2 # SPI driver configuration
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.
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.
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.
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.
32 boolean "Debug support for SPI drivers"
33 depends on DEBUG_KERNEL
35 Say "yes" to enable debug messaging (like dev_dbg and pr_debug),
36 sysfs, and debugfs support in SPI controller and protocol drivers.
39 # MASTER side ... talking to discrete SPI slave chips including microcontrollers
43 # boolean "SPI Master Support"
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
54 comment "SPI Master Controller Drivers"
57 tristate "Atmel SPI Controller"
58 depends on (ARCH_AT91 || AVR32)
60 This selects a driver for the Atmel SPI Controller, present on
61 many AT32 (AVR32) and AT91 (ARM) chips.
64 tristate "SPI controller driver for ADI Blackfin5xx"
67 This is the SPI controller master driver for Blackfin 5xx processor.
70 tristate "Au1550/Au12x0 SPI Controller"
71 depends on (SOC_AU1550 || SOC_AU1200) && EXPERIMENTAL
74 If you say yes to this option, support will be included for the
75 Au1550 SPI controller (may also work with Au1200,Au1210,Au1250).
77 This driver can also be built as a module. If so, the module
78 will be called au1550_spi.
81 tristate "Utilities for Bitbanging SPI masters"
83 With a few GPIO pins, your system can bitbang the SPI protocol.
84 Select this to get SPI support through I/O pins (GPIO, parallel
85 port, etc). Or, some systems' SPI master controller drivers use
86 this code to manage the per-word or per-transfer accesses to the
87 hardware shift registers.
89 This is library code, and is automatically selected by drivers that
90 need it. You only need to select this explicitly to support driver
91 modules that aren't part of this kernel tree.
94 tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
98 This uses a custom parallel port cable to connect to an AVR
99 Butterfly <http://www.atmel.com/products/avr/butterfly>, an
100 inexpensive battery powered microcontroller evaluation board.
101 This same cable can be used to flash new firmware.
103 config SPI_COLDFIRE_QSPI
104 tristate "Freescale Coldfire QSPI controller"
105 depends on (M520x || M523x || M5249 || M527x || M528x || M532x)
107 This enables support for the Coldfire QSPI controller in master
110 This driver can also be built as a module. If so, the module
111 will be called coldfire_qspi.
114 tristate "SPI controller driver for DaVinci/DA8xx SoC's"
115 depends on SPI_MASTER && ARCH_DAVINCI
118 SPI master controller for DaVinci and DA8xx SPI modules.
121 tristate "Cirrus Logic EP93xx SPI controller"
122 depends on ARCH_EP93XX
124 This enables using the Cirrus EP93xx SPI controller in master
127 To compile this driver as a module, choose M here. The module will be
131 tristate "GPIO-based bitbanging SPI Master"
132 depends on GENERIC_GPIO
135 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
136 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI
137 slaves connected to a bus using this driver are configured as usual,
138 except that the spi_board_info.controller_data holds the GPIO number
139 for the chipselect used by this controller driver.
141 Note that this driver often won't achieve even 1 Mbit/sec speeds,
142 making it unusually slow for SPI. If your platform can inline
143 GPIO operations, you should be able to leverage that for better
144 speed with a custom version of this driver; see the source code.
146 config SPI_IMX_VER_IMX1
147 def_bool y if SOC_IMX1
149 config SPI_IMX_VER_0_0
150 def_bool y if SOC_IMX21 || SOC_IMX27
152 config SPI_IMX_VER_0_4
153 def_bool y if ARCH_MX31
155 config SPI_IMX_VER_0_7
156 def_bool y if ARCH_MX25 || ARCH_MX35 || ARCH_MX51
158 config SPI_IMX_VER_2_3
159 def_bool y if ARCH_MX51
162 tristate "Freescale i.MX SPI controllers"
165 default m if IMX_HAVE_PLATFORM_SPI_IMX
167 This enables using the Freescale i.MX SPI controllers in master
171 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
172 depends on PARPORT && EXPERIMENTAL
175 This driver supports the NS LM70 LLP Evaluation Board,
176 which interfaces to an LM70 temperature sensor using
180 tristate "Freescale MPC52xx SPI (non-PSC) controller support"
181 depends on PPC_MPC52xx && SPI
184 This drivers supports the MPC52xx SPI controller in master SPI
187 config SPI_MPC52xx_PSC
188 tristate "Freescale MPC52xx PSC SPI controller"
189 depends on PPC_MPC52xx && EXPERIMENTAL
191 This enables using the Freescale MPC52xx Programmable Serial
192 Controller in master SPI mode.
194 config SPI_MPC512x_PSC
195 tristate "Freescale MPC512x PSC SPI controller"
196 depends on SPI_MASTER && PPC_MPC512x
198 This enables using the Freescale MPC5121 Programmable Serial
199 Controller in SPI master mode.
206 tristate "Freescale SPI controller"
210 This enables using the Freescale SPI controllers in master mode.
211 MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
212 MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
215 tristate "Freescale eSPI controller"
219 This enables using the Freescale eSPI controllers in master mode.
220 From MPC8536, 85xx platform uses the controller, and all P10xx,
221 P20xx, P30xx,P40xx, P50xx uses this controller.
223 config SPI_OMAP_UWIRE
224 tristate "OMAP1 MicroWire"
225 depends on ARCH_OMAP1
228 This hooks up to the MicroWire controller on OMAP1 chips.
231 tristate "McSPI driver for OMAP"
232 depends on ARCH_OMAP2PLUS
234 SPI master controller for OMAP24XX and later Multichannel SPI
238 tristate "OMAP SPI 100K"
239 depends on SPI_MASTER && (ARCH_OMAP850 || ARCH_OMAP730)
241 OMAP SPI 100K master controller for omap7xx boards.
244 tristate "Orion SPI master (EXPERIMENTAL)"
245 depends on PLAT_ORION && EXPERIMENTAL
247 This enables using the SPI master controller on the Orion chips.
250 tristate "ARM AMBA PL022 SSP controller (EXPERIMENTAL)"
251 depends on ARM_AMBA && EXPERIMENTAL
252 default y if MACH_U300
253 default y if ARCH_REALVIEW
254 default y if INTEGRATOR_IMPD1
255 default y if ARCH_VERSATILE
257 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
258 controller. If you have an embedded system with an AMBA(R)
259 bus and a PL022 controller, say Y or M here.
262 tristate "PPC4xx SPI Controller"
263 depends on PPC32 && 4xx && SPI_MASTER
266 This selects a driver for the PPC4xx SPI Controller.
269 tristate "PXA2xx SSP SPI master"
270 depends on ARCH_PXA && EXPERIMENTAL
273 This enables using a PXA2xx SSP port as a SPI master controller.
274 The driver can be configured to use any SSP port and additional
275 documentation can be found a Documentation/spi/pxa2xx.
278 tristate "Samsung S3C24XX series SPI"
279 depends on ARCH_S3C2410 && EXPERIMENTAL
282 SPI driver for Samsung S3C24XX series ARM SoCs
284 config SPI_S3C24XX_FIQ
285 bool "S3C24XX driver with FIQ pseudo-DMA"
286 depends on SPI_S3C24XX
289 Enable FIQ support for the S3C24XX SPI driver to provide pseudo
290 DMA by using the fast-interrupt request framework, This allows
291 the driver to get DMA-like performance when there are either
292 no free DMA channels, or when doing transfers that required both
293 TX and RX data paths.
295 config SPI_S3C24XX_GPIO
296 tristate "Samsung S3C24XX series SPI by GPIO"
297 depends on ARCH_S3C2410 && EXPERIMENTAL
300 SPI driver for Samsung S3C24XX series ARM SoCs using
301 GPIO lines to provide the SPI bus. This can be used where
302 the inbuilt hardware cannot provide the transfer mode, or
303 where the board is using non hardware connected pins.
306 tristate "Samsung S3C64XX series type SPI"
307 depends on ARCH_S3C64XX && EXPERIMENTAL
310 SPI driver for Samsung S3C64XX and newer SoCs.
313 tristate "SuperH MSIOF SPI controller"
314 depends on SUPERH && HAVE_CLK
317 SPI driver for SuperH MSIOF blocks.
320 tristate "SuperH SCI SPI controller"
324 SPI driver for SuperH SCI blocks.
327 tristate "Freescale STMP37xx/378x SPI/SSP controller"
328 depends on ARCH_STMP3XXX && SPI_MASTER
330 SPI driver for Freescale STMP37xx/378x SoC SSP interface
333 tristate "Nvidia Tegra SPI controller"
334 depends on ARCH_TEGRA
335 select TEGRA_SYSTEM_DMA
337 SPI driver for NVidia Tegra SoCs
339 config SPI_TOPCLIFF_PCH
340 tristate "Topcliff PCH SPI Controller"
343 SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
344 used in some x86 embedded processors.
347 tristate "Toshiba TXx9 SPI controller"
348 depends on GENERIC_GPIO && CPU_TX49XX
350 SPI driver for Toshiba TXx9 MIPS SoCs
353 tristate "Xilinx SPI controller common module"
354 depends on HAS_IOMEM && EXPERIMENTAL
356 select SPI_XILINX_OF if (XILINX_VIRTEX || MICROBLAZE)
358 This exposes the SPI controller IP from the Xilinx EDK.
360 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
361 Product Specification document (DS464) for hardware details.
363 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
366 tristate "Xilinx SPI controller OF device"
367 depends on SPI_XILINX && (XILINX_VIRTEX || MICROBLAZE)
369 This is the OF driver for the SPI controller IP from the Xilinx EDK.
371 config SPI_XILINX_PLTFM
372 tristate "Xilinx SPI controller platform device"
373 depends on SPI_XILINX
375 This is the platform driver for the SPI controller IP
379 tristate "Nuvoton NUC900 series SPI"
380 depends on ARCH_W90X900 && EXPERIMENTAL
383 SPI driver for Nuvoton NUC900 series ARM SoCs
386 # Add new SPI master controllers in alphabetical order above this line
389 config SPI_DESIGNWARE
390 tristate "DesignWare SPI controller core support"
391 depends on SPI_MASTER
393 general driver for SPI controller core from DesignWare
396 tristate "PCI interface driver for DW SPI core"
397 depends on SPI_DESIGNWARE && PCI
400 tristate "Memory-mapped io interface driver for DW SPI core"
401 depends on SPI_DESIGNWARE && HAVE_CLK
404 # There are lots of SPI device types, with sensors and memory
405 # being probably the most widely used ones.
407 comment "SPI Protocol Masters"
410 tristate "User mode SPI device driver support"
411 depends on EXPERIMENTAL
413 This supports user mode SPI protocol drivers.
415 Note that this application programming interface is EXPERIMENTAL
416 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
419 tristate "Infineon TLE62X0 (for power switching)"
422 SPI driver for Infineon TLE62X0 series line driver chips,
423 such as the TLE6220, TLE6230 and TLE6240. This provides a
424 sysfs interface, with each line presented as a kind of GPIO
425 exposing both switch control and diagnostic feedback.
428 # Add new SPI protocol masters in alphabetical order above this line
433 # (slave support would go here)