixner Exp $
4 menu "Self-contained MTD device drivers"
8 tristate "Ramix PMC551 PCI Mezzanine RAM card support"
11 This provides a MTD device driver for the Ramix PMC551 RAM PCI card
12 from Ramix Inc. <http://www.ramix.com/products/memory/pmc551.html>.
13 These devices come in memory configurations from 32M - 1G. If you
14 have one, you probably want to enable this.
16 If this driver is compiled as a module you get the ability to select
17 the size of the aperture window pointing into the devices memory.
18 What this means is that if you have a 1G card, normally the kernel
19 will use a 1G memory map as its view of the device. As a module,
20 you can select a 1M window into the memory and the driver will
21 "slide" the window around the PMC551's memory. This was
22 particularly useful on the 2.2 kernels on PPC architectures as there
23 was limited kernel space to deal with.
25 config MTD_PMC551_BUGFIX
26 bool "PMC551 256M DRAM Bugfix"
29 Some of Ramix's PMC551 boards with 256M configurations have invalid
30 column and row mux values. This option will fix them, but will
31 break other memory configurations. If unsure say N.
33 config MTD_PMC551_DEBUG
34 bool "PMC551 Debugging"
37 This option makes the PMC551 more verbose during its operation and
38 is only really useful if you are developing on this driver or
39 suspect a possible hardware or driver bug. If unsure say N.
42 tristate "DEC MS02-NV NVRAM module support"
43 depends on MACH_DECSTATION
45 This is an MTD driver for the DEC's MS02-NV (54-20948-01) battery
46 backed-up NVRAM module. The module was originally meant as an NFS
47 accelerator. Say Y here if you have a DECstation 5000/2x0 or a
48 DECsystem 5900 equipped with such a module.
50 If you want to compile this driver as a module ( = code which can be
51 inserted in and removed from the running kernel whenever you want),
52 say M here and read <file:Documentation/modules.txt>. The module will
56 tristate "Support for AT45xxx DataFlash"
57 depends on SPI_MASTER && EXPERIMENTAL
59 This enables access to AT45xxx DataFlash chips, using SPI.
60 Sometimes DataFlash chips are packaged inside MMC-format
61 cards; at this writing, the MMC stack won't handle those.
63 config MTD_DATAFLASH26
64 tristate "AT91RM9200 DataFlash AT26xxx"
65 depends on MTD && ARCH_AT91RM9200 && AT91_SPI
67 This enables access to the DataFlash chip (AT26xxx) on an
68 AT91RM9200-based board.
69 If you have such a board and such a DataFlash, say 'Y'.
72 tristate "Support for M25 SPI Flash"
73 depends on SPI_MASTER && EXPERIMENTAL
75 This enables access to ST M25P80 and similar SPI flash chips,
76 used for program and data storage. Set up your spi devices
77 with the right board-specific platform data.
80 tristate "Uncached system RAM"
82 If your CPU cannot cache all of the physical memory in your machine,
83 you can still use it for storage or swap by using this driver to
84 present it to the system as a Memory Technology Device.
87 tristate "Physical system RAM"
89 This is a re-implementation of the slram driver above.
91 Use this driver to access physical memory that the kernel proper
92 doesn't have access to, memory beyond the mem=xxx limit, nvram,
93 memory on the video card, etc...
96 tristate "28F160xx flash driver for LART"
97 depends on SA1100_LART
99 This enables the flash driver for LART. Please note that you do
100 not need any mapping/chip driver for LART. This one does it all
101 for you, so go disable all of those if you enabled some of them (:
104 tristate "Test driver using RAM"
106 This enables a test MTD device driver which uses vmalloc() to
107 provide storage. You probably want to say 'N' unless you're
110 config MTDRAM_TOTAL_SIZE
111 int "MTDRAM device size in KiB"
112 depends on MTD_MTDRAM
115 This allows you to configure the total size of the MTD device
116 emulated by the MTDRAM driver. If the MTDRAM driver is built
117 as a module, it is also possible to specify this as a parameter when
120 config MTDRAM_ERASE_SIZE
121 int "MTDRAM erase block size in KiB"
122 depends on MTD_MTDRAM
125 This allows you to configure the size of the erase blocks in the
126 device emulated by the MTDRAM driver. If the MTDRAM driver is built
127 as a module, it is also possible to specify this as a parameter when
130 #If not a module (I don't want to test it as a module)
131 config MTDRAM_ABS_POS
132 hex "SRAM Hexadecimal Absolute position or 0"
133 depends on MTD_MTDRAM=y
136 If you have system RAM accessible by the CPU but not used by Linux
137 in normal operation, you can give the physical address at which the
138 available RAM starts, and the MTDRAM driver will use it instead of
139 allocating space from Linux's available memory. Otherwise, leave
140 this set to zero. Most people will want to leave this as zero.
143 tristate "MTD using block device"
146 This driver allows a block device to appear as an MTD. It would
147 generally be used in the following cases:
149 Using Compact Flash as an MTD, these usually present themselves to
150 the system as an ATA drive.
151 Testing MTD users (eg JFFS2) on large media and media that might
152 be removed during a write (using the floppy drive).
154 comment "Disk-On-Chip Device Drivers"
157 tristate "M-Systems Disk-On-Chip 2000 and Millennium (DEPRECATED)"
161 This provides an MTD device driver for the M-Systems DiskOnChip
162 2000 and Millennium devices. Originally designed for the DiskOnChip
163 2000, it also now includes support for the DiskOnChip Millennium.
164 If you have problems with this driver and the DiskOnChip Millennium,
165 you may wish to try the alternative Millennium driver below. To use
166 the alternative driver, you will need to undefine DOC_SINGLE_DRIVER
167 in the <file:drivers/mtd/devices/docprobe.c> source code.
169 If you use this device, you probably also want to enable the NFTL
170 'NAND Flash Translation Layer' option below, which is used to
171 emulate a block device by using a kind of file system on the flash
174 NOTE: This driver is deprecated and will probably be removed soon.
175 Please try the new DiskOnChip driver under "NAND Flash Device
179 tristate "M-Systems Disk-On-Chip Millennium-only alternative driver (DEPRECATED)"
183 This provides an alternative MTD device driver for the M-Systems
184 DiskOnChip Millennium devices. Use this if you have problems with
185 the combined DiskOnChip 2000 and Millennium driver above. To get
186 the DiskOnChip probe code to load and use this driver instead of
187 the other one, you will need to undefine DOC_SINGLE_DRIVER near
188 the beginning of <file:drivers/mtd/devices/docprobe.c>.
190 If you use this device, you probably also want to enable the NFTL
191 'NAND Flash Translation Layer' option below, which is used to
192 emulate a block device by using a kind of file system on the flash
195 NOTE: This driver is deprecated and will probably be removed soon.
196 Please try the new DiskOnChip driver under "NAND Flash Device
199 config MTD_DOC2001PLUS
200 tristate "M-Systems Disk-On-Chip Millennium Plus"
204 This provides an MTD device driver for the M-Systems DiskOnChip
205 Millennium Plus devices.
207 If you use this device, you probably also want to enable the INFTL
208 'Inverse NAND Flash Translation Layer' option below, which is used
209 to emulate a block device by using a kind of file system on the
212 NOTE: This driver will soon be replaced by the new DiskOnChip driver
213 under "NAND Flash Device Drivers" (currently that driver does not
214 support all Millennium Plus devices).
223 config MTD_DOCPROBE_ADVANCED
224 bool "Advanced detection options for DiskOnChip"
225 depends on MTD_DOCPROBE
227 This option allows you to specify nonstandard address at which to
228 probe for a DiskOnChip, or to change the detection options. You
229 are unlikely to need any of this unless you are using LinuxBIOS.
232 config MTD_DOCPROBE_ADDRESS
233 hex "Physical address of DiskOnChip" if MTD_DOCPROBE_ADVANCED
234 depends on MTD_DOCPROBE
235 default "0x0000" if MTD_DOCPROBE_ADVANCED
236 default "0" if !MTD_DOCPROBE_ADVANCED
238 By default, the probe for DiskOnChip devices will look for a
239 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
240 This option allows you to specify a single address at which to probe
241 for the device, which is useful if you have other devices in that
242 range which get upset when they are probed.
244 (Note that on PowerPC, the normal probe will only check at
247 Normally, you should leave this set to zero, to allow the probe at
248 the normal addresses.
250 config MTD_DOCPROBE_HIGH
251 bool "Probe high addresses"
252 depends on MTD_DOCPROBE_ADVANCED
254 By default, the probe for DiskOnChip devices will look for a
255 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
256 This option changes to make it probe between 0xFFFC8000 and
257 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
258 useful to you. Say 'N'.
260 config MTD_DOCPROBE_55AA
261 bool "Probe for 0x55 0xAA BIOS Extension Signature"
262 depends on MTD_DOCPROBE_ADVANCED
264 Check for the 0x55 0xAA signature of a DiskOnChip, and do not
265 continue with probing if it is absent. The signature will always be
266 present for a DiskOnChip 2000 or a normal DiskOnChip Millennium.
267 Only if you have overwritten the first block of a DiskOnChip
268 Millennium will it be absent. Enable this option if you are using
269 LinuxBIOS or if you need to recover a DiskOnChip Millennium on which
270 you have managed to wipe the first block.