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 "GPIO-based bitbanging SPI Master"
122 depends on GENERIC_GPIO
125 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
126 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI
127 slaves connected to a bus using this driver are configured as usual,
128 except that the spi_board_info.controller_data holds the GPIO number
129 for the chipselect used by this controller driver.
131 Note that this driver often won't achieve even 1 Mbit/sec speeds,
132 making it unusually slow for SPI. If your platform can inline
133 GPIO operations, you should be able to leverage that for better
134 speed with a custom version of this driver; see the source code.
137 tristate "Freescale i.MX SPI controllers"
141 This enables using the Freescale i.MX SPI controllers in master
145 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
146 depends on PARPORT && EXPERIMENTAL
149 This driver supports the NS LM70 LLP Evaluation Board,
150 which interfaces to an LM70 temperature sensor using
154 tristate "Freescale MPC52xx SPI (non-PSC) controller support"
155 depends on PPC_MPC52xx && SPI
158 This drivers supports the MPC52xx SPI controller in master SPI
161 config SPI_MPC52xx_PSC
162 tristate "Freescale MPC52xx PSC SPI controller"
163 depends on PPC_MPC52xx && EXPERIMENTAL
165 This enables using the Freescale MPC52xx Programmable Serial
166 Controller in master SPI mode.
169 tristate "Freescale MPC8xxx SPI controller"
172 This enables using the Freescale MPC8xxx SPI controllers in master
175 config SPI_OMAP_UWIRE
176 tristate "OMAP1 MicroWire"
177 depends on ARCH_OMAP1
180 This hooks up to the MicroWire controller on OMAP1 chips.
183 tristate "McSPI driver for OMAP24xx/OMAP34xx"
184 depends on ARCH_OMAP2 || ARCH_OMAP3
186 SPI master controller for OMAP24xx/OMAP34xx Multichannel SPI
190 tristate "OMAP SPI 100K"
191 depends on SPI_MASTER && (ARCH_OMAP850 || ARCH_OMAP730)
193 OMAP SPI 100K master controller for omap7xx boards.
196 tristate "Orion SPI master (EXPERIMENTAL)"
197 depends on PLAT_ORION && EXPERIMENTAL
199 This enables using the SPI master controller on the Orion chips.
202 tristate "ARM AMBA PL022 SSP controller (EXPERIMENTAL)"
203 depends on ARM_AMBA && EXPERIMENTAL
204 default y if MACH_U300
205 default y if ARCH_REALVIEW
206 default y if INTEGRATOR_IMPD1
207 default y if ARCH_VERSATILE
209 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
210 controller. If you have an embedded system with an AMBA(R)
211 bus and a PL022 controller, say Y or M here.
214 tristate "PPC4xx SPI Controller"
215 depends on PPC32 && 4xx && SPI_MASTER
218 This selects a driver for the PPC4xx SPI Controller.
221 tristate "PXA2xx SSP SPI master"
222 depends on ARCH_PXA && EXPERIMENTAL
225 This enables using a PXA2xx SSP port as a SPI master controller.
226 The driver can be configured to use any SSP port and additional
227 documentation can be found a Documentation/spi/pxa2xx.
230 tristate "Samsung S3C24XX series SPI"
231 depends on ARCH_S3C2410 && EXPERIMENTAL
234 SPI driver for Samsung S3C24XX series ARM SoCs
236 config SPI_S3C24XX_FIQ
237 bool "S3C24XX driver with FIQ pseudo-DMA"
238 depends on SPI_S3C24XX
241 Enable FIQ support for the S3C24XX SPI driver to provide pseudo
242 DMA by using the fast-interrupt request framework, This allows
243 the driver to get DMA-like performance when there are either
244 no free DMA channels, or when doing transfers that required both
245 TX and RX data paths.
247 config SPI_S3C24XX_GPIO
248 tristate "Samsung S3C24XX series SPI by GPIO"
249 depends on ARCH_S3C2410 && EXPERIMENTAL
252 SPI driver for Samsung S3C24XX series ARM SoCs using
253 GPIO lines to provide the SPI bus. This can be used where
254 the inbuilt hardware cannot provide the transfer mode, or
255 where the board is using non hardware connected pins.
258 tristate "Samsung S3C64XX series type SPI"
259 depends on ARCH_S3C64XX && EXPERIMENTAL
262 SPI driver for Samsung S3C64XX and newer SoCs.
265 tristate "SuperH MSIOF SPI controller"
266 depends on SUPERH && HAVE_CLK
269 SPI driver for SuperH MSIOF blocks.
272 tristate "SuperH SCI SPI controller"
276 SPI driver for SuperH SCI blocks.
279 tristate "Freescale STMP37xx/378x SPI/SSP controller"
280 depends on ARCH_STMP3XXX && SPI_MASTER
282 SPI driver for Freescale STMP37xx/378x SoC SSP interface
285 tristate "Toshiba TXx9 SPI controller"
286 depends on GENERIC_GPIO && CPU_TX49XX
288 SPI driver for Toshiba TXx9 MIPS SoCs
291 tristate "Xilinx SPI controller common module"
292 depends on HAS_IOMEM && EXPERIMENTAL
294 select SPI_XILINX_OF if (XILINX_VIRTEX || MICROBLAZE)
296 This exposes the SPI controller IP from the Xilinx EDK.
298 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
299 Product Specification document (DS464) for hardware details.
301 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
304 tristate "Xilinx SPI controller OF device"
305 depends on SPI_XILINX && (XILINX_VIRTEX || MICROBLAZE)
307 This is the OF driver for the SPI controller IP from the Xilinx EDK.
309 config SPI_XILINX_PLTFM
310 tristate "Xilinx SPI controller platform device"
311 depends on SPI_XILINX
313 This is the platform driver for the SPI controller IP
317 tristate "Nuvoton NUC900 series SPI"
318 depends on ARCH_W90X900 && EXPERIMENTAL
321 SPI driver for Nuvoton NUC900 series ARM SoCs
324 # Add new SPI master controllers in alphabetical order above this line
327 config SPI_DESIGNWARE
328 tristate "DesignWare SPI controller core support"
329 depends on SPI_MASTER
331 general driver for SPI controller core from DesignWare
334 tristate "PCI interface driver for DW SPI core"
335 depends on SPI_DESIGNWARE && PCI
338 tristate "Memory-mapped io interface driver for DW SPI core"
339 depends on SPI_DESIGNWARE && HAVE_CLK
342 # There are lots of SPI device types, with sensors and memory
343 # being probably the most widely used ones.
345 comment "SPI Protocol Masters"
348 tristate "User mode SPI device driver support"
349 depends on EXPERIMENTAL
351 This supports user mode SPI protocol drivers.
353 Note that this application programming interface is EXPERIMENTAL
354 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
357 tristate "Infineon TLE62X0 (for power switching)"
360 SPI driver for Infineon TLE62X0 series line driver chips,
361 such as the TLE6220, TLE6230 and TLE6240. This provides a
362 sysfs interface, with each line presented as a kind of GPIO
363 exposing both switch control and diagnostic feedback.
366 # Add new SPI protocol masters in alphabetical order above this line
371 # (slave support would go here)