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 MTD && 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 MTD && 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 for M25 SPI Flash"
65 depends on MTD && SPI_MASTER && EXPERIMENTAL
67 This enables access to ST M25P80 and similar SPI flash chips,
68 used for program and data storage. Set up your spi devices
69 with the right board-specific platform data.
72 tristate "Uncached system RAM"
75 If your CPU cannot cache all of the physical memory in your machine,
76 you can still use it for storage or swap by using this driver to
77 present it to the system as a Memory Technology Device.
80 tristate "Physical system RAM"
83 This is a re-implementation of the slram driver above.
85 Use this driver to access physical memory that the kernel proper
86 doesn't have access to, memory beyond the mem=xxx limit, nvram,
87 memory on the video card, etc...
90 tristate "28F160xx flash driver for LART"
91 depends on SA1100_LART && MTD
93 This enables the flash driver for LART. Please note that you do
94 not need any mapping/chip driver for LART. This one does it all
95 for you, so go disable all of those if you enabled some of them (:
98 tristate "Test driver using RAM"
101 This enables a test MTD device driver which uses vmalloc() to
102 provide storage. You probably want to say 'N' unless you're
105 config MTDRAM_TOTAL_SIZE
106 int "MTDRAM device size in KiB"
107 depends on MTD_MTDRAM
110 This allows you to configure the total size of the MTD device
111 emulated by the MTDRAM driver. If the MTDRAM driver is built
112 as a module, it is also possible to specify this as a parameter when
115 config MTDRAM_ERASE_SIZE
116 int "MTDRAM erase block size in KiB"
117 depends on MTD_MTDRAM
120 This allows you to configure the size of the erase blocks in the
121 device emulated by the MTDRAM driver. If the MTDRAM driver is built
122 as a module, it is also possible to specify this as a parameter when
125 #If not a module (I don't want to test it as a module)
126 config MTDRAM_ABS_POS
127 hex "SRAM Hexadecimal Absolute position or 0"
128 depends on MTD_MTDRAM=y
131 If you have system RAM accessible by the CPU but not used by Linux
132 in normal operation, you can give the physical address at which the
133 available RAM starts, and the MTDRAM driver will use it instead of
134 allocating space from Linux's available memory. Otherwise, leave
135 this set to zero. Most people will want to leave this as zero.
138 tristate "MTD using block device"
139 depends on MTD && BLOCK
141 This driver allows a block device to appear as an MTD. It would
142 generally be used in the following cases:
144 Using Compact Flash as an MTD, these usually present themselves to
145 the system as an ATA drive.
146 Testing MTD users (eg JFFS2) on large media and media that might
147 be removed during a write (using the floppy drive).
149 comment "Disk-On-Chip Device Drivers"
152 tristate "M-Systems Disk-On-Chip 2000 and Millennium (DEPRECATED)"
157 This provides an MTD device driver for the M-Systems DiskOnChip
158 2000 and Millennium devices. Originally designed for the DiskOnChip
159 2000, it also now includes support for the DiskOnChip Millennium.
160 If you have problems with this driver and the DiskOnChip Millennium,
161 you may wish to try the alternative Millennium driver below. To use
162 the alternative driver, you will need to undefine DOC_SINGLE_DRIVER
163 in the <file:drivers/mtd/devices/docprobe.c> source code.
165 If you use this device, you probably also want to enable the NFTL
166 'NAND Flash Translation Layer' option below, which is used to
167 emulate a block device by using a kind of file system on the flash
170 NOTE: This driver is deprecated and will probably be removed soon.
171 Please try the new DiskOnChip driver under "NAND Flash Device
175 tristate "M-Systems Disk-On-Chip Millennium-only alternative driver (DEPRECATED)"
180 This provides an alternative MTD device driver for the M-Systems
181 DiskOnChip Millennium devices. Use this if you have problems with
182 the combined DiskOnChip 2000 and Millennium driver above. To get
183 the DiskOnChip probe code to load and use this driver instead of
184 the other one, you will need to undefine DOC_SINGLE_DRIVER near
185 the beginning of <file:drivers/mtd/devices/docprobe.c>.
187 If you use this device, you probably also want to enable the NFTL
188 'NAND Flash Translation Layer' option below, which is used to
189 emulate a block device by using a kind of file system on the flash
192 NOTE: This driver is deprecated and will probably be removed soon.
193 Please try the new DiskOnChip driver under "NAND Flash Device
196 config MTD_DOC2001PLUS
197 tristate "M-Systems Disk-On-Chip Millennium Plus"
202 This provides an MTD device driver for the M-Systems DiskOnChip
203 Millennium Plus devices.
205 If you use this device, you probably also want to enable the INFTL
206 'Inverse NAND Flash Translation Layer' option below, which is used
207 to emulate a block device by using a kind of file system on the
210 NOTE: This driver will soon be replaced by the new DiskOnChip driver
211 under "NAND Flash Device Drivers" (currently that driver does not
212 support all Millennium Plus devices).
221 config MTD_DOCPROBE_ADVANCED
222 bool "Advanced detection options for DiskOnChip"
223 depends on MTD_DOCPROBE
225 This option allows you to specify nonstandard address at which to
226 probe for a DiskOnChip, or to change the detection options. You
227 are unlikely to need any of this unless you are using LinuxBIOS.
230 config MTD_DOCPROBE_ADDRESS
231 hex "Physical address of DiskOnChip" if MTD_DOCPROBE_ADVANCED
232 depends on MTD_DOCPROBE
233 default "0x0000" if MTD_DOCPROBE_ADVANCED
234 default "0" if !MTD_DOCPROBE_ADVANCED
236 By default, the probe for DiskOnChip devices will look for a
237 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
238 This option allows you to specify a single address at which to probe
239 for the device, which is useful if you have other devices in that
240 range which get upset when they are probed.
242 (Note that on PowerPC, the normal probe will only check at
245 Normally, you should leave this set to zero, to allow the probe at
246 the normal addresses.
248 config MTD_DOCPROBE_HIGH
249 bool "Probe high addresses"
250 depends on MTD_DOCPROBE_ADVANCED
252 By default, the probe for DiskOnChip devices will look for a
253 DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
254 This option changes to make it probe between 0xFFFC8000 and
255 0xFFFEE000. Unless you are using LinuxBIOS, this is unlikely to be
256 useful to you. Say 'N'.
258 config MTD_DOCPROBE_55AA
259 bool "Probe for 0x55 0xAA BIOS Extension Signature"
260 depends on MTD_DOCPROBE_ADVANCED
262 Check for the 0x55 0xAA signature of a DiskOnChip, and do not
263 continue with probing if it is absent. The signature will always be
264 present for a DiskOnChip 2000 or a normal DiskOnChip Millennium.
265 Only if you have overwritten the first block of a DiskOnChip
266 Millennium will it be absent. Enable this option if you are using
267 LinuxBIOS or if you need to recover a DiskOnChip Millennium on which
268 you have managed to wipe the first block.