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_SUN_UFLASH 131 tristate "Sun Microsystems userflash support" 132 depends on SPARC && MTD_CFI && PCI 133 help 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. 138 139config MTD_SC520CDP 140 tristate "CFI Flash device mapped on AMD SC520 CDP" 141 depends on (MELAN || COMPILE_TEST) && MTD_CFI 142 help 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. 146 147config MTD_NETSC520 148 tristate "CFI Flash device mapped on AMD NetSc520" 149 depends on (MELAN || COMPILE_TEST) && MTD_CFI 150 help 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'. 154 155config MTD_TS5500 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 160 help 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. 164 165 mtd0 and mtd2 are the two BIOS drives, which use the resident 166 flash disk (RFD) flash translation layer. 167 168 mtd1 allows you to reprogram your BIOS. BE VERY CAREFUL. 169 170 Note that jumper 3 ("Write Enable Drive A") must be set 171 otherwise detection won't succeed. 172 173config MTD_SBC_GXX 174 tristate "CFI Flash device mapped on Arcom SBC-GXx boards" 175 depends on X86 && MTD_CFI_INTELEXT && MTD_COMPLEX_MAPPINGS 176 help 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. 181 More info at 182 <http://www.arcomcontrols.com/products/icp/pc104/processors/SBC_GX1.htm>. 183 184config MTD_PXA2XX 185 tristate "CFI Flash device mapped on Intel XScale PXA2xx based boards" 186 depends on (PXA25x || PXA27x) && MTD_CFI_INTELEXT 187 help 188 This provides a driver for the NOR flash attached to a PXA2xx chip. 189 190config MTD_SCx200_DOCFLASH 191 tristate "Flash device mapped with DOCCS on NatSemi SCx200" 192 depends on SCx200 && MTD_CFI 193 help 194 Enable support for a flash chip mapped using the DOCCS signal on a 195 National Semiconductor SCx200 processor. 196 197 If you don't know what to do here, say N. 198 199 If compiled as a module, it will be called scx200_docflash. 200 201config MTD_AMD76XROM 202 tristate "BIOS flash chip on AMD76x southbridge" 203 depends on X86 && MTD_JEDECPROBE 204 help 205 Support for treating the BIOS flash chip on AMD76x motherboards 206 as an MTD device - with this you can reprogram your BIOS. 207 208 BE VERY CAREFUL. 209 210config MTD_ICHXROM 211 tristate "BIOS flash chip on Intel Controller Hub 2/3/4/5" 212 depends on X86 && MTD_JEDECPROBE 213 help 214 Support for treating the BIOS flash chip on ICHX motherboards 215 as an MTD device - with this you can reprogram your BIOS. 216 217 BE VERY CAREFUL. 218 219config MTD_ESB2ROM 220 tristate "BIOS flash chip on Intel ESB Controller Hub 2" 221 depends on X86 && MTD_JEDECPROBE && PCI 222 help 223 Support for treating the BIOS flash chip on ESB2 motherboards 224 as an MTD device - with this you can reprogram your BIOS. 225 226 BE VERY CAREFUL. 227 228config MTD_CK804XROM 229 tristate "BIOS flash chip on Nvidia CK804" 230 depends on X86 && MTD_JEDECPROBE && PCI 231 help 232 Support for treating the BIOS flash chip on nvidia motherboards 233 as an MTD device - with this you can reprogram your BIOS. 234 235 BE VERY CAREFUL. 236 237config MTD_SCB2_FLASH 238 tristate "BIOS flash chip on Intel SCB2 boards" 239 depends on X86 && MTD_JEDECPROBE && PCI 240 help 241 Support for treating the BIOS flash chip on Intel SCB2 boards 242 as an MTD device - with this you can reprogram your BIOS. 243 244 BE VERY CAREFUL. 245 246config MTD_TSUNAMI 247 tristate "Flash chips on Tsunami TIG bus" 248 depends on ALPHA_TSUNAMI && MTD_COMPLEX_MAPPINGS 249 help 250 Support for the flash chip on Tsunami TIG bus. 251 252config MTD_NETtel 253 tristate "CFI flash device on SnapGear/SecureEdge" 254 depends on X86 && MTD_JEDECPROBE 255 help 256 Support for flash chips on NETtel/SecureEdge/SnapGear boards. 257 258config MTD_LANTIQ 259 tristate "Lantiq SoC NOR support" 260 depends on LANTIQ 261 help 262 Support for NOR flash attached to the Lantiq SoC's External Bus Unit. 263 264config MTD_L440GX 265 tristate "BIOS flash chip on Intel L440GX boards" 266 depends on X86 && MTD_JEDECPROBE 267 help 268 Support for treating the BIOS flash chip on Intel L440GX motherboards 269 as an MTD device - with this you can reprogram your BIOS. 270 271 BE VERY CAREFUL. 272 273config MTD_CFI_FLAGADM 274 tristate "CFI Flash device mapping on FlagaDM" 275 depends on PPC_8xx && MTD_CFI 276 help 277 Mapping for the Flaga digital module. If you don't have one, ignore 278 this setting. 279 280config MTD_SOLUTIONENGINE 281 tristate "CFI Flash device mapped on Hitachi SolutionEngine" 282 depends on SOLUTION_ENGINE && MTD_CFI && MTD_REDBOOT_PARTS 283 help 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. 286 287config MTD_SA1100 288 tristate "CFI Flash device mapped on StrongARM SA11x0" 289 depends on MTD_CFI && ARCH_SA1100 290 help 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'. 294 295config MTD_DC21285 296 tristate "CFI Flash device mapped on DC21285 Footbridge" 297 depends on MTD_CFI && ARCH_FOOTBRIDGE && MTD_COMPLEX_MAPPINGS 298 help 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>. 302 303config MTD_IMPA7 304 tristate "JEDEC Flash device mapped on impA7" 305 depends on ARM && MTD_JEDECPROBE 306 help 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. 309 310# This needs CFI or JEDEC, depending on the cards found. 311config MTD_PCI 312 tristate "PCI MTD driver" 313 depends on PCI && MTD_COMPLEX_MAPPINGS 314 help 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). 318 319 If you are not sure, say N. 320 321config MTD_PCMCIA 322 tristate "PCMCIA MTD driver" 323 depends on PCMCIA && MTD_COMPLEX_MAPPINGS 324 help 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. 328 329config MTD_PCMCIA_ANONYMOUS 330 bool "Use PCMCIA MTD drivers for anonymous PCMCIA cards" 331 depends on MTD_PCMCIA 332 help 333 If this option is enabled, PCMCIA cards which do not report 334 anything about themselves are assumed to be MTD cards. 335 336 If unsure, say N. 337 338config MTD_UCLINUX 339 bool "Generic uClinux RAM/ROM filesystem support" 340 depends on (MTD_RAM=y || MTD_ROM=y) && (!MMU || COLDFIRE) 341 help 342 Map driver to support image based filesystems for uClinux. 343 344config MTD_PLATRAM 345 tristate "Map driver for platform device RAM (mtd-ram)" 346 select MTD_RAM 347 help 348 Map driver for RAM areas described via the platform device 349 system. 350 351 This selection automatically selects the map_ram driver. 352 353config MTD_VMU 354 tristate "Map driver for Dreamcast VMU" 355 depends on MAPLE 356 help 357 This driver enables access to the Dreamcast Visual Memory Unit (VMU). 358 359 Most Dreamcast users will want to say Y here. 360 361 To build this as a module select M here, the module will be called 362 vmu-flash. 363 364config MTD_PISMO 365 tristate "MTD discovery driver for PISMO modules" 366 depends on I2C 367 depends on ARCH_VERSATILE 368 help 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 372 I2C EEPROM. 373 374 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. 378 379 When built as a module, it will be called pismo.ko 380 381endmenu 382