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_BFIN5XX 78 tristate "SPI controller driver for ADI Blackfin5xx" 79 depends on BLACKFIN 80 help 81 This is the SPI controller master driver for Blackfin 5xx processor. 82 83config SPI_BFIN_SPORT 84 tristate "SPI bus via Blackfin SPORT" 85 depends on BLACKFIN 86 help 87 Enable support for a SPI bus via the Blackfin SPORT peripheral. 88 89config SPI_AU1550 90 tristate "Au1550/Au1200/Au1300 SPI Controller" 91 depends on MIPS_ALCHEMY && EXPERIMENTAL 92 select SPI_BITBANG 93 help 94 If you say yes to this option, support will be included for the 95 PSC SPI controller found on Au1550, Au1200 and Au1300 series. 96 97config SPI_BCM63XX 98 tristate "Broadcom BCM63xx SPI controller" 99 depends on BCM63XX 100 help 101 Enable support for the SPI controller on the Broadcom BCM63xx SoCs. 102 103config SPI_BITBANG 104 tristate "Utilities for Bitbanging SPI masters" 105 help 106 With a few GPIO pins, your system can bitbang the SPI protocol. 107 Select this to get SPI support through I/O pins (GPIO, parallel 108 port, etc). Or, some systems' SPI master controller drivers use 109 this code to manage the per-word or per-transfer accesses to the 110 hardware shift registers. 111 112 This is library code, and is automatically selected by drivers that 113 need it. You only need to select this explicitly to support driver 114 modules that aren't part of this kernel tree. 115 116config SPI_BUTTERFLY 117 tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)" 118 depends on PARPORT 119 select SPI_BITBANG 120 help 121 This uses a custom parallel port cable to connect to an AVR 122 Butterfly <http://www.atmel.com/products/avr/butterfly>, an 123 inexpensive battery powered microcontroller evaluation board. 124 This same cable can be used to flash new firmware. 125 126config SPI_COLDFIRE_QSPI 127 tristate "Freescale Coldfire QSPI controller" 128 depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x) 129 help 130 This enables support for the Coldfire QSPI controller in master 131 mode. 132 133config SPI_DAVINCI 134 tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller" 135 depends on ARCH_DAVINCI 136 select SPI_BITBANG 137 help 138 SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules. 139 140config SPI_EP93XX 141 tristate "Cirrus Logic EP93xx SPI controller" 142 depends on ARCH_EP93XX 143 help 144 This enables using the Cirrus EP93xx SPI controller in master 145 mode. 146 147config SPI_FALCON 148 tristate "Falcon SPI controller support" 149 depends on SOC_FALCON 150 help 151 The external bus unit (EBU) found on the FALC-ON SoC has SPI 152 emulation that is designed for serial flash access. This driver 153 has only been tested with m25p80 type chips. The hardware has no 154 support for other types of SPI peripherals. 155 156config SPI_GPIO 157 tristate "GPIO-based bitbanging SPI Master" 158 depends on GENERIC_GPIO 159 select SPI_BITBANG 160 help 161 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO 162 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI 163 slaves connected to a bus using this driver are configured as usual, 164 except that the spi_board_info.controller_data holds the GPIO number 165 for the chipselect used by this controller driver. 166 167 Note that this driver often won't achieve even 1 Mbit/sec speeds, 168 making it unusually slow for SPI. If your platform can inline 169 GPIO operations, you should be able to leverage that for better 170 speed with a custom version of this driver; see the source code. 171 172config SPI_IMX 173 tristate "Freescale i.MX SPI controllers" 174 depends on ARCH_MXC 175 select SPI_BITBANG 176 default m if IMX_HAVE_PLATFORM_SPI_IMX 177 help 178 This enables using the Freescale i.MX SPI controllers in master 179 mode. 180 181config SPI_LM70_LLP 182 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)" 183 depends on PARPORT && EXPERIMENTAL 184 select SPI_BITBANG 185 help 186 This driver supports the NS LM70 LLP Evaluation Board, 187 which interfaces to an LM70 temperature sensor using 188 a parallel port. 189 190config SPI_MPC52xx 191 tristate "Freescale MPC52xx SPI (non-PSC) controller support" 192 depends on PPC_MPC52xx 193 help 194 This drivers supports the MPC52xx SPI controller in master SPI 195 mode. 196 197config SPI_MPC52xx_PSC 198 tristate "Freescale MPC52xx PSC SPI controller" 199 depends on PPC_MPC52xx && EXPERIMENTAL 200 help 201 This enables using the Freescale MPC52xx Programmable Serial 202 Controller in master SPI mode. 203 204config SPI_MPC512x_PSC 205 tristate "Freescale MPC512x PSC SPI controller" 206 depends on PPC_MPC512x 207 help 208 This enables using the Freescale MPC5121 Programmable Serial 209 Controller in SPI master mode. 210 211config SPI_FSL_LIB 212 tristate 213 depends on FSL_SOC 214 215config SPI_FSL_SPI 216 bool "Freescale SPI controller" 217 depends on FSL_SOC 218 select SPI_FSL_LIB 219 help 220 This enables using the Freescale SPI controllers in master mode. 221 MPC83xx platform uses the controller in cpu mode or CPM/QE mode. 222 MPC8569 uses the controller in QE mode, MPC8610 in cpu mode. 223 224config SPI_FSL_ESPI 225 bool "Freescale eSPI controller" 226 depends on FSL_SOC 227 select SPI_FSL_LIB 228 help 229 This enables using the Freescale eSPI controllers in master mode. 230 From MPC8536, 85xx platform uses the controller, and all P10xx, 231 P20xx, P30xx,P40xx, P50xx uses this controller. 232 233config SPI_OC_TINY 234 tristate "OpenCores tiny SPI" 235 depends on GENERIC_GPIO 236 select SPI_BITBANG 237 help 238 This is the driver for OpenCores tiny SPI master controller. 239 240config SPI_OMAP_UWIRE 241 tristate "OMAP1 MicroWire" 242 depends on ARCH_OMAP1 243 select SPI_BITBANG 244 help 245 This hooks up to the MicroWire controller on OMAP1 chips. 246 247config SPI_OMAP24XX 248 tristate "McSPI driver for OMAP" 249 depends on ARCH_OMAP2PLUS 250 help 251 SPI master controller for OMAP24XX and later Multichannel SPI 252 (McSPI) modules. 253 254config SPI_OMAP_100K 255 tristate "OMAP SPI 100K" 256 depends on ARCH_OMAP850 || ARCH_OMAP730 257 help 258 OMAP SPI 100K master controller for omap7xx boards. 259 260config SPI_ORION 261 tristate "Orion SPI master (EXPERIMENTAL)" 262 depends on PLAT_ORION && EXPERIMENTAL 263 help 264 This enables using the SPI master controller on the Orion chips. 265 266config SPI_PL022 267 tristate "ARM AMBA PL022 SSP controller" 268 depends on ARM_AMBA 269 default y if MACH_U300 270 default y if ARCH_REALVIEW 271 default y if INTEGRATOR_IMPD1 272 default y if ARCH_VERSATILE 273 help 274 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP 275 controller. If you have an embedded system with an AMBA(R) 276 bus and a PL022 controller, say Y or M here. 277 278config SPI_PPC4xx 279 tristate "PPC4xx SPI Controller" 280 depends on PPC32 && 4xx 281 select SPI_BITBANG 282 help 283 This selects a driver for the PPC4xx SPI Controller. 284 285config SPI_PXA2XX 286 tristate "PXA2xx SSP SPI master" 287 depends on (ARCH_PXA || (X86_32 && PCI)) && EXPERIMENTAL 288 select PXA_SSP if ARCH_PXA 289 help 290 This enables using a PXA2xx or Sodaville SSP port as a SPI master 291 controller. The driver can be configured to use any SSP port and 292 additional documentation can be found a Documentation/spi/pxa2xx. 293 294config SPI_PXA2XX_PCI 295 def_bool SPI_PXA2XX && X86_32 && PCI 296 297config SPI_RSPI 298 tristate "Renesas RSPI controller" 299 depends on SUPERH 300 help 301 SPI driver for Renesas RSPI blocks. 302 303config SPI_S3C24XX 304 tristate "Samsung S3C24XX series SPI" 305 depends on ARCH_S3C24XX && EXPERIMENTAL 306 select SPI_BITBANG 307 help 308 SPI driver for Samsung S3C24XX series ARM SoCs 309 310config SPI_S3C24XX_FIQ 311 bool "S3C24XX driver with FIQ pseudo-DMA" 312 depends on SPI_S3C24XX 313 select FIQ 314 help 315 Enable FIQ support for the S3C24XX SPI driver to provide pseudo 316 DMA by using the fast-interrupt request framework, This allows 317 the driver to get DMA-like performance when there are either 318 no free DMA channels, or when doing transfers that required both 319 TX and RX data paths. 320 321config SPI_S3C64XX 322 tristate "Samsung S3C64XX series type SPI" 323 depends on (ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5P64X0 || ARCH_EXYNOS) 324 select S3C64XX_DMA if ARCH_S3C64XX 325 help 326 SPI driver for Samsung S3C64XX and newer SoCs. 327 328config SPI_SH_MSIOF 329 tristate "SuperH MSIOF SPI controller" 330 depends on SUPERH && HAVE_CLK 331 select SPI_BITBANG 332 help 333 SPI driver for SuperH MSIOF blocks. 334 335config SPI_SH 336 tristate "SuperH SPI controller" 337 depends on SUPERH 338 help 339 SPI driver for SuperH SPI blocks. 340 341config SPI_SH_SCI 342 tristate "SuperH SCI SPI controller" 343 depends on SUPERH 344 select SPI_BITBANG 345 help 346 SPI driver for SuperH SCI blocks. 347 348config SPI_SH_HSPI 349 tristate "SuperH HSPI controller" 350 depends on ARCH_SHMOBILE 351 help 352 SPI driver for SuperH HSPI blocks. 353 354config SPI_SIRF 355 tristate "CSR SiRFprimaII SPI controller" 356 depends on ARCH_PRIMA2 357 select SPI_BITBANG 358 help 359 SPI driver for CSR SiRFprimaII SoCs 360 361config SPI_STMP3XXX 362 tristate "Freescale STMP37xx/378x SPI/SSP controller" 363 depends on ARCH_STMP3XXX 364 help 365 SPI driver for Freescale STMP37xx/378x SoC SSP interface 366 367config SPI_TEGRA 368 tristate "Nvidia Tegra SPI controller" 369 depends on ARCH_TEGRA && TEGRA20_APB_DMA 370 help 371 SPI driver for NVidia Tegra SoCs 372 373config SPI_TI_SSP 374 tristate "TI Sequencer Serial Port - SPI Support" 375 depends on MFD_TI_SSP 376 help 377 This selects an SPI master implementation using a TI sequencer 378 serial port. 379 380config SPI_TOPCLIFF_PCH 381 tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI" 382 depends on PCI 383 help 384 SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus 385 used in some x86 embedded processors. 386 387 This driver also supports the ML7213/ML7223/ML7831, a companion chip 388 for the Atom E6xx series and compatible with the Intel EG20T PCH. 389 390config SPI_TXX9 391 tristate "Toshiba TXx9 SPI controller" 392 depends on GENERIC_GPIO && CPU_TX49XX 393 help 394 SPI driver for Toshiba TXx9 MIPS SoCs 395 396config SPI_XCOMM 397 tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver" 398 depends on I2C 399 help 400 Support for the SPI-I2C bridge found on the Analog Devices 401 AD-FMCOMMS1-EBZ board. 402 403config SPI_XILINX 404 tristate "Xilinx SPI controller common module" 405 depends on HAS_IOMEM && EXPERIMENTAL 406 select SPI_BITBANG 407 help 408 This exposes the SPI controller IP from the Xilinx EDK. 409 410 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)" 411 Product Specification document (DS464) for hardware details. 412 413 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)" 414 415config SPI_NUC900 416 tristate "Nuvoton NUC900 series SPI" 417 depends on ARCH_W90X900 && EXPERIMENTAL 418 select SPI_BITBANG 419 help 420 SPI driver for Nuvoton NUC900 series ARM SoCs 421 422# 423# Add new SPI master controllers in alphabetical order above this line 424# 425 426config SPI_DESIGNWARE 427 tristate "DesignWare SPI controller core support" 428 help 429 general driver for SPI controller core from DesignWare 430 431config SPI_DW_PCI 432 tristate "PCI interface driver for DW SPI core" 433 depends on SPI_DESIGNWARE && PCI 434 435config SPI_DW_MID_DMA 436 bool "DMA support for DW SPI controller on Intel Moorestown platform" 437 depends on SPI_DW_PCI && INTEL_MID_DMAC 438 439config SPI_DW_MMIO 440 tristate "Memory-mapped io interface driver for DW SPI core" 441 depends on SPI_DESIGNWARE && HAVE_CLK 442 443# 444# There are lots of SPI device types, with sensors and memory 445# being probably the most widely used ones. 446# 447comment "SPI Protocol Masters" 448 449config SPI_SPIDEV 450 tristate "User mode SPI device driver support" 451 depends on EXPERIMENTAL 452 help 453 This supports user mode SPI protocol drivers. 454 455 Note that this application programming interface is EXPERIMENTAL 456 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes. 457 458config SPI_TLE62X0 459 tristate "Infineon TLE62X0 (for power switching)" 460 depends on SYSFS 461 help 462 SPI driver for Infineon TLE62X0 series line driver chips, 463 such as the TLE6220, TLE6230 and TLE6240. This provides a 464 sysfs interface, with each line presented as a kind of GPIO 465 exposing both switch control and diagnostic feedback. 466 467# 468# Add new SPI protocol masters in alphabetical order above this line 469# 470 471endif # SPI_MASTER 472 473# (slave support would go here) 474 475endif # SPI 476