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/kbuild/modules.txt>.
53 The module will be called ms02-nv.ko.
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 most SPI Flash chips (AT26DF, M25P, W25X, ...)"
73 depends on SPI_MASTER && EXPERIMENTAL
75 This enables access to most modern SPI flash chips, used for
76 program and data storage. Series supported include Atmel AT26DF,
77 Spansion S25SL, SST 25VF, ST M25P, and Winbond W25X. Other chips
78 are supported as well. See the driver source for the current list,
79 or to add other chips.
81 Note that the original DataFlash chips (AT45 series, not AT26DF),
82 need an entirely different driver.
84 Set up your spi devices with the right board-specific platform data,
85 if you want to specify device partitioning or to use a device which
86 doesn't support the JEDEC ID instruction.
89 tristate "Uncached system RAM"
91 If your CPU cannot cache all of the physical memory in your machine,
92 you can still use it for storage or swap by using this driver to
93 present it to the system as a Memory Technology Device.
96 tristate "Physical system RAM"
98 This is a re-implementation of the slram driver above.
100 Use this driver to access physical memory that the kernel proper
101 doesn't have access to, memory beyond the mem=xxx limit, nvram,
102 memory on the video card, etc...
105 tristate "28F160xx flash driver for LART"
106 depends on SA1100_LART
108 This enables the flash driver for LART. Please note that you do
109 not need any mapping/chip driver for LART. This one does it all
110 for you, so go disable all of those if you enabled some of them (:
113 tristate "Test driver using RAM"
115 This enables a test MTD device driver which uses vmalloc() to
116 provide storage. You probably want to say 'N' unless you're
119 config MTDRAM_TOTAL_SIZE
120 int "MTDRAM device size in KiB"
121 depends on MTD_MTDRAM
124 This allows you to configure the total size of the MTD device
125 emulated by the MTDRAM driver. If the MTDRAM driver is built
126 as a module, it is also possible to specify this as a parameter when
129 config MTDRAM_ERASE_SIZE
130 int "MTDRAM erase block size in KiB"
131 depends on MTD_MTDRAM
134 This allows you to configure the size of the erase blocks in the
135 device emulated by the MTDRAM driver. If the MTDRAM driver is built
136 as a module, it is also possible to specify this as a parameter when
139 #If not a module (I don't want to test it as a module)
140 config MTDRAM_ABS_POS
141 hex "SRAM Hexadecimal Absolute position or 0"
142 depends on MTD_MTDRAM=y
145 If you have system RAM accessible by the CPU but not used by Linux
146 in normal operation, you can give the physical address at which the
147 available RAM starts, and the MTDRAM driver will use it instead of
148 allocating space from Linux's available memory. Otherwise, leave
149 this set to zero. Most people will want to leave this as zero.
152 tristate "MTD using block device"
155 This driver allows a block device to appear as an MTD. It would
156 generally be used in the following cases:
158 Using Compact Flash as an MTD, these usually present themselves to
159 the system as an ATA drive.
160 Testing MTD users (eg JFFS2) on large media and media that might
161 be removed during a write (using the floppy drive).
163 comment "Disk-On-Chip Device Drivers"
166 tristate "M-Systems Disk-On-Chip 2000 and Millennium (DEPRECATED)"
170 This provides an MTD device driver for the M-Systems DiskOnChip
171 2000 and Millennium devices. Originally designed for the DiskOnChip
172 2000, it also now includes support for the DiskOnChip Millennium.
173 If you have problems with this driver and the DiskOnChip Millennium,
174 you may wish to try the alternative Millennium driver below. To use
175 the alternative driver, you will need to undefine DOC_SINGLE_DRIVER
176 in the <file:drivers/mtd/devices/docprobe.c> source code.
178 If you use this device, you probably also want to enable the NFTL
179 'NAND Flash Translation Layer' option below, which is used to
180 emulate a block device by using a kind of file system on the flash
183 NOTE: This driver is deprecated and will probably be removed soon.
184 Please try the new DiskOnChip driver under "NAND Flash Device
188 tristate "M-Systems Disk-On-Chip Millennium-only alternative driver (DEPRECATED)"
192 This provides an alternative MTD device driver for the M-Systems
193 DiskOnChip Millennium devices. Use this if you have problems with
194 the combined DiskOnChip 2000 and Millennium driver above. To get
195 the DiskOnChip probe code to load and use this driver instead of
196 the other one, you will need to undefine DOC_SINGLE_DRIVER near
197 the beginning of <file:drivers/mtd/devices/docprobe.c>.
199 If you use this device, you probably also want to enable the NFTL
200 'NAND Flash Translation Layer' option below, which is used to
201 emulate a block device by using a kind of file system on the flash
204 NOTE: This driver is deprecated and will probably be removed soon.
205 Please try the new DiskOnChip driver under "NAND Flash Device
208 config MTD_DOC2001PLUS
209 tristate "M-Systems Disk-On-Chip Millennium Plus"
213 This provides an MTD device driver for the M-Systems DiskOnChip
214 Millennium Plus devices.
216 If you use this device, you probably also want to enable the INFTL
217 'Inverse NAND Flash Translation Layer' option below, which is used
218 to emulate a block device by using a kind of file system on the
221 NOTE: This driver will soon be replaced by the new DiskOnChip driver
222 under "NAND Flash Device Drivers" (currently that driver does not
223 support all Millennium Plus devices).
232 config MTD_DOCPROBE_ADVANCED
233 bool "Advanced detection options for DiskOnChip"
234 depends on MTD_DOCPROBE
236 This option allows you to specify nonstandard address at which to
237 probe for a DiskOnChip, or to change the detection options. You
238 are unlikely to need any of this unless you are using LinuxBIOS.
241 config MTD_DOCPROBE_ADDRESS
242 hex "Physical address of DiskOnChip" if MTD_DOCPROBE_ADVANCED
243 depends on MTD_DOCPROBE
244 default "0x0000" if MTD_DOCPROBE_ADVANCED
245 default "0" if !MTD_DOCPROBE_ADVANCED
247 By default, the probe for DiskOnChip devices will look for a
248 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
249 This option allows you to specify a single address at which to probe
250 for the device, which is useful if you have other devices in that
251 range which get upset when they are probed.
253 (Note that on PowerPC, the normal probe will only check at
256 Normally, you should leave this set to zero, to allow the probe at
257 the normal addresses.
259 config MTD_DOCPROBE_HIGH
260 bool "Probe high addresses"
261 depends on MTD_DOCPROBE_ADVANCED
263 By default, the probe for DiskOnChip devices will look for a
264 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
265 This option changes to make it probe between 0xFFFC8000 and
266 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
267 useful to you. Say 'N'.
269 config MTD_DOCPROBE_55AA
270 bool "Probe for 0x55 0xAA BIOS Extension Signature"
271 depends on MTD_DOCPROBE_ADVANCED
273 Check for the 0x55 0xAA signature of a DiskOnChip, and do not
274 continue with probing if it is absent. The signature will always be
275 present for a DiskOnChip 2000 or a normal DiskOnChip Millennium.
276 Only if you have overwritten the first block of a DiskOnChip
277 Millennium will it be absent. Enable this option if you are using
278 LinuxBIOS or if you need to recover a DiskOnChip Millennium on which
279 you have managed to wipe the first block.