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.
104 tristate "GPIO-based bitbanging SPI Master"
105 depends on GENERIC_GPIO
108 This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
109 interface to manage MOSI, MISO, SCK, and chipselect signals. SPI
110 slaves connected to a bus using this driver are configured as usual,
111 except that the spi_board_info.controller_data holds the GPIO number
112 for the chipselect used by this controller driver.
114 Note that this driver often won't achieve even 1 Mbit/sec speeds,
115 making it unusually slow for SPI. If your platform can inline
116 GPIO operations, you should be able to leverage that for better
117 speed with a custom version of this driver; see the source code.
120 tristate "Freescale i.MX SPI controllers"
124 This enables using the Freescale i.MX SPI controllers in master
128 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
129 depends on PARPORT && EXPERIMENTAL
132 This driver supports the NS LM70 LLP Evaluation Board,
133 which interfaces to an LM70 temperature sensor using
137 tristate "Freescale MPC52xx SPI (non-PSC) controller support"
138 depends on PPC_MPC52xx && SPI
141 This drivers supports the MPC52xx SPI controller in master SPI
144 config SPI_MPC52xx_PSC
145 tristate "Freescale MPC52xx PSC SPI controller"
146 depends on PPC_MPC52xx && EXPERIMENTAL
148 This enables using the Freescale MPC52xx Programmable Serial
149 Controller in master SPI mode.
152 tristate "Freescale MPC8xxx SPI controller"
155 This enables using the Freescale MPC8xxx SPI controllers in master
158 This driver uses a simple set of shift registers for data (opposed
159 to the CPM based descriptor model).
161 config SPI_OMAP_UWIRE
162 tristate "OMAP1 MicroWire"
163 depends on ARCH_OMAP1
166 This hooks up to the MicroWire controller on OMAP1 chips.
169 tristate "McSPI driver for OMAP24xx/OMAP34xx"
170 depends on ARCH_OMAP24XX || ARCH_OMAP34XX
172 SPI master controller for OMAP24xx/OMAP34xx Multichannel SPI
176 tristate "Orion SPI master (EXPERIMENTAL)"
177 depends on PLAT_ORION && EXPERIMENTAL
179 This enables using the SPI master controller on the Orion chips.
182 tristate "ARM AMBA PL022 SSP controller (EXPERIMENTAL)"
183 depends on ARM_AMBA && EXPERIMENTAL
184 default y if MACH_U300
185 default y if ARCH_REALVIEW
186 default y if INTEGRATOR_IMPD1
187 default y if ARCH_VERSATILE
189 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
190 controller. If you have an embedded system with an AMBA(R)
191 bus and a PL022 controller, say Y or M here.
194 tristate "PPC4xx SPI Controller"
195 depends on PPC32 && 4xx && SPI_MASTER
198 This selects a driver for the PPC4xx SPI Controller.
201 tristate "PXA2xx SSP SPI master"
202 depends on ARCH_PXA && EXPERIMENTAL
205 This enables using a PXA2xx SSP port as a SPI master controller.
206 The driver can be configured to use any SSP port and additional
207 documentation can be found a Documentation/spi/pxa2xx.
210 tristate "Samsung S3C24XX series SPI"
211 depends on ARCH_S3C2410 && EXPERIMENTAL
214 SPI driver for Samsung S3C24XX series ARM SoCs
216 config SPI_S3C24XX_GPIO
217 tristate "Samsung S3C24XX series SPI by GPIO"
218 depends on ARCH_S3C2410 && EXPERIMENTAL
221 SPI driver for Samsung S3C24XX series ARM SoCs using
222 GPIO lines to provide the SPI bus. This can be used where
223 the inbuilt hardware cannot provide the transfer mode, or
224 where the board is using non hardware connected pins.
227 tristate "SuperH MSIOF SPI controller"
228 depends on SUPERH && HAVE_CLK
231 SPI driver for SuperH MSIOF blocks.
234 tristate "SuperH SCI SPI controller"
238 SPI driver for SuperH SCI blocks.
241 tristate "Freescale STMP37xx/378x SPI/SSP controller"
242 depends on ARCH_STMP3XXX && SPI_MASTER
244 SPI driver for Freescale STMP37xx/378x SoC SSP interface
247 tristate "Toshiba TXx9 SPI controller"
248 depends on GENERIC_GPIO && CPU_TX49XX
250 SPI driver for Toshiba TXx9 MIPS SoCs
253 tristate "Xilinx SPI controller common module"
254 depends on HAS_IOMEM && EXPERIMENTAL
256 select SPI_XILINX_OF if (XILINX_VIRTEX || MICROBLAZE)
258 This exposes the SPI controller IP from the Xilinx EDK.
260 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
261 Product Specification document (DS464) for hardware details.
263 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
266 tristate "Xilinx SPI controller OF device"
267 depends on SPI_XILINX && (XILINX_VIRTEX || MICROBLAZE)
269 This is the OF driver for the SPI controller IP from the Xilinx EDK.
271 config SPI_XILINX_PLTFM
272 tristate "Xilinx SPI controller platform device"
273 depends on SPI_XILINX
275 This is the platform driver for the SPI controller IP
279 # Add new SPI master controllers in alphabetical order above this line
283 # There are lots of SPI device types, with sensors and memory
284 # being probably the most widely used ones.
286 comment "SPI Protocol Masters"
289 tristate "User mode SPI device driver support"
290 depends on EXPERIMENTAL
292 This supports user mode SPI protocol drivers.
294 Note that this application programming interface is EXPERIMENTAL
295 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
298 tristate "Infineon TLE62X0 (for power switching)"
301 SPI driver for Infineon TLE62X0 series line driver chips,
302 such as the TLE6220, TLE6230 and TLE6240. This provides a
303 sysfs interface, with each line presented as a kind of GPIO
304 exposing both switch control and diagnostic feedback.
307 # Add new SPI protocol masters in alphabetical order above this line
312 # (slave support would go here)