linux/drivers/mtd/maps/Kconfig
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   1# SPDX-License-Identifier: GPL-2.0-only
   2menu "Mapping drivers for chip access"
   3        depends on MTD!=n
   4        depends on HAS_IOMEM
   5
   6config MTD_COMPLEX_MAPPINGS
   7        bool "Support non-linear mappings of flash chips"
   8        help
   9          This causes the chip drivers to allow for complicated
  10          paged mappings of flash chips.
  11
  12config MTD_PHYSMAP
  13        tristate "Flash device in physical memory map"
  14        depends on MTD_CFI || MTD_JEDECPROBE || MTD_ROM || MTD_RAM || MTD_LPDDR
  15        help
  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.
  22
  23          To compile this driver as a module, choose M here: the
  24          module will be called physmap.
  25
  26config MTD_PHYSMAP_COMPAT
  27        bool "Physmap compat support"
  28        depends on MTD_PHYSMAP
  29        default n
  30        help
  31          Setup a simple mapping via the Kconfig options.  Normally the
  32          physmap configuration options are done via your board's
  33          resource file.
  34
  35          If unsure, say N here.
  36
  37config MTD_PHYSMAP_START
  38        hex "Physical start address of flash mapping"
  39        depends on MTD_PHYSMAP_COMPAT
  40        default "0x8000000"
  41        help
  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
  45          your board.
  46
  47config MTD_PHYSMAP_LEN
  48        hex "Physical length of flash mapping"
  49        depends on MTD_PHYSMAP_COMPAT
  50        default "0"
  51        help
  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
  57          board.
  58
  59config MTD_PHYSMAP_BANKWIDTH
  60        int "Bank width in octets"
  61        depends on MTD_PHYSMAP_COMPAT
  62        default "2"
  63        help
  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.
  68
  69config MTD_PHYSMAP_OF
  70        bool "Memory device in physical memory map based on OF description"
  71        depends on OF && MTD_PHYSMAP
  72        help
  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.
  77
  78config 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
  83        select MULTIPLEXER
  84        select MUX_MMIO
  85        help
  86          This provides some extra DT physmap parsing for the Baikal-T1
  87          platforms, some detection and setting up ROMs-specific accessors.
  88
  89config MTD_PHYSMAP_VERSATILE
  90        bool "ARM Versatile OF-based physical memory map handling"
  91        depends on MTD_PHYSMAP_OF
  92        depends on MFD_SYSCON
  93        default y if (ARCH_INTEGRATOR || ARCH_VERSATILE || ARCH_REALVIEW)
  94        help
  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.
  98
  99config 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
 104        default ARCH_GEMINI
 105        help
 106          This provides some extra DT physmap parsing for the Gemini
 107          platforms, some detection and setting up parallel mode on the
 108          external interface.
 109
 110config MTD_PHYSMAP_IXP4XX
 111        bool "Intel IXP4xx OF-based physical memory map handling"
 112        depends on MTD_PHYSMAP_OF
 113        depends on ARM
 114        select MTD_COMPLEX_MAPPINGS
 115        select MTD_CFI_BE_BYTE_SWAP if CPU_BIG_ENDIAN
 116        default ARCH_IXP4XX
 117        help
 118          This provides some extra DT physmap parsing for the Intel IXP4xx
 119          platforms, some elaborate endianness handling in particular.
 120
 121config 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
 126        help
 127          Extend the physmap driver to allow flashes to be partially
 128          physically addressed and assisted by GPIOs.
 129
 130config MTD_PMC_MSP_EVM
 131        tristate "CFI Flash device mapped on PMC-Sierra MSP"
 132        depends on PMC_MSP && MTD_CFI
 133        help
 134          This provides a 'mapping' driver which supports the way
 135          in which user-programmable flash chips are connected on the
 136          PMC-Sierra MSP eval/demo boards.
 137
 138choice
 139        prompt "Maximum mappable memory available for flash IO"
 140        depends on MTD_PMC_MSP_EVM
 141        default MSP_FLASH_MAP_LIMIT_32M
 142
 143config MSP_FLASH_MAP_LIMIT_32M
 144        bool "32M"
 145
 146endchoice
 147
 148config MSP_FLASH_MAP_LIMIT
 149        hex
 150        default "0x02000000"
 151        depends on MSP_FLASH_MAP_LIMIT_32M
 152
 153config MTD_SUN_UFLASH
 154        tristate "Sun Microsystems userflash support"
 155        depends on SPARC && MTD_CFI && PCI
 156        help
 157          This provides a 'mapping' driver which supports the way in
 158          which user-programmable flash chips are connected on various
 159          Sun Microsystems boardsets.  This driver will require CFI support
 160          in the kernel, so if you did not enable CFI previously, do that now.
 161
 162config MTD_SC520CDP
 163        tristate "CFI Flash device mapped on AMD SC520 CDP"
 164        depends on (MELAN || COMPILE_TEST) && MTD_CFI
 165        help
 166          The SC520 CDP board has two banks of CFI-compliant chips and one
 167          Dual-in-line JEDEC chip. This 'mapping' driver supports that
 168          arrangement, implementing three MTD devices.
 169
 170config MTD_NETSC520
 171        tristate "CFI Flash device mapped on AMD NetSc520"
 172        depends on (MELAN || COMPILE_TEST) && MTD_CFI
 173        help
 174          This enables access routines for the flash chips on the AMD NetSc520
 175          demonstration board. If you have one of these boards and would like
 176          to use the flash chips on it, say 'Y'.
 177
 178config MTD_TS5500
 179        tristate "JEDEC Flash device mapped on Technologic Systems TS-5500"
 180        depends on TS5500 || COMPILE_TEST
 181        select MTD_JEDECPROBE
 182        select MTD_CFI_AMDSTD
 183        help
 184          This provides a driver for the on-board flash of the Technologic
 185          System's TS-5500 board. The 2MB flash is split into 3 partitions
 186          which are accessed as separate MTD devices.
 187
 188          mtd0 and mtd2 are the two BIOS drives, which use the resident
 189          flash disk (RFD) flash translation layer.
 190
 191          mtd1 allows you to reprogram your BIOS. BE VERY CAREFUL.
 192
 193          Note that jumper 3 ("Write Enable Drive A") must be set
 194          otherwise detection won't succeed.
 195
 196config MTD_SBC_GXX
 197        tristate "CFI Flash device mapped on Arcom SBC-GXx boards"
 198        depends on X86 && MTD_CFI_INTELEXT && MTD_COMPLEX_MAPPINGS
 199        help
 200          This provides a driver for the on-board flash of Arcom Control
 201          Systems' SBC-GXn family of boards, formerly known as SBC-MediaGX.
 202          By default the flash is split into 3 partitions which are accessed
 203          as separate MTD devices. This board utilizes Intel StrataFlash.
 204          More info at
 205          <http://www.arcomcontrols.com/products/icp/pc104/processors/SBC_GX1.htm>.
 206
 207config MTD_PXA2XX
 208        tristate "CFI Flash device mapped on Intel XScale PXA2xx based boards"
 209        depends on (PXA25x || PXA27x) && MTD_CFI_INTELEXT
 210        help
 211          This provides a driver for the NOR flash attached to a PXA2xx chip.
 212
 213config MTD_SCx200_DOCFLASH
 214        tristate "Flash device mapped with DOCCS on NatSemi SCx200"
 215        depends on SCx200 && MTD_CFI
 216        help
 217          Enable support for a flash chip mapped using the DOCCS signal on a
 218          National Semiconductor SCx200 processor.
 219
 220          If you don't know what to do here, say N.
 221
 222          If compiled as a module, it will be called scx200_docflash.
 223
 224config MTD_AMD76XROM
 225        tristate "BIOS flash chip on AMD76x southbridge"
 226        depends on X86 && MTD_JEDECPROBE
 227        help
 228          Support for treating the BIOS flash chip on AMD76x motherboards
 229          as an MTD device - with this you can reprogram your BIOS.
 230
 231          BE VERY CAREFUL.
 232
 233config MTD_ICHXROM
 234        tristate "BIOS flash chip on Intel Controller Hub 2/3/4/5"
 235        depends on X86 && MTD_JEDECPROBE
 236        help
 237          Support for treating the BIOS flash chip on ICHX motherboards
 238          as an MTD device - with this you can reprogram your BIOS.
 239
 240          BE VERY CAREFUL.
 241
 242config MTD_ESB2ROM
 243        tristate "BIOS flash chip on Intel ESB Controller Hub 2"
 244        depends on X86 && MTD_JEDECPROBE && PCI
 245        help
 246          Support for treating the BIOS flash chip on ESB2 motherboards
 247          as an MTD device - with this you can reprogram your BIOS.
 248
 249          BE VERY CAREFUL.
 250
 251config MTD_CK804XROM
 252        tristate "BIOS flash chip on Nvidia CK804"
 253        depends on X86 && MTD_JEDECPROBE && PCI
 254        help
 255          Support for treating the BIOS flash chip on nvidia motherboards
 256          as an MTD device - with this you can reprogram your BIOS.
 257
 258          BE VERY CAREFUL.
 259
 260config MTD_SCB2_FLASH
 261        tristate "BIOS flash chip on Intel SCB2 boards"
 262        depends on X86 && MTD_JEDECPROBE && PCI
 263        help
 264          Support for treating the BIOS flash chip on Intel SCB2 boards
 265          as an MTD device - with this you can reprogram your BIOS.
 266
 267          BE VERY CAREFUL.
 268
 269config MTD_TSUNAMI
 270        tristate "Flash chips on Tsunami TIG bus"
 271        depends on ALPHA_TSUNAMI && MTD_COMPLEX_MAPPINGS
 272        help
 273          Support for the flash chip on Tsunami TIG bus.
 274
 275config MTD_NETtel
 276        tristate "CFI flash device on SnapGear/SecureEdge"
 277        depends on X86 && MTD_JEDECPROBE
 278        help
 279          Support for flash chips on NETtel/SecureEdge/SnapGear boards.
 280
 281config MTD_LANTIQ
 282        tristate "Lantiq SoC NOR support"
 283        depends on LANTIQ
 284        help
 285          Support for NOR flash attached to the Lantiq SoC's External Bus Unit.
 286
 287config MTD_L440GX
 288        tristate "BIOS flash chip on Intel L440GX boards"
 289        depends on X86 && MTD_JEDECPROBE
 290        help
 291          Support for treating the BIOS flash chip on Intel L440GX motherboards
 292          as an MTD device - with this you can reprogram your BIOS.
 293
 294          BE VERY CAREFUL.
 295
 296config MTD_CFI_FLAGADM
 297        tristate "CFI Flash device mapping on FlagaDM"
 298        depends on PPC_8xx && MTD_CFI
 299        help
 300          Mapping for the Flaga digital module. If you don't have one, ignore
 301          this setting.
 302
 303config MTD_SOLUTIONENGINE
 304        tristate "CFI Flash device mapped on Hitachi SolutionEngine"
 305        depends on SOLUTION_ENGINE && MTD_CFI && MTD_REDBOOT_PARTS
 306        help
 307          This enables access to the flash chips on the Hitachi SolutionEngine and
 308          similar boards. Say 'Y' if you are building a kernel for such a board.
 309
 310config MTD_SA1100
 311        tristate "CFI Flash device mapped on StrongARM SA11x0"
 312        depends on MTD_CFI && ARCH_SA1100
 313        help
 314          This enables access to the flash chips on most platforms based on
 315          the SA1100 and SA1110, including the Assabet and the Compaq iPAQ.
 316          If you have such a board, say 'Y'.
 317
 318config MTD_DC21285
 319        tristate "CFI Flash device mapped on DC21285 Footbridge"
 320        depends on MTD_CFI && ARCH_FOOTBRIDGE && MTD_COMPLEX_MAPPINGS
 321        help
 322          This provides a driver for the flash accessed using Intel's
 323          21285 bridge used with Intel's StrongARM processors. More info at
 324          <https://www.intel.com/design/bridge/docs/21285_documentation.htm>.
 325
 326config MTD_IXP4XX
 327        tristate "CFI Flash device mapped on Intel IXP4xx based systems"
 328        depends on MTD_CFI && MTD_COMPLEX_MAPPINGS && ARCH_IXP4XX
 329        help
 330          This enables MTD access to flash devices on platforms based
 331          on Intel's IXP4xx family of network processors such as the
 332          IXDP425 and Coyote. If you have an IXP4xx based board and
 333          would like to use the flash chips on it, say 'Y'.
 334
 335config MTD_IMPA7
 336        tristate "JEDEC Flash device mapped on impA7"
 337        depends on ARM && MTD_JEDECPROBE
 338        help
 339          This enables access to the NOR Flash on the impA7 board of
 340          implementa GmbH. If you have such a board, say 'Y' here.
 341
 342# This needs CFI or JEDEC, depending on the cards found.
 343config MTD_PCI
 344        tristate "PCI MTD driver"
 345        depends on PCI && MTD_COMPLEX_MAPPINGS
 346        help
 347          Mapping for accessing flash devices on add-in cards like the Intel XScale
 348          IQ80310 card, and the Intel EBSA285 card in blank ROM programming mode
 349          (please see the manual for the link settings).
 350
 351          If you are not sure, say N.
 352
 353config MTD_PCMCIA
 354        tristate "PCMCIA MTD driver"
 355        depends on PCMCIA && MTD_COMPLEX_MAPPINGS
 356        help
 357          Map driver for accessing PCMCIA linear flash memory cards. These
 358          cards are usually around 4-16MiB in size. This does not include
 359          Compact Flash cards which are treated as IDE devices.
 360
 361config MTD_PCMCIA_ANONYMOUS
 362        bool "Use PCMCIA MTD drivers for anonymous PCMCIA cards"
 363        depends on MTD_PCMCIA
 364        help
 365          If this option is enabled, PCMCIA cards which do not report
 366          anything about themselves are assumed to be MTD cards.
 367
 368          If unsure, say N.
 369
 370config MTD_UCLINUX
 371        bool "Generic uClinux RAM/ROM filesystem support"
 372        depends on (MTD_RAM=y || MTD_ROM=y) && (!MMU || COLDFIRE)
 373        help
 374          Map driver to support image based filesystems for uClinux.
 375
 376config MTD_INTEL_VR_NOR
 377        tristate "NOR flash on Intel Vermilion Range Expansion Bus CS0"
 378        depends on PCI
 379        help
 380          Map driver for a NOR flash bank located on the Expansion Bus of the
 381          Intel Vermilion Range chipset.
 382
 383config MTD_RBTX4939
 384        tristate "Map driver for RBTX4939 board"
 385        depends on TOSHIBA_RBTX4939 && MTD_CFI && MTD_COMPLEX_MAPPINGS
 386        help
 387          Map driver for NOR flash chips on RBTX4939 board.
 388
 389config MTD_PLATRAM
 390        tristate "Map driver for platform device RAM (mtd-ram)"
 391        select MTD_RAM
 392        help
 393          Map driver for RAM areas described via the platform device
 394          system.
 395
 396          This selection automatically selects the map_ram driver.
 397
 398config MTD_VMU
 399        tristate "Map driver for Dreamcast VMU"
 400        depends on MAPLE
 401        help
 402          This driver enables access to the Dreamcast Visual Memory Unit (VMU).
 403
 404          Most Dreamcast users will want to say Y here.
 405
 406          To build this as a module select M here, the module will be called
 407          vmu-flash.
 408
 409config MTD_PISMO
 410        tristate "MTD discovery driver for PISMO modules"
 411        depends on I2C
 412        depends on ARCH_VERSATILE
 413        help
 414          This driver allows for discovery of PISMO modules - see
 415          <http://www.pismoworld.org/>.  These are small modules containing
 416          up to five memory devices (eg, SRAM, flash, DOC) described by an
 417          I2C EEPROM.
 418
 419          This driver does not create any MTD maps itself; instead it
 420          creates MTD physmap and MTD SRAM platform devices.  If you
 421          enable this option, you should consider enabling MTD_PHYSMAP
 422          and/or MTD_PLATRAM according to the devices on your module.
 423
 424          When built as a module, it will be called pismo.ko
 425
 426endmenu
 427