1# 2# SPI driver configuration 3# 4# NOTE: the reason this doesn't show SPI slave support is mostly that 5# nobody's needed a slave side API yet. The master-role API is not 6# fully appropriate there, so it'd need some thought to do well. 7# 8menuconfig SPI 9 bool "SPI support" 10 depends on HAS_IOMEM 11 help 12 The "Serial Peripheral Interface" is a low level synchronous 13 protocol. Chips that support SPI can have data transfer rates 14 up to several tens of Mbit/sec. Chips are addressed with a 15 controller and a chipselect. Most SPI slaves don't support 16 dynamic device discovery; some are even write-only or read-only. 17 18 SPI is widely used by microcontrollers to talk with sensors, 19 eeprom and flash memory, codecs and various other controller 20 chips, analog to digital (and d-to-a) converters, and more. 21 MMC and SD cards can be accessed using SPI protocol; and for 22 DataFlash cards used in MMC sockets, SPI must always be used. 23 24 SPI is one of a family of similar protocols using a four wire 25 interface (select, clock, data in, data out) including Microwire 26 (half duplex), SSP, SSI, and PSP. This driver framework should 27 work with most such devices and controllers. 28 29if SPI 30 31config SPI_DEBUG 32 boolean "Debug support for SPI drivers" 33 depends on DEBUG_KERNEL 34 help 35 Say "yes" to enable debug messaging (like dev_dbg and pr_debug), 36 sysfs, and debugfs support in SPI controller and protocol drivers. 37 38# 39# MASTER side ... talking to discrete SPI slave chips including microcontrollers 40# 41 42config SPI_MASTER 43# boolean "SPI Master Support" 44 boolean 45 default SPI 46 help 47 If your system has an master-capable SPI controller (which 48 provides the clock and chipselect), you can enable that 49 controller and the protocol drivers for the SPI slave chips 50 that are connected. 51 52if SPI_MASTER 53 54comment "SPI Master Controller Drivers" 55 56config SPI_ALTERA 57 tristate "Altera SPI Controller" 58 select SPI_BITBANG 59 help 60 This is the driver for the Altera SPI Controller. 61 62config SPI_ATH79 63 tristate "Atheros AR71XX/AR724X/AR913X SPI controller driver" 64 depends on ATH79 && GENERIC_GPIO 65 select SPI_BITBANG 66 help 67 This enables support for the SPI controller present on the 68 Atheros AR71XX/AR724X/AR913X SoCs. 69 70config SPI_ATMEL 71 tristate "Atmel SPI Controller" 72 depends on (ARCH_AT91 || AVR32) 73 help 74 This selects a driver for the Atmel SPI Controller, present on 75 many AT32 (AVR32) and AT91 (ARM) chips. 76 77config SPI_BCM2835 78 tristate "BCM2835 SPI controller" 79 depends on ARCH_BCM2835 80 help 81 This selects a driver for the Broadcom BCM2835 SPI master. 82 83 The BCM2835 contains two types of SPI master controller; the 84 "universal SPI master", and the regular SPI controller. This driver 85 is for the regular SPI controller. Slave mode operation is not also 86 not supported. 87 88config SPI_BFIN5XX 89 tristate "SPI controller driver for ADI Blackfin5xx" 90 depends on BLACKFIN 91 help 92 This is the SPI controller master driver for Blackfin 5xx processor. 93 94config SPI_BFIN_SPORT 95 tristate "SPI bus via Blackfin SPORT" 96 depends on BLACKFIN 97 help 98 Enable support for a SPI bus via the Blackfin SPORT peripheral. 99 100config SPI_AU1550 101 tristate "Au1550/Au1200/Au1300 SPI Controller" 102 depends on MIPS_ALCHEMY 103 select SPI_BITBANG 104 help 105 If you say yes to this option, support will be included for the 106 PSC SPI controller found on Au1550, Au1200 and Au1300 series. 107 108config SPI_BCM63XX 109 tristate "Broadcom BCM63xx SPI controller" 110 depends on BCM63XX 111 help 112 Enable support for the SPI controller on the Broadcom BCM63xx SoCs. 113 114config SPI_BITBANG 115 tristate "Utilities for Bitbanging SPI masters" 116 help 117 With a few GPIO pins, your system can bitbang the SPI protocol. 118 Select this to get SPI support through I/O pins (GPIO, parallel 119 port, etc). Or, some systems' SPI master controller drivers use 120 this code to manage the per-word or per-transfer accesses to the 121 hardware shift registers. 122 123 This is library code, and is automatically selected by drivers that 124 need it. You only need to select this explicitly to support driver 125 modules that aren't part of this kernel tree. 126 127config SPI_BUTTERFLY 128 tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)" 129 depends on PARPORT 130 select SPI_BITBANG 131 help 132 This uses a custom parallel port cable to connect to an AVR 133 Butterfly <http://www.atmel.com/products/avr/butterfly>, an 134 inexpensive battery powered microcontroller evaluation board. 135 This same cable can be used to flash new firmware. 136 137config SPI_CLPS711X 138 tristate "CLPS711X host SPI controller" 139 depends on ARCH_CLPS711X 140 help 141 This enables dedicated general purpose SPI/Microwire1-compatible 142 master mode interface (SSI1) for CLPS711X-based CPUs. 143 144config SPI_COLDFIRE_QSPI 145 tristate "Freescale Coldfire QSPI controller" 146 depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x) 147 help 148 This enables support for the Coldfire QSPI controller in master 149 mode. 150 151config SPI_DAVINCI 152 tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller" 153 depends on ARCH_DAVINCI 154 select SPI_BITBANG 155 select TI_EDMA 156 help 157 SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules. 158 159config SPI_EP93XX 160 tristate "Cirrus Logic EP93xx SPI controller" 161 depends on ARCH_EP93XX 162 help 163 This enables using the Cirrus EP93xx SPI controller in master 164 mode. 165 166config SPI_FALCON 167 tristate "Falcon SPI controller support" 168 depends on SOC_FALCON 169 help 170 The external bus unit (EBU) found on the FALC-ON SoC has SPI 171 emulation that is designed for serial flash access. This driver 172 has only been tested with m25p80 type chips. The hardware has no 173 support for other types of SPI peripherals. 174 175config SPI_GPIO 176 tristate "GPIO-based bitbanging SPI Master" 177 depends on GENERIC_GPIO 178 select SPI_BITBANG 179 help 180 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO 181 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI 182 slaves connected to a bus using this driver are configured as usual, 183 except that the spi_board_info.controller_data holds the GPIO number 184 for the chipselect used by this controller driver. 185 186 Note that this driver often won't achieve even 1 Mbit/sec speeds, 187 making it unusually slow for SPI. If your platform can inline 188 GPIO operations, you should be able to leverage that for better 189 speed with a custom version of this driver; see the source code. 190 191config SPI_IMX 192 tristate "Freescale i.MX SPI controllers" 193 depends on ARCH_MXC 194 select SPI_BITBANG 195 default m if IMX_HAVE_PLATFORM_SPI_IMX 196 help 197 This enables using the Freescale i.MX SPI controllers in master 198 mode. 199 200config SPI_LM70_LLP 201 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)" 202 depends on PARPORT 203 select SPI_BITBANG 204 help 205 This driver supports the NS LM70 LLP Evaluation Board, 206 which interfaces to an LM70 temperature sensor using 207 a parallel port. 208 209config SPI_MPC52xx 210 tristate "Freescale MPC52xx SPI (non-PSC) controller support" 211 depends on PPC_MPC52xx 212 help 213 This drivers supports the MPC52xx SPI controller in master SPI 214 mode. 215 216config SPI_MPC52xx_PSC 217 tristate "Freescale MPC52xx PSC SPI controller" 218 depends on PPC_MPC52xx 219 help 220 This enables using the Freescale MPC52xx Programmable Serial 221 Controller in master SPI mode. 222 223config SPI_MPC512x_PSC 224 tristate "Freescale MPC512x PSC SPI controller" 225 depends on PPC_MPC512x 226 help 227 This enables using the Freescale MPC5121 Programmable Serial 228 Controller in SPI master mode. 229 230config SPI_FSL_LIB 231 tristate 232 depends on OF 233 234config SPI_FSL_CPM 235 tristate 236 depends on FSL_SOC 237 238config SPI_FSL_SPI 239 bool "Freescale SPI controller and Aeroflex Gaisler GRLIB SPI controller" 240 depends on OF 241 select SPI_FSL_LIB 242 select SPI_FSL_CPM if FSL_SOC 243 help 244 This enables using the Freescale SPI controllers in master mode. 245 MPC83xx platform uses the controller in cpu mode or CPM/QE mode. 246 MPC8569 uses the controller in QE mode, MPC8610 in cpu mode. 247 This also enables using the Aeroflex Gaisler GRLIB SPI controller in 248 master mode. 249 250config SPI_FSL_ESPI 251 bool "Freescale eSPI controller" 252 depends on FSL_SOC 253 select SPI_FSL_LIB 254 help 255 This enables using the Freescale eSPI controllers in master mode. 256 From MPC8536, 85xx platform uses the controller, and all P10xx, 257 P20xx, P30xx,P40xx, P50xx uses this controller. 258 259config SPI_OC_TINY 260 tristate "OpenCores tiny SPI" 261 depends on GENERIC_GPIO 262 select SPI_BITBANG 263 help 264 This is the driver for OpenCores tiny SPI master controller. 265 266config SPI_OCTEON 267 tristate "Cavium OCTEON SPI controller" 268 depends on CPU_CAVIUM_OCTEON 269 help 270 SPI host driver for the hardware found on some Cavium OCTEON 271 SOCs. 272 273config SPI_OMAP_UWIRE 274 tristate "OMAP1 MicroWire" 275 depends on ARCH_OMAP1 276 select SPI_BITBANG 277 help 278 This hooks up to the MicroWire controller on OMAP1 chips. 279 280config SPI_OMAP24XX 281 tristate "McSPI driver for OMAP" 282 depends on ARCH_OMAP2PLUS 283 help 284 SPI master controller for OMAP24XX and later Multichannel SPI 285 (McSPI) modules. 286 287config SPI_OMAP_100K 288 tristate "OMAP SPI 100K" 289 depends on ARCH_OMAP850 || ARCH_OMAP730 290 help 291 OMAP SPI 100K master controller for omap7xx boards. 292 293config SPI_ORION 294 tristate "Orion SPI master" 295 depends on PLAT_ORION 296 help 297 This enables using the SPI master controller on the Orion chips. 298 299config SPI_PL022 300 tristate "ARM AMBA PL022 SSP controller" 301 depends on ARM_AMBA 302 default y if MACH_U300 303 default y if ARCH_REALVIEW 304 default y if INTEGRATOR_IMPD1 305 default y if ARCH_VERSATILE 306 help 307 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP 308 controller. If you have an embedded system with an AMBA(R) 309 bus and a PL022 controller, say Y or M here. 310 311config SPI_PPC4xx 312 tristate "PPC4xx SPI Controller" 313 depends on PPC32 && 4xx 314 select SPI_BITBANG 315 help 316 This selects a driver for the PPC4xx SPI Controller. 317 318config SPI_PXA2XX_PXADMA 319 bool "PXA2xx SSP legacy PXA DMA API support" 320 depends on SPI_PXA2XX && ARCH_PXA 321 help 322 Enable PXA private legacy DMA API support. Note that this is 323 deprecated in favor of generic DMA engine API. 324 325config SPI_PXA2XX_DMA 326 def_bool y 327 depends on SPI_PXA2XX && !SPI_PXA2XX_PXADMA 328 329config SPI_PXA2XX 330 tristate "PXA2xx SSP SPI master" 331 depends on ARCH_PXA || PCI || ACPI 332 select PXA_SSP if ARCH_PXA 333 help 334 This enables using a PXA2xx or Sodaville SSP port as a SPI master 335 controller. The driver can be configured to use any SSP port and 336 additional documentation can be found a Documentation/spi/pxa2xx. 337 338config SPI_PXA2XX_PCI 339 def_tristate SPI_PXA2XX && PCI 340 341config SPI_RSPI 342 tristate "Renesas RSPI controller" 343 depends on SUPERH 344 help 345 SPI driver for Renesas RSPI blocks. 346 347config SPI_S3C24XX 348 tristate "Samsung S3C24XX series SPI" 349 depends on ARCH_S3C24XX 350 select SPI_BITBANG 351 help 352 SPI driver for Samsung S3C24XX series ARM SoCs 353 354config SPI_S3C24XX_FIQ 355 bool "S3C24XX driver with FIQ pseudo-DMA" 356 depends on SPI_S3C24XX 357 select FIQ 358 help 359 Enable FIQ support for the S3C24XX SPI driver to provide pseudo 360 DMA by using the fast-interrupt request framework, This allows 361 the driver to get DMA-like performance when there are either 362 no free DMA channels, or when doing transfers that required both 363 TX and RX data paths. 364 365config SPI_S3C64XX 366 tristate "Samsung S3C64XX series type SPI" 367 depends on (ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5P64X0 || ARCH_EXYNOS) 368 select S3C64XX_DMA if ARCH_S3C64XX 369 help 370 SPI driver for Samsung S3C64XX and newer SoCs. 371 372config SPI_SC18IS602 373 tristate "NXP SC18IS602/602B/603 I2C to SPI bridge" 374 depends on I2C 375 help 376 SPI driver for NXP SC18IS602/602B/603 I2C to SPI bridge. 377 378config SPI_SH_MSIOF 379 tristate "SuperH MSIOF SPI controller" 380 depends on (SUPERH || ARCH_SHMOBILE) && HAVE_CLK 381 select SPI_BITBANG 382 help 383 SPI driver for SuperH and SH Mobile MSIOF blocks. 384 385config SPI_SH 386 tristate "SuperH SPI controller" 387 depends on SUPERH 388 help 389 SPI driver for SuperH SPI blocks. 390 391config SPI_SH_SCI 392 tristate "SuperH SCI SPI controller" 393 depends on SUPERH 394 select SPI_BITBANG 395 help 396 SPI driver for SuperH SCI blocks. 397 398config SPI_SH_HSPI 399 tristate "SuperH HSPI controller" 400 depends on ARCH_SHMOBILE 401 help 402 SPI driver for SuperH HSPI blocks. 403 404config SPI_SIRF 405 tristate "CSR SiRFprimaII SPI controller" 406 depends on ARCH_PRIMA2 407 select SPI_BITBANG 408 help 409 SPI driver for CSR SiRFprimaII SoCs 410 411config SPI_MXS 412 tristate "Freescale MXS SPI controller" 413 depends on ARCH_MXS 414 select STMP_DEVICE 415 help 416 SPI driver for Freescale MXS devices. 417 418config SPI_TEGRA20_SFLASH 419 tristate "Nvidia Tegra20 Serial flash Controller" 420 depends on ARCH_TEGRA 421 help 422 SPI driver for Nvidia Tegra20 Serial flash Controller interface. 423 The main usecase of this controller is to use spi flash as boot 424 device. 425 426config SPI_TEGRA20_SLINK 427 tristate "Nvidia Tegra20/Tegra30 SLINK Controller" 428 depends on ARCH_TEGRA && TEGRA20_APB_DMA 429 help 430 SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface. 431 432config SPI_TI_SSP 433 tristate "TI Sequencer Serial Port - SPI Support" 434 depends on MFD_TI_SSP 435 help 436 This selects an SPI master implementation using a TI sequencer 437 serial port. 438 439config SPI_TOPCLIFF_PCH 440 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI" 441 depends on PCI 442 help 443 SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus 444 used in some x86 embedded processors. 445 446 This driver also supports the ML7213/ML7223/ML7831, a companion chip 447 for the Atom E6xx series and compatible with the Intel EG20T PCH. 448 449config SPI_TXX9 450 tristate "Toshiba TXx9 SPI controller" 451 depends on GENERIC_GPIO && CPU_TX49XX 452 help 453 SPI driver for Toshiba TXx9 MIPS SoCs 454 455config SPI_XCOMM 456 tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver" 457 depends on I2C 458 help 459 Support for the SPI-I2C bridge found on the Analog Devices 460 AD-FMCOMMS1-EBZ board. 461 462config SPI_XILINX 463 tristate "Xilinx SPI controller common module" 464 depends on HAS_IOMEM 465 select SPI_BITBANG 466 help 467 This exposes the SPI controller IP from the Xilinx EDK. 468 469 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)" 470 Product Specification document (DS464) for hardware details. 471 472 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)" 473 474config SPI_NUC900 475 tristate "Nuvoton NUC900 series SPI" 476 depends on ARCH_W90X900 477 select SPI_BITBANG 478 help 479 SPI driver for Nuvoton NUC900 series ARM SoCs 480 481# 482# Add new SPI master controllers in alphabetical order above this line 483# 484 485config SPI_DESIGNWARE 486 tristate "DesignWare SPI controller core support" 487 help 488 general driver for SPI controller core from DesignWare 489 490config SPI_DW_PCI 491 tristate "PCI interface driver for DW SPI core" 492 depends on SPI_DESIGNWARE && PCI 493 494config SPI_DW_MID_DMA 495 bool "DMA support for DW SPI controller on Intel Moorestown platform" 496 depends on SPI_DW_PCI && INTEL_MID_DMAC 497 498config SPI_DW_MMIO 499 tristate "Memory-mapped io interface driver for DW SPI core" 500 depends on SPI_DESIGNWARE && HAVE_CLK 501 502# 503# There are lots of SPI device types, with sensors and memory 504# being probably the most widely used ones. 505# 506comment "SPI Protocol Masters" 507 508config SPI_SPIDEV 509 tristate "User mode SPI device driver support" 510 help 511 This supports user mode SPI protocol drivers. 512 513 Note that this application programming interface is EXPERIMENTAL 514 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes. 515 516config SPI_TLE62X0 517 tristate "Infineon TLE62X0 (for power switching)" 518 depends on SYSFS 519 help 520 SPI driver for Infineon TLE62X0 series line driver chips, 521 such as the TLE6220, TLE6230 and TLE6240. This provides a 522 sysfs interface, with each line presented as a kind of GPIO 523 exposing both switch control and diagnostic feedback. 524 525# 526# Add new SPI protocol masters in alphabetical order above this line 527# 528 529endif # SPI_MASTER 530 531# (slave support would go here) 532 533endif # SPI 534