1 # SPDX-License-Identifier: GPL-2.0-only
2 menu "Mapping drivers for chip access"
6 config MTD_COMPLEX_MAPPINGS
7 bool "Support non-linear mappings of flash chips"
9 This causes the chip drivers to allow for complicated
10 paged mappings of flash chips.
13 tristate "Flash device in physical memory map"
14 depends on MTD_CFI || MTD_JEDECPROBE || MTD_ROM || MTD_RAM || MTD_LPDDR
16 This provides a 'mapping' driver which allows the NOR Flash and
17 ROM driver code to communicate with chips which are mapped
18 physically into the CPU's memory. You will need to configure
19 the physical address and size of the flash chips on your
20 particular board as well as the bus width, either statically
21 with config options or at run-time.
23 To compile this driver as a module, choose M here: the
24 module will be called physmap.
26 config MTD_PHYSMAP_COMPAT
27 bool "Physmap compat support"
28 depends on MTD_PHYSMAP
31 Setup a simple mapping via the Kconfig options. Normally the
32 physmap configuration options are done via your board's
35 If unsure, say N here.
37 config MTD_PHYSMAP_START
38 hex "Physical start address of flash mapping"
39 depends on MTD_PHYSMAP_COMPAT
42 This is the physical memory location at which the flash chips
43 are mapped on your particular target board. Refer to the
44 memory map which should hopefully be in the documentation for
47 config MTD_PHYSMAP_LEN
48 hex "Physical length of flash mapping"
49 depends on MTD_PHYSMAP_COMPAT
52 This is the total length of the mapping of the flash chips on
53 your particular board. If there is space, or aliases, in the
54 physical memory map between the chips, this could be larger
55 than the total amount of flash present. Refer to the memory
56 map which should hopefully be in the documentation for your
59 config MTD_PHYSMAP_BANKWIDTH
60 int "Bank width in octets"
61 depends on MTD_PHYSMAP_COMPAT
64 This is the total width of the data bus of the flash devices
65 in octets. For example, if you have a data bus width of 32
66 bits, you would set the bus width octet value to 4. This is
67 used internally by the CFI drivers.
70 bool "Memory device in physical memory map based on OF description"
71 depends on OF && MTD_PHYSMAP
73 This provides a 'mapping' driver which allows the NOR Flash, ROM
74 and RAM driver code to communicate with chips which are mapped
75 physically into the CPU's memory. The mapping description here is
76 taken from OF device tree.
78 config MTD_PHYSMAP_BT1_ROM
79 bool "Baikal-T1 Boot ROMs OF-based physical memory map handling"
80 depends on MTD_PHYSMAP_OF
81 depends on MIPS_BAIKAL_T1 || COMPILE_TEST
82 select MTD_COMPLEX_MAPPINGS
86 This provides some extra DT physmap parsing for the Baikal-T1
87 platforms, some detection and setting up ROMs-specific accessors.
89 config MTD_PHYSMAP_VERSATILE
90 bool "ARM Versatile OF-based physical memory map handling"
91 depends on MTD_PHYSMAP_OF
93 default y if (ARCH_INTEGRATOR || ARCH_VERSATILE || ARCH_REALVIEW)
95 This provides some extra DT physmap parsing for the ARM Versatile
96 platforms, basically to add a VPP (write protection) callback so
97 the flash can be taken out of write protection.
99 config MTD_PHYSMAP_GEMINI
100 bool "Cortina Gemini OF-based physical memory map handling"
101 depends on MTD_PHYSMAP_OF
102 depends on MFD_SYSCON
103 select MTD_COMPLEX_MAPPINGS
106 This provides some extra DT physmap parsing for the Gemini
107 platforms, some detection and setting up parallel mode on the
110 config MTD_PHYSMAP_IXP4XX
111 bool "Intel IXP4xx OF-based physical memory map handling"
112 depends on MTD_PHYSMAP_OF
114 select MTD_COMPLEX_MAPPINGS
115 select MTD_CFI_BE_BYTE_SWAP if CPU_BIG_ENDIAN
118 This provides some extra DT physmap parsing for the Intel IXP4xx
119 platforms, some elaborate endianness handling in particular.
121 config MTD_PHYSMAP_GPIO_ADDR
122 bool "GPIO-assisted Flash Chip Support"
123 depends on MTD_PHYSMAP
124 depends on GPIOLIB || COMPILE_TEST
125 depends on MTD_COMPLEX_MAPPINGS
127 Extend the physmap driver to allow flashes to be partially
128 physically addressed and assisted by GPIOs.
130 config MTD_SUN_UFLASH
131 tristate "Sun Microsystems userflash support"
132 depends on SPARC && MTD_CFI && PCI
134 This provides a 'mapping' driver which supports the way in
135 which user-programmable flash chips are connected on various
136 Sun Microsystems boardsets. This driver will require CFI support
137 in the kernel, so if you did not enable CFI previously, do that now.
140 tristate "CFI Flash device mapped on AMD SC520 CDP"
141 depends on (MELAN || COMPILE_TEST) && MTD_CFI
143 The SC520 CDP board has two banks of CFI-compliant chips and one
144 Dual-in-line JEDEC chip. This 'mapping' driver supports that
145 arrangement, implementing three MTD devices.
148 tristate "CFI Flash device mapped on AMD NetSc520"
149 depends on (MELAN || COMPILE_TEST) && MTD_CFI
151 This enables access routines for the flash chips on the AMD NetSc520
152 demonstration board. If you have one of these boards and would like
153 to use the flash chips on it, say 'Y'.
156 tristate "JEDEC Flash device mapped on Technologic Systems TS-5500"
157 depends on TS5500 || COMPILE_TEST
158 select MTD_JEDECPROBE
159 select MTD_CFI_AMDSTD
161 This provides a driver for the on-board flash of the Technologic
162 System's TS-5500 board. The 2MB flash is split into 3 partitions
163 which are accessed as separate MTD devices.
165 mtd0 and mtd2 are the two BIOS drives, which use the resident
166 flash disk (RFD) flash translation layer.
168 mtd1 allows you to reprogram your BIOS. BE VERY CAREFUL.
170 Note that jumper 3 ("Write Enable Drive A") must be set
171 otherwise detection won't succeed.
174 tristate "CFI Flash device mapped on Arcom SBC-GXx boards"
175 depends on X86 && MTD_CFI_INTELEXT && MTD_COMPLEX_MAPPINGS
177 This provides a driver for the on-board flash of Arcom Control
178 Systems' SBC-GXn family of boards, formerly known as SBC-MediaGX.
179 By default the flash is split into 3 partitions which are accessed
180 as separate MTD devices. This board utilizes Intel StrataFlash.
182 <http://www.arcomcontrols.com/products/icp/pc104/processors/SBC_GX1.htm>.
185 tristate "CFI Flash device mapped on Intel XScale PXA2xx based boards"
186 depends on (PXA25x || PXA27x) && MTD_CFI_INTELEXT
188 This provides a driver for the NOR flash attached to a PXA2xx chip.
190 config MTD_SCx200_DOCFLASH
191 tristate "Flash device mapped with DOCCS on NatSemi SCx200"
192 depends on SCx200 && MTD_CFI
194 Enable support for a flash chip mapped using the DOCCS signal on a
195 National Semiconductor SCx200 processor.
197 If you don't know what to do here, say N.
199 If compiled as a module, it will be called scx200_docflash.
202 tristate "BIOS flash chip on AMD76x southbridge"
203 depends on X86 && MTD_JEDECPROBE
205 Support for treating the BIOS flash chip on AMD76x motherboards
206 as an MTD device - with this you can reprogram your BIOS.
211 tristate "BIOS flash chip on Intel Controller Hub 2/3/4/5"
212 depends on X86 && MTD_JEDECPROBE
214 Support for treating the BIOS flash chip on ICHX motherboards
215 as an MTD device - with this you can reprogram your BIOS.
220 tristate "BIOS flash chip on Intel ESB Controller Hub 2"
221 depends on X86 && MTD_JEDECPROBE && PCI
223 Support for treating the BIOS flash chip on ESB2 motherboards
224 as an MTD device - with this you can reprogram your BIOS.
229 tristate "BIOS flash chip on Nvidia CK804"
230 depends on X86 && MTD_JEDECPROBE && PCI
232 Support for treating the BIOS flash chip on nvidia motherboards
233 as an MTD device - with this you can reprogram your BIOS.
237 config MTD_SCB2_FLASH
238 tristate "BIOS flash chip on Intel SCB2 boards"
239 depends on X86 && MTD_JEDECPROBE && PCI
241 Support for treating the BIOS flash chip on Intel SCB2 boards
242 as an MTD device - with this you can reprogram your BIOS.
247 tristate "Flash chips on Tsunami TIG bus"
248 depends on ALPHA_TSUNAMI && MTD_COMPLEX_MAPPINGS
250 Support for the flash chip on Tsunami TIG bus.
253 tristate "CFI flash device on SnapGear/SecureEdge"
254 depends on X86 && MTD_JEDECPROBE
256 Support for flash chips on NETtel/SecureEdge/SnapGear boards.
259 tristate "Lantiq SoC NOR support"
262 Support for NOR flash attached to the Lantiq SoC's External Bus Unit.
265 tristate "BIOS flash chip on Intel L440GX boards"
266 depends on X86 && MTD_JEDECPROBE
268 Support for treating the BIOS flash chip on Intel L440GX motherboards
269 as an MTD device - with this you can reprogram your BIOS.
273 config MTD_CFI_FLAGADM
274 tristate "CFI Flash device mapping on FlagaDM"
275 depends on PPC_8xx && MTD_CFI
277 Mapping for the Flaga digital module. If you don't have one, ignore
280 config MTD_SOLUTIONENGINE
281 tristate "CFI Flash device mapped on Hitachi SolutionEngine"
282 depends on SOLUTION_ENGINE && MTD_CFI && MTD_REDBOOT_PARTS
284 This enables access to the flash chips on the Hitachi SolutionEngine and
285 similar boards. Say 'Y' if you are building a kernel for such a board.
288 tristate "CFI Flash device mapped on StrongARM SA11x0"
289 depends on MTD_CFI && ARCH_SA1100
291 This enables access to the flash chips on most platforms based on
292 the SA1100 and SA1110, including the Assabet and the Compaq iPAQ.
293 If you have such a board, say 'Y'.
296 tristate "CFI Flash device mapped on DC21285 Footbridge"
297 depends on MTD_CFI && ARCH_FOOTBRIDGE && MTD_COMPLEX_MAPPINGS
299 This provides a driver for the flash accessed using Intel's
300 21285 bridge used with Intel's StrongARM processors. More info at
301 <https://www.intel.com/design/bridge/docs/21285_documentation.htm>.
304 tristate "JEDEC Flash device mapped on impA7"
305 depends on ARM && MTD_JEDECPROBE
307 This enables access to the NOR Flash on the impA7 board of
308 implementa GmbH. If you have such a board, say 'Y' here.
310 # This needs CFI or JEDEC, depending on the cards found.
312 tristate "PCI MTD driver"
313 depends on PCI && MTD_COMPLEX_MAPPINGS
315 Mapping for accessing flash devices on add-in cards like the Intel XScale
316 IQ80310 card, and the Intel EBSA285 card in blank ROM programming mode
317 (please see the manual for the link settings).
319 If you are not sure, say N.
322 tristate "PCMCIA MTD driver"
323 depends on PCMCIA && MTD_COMPLEX_MAPPINGS
325 Map driver for accessing PCMCIA linear flash memory cards. These
326 cards are usually around 4-16MiB in size. This does not include
327 Compact Flash cards which are treated as IDE devices.
329 config MTD_PCMCIA_ANONYMOUS
330 bool "Use PCMCIA MTD drivers for anonymous PCMCIA cards"
331 depends on MTD_PCMCIA
333 If this option is enabled, PCMCIA cards which do not report
334 anything about themselves are assumed to be MTD cards.
339 bool "Generic uClinux RAM/ROM filesystem support"
340 depends on (MTD_RAM=y || MTD_ROM=y) && (!MMU || COLDFIRE)
342 Map driver to support image based filesystems for uClinux.
345 tristate "Map driver for platform device RAM (mtd-ram)"
348 Map driver for RAM areas described via the platform device
351 This selection automatically selects the map_ram driver.
354 tristate "Map driver for Dreamcast VMU"
357 This driver enables access to the Dreamcast Visual Memory Unit (VMU).
359 Most Dreamcast users will want to say Y here.
361 To build this as a module select M here, the module will be called
365 tristate "MTD discovery driver for PISMO modules"
367 depends on ARCH_VERSATILE
369 This driver allows for discovery of PISMO modules - see
370 <http://www.pismoworld.org/>. These are small modules containing
371 up to five memory devices (eg, SRAM, flash, DOC) described by an
374 This driver does not create any MTD maps itself; instead it
375 creates MTD physmap and MTD SRAM platform devices. If you
376 enable this option, you should consider enabling MTD_PHYSMAP
377 and/or MTD_PLATRAM according to the devices on your module.
379 When built as a module, it will be called pismo.ko