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.
64 tristate "Support most SPI Flash chips (AT26DF, M25P, W25X, ...)"
65 depends on SPI_MASTER && EXPERIMENTAL
67 This enables access to most modern SPI flash chips, used for
68 program and data storage. Series supported include Atmel AT26DF,
69 Spansion S25SL, SST 25VF, ST M25P, and Winbond W25X. Other chips
70 are supported as well. See the driver source for the current list,
71 or to add other chips.
73 Note that the original DataFlash chips (AT45 series, not AT26DF),
74 need an entirely different driver.
76 Set up your spi devices with the right board-specific platform data,
77 if you want to specify device partitioning or to use a device which
78 doesn't support the JEDEC ID instruction.
81 tristate "Uncached system RAM"
83 If your CPU cannot cache all of the physical memory in your machine,
84 you can still use it for storage or swap by using this driver to
85 present it to the system as a Memory Technology Device.
88 tristate "Physical system RAM"
90 This is a re-implementation of the slram driver above.
92 Use this driver to access physical memory that the kernel proper
93 doesn't have access to, memory beyond the mem=xxx limit, nvram,
94 memory on the video card, etc...
97 tristate "28F160xx flash driver for LART"
98 depends on SA1100_LART
100 This enables the flash driver for LART. Please note that you do
101 not need any mapping/chip driver for LART. This one does it all
102 for you, so go disable all of those if you enabled some of them (:
105 tristate "Test driver using RAM"
107 This enables a test MTD device driver which uses vmalloc() to
108 provide storage. You probably want to say 'N' unless you're
111 config MTDRAM_TOTAL_SIZE
112 int "MTDRAM device size in KiB"
113 depends on MTD_MTDRAM
116 This allows you to configure the total size of the MTD device
117 emulated by the MTDRAM driver. If the MTDRAM driver is built
118 as a module, it is also possible to specify this as a parameter when
121 config MTDRAM_ERASE_SIZE
122 int "MTDRAM erase block size in KiB"
123 depends on MTD_MTDRAM
126 This allows you to configure the size of the erase blocks in the
127 device emulated by the MTDRAM driver. If the MTDRAM driver is built
128 as a module, it is also possible to specify this as a parameter when
131 #If not a module (I don't want to test it as a module)
132 config MTDRAM_ABS_POS
133 hex "SRAM Hexadecimal Absolute position or 0"
134 depends on MTD_MTDRAM=y
137 If you have system RAM accessible by the CPU but not used by Linux
138 in normal operation, you can give the physical address at which the
139 available RAM starts, and the MTDRAM driver will use it instead of
140 allocating space from Linux's available memory. Otherwise, leave
141 this set to zero. Most people will want to leave this as zero.
144 tristate "MTD using block device"
147 This driver allows a block device to appear as an MTD. It would
148 generally be used in the following cases:
150 Using Compact Flash as an MTD, these usually present themselves to
151 the system as an ATA drive.
152 Testing MTD users (eg JFFS2) on large media and media that might
153 be removed during a write (using the floppy drive).
155 comment "Disk-On-Chip Device Drivers"
158 tristate "M-Systems Disk-On-Chip 2000 and Millennium (DEPRECATED)"
162 This provides an MTD device driver for the M-Systems DiskOnChip
163 2000 and Millennium devices. Originally designed for the DiskOnChip
164 2000, it also now includes support for the DiskOnChip Millennium.
165 If you have problems with this driver and the DiskOnChip Millennium,
166 you may wish to try the alternative Millennium driver below. To use
167 the alternative driver, you will need to undefine DOC_SINGLE_DRIVER
168 in the <file:drivers/mtd/devices/docprobe.c> source code.
170 If you use this device, you probably also want to enable the NFTL
171 'NAND Flash Translation Layer' option below, which is used to
172 emulate a block device by using a kind of file system on the flash
175 NOTE: This driver is deprecated and will probably be removed soon.
176 Please try the new DiskOnChip driver under "NAND Flash Device
180 tristate "M-Systems Disk-On-Chip Millennium-only alternative driver (DEPRECATED)"
184 This provides an alternative MTD device driver for the M-Systems
185 DiskOnChip Millennium devices. Use this if you have problems with
186 the combined DiskOnChip 2000 and Millennium driver above. To get
187 the DiskOnChip probe code to load and use this driver instead of
188 the other one, you will need to undefine DOC_SINGLE_DRIVER near
189 the beginning of <file:drivers/mtd/devices/docprobe.c>.
191 If you use this device, you probably also want to enable the NFTL
192 'NAND Flash Translation Layer' option below, which is used to
193 emulate a block device by using a kind of file system on the flash
196 NOTE: This driver is deprecated and will probably be removed soon.
197 Please try the new DiskOnChip driver under "NAND Flash Device
200 config MTD_DOC2001PLUS
201 tristate "M-Systems Disk-On-Chip Millennium Plus"
205 This provides an MTD device driver for the M-Systems DiskOnChip
206 Millennium Plus devices.
208 If you use this device, you probably also want to enable the INFTL
209 'Inverse NAND Flash Translation Layer' option below, which is used
210 to emulate a block device by using a kind of file system on the
213 NOTE: This driver will soon be replaced by the new DiskOnChip driver
214 under "NAND Flash Device Drivers" (currently that driver does not
215 support all Millennium Plus devices).
224 config MTD_DOCPROBE_ADVANCED
225 bool "Advanced detection options for DiskOnChip"
226 depends on MTD_DOCPROBE
228 This option allows you to specify nonstandard address at which to
229 probe for a DiskOnChip, or to change the detection options. You
230 are unlikely to need any of this unless you are using LinuxBIOS.
233 config MTD_DOCPROBE_ADDRESS
234 hex "Physical address of DiskOnChip" if MTD_DOCPROBE_ADVANCED
235 depends on MTD_DOCPROBE
236 default "0x0000" if MTD_DOCPROBE_ADVANCED
237 default "0" if !MTD_DOCPROBE_ADVANCED
239 By default, the probe for DiskOnChip devices will look for a
240 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
241 This option allows you to specify a single address at which to probe
242 for the device, which is useful if you have other devices in that
243 range which get upset when they are probed.
245 (Note that on PowerPC, the normal probe will only check at
248 Normally, you should leave this set to zero, to allow the probe at
249 the normal addresses.
251 config MTD_DOCPROBE_HIGH
252 bool "Probe high addresses"
253 depends on MTD_DOCPROBE_ADVANCED
255 By default, the probe for DiskOnChip devices will look for a
256 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
257 This option changes to make it probe between 0xFFFC8000 and
258 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
259 useful to you. Say 'N'.
261 config MTD_DOCPROBE_55AA
262 bool "Probe for 0x55 0xAA BIOS Extension Signature"
263 depends on MTD_DOCPROBE_ADVANCED
265 Check for the 0x55 0xAA signature of a DiskOnChip, and do not
266 continue with probing if it is absent. The signature will always be
267 present for a DiskOnChip 2000 or a normal DiskOnChip Millennium.
268 Only if you have overwritten the first block of a DiskOnChip
269 Millennium will it be absent. Enable this option if you are using
270 LinuxBIOS or if you need to recover a DiskOnChip Millennium on which
271 you have managed to wipe the first block.