1 # drivers/mtd/maps/Kconfig
3 menu "Self-contained MTD device drivers"
7 tristate "Ramix PMC551 PCI Mezzanine RAM card support"
10 This provides a MTD device driver for the Ramix PMC551 RAM PCI card
11 from Ramix Inc. <http://www.ramix.com/products/memory/pmc551.html>.
12 These devices come in memory configurations from 32M - 1G. If you
13 have one, you probably want to enable this.
15 If this driver is compiled as a module you get the ability to select
16 the size of the aperture window pointing into the devices memory.
17 What this means is that if you have a 1G card, normally the kernel
18 will use a 1G memory map as its view of the device. As a module,
19 you can select a 1M window into the memory and the driver will
20 "slide" the window around the PMC551's memory. This was
21 particularly useful on the 2.2 kernels on PPC architectures as there
22 was limited kernel space to deal with.
24 config MTD_PMC551_BUGFIX
25 bool "PMC551 256M DRAM Bugfix"
28 Some of Ramix's PMC551 boards with 256M configurations have invalid
29 column and row mux values. This option will fix them, but will
30 break other memory configurations. If unsure say N.
32 config MTD_PMC551_DEBUG
33 bool "PMC551 Debugging"
36 This option makes the PMC551 more verbose during its operation and
37 is only really useful if you are developing on this driver or
38 suspect a possible hardware or driver bug. If unsure say N.
41 tristate "DEC MS02-NV NVRAM module support"
42 depends on MACH_DECSTATION
44 This is an MTD driver for the DEC's MS02-NV (54-20948-01) battery
45 backed-up NVRAM module. The module was originally meant as an NFS
46 accelerator. Say Y here if you have a DECstation 5000/2x0 or a
47 DECsystem 5900 equipped with such a module.
49 If you want to compile this driver as a module ( = code which can be
50 inserted in and removed from the running kernel whenever you want),
51 say M here and read <file:Documentation/kbuild/modules.txt>.
52 The module will be called ms02-nv.ko.
55 tristate "Support for AT45xxx DataFlash"
56 depends on SPI_MASTER && EXPERIMENTAL
58 This enables access to AT45xxx DataFlash chips, using SPI.
59 Sometimes DataFlash chips are packaged inside MMC-format
60 cards; at this writing, the MMC stack won't handle those.
63 tristate "Support most SPI Flash chips (AT26DF, M25P, W25X, ...)"
64 depends on SPI_MASTER && EXPERIMENTAL
66 This enables access to most modern SPI flash chips, used for
67 program and data storage. Series supported include Atmel AT26DF,
68 Spansion S25SL, SST 25VF, ST M25P, and Winbond W25X. Other chips
69 are supported as well. See the driver source for the current list,
70 or to add other chips.
72 Note that the original DataFlash chips (AT45 series, not AT26DF),
73 need an entirely different driver.
75 Set up your spi devices with the right board-specific platform data,
76 if you want to specify device partitioning or to use a device which
77 doesn't support the JEDEC ID instruction.
79 config M25PXX_USE_FAST_READ
80 bool "Use FAST_READ OPCode allowing SPI CLK <= 50MHz"
84 This option enables FAST_READ access supported by ST M25Pxx.
87 tristate "Uncached system RAM"
89 If your CPU cannot cache all of the physical memory in your machine,
90 you can still use it for storage or swap by using this driver to
91 present it to the system as a Memory Technology Device.
94 tristate "Physical system RAM"
96 This is a re-implementation of the slram driver above.
98 Use this driver to access physical memory that the kernel proper
99 doesn't have access to, memory beyond the mem=xxx limit, nvram,
100 memory on the video card, etc...
103 tristate "28F160xx flash driver for LART"
104 depends on SA1100_LART
106 This enables the flash driver for LART. Please note that you do
107 not need any mapping/chip driver for LART. This one does it all
108 for you, so go disable all of those if you enabled some of them (:
111 tristate "Test driver using RAM"
113 This enables a test MTD device driver which uses vmalloc() to
114 provide storage. You probably want to say 'N' unless you're
117 config MTDRAM_TOTAL_SIZE
118 int "MTDRAM device size in KiB"
119 depends on MTD_MTDRAM
122 This allows you to configure the total size of the MTD device
123 emulated by the MTDRAM driver. If the MTDRAM driver is built
124 as a module, it is also possible to specify this as a parameter when
127 config MTDRAM_ERASE_SIZE
128 int "MTDRAM erase block size in KiB"
129 depends on MTD_MTDRAM
132 This allows you to configure the size of the erase blocks in the
133 device emulated by the MTDRAM driver. If the MTDRAM driver is built
134 as a module, it is also possible to specify this as a parameter when
137 #If not a module (I don't want to test it as a module)
138 config MTDRAM_ABS_POS
139 hex "SRAM Hexadecimal Absolute position or 0"
140 depends on MTD_MTDRAM=y
143 If you have system RAM accessible by the CPU but not used by Linux
144 in normal operation, you can give the physical address at which the
145 available RAM starts, and the MTDRAM driver will use it instead of
146 allocating space from Linux's available memory. Otherwise, leave
147 this set to zero. Most people will want to leave this as zero.
150 tristate "MTD using block device"
153 This driver allows a block device to appear as an MTD. It would
154 generally be used in the following cases:
156 Using Compact Flash as an MTD, these usually present themselves to
157 the system as an ATA drive.
158 Testing MTD users (eg JFFS2) on large media and media that might
159 be removed during a write (using the floppy drive).
161 comment "Disk-On-Chip Device Drivers"
164 tristate "M-Systems Disk-On-Chip 2000 and Millennium (DEPRECATED)"
168 This provides an MTD device driver for the M-Systems DiskOnChip
169 2000 and Millennium devices. Originally designed for the DiskOnChip
170 2000, it also now includes support for the DiskOnChip Millennium.
171 If you have problems with this driver and the DiskOnChip Millennium,
172 you may wish to try the alternative Millennium driver below. To use
173 the alternative driver, you will need to undefine DOC_SINGLE_DRIVER
174 in the <file:drivers/mtd/devices/docprobe.c> source code.
176 If you use this device, you probably also want to enable the NFTL
177 'NAND Flash Translation Layer' option below, which is used to
178 emulate a block device by using a kind of file system on the flash
181 NOTE: This driver is deprecated and will probably be removed soon.
182 Please try the new DiskOnChip driver under "NAND Flash Device
186 tristate "M-Systems Disk-On-Chip Millennium-only alternative driver (DEPRECATED)"
190 This provides an alternative MTD device driver for the M-Systems
191 DiskOnChip Millennium devices. Use this if you have problems with
192 the combined DiskOnChip 2000 and Millennium driver above. To get
193 the DiskOnChip probe code to load and use this driver instead of
194 the other one, you will need to undefine DOC_SINGLE_DRIVER near
195 the beginning of <file:drivers/mtd/devices/docprobe.c>.
197 If you use this device, you probably also want to enable the NFTL
198 'NAND Flash Translation Layer' option below, which is used to
199 emulate a block device by using a kind of file system on the flash
202 NOTE: This driver is deprecated and will probably be removed soon.
203 Please try the new DiskOnChip driver under "NAND Flash Device
206 config MTD_DOC2001PLUS
207 tristate "M-Systems Disk-On-Chip Millennium Plus"
211 This provides an MTD device driver for the M-Systems DiskOnChip
212 Millennium Plus devices.
214 If you use this device, you probably also want to enable the INFTL
215 'Inverse NAND Flash Translation Layer' option below, which is used
216 to emulate a block device by using a kind of file system on the
219 NOTE: This driver will soon be replaced by the new DiskOnChip driver
220 under "NAND Flash Device Drivers" (currently that driver does not
221 support all Millennium Plus devices).
230 config MTD_DOCPROBE_ADVANCED
231 bool "Advanced detection options for DiskOnChip"
232 depends on MTD_DOCPROBE
234 This option allows you to specify nonstandard address at which to
235 probe for a DiskOnChip, or to change the detection options. You
236 are unlikely to need any of this unless you are using LinuxBIOS.
239 config MTD_DOCPROBE_ADDRESS
240 hex "Physical address of DiskOnChip" if MTD_DOCPROBE_ADVANCED
241 depends on MTD_DOCPROBE
242 default "0x0000" if MTD_DOCPROBE_ADVANCED
243 default "0" if !MTD_DOCPROBE_ADVANCED
245 By default, the probe for DiskOnChip devices will look for a
246 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
247 This option allows you to specify a single address at which to probe
248 for the device, which is useful if you have other devices in that
249 range which get upset when they are probed.
251 (Note that on PowerPC, the normal probe will only check at
254 Normally, you should leave this set to zero, to allow the probe at
255 the normal addresses.
257 config MTD_DOCPROBE_HIGH
258 bool "Probe high addresses"
259 depends on MTD_DOCPROBE_ADVANCED
261 By default, the probe for DiskOnChip devices will look for a
262 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
263 This option changes to make it probe between 0xFFFC8000 and
264 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
265 useful to you. Say 'N'.
267 config MTD_DOCPROBE_55AA
268 bool "Probe for 0x55 0xAA BIOS Extension Signature"
269 depends on MTD_DOCPROBE_ADVANCED
271 Check for the 0x55 0xAA signature of a DiskOnChip, and do not
272 continue with probing if it is absent. The signature will always be
273 present for a DiskOnChip 2000 or a normal DiskOnChip Millennium.
274 Only if you have overwritten the first block of a DiskOnChip
275 Millennium will it be absent. Enable this option if you are using
276 LinuxBIOS or if you need to recover a DiskOnChip Millennium on which
277 you have managed to wipe the first block.