1 menu "Self-contained MTD device drivers"
6 tristate "Ramix PMC551 PCI Mezzanine RAM card support"
9 This provides a MTD device driver for the Ramix PMC551 RAM PCI card
10 from Ramix Inc. <http://www.ramix.com/products/memory/pmc551.html>.
11 These devices come in memory configurations from 32M - 1G. If you
12 have one, you probably want to enable this.
14 If this driver is compiled as a module you get the ability to select
15 the size of the aperture window pointing into the devices memory.
16 What this means is that if you have a 1G card, normally the kernel
17 will use a 1G memory map as its view of the device. As a module,
18 you can select a 1M window into the memory and the driver will
19 "slide" the window around the PMC551's memory. This was
20 particularly useful on the 2.2 kernels on PPC architectures as there
21 was limited kernel space to deal with.
23 config MTD_PMC551_BUGFIX
24 bool "PMC551 256M DRAM Bugfix"
27 Some of Ramix's PMC551 boards with 256M configurations have invalid
28 column and row mux values. This option will fix them, but will
29 break other memory configurations. If unsure say N.
31 config MTD_PMC551_DEBUG
32 bool "PMC551 Debugging"
35 This option makes the PMC551 more verbose during its operation and
36 is only really useful if you are developing on this driver or
37 suspect a possible hardware or driver bug. If unsure say N.
40 tristate "DEC MS02-NV NVRAM module support"
41 depends on MACH_DECSTATION
43 This is an MTD driver for the DEC's MS02-NV (54-20948-01) battery
44 backed-up NVRAM module. The module was originally meant as an NFS
45 accelerator. Say Y here if you have a DECstation 5000/2x0 or a
46 DECsystem 5900 equipped with such a module.
48 If you want to compile this driver as a module ( = code which can be
49 inserted in and removed from the running kernel whenever you want),
50 say M here and read <file:Documentation/kbuild/modules.txt>.
51 The module will be called ms02-nv.
54 tristate "Support for AT45xxx DataFlash"
55 depends on SPI_MASTER && EXPERIMENTAL
57 This enables access to AT45xxx DataFlash chips, using SPI.
58 Sometimes DataFlash chips are packaged inside MMC-format
59 cards; at this writing, the MMC stack won't handle those.
61 config MTD_DATAFLASH_WRITE_VERIFY
62 bool "Verify DataFlash page writes"
63 depends on MTD_DATAFLASH
65 This adds an extra check when data is written to the flash.
66 It may help if you are verifying chip setup (timings etc) on
67 your board. There is a rare possibility that even though the
68 device thinks the write was successful, a bit could have been
69 flipped accidentally due to device wear or something else.
71 config MTD_DATAFLASH_OTP
72 bool "DataFlash OTP support (Security Register)"
73 depends on MTD_DATAFLASH
76 Newer DataFlash chips (revisions C and D) support 128 bytes of
77 one-time-programmable (OTP) data. The first half may be written
78 (once) with up to 64 bytes of data, such as a serial number or
79 other key product data. The second half is programmed with a
80 unique-to-each-chip bit pattern at the factory.
83 tristate "Support most SPI Flash chips (AT26DF, M25P, W25X, ...)"
84 depends on SPI_MASTER && EXPERIMENTAL
86 This enables access to most modern SPI flash chips, used for
87 program and data storage. Series supported include Atmel AT26DF,
88 Spansion S25SL, SST 25VF, ST M25P, and Winbond W25X. Other chips
89 are supported as well. See the driver source for the current list,
90 or to add other chips.
92 Note that the original DataFlash chips (AT45 series, not AT26DF),
93 need an entirely different driver.
95 Set up your spi devices with the right board-specific platform data,
96 if you want to specify device partitioning or to use a device which
97 doesn't support the JEDEC ID instruction.
99 config M25PXX_USE_FAST_READ
100 bool "Use FAST_READ OPCode allowing SPI CLK <= 50MHz"
101 depends on MTD_M25P80
104 This option enables FAST_READ access supported by ST M25Pxx.
107 tristate "Support SST25L (non JEDEC) SPI Flash chips"
108 depends on SPI_MASTER
110 This enables access to the non JEDEC SST25L SPI flash chips, used
111 for program and data storage.
113 Set up your spi devices with the right board-specific platform data,
114 if you want to specify device partitioning.
117 tristate "Uncached system RAM"
119 If your CPU cannot cache all of the physical memory in your machine,
120 you can still use it for storage or swap by using this driver to
121 present it to the system as a Memory Technology Device.
124 tristate "Physical system RAM"
126 This is a re-implementation of the slram driver above.
128 Use this driver to access physical memory that the kernel proper
129 doesn't have access to, memory beyond the mem=xxx limit, nvram,
130 memory on the video card, etc...
133 tristate "28F160xx flash driver for LART"
134 depends on SA1100_LART
136 This enables the flash driver for LART. Please note that you do
137 not need any mapping/chip driver for LART. This one does it all
138 for you, so go disable all of those if you enabled some of them (:
141 tristate "Test driver using RAM"
143 This enables a test MTD device driver which uses vmalloc() to
144 provide storage. You probably want to say 'N' unless you're
147 config MTDRAM_TOTAL_SIZE
148 int "MTDRAM device size in KiB"
149 depends on MTD_MTDRAM
152 This allows you to configure the total size of the MTD device
153 emulated by the MTDRAM driver. If the MTDRAM driver is built
154 as a module, it is also possible to specify this as a parameter when
157 config MTDRAM_ERASE_SIZE
158 int "MTDRAM erase block size in KiB"
159 depends on MTD_MTDRAM
162 This allows you to configure the size of the erase blocks in the
163 device emulated by the MTDRAM driver. If the MTDRAM driver is built
164 as a module, it is also possible to specify this as a parameter when
167 #If not a module (I don't want to test it as a module)
168 config MTDRAM_ABS_POS
169 hex "SRAM Hexadecimal Absolute position or 0"
170 depends on MTD_MTDRAM=y
173 If you have system RAM accessible by the CPU but not used by Linux
174 in normal operation, you can give the physical address at which the
175 available RAM starts, and the MTDRAM driver will use it instead of
176 allocating space from Linux's available memory. Otherwise, leave
177 this set to zero. Most people will want to leave this as zero.
180 tristate "MTD using block device"
183 This driver allows a block device to appear as an MTD. It would
184 generally be used in the following cases:
186 Using Compact Flash as an MTD, these usually present themselves to
187 the system as an ATA drive.
188 Testing MTD users (eg JFFS2) on large media and media that might
189 be removed during a write (using the floppy drive).
191 comment "Disk-On-Chip Device Drivers"
194 tristate "M-Systems Disk-On-Chip 2000 and Millennium (DEPRECATED)"
199 This provides an MTD device driver for the M-Systems DiskOnChip
200 2000 and Millennium devices. Originally designed for the DiskOnChip
201 2000, it also now includes support for the DiskOnChip Millennium.
202 If you have problems with this driver and the DiskOnChip Millennium,
203 you may wish to try the alternative Millennium driver below. To use
204 the alternative driver, you will need to undefine DOC_SINGLE_DRIVER
205 in the <file:drivers/mtd/devices/docprobe.c> source code.
207 If you use this device, you probably also want to enable the NFTL
208 'NAND Flash Translation Layer' option below, which is used to
209 emulate a block device by using a kind of file system on the flash
212 NOTE: This driver is deprecated and will probably be removed soon.
213 Please try the new DiskOnChip driver under "NAND Flash Device
217 tristate "M-Systems Disk-On-Chip Millennium-only alternative driver (DEPRECATED)"
222 This provides an alternative MTD device driver for the M-Systems
223 DiskOnChip Millennium devices. Use this if you have problems with
224 the combined DiskOnChip 2000 and Millennium driver above. To get
225 the DiskOnChip probe code to load and use this driver instead of
226 the other one, you will need to undefine DOC_SINGLE_DRIVER near
227 the beginning of <file:drivers/mtd/devices/docprobe.c>.
229 If you use this device, you probably also want to enable the NFTL
230 'NAND Flash Translation Layer' option below, which is used to
231 emulate a block device by using a kind of file system on the flash
234 NOTE: This driver is deprecated and will probably be removed soon.
235 Please try the new DiskOnChip driver under "NAND Flash Device
238 config MTD_DOC2001PLUS
239 tristate "M-Systems Disk-On-Chip Millennium Plus"
244 This provides an MTD device driver for the M-Systems DiskOnChip
245 Millennium Plus devices.
247 If you use this device, you probably also want to enable the INFTL
248 'Inverse NAND Flash Translation Layer' option below, which is used
249 to emulate a block device by using a kind of file system on the
252 NOTE: This driver will soon be replaced by the new DiskOnChip driver
253 under "NAND Flash Device Drivers" (currently that driver does not
254 support all Millennium Plus devices).
257 tristate "M-Systems Disk-On-Chip G3"
259 select BCH_CONST_PARAMS
261 This provides an MTD device driver for the M-Systems DiskOnChip
264 The driver provides access to G3 DiskOnChip, distributed by
265 M-Systems and now Sandisk. The support is very experimental,
266 and doesn't give access to any write operations.
282 config MTD_DOCPROBE_ADVANCED
283 bool "Advanced detection options for DiskOnChip"
284 depends on MTD_DOCPROBE
286 This option allows you to specify nonstandard address at which to
287 probe for a DiskOnChip, or to change the detection options. You
288 are unlikely to need any of this unless you are using LinuxBIOS.
291 config MTD_DOCPROBE_ADDRESS
292 hex "Physical address of DiskOnChip" if MTD_DOCPROBE_ADVANCED
293 depends on MTD_DOCPROBE
296 By default, the probe for DiskOnChip devices will look for a
297 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
298 This option allows you to specify a single address at which to probe
299 for the device, which is useful if you have other devices in that
300 range which get upset when they are probed.
302 (Note that on PowerPC, the normal probe will only check at
305 Normally, you should leave this set to zero, to allow the probe at
306 the normal addresses.
308 config MTD_DOCPROBE_HIGH
309 bool "Probe high addresses"
310 depends on MTD_DOCPROBE_ADVANCED
312 By default, the probe for DiskOnChip devices will look for a
313 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
314 This option changes to make it probe between 0xFFFC8000 and
315 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
316 useful to you. Say 'N'.
318 config MTD_DOCPROBE_55AA
319 bool "Probe for 0x55 0xAA BIOS Extension Signature"
320 depends on MTD_DOCPROBE_ADVANCED
322 Check for the 0x55 0xAA signature of a DiskOnChip, and do not
323 continue with probing if it is absent. The signature will always be
324 present for a DiskOnChip 2000 or a normal DiskOnChip Millennium.
325 Only if you have overwritten the first block of a DiskOnChip
326 Millennium will it be absent. Enable this option if you are using
327 LinuxBIOS or if you need to recover a DiskOnChip Millennium on which
328 you have managed to wipe the first block.