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.
147 tristate "Freescale i.MX SPI controllers"
150 default m if IMX_HAVE_PLATFORM_SPI_IMX
152 This enables using the Freescale i.MX SPI controllers in master
156 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
157 depends on PARPORT && EXPERIMENTAL
160 This driver supports the NS LM70 LLP Evaluation Board,
161 which interfaces to an LM70 temperature sensor using
165 tristate "Freescale MPC52xx SPI (non-PSC) controller support"
166 depends on PPC_MPC52xx && SPI
169 This drivers supports the MPC52xx SPI controller in master SPI
172 config SPI_MPC52xx_PSC
173 tristate "Freescale MPC52xx PSC SPI controller"
174 depends on PPC_MPC52xx && EXPERIMENTAL
176 This enables using the Freescale MPC52xx Programmable Serial
177 Controller in master SPI mode.
179 config SPI_MPC512x_PSC
180 tristate "Freescale MPC512x PSC SPI controller"
181 depends on SPI_MASTER && PPC_MPC512x
183 This enables using the Freescale MPC5121 Programmable Serial
184 Controller in SPI master mode.
187 tristate "Freescale MPC8xxx SPI controller"
190 This enables using the Freescale MPC8xxx SPI controllers in master
193 config SPI_OMAP_UWIRE
194 tristate "OMAP1 MicroWire"
195 depends on ARCH_OMAP1
198 This hooks up to the MicroWire controller on OMAP1 chips.
201 tristate "McSPI driver for OMAP"
202 depends on ARCH_OMAP2PLUS
204 SPI master controller for OMAP24XX and later Multichannel SPI
208 tristate "OMAP SPI 100K"
209 depends on SPI_MASTER && (ARCH_OMAP850 || ARCH_OMAP730)
211 OMAP SPI 100K master controller for omap7xx boards.
214 tristate "Orion SPI master (EXPERIMENTAL)"
215 depends on PLAT_ORION && EXPERIMENTAL
217 This enables using the SPI master controller on the Orion chips.
220 tristate "ARM AMBA PL022 SSP controller (EXPERIMENTAL)"
221 depends on ARM_AMBA && EXPERIMENTAL
222 default y if MACH_U300
223 default y if ARCH_REALVIEW
224 default y if INTEGRATOR_IMPD1
225 default y if ARCH_VERSATILE
227 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
228 controller. If you have an embedded system with an AMBA(R)
229 bus and a PL022 controller, say Y or M here.
232 tristate "PPC4xx SPI Controller"
233 depends on PPC32 && 4xx && SPI_MASTER
236 This selects a driver for the PPC4xx SPI Controller.
239 tristate "PXA2xx SSP SPI master"
240 depends on ARCH_PXA && EXPERIMENTAL
243 This enables using a PXA2xx SSP port as a SPI master controller.
244 The driver can be configured to use any SSP port and additional
245 documentation can be found a Documentation/spi/pxa2xx.
248 tristate "Samsung S3C24XX series SPI"
249 depends on ARCH_S3C2410 && EXPERIMENTAL
252 SPI driver for Samsung S3C24XX series ARM SoCs
254 config SPI_S3C24XX_FIQ
255 bool "S3C24XX driver with FIQ pseudo-DMA"
256 depends on SPI_S3C24XX
259 Enable FIQ support for the S3C24XX SPI driver to provide pseudo
260 DMA by using the fast-interrupt request framework, This allows
261 the driver to get DMA-like performance when there are either
262 no free DMA channels, or when doing transfers that required both
263 TX and RX data paths.
265 config SPI_S3C24XX_GPIO
266 tristate "Samsung S3C24XX series SPI by GPIO"
267 depends on ARCH_S3C2410 && EXPERIMENTAL
270 SPI driver for Samsung S3C24XX series ARM SoCs using
271 GPIO lines to provide the SPI bus. This can be used where
272 the inbuilt hardware cannot provide the transfer mode, or
273 where the board is using non hardware connected pins.
276 tristate "Samsung S3C64XX series type SPI"
277 depends on ARCH_S3C64XX && EXPERIMENTAL
280 SPI driver for Samsung S3C64XX and newer SoCs.
283 tristate "SuperH MSIOF SPI controller"
284 depends on SUPERH && HAVE_CLK
287 SPI driver for SuperH MSIOF blocks.
290 tristate "SuperH SCI SPI controller"
294 SPI driver for SuperH SCI blocks.
297 tristate "Freescale STMP37xx/378x SPI/SSP controller"
298 depends on ARCH_STMP3XXX && SPI_MASTER
300 SPI driver for Freescale STMP37xx/378x SoC SSP interface
303 tristate "Toshiba TXx9 SPI controller"
304 depends on GENERIC_GPIO && CPU_TX49XX
306 SPI driver for Toshiba TXx9 MIPS SoCs
309 tristate "Xilinx SPI controller common module"
310 depends on HAS_IOMEM && EXPERIMENTAL
312 select SPI_XILINX_OF if (XILINX_VIRTEX || MICROBLAZE)
314 This exposes the SPI controller IP from the Xilinx EDK.
316 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
317 Product Specification document (DS464) for hardware details.
319 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
322 tristate "Xilinx SPI controller OF device"
323 depends on SPI_XILINX && (XILINX_VIRTEX || MICROBLAZE)
325 This is the OF driver for the SPI controller IP from the Xilinx EDK.
327 config SPI_XILINX_PLTFM
328 tristate "Xilinx SPI controller platform device"
329 depends on SPI_XILINX
331 This is the platform driver for the SPI controller IP
335 tristate "Nuvoton NUC900 series SPI"
336 depends on ARCH_W90X900 && EXPERIMENTAL
339 SPI driver for Nuvoton NUC900 series ARM SoCs
342 # Add new SPI master controllers in alphabetical order above this line
345 config SPI_DESIGNWARE
346 tristate "DesignWare SPI controller core support"
347 depends on SPI_MASTER
349 general driver for SPI controller core from DesignWare
352 tristate "PCI interface driver for DW SPI core"
353 depends on SPI_DESIGNWARE && PCI
356 tristate "Memory-mapped io interface driver for DW SPI core"
357 depends on SPI_DESIGNWARE && HAVE_CLK
360 # There are lots of SPI device types, with sensors and memory
361 # being probably the most widely used ones.
363 comment "SPI Protocol Masters"
366 tristate "User mode SPI device driver support"
367 depends on EXPERIMENTAL
369 This supports user mode SPI protocol drivers.
371 Note that this application programming interface is EXPERIMENTAL
372 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
375 tristate "Infineon TLE62X0 (for power switching)"
378 SPI driver for Infineon TLE62X0 series line driver chips,
379 such as the TLE6220, TLE6230 and TLE6240. This provides a
380 sysfs interface, with each line presented as a kind of GPIO
381 exposing both switch control and diagnostic feedback.
384 # Add new SPI protocol masters in alphabetical order above this line
389 # (slave support would go here)