spi/mpc8xxx: refactor the common code for SPI/eSPI controller
[deliverable/linux.git] / drivers / spi / Kconfig
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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#
79d8c7a8 8menuconfig SPI
8ae12a0d 9 bool "SPI support"
79d8c7a8 10 depends on HAS_IOMEM
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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
3cb2fccc 18 SPI is widely used by microcontrollers to talk with sensors,
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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
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29if SPI
30
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31config SPI_DEBUG
32 boolean "Debug support for SPI drivers"
79d8c7a8 33 depends on DEBUG_KERNEL
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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
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52if SPI_MASTER
53
8ae12a0d 54comment "SPI Master Controller Drivers"
8ae12a0d 55
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56config SPI_ATMEL
57 tristate "Atmel SPI Controller"
6291fe2a 58 depends on (ARCH_AT91 || AVR32)
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59 help
60 This selects a driver for the Atmel SPI Controller, present on
61 many AT32 (AVR32) and AT91 (ARM) chips.
62
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63config SPI_BFIN
64 tristate "SPI controller driver for ADI Blackfin5xx"
6291fe2a 65 depends on BLACKFIN
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66 help
67 This is the SPI controller master driver for Blackfin 5xx processor.
68
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69config SPI_AU1550
70 tristate "Au1550/Au12x0 SPI Controller"
6291fe2a 71 depends on (SOC_AU1550 || SOC_AU1200) && EXPERIMENTAL
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72 select SPI_BITBANG
73 help
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).
76
77 This driver can also be built as a module. If so, the module
78 will be called au1550_spi.
79
9904f22a 80config SPI_BITBANG
d29389de 81 tristate "Utilities for Bitbanging SPI masters"
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82 help
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.
88
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.
8ae12a0d 92
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93config SPI_BUTTERFLY
94 tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
6291fe2a 95 depends on PARPORT
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96 select SPI_BITBANG
97 help
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.
102
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103config SPI_COLDFIRE_QSPI
104 tristate "Freescale Coldfire QSPI controller"
105 depends on (M520x || M523x || M5249 || M527x || M528x || M532x)
106 help
107 This enables support for the Coldfire QSPI controller in master
108 mode.
109
110 This driver can also be built as a module. If so, the module
111 will be called coldfire_qspi.
112
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113config SPI_DAVINCI
114 tristate "SPI controller driver for DaVinci/DA8xx SoC's"
115 depends on SPI_MASTER && ARCH_DAVINCI
116 select SPI_BITBANG
117 help
118 SPI master controller for DaVinci and DA8xx SPI modules.
119
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120config SPI_EP93XX
121 tristate "Cirrus Logic EP93xx SPI controller"
122 depends on ARCH_EP93XX
123 help
124 This enables using the Cirrus EP93xx SPI controller in master
125 mode.
126
127 To compile this driver as a module, choose M here. The module will be
128 called ep93xx_spi.
129
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130config SPI_GPIO
131 tristate "GPIO-based bitbanging SPI Master"
132 depends on GENERIC_GPIO
133 select SPI_BITBANG
134 help
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.
140
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.
145
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146config SPI_IMX
147 tristate "Freescale i.MX SPI controllers"
148 depends on ARCH_MXC
149 select SPI_BITBANG
150 help
151 This enables using the Freescale i.MX SPI controllers in master
152 mode.
153
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154config SPI_LM70_LLP
155 tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
6291fe2a 156 depends on PARPORT && EXPERIMENTAL
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157 select SPI_BITBANG
158 help
159 This driver supports the NS LM70 LLP Evaluation Board,
160 which interfaces to an LM70 temperature sensor using
161 a parallel port.
162
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163config SPI_MPC52xx
164 tristate "Freescale MPC52xx SPI (non-PSC) controller support"
165 depends on PPC_MPC52xx && SPI
166 select SPI_MASTER_OF
167 help
168 This drivers supports the MPC52xx SPI controller in master SPI
169 mode.
170
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171config SPI_MPC52xx_PSC
172 tristate "Freescale MPC52xx PSC SPI controller"
6291fe2a 173 depends on PPC_MPC52xx && EXPERIMENTAL
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174 help
175 This enables using the Freescale MPC52xx Programmable Serial
176 Controller in master SPI mode.
177
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178config SPI_MPC512x_PSC
179 tristate "Freescale MPC512x PSC SPI controller"
180 depends on SPI_MASTER && PPC_MPC512x
181 help
182 This enables using the Freescale MPC5121 Programmable Serial
183 Controller in SPI master mode.
184
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185config SPI_FSL_LIB
186 tristate
187 depends on FSL_SOC
188
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189config SPI_FSL_SPI
190 tristate "Freescale SPI controller"
9e04b333 191 depends on FSL_SOC
b36ece83 192 select SPI_FSL_LIB
ccf06998 193 help
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194 This enables using the Freescale SPI controllers in master mode.
195 MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
196 MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
ccf06998 197
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198config SPI_OMAP_UWIRE
199 tristate "OMAP1 MicroWire"
6291fe2a 200 depends on ARCH_OMAP1
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201 select SPI_BITBANG
202 help
203 This hooks up to the MicroWire controller on OMAP1 chips.
204
ccdc7bf9 205config SPI_OMAP24XX
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206 tristate "McSPI driver for OMAP"
207 depends on ARCH_OMAP2PLUS
ccdc7bf9 208 help
8ebeb545 209 SPI master controller for OMAP24XX and later Multichannel SPI
ccdc7bf9 210 (McSPI) modules.
69c202af 211
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212config SPI_OMAP_100K
213 tristate "OMAP SPI 100K"
214 depends on SPI_MASTER && (ARCH_OMAP850 || ARCH_OMAP730)
215 help
216 OMAP SPI 100K master controller for omap7xx boards.
217
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218config SPI_ORION
219 tristate "Orion SPI master (EXPERIMENTAL)"
220 depends on PLAT_ORION && EXPERIMENTAL
221 help
222 This enables using the SPI master controller on the Orion chips.
223
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224config SPI_PL022
225 tristate "ARM AMBA PL022 SSP controller (EXPERIMENTAL)"
226 depends on ARM_AMBA && EXPERIMENTAL
227 default y if MACH_U300
f33b29ee 228 default y if ARCH_REALVIEW
229 default y if INTEGRATOR_IMPD1
230 default y if ARCH_VERSATILE
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231 help
232 This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
233 controller. If you have an embedded system with an AMBA(R)
234 bus and a PL022 controller, say Y or M here.
235
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236config SPI_PPC4xx
237 tristate "PPC4xx SPI Controller"
238 depends on PPC32 && 4xx && SPI_MASTER
239 select SPI_BITBANG
240 help
241 This selects a driver for the PPC4xx SPI Controller.
242
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243config SPI_PXA2XX
244 tristate "PXA2xx SSP SPI master"
6291fe2a 245 depends on ARCH_PXA && EXPERIMENTAL
2f1a74e5 246 select PXA_SSP
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247 help
248 This enables using a PXA2xx SSP port as a SPI master controller.
249 The driver can be configured to use any SSP port and additional
250 documentation can be found a Documentation/spi/pxa2xx.
251
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252config SPI_S3C24XX
253 tristate "Samsung S3C24XX series SPI"
6291fe2a 254 depends on ARCH_S3C2410 && EXPERIMENTAL
da0abc27 255 select SPI_BITBANG
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256 help
257 SPI driver for Samsung S3C24XX series ARM SoCs
258
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259config SPI_S3C24XX_FIQ
260 bool "S3C24XX driver with FIQ pseudo-DMA"
261 depends on SPI_S3C24XX
262 select FIQ
263 help
264 Enable FIQ support for the S3C24XX SPI driver to provide pseudo
265 DMA by using the fast-interrupt request framework, This allows
266 the driver to get DMA-like performance when there are either
267 no free DMA channels, or when doing transfers that required both
268 TX and RX data paths.
269
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270config SPI_S3C24XX_GPIO
271 tristate "Samsung S3C24XX series SPI by GPIO"
6291fe2a 272 depends on ARCH_S3C2410 && EXPERIMENTAL
da0abc27 273 select SPI_BITBANG
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274 help
275 SPI driver for Samsung S3C24XX series ARM SoCs using
276 GPIO lines to provide the SPI bus. This can be used where
277 the inbuilt hardware cannot provide the transfer mode, or
278 where the board is using non hardware connected pins.
ae918c02 279
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280config SPI_S3C64XX
281 tristate "Samsung S3C64XX series type SPI"
282 depends on ARCH_S3C64XX && EXPERIMENTAL
283 select S3C64XX_DMA
284 help
285 SPI driver for Samsung S3C64XX and newer SoCs.
286
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287config SPI_SH_MSIOF
288 tristate "SuperH MSIOF SPI controller"
289 depends on SUPERH && HAVE_CLK
290 select SPI_BITBANG
291 help
292 SPI driver for SuperH MSIOF blocks.
293
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294config SPI_SH_SCI
295 tristate "SuperH SCI SPI controller"
6291fe2a 296 depends on SUPERH
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297 select SPI_BITBANG
298 help
299 SPI driver for SuperH SCI blocks.
300
0644c486 301config SPI_STMP3XXX
302 tristate "Freescale STMP37xx/378x SPI/SSP controller"
303 depends on ARCH_STMP3XXX && SPI_MASTER
304 help
305 SPI driver for Freescale STMP37xx/378x SoC SSP interface
306
e8b17b5b 307config SPI_TOPCLIFF_PCH
cdbc8f04 308 tristate "Topcliff PCH SPI Controller"
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309 depends on PCI
310 help
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311 SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
312 used in some x86 embedded processors.
e8b17b5b 313
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314config SPI_TXX9
315 tristate "Toshiba TXx9 SPI controller"
6291fe2a 316 depends on GENERIC_GPIO && CPU_TX49XX
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317 help
318 SPI driver for Toshiba TXx9 MIPS SoCs
319
ae918c02 320config SPI_XILINX
c9da2e12 321 tristate "Xilinx SPI controller common module"
86fc5935 322 depends on HAS_IOMEM && EXPERIMENTAL
ae918c02 323 select SPI_BITBANG
d5af91a1 324 select SPI_XILINX_OF if (XILINX_VIRTEX || MICROBLAZE)
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325 help
326 This exposes the SPI controller IP from the Xilinx EDK.
327
328 See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
329 Product Specification document (DS464) for hardware details.
330
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331 Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
332
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333config SPI_XILINX_OF
334 tristate "Xilinx SPI controller OF device"
335 depends on SPI_XILINX && (XILINX_VIRTEX || MICROBLAZE)
336 help
337 This is the OF driver for the SPI controller IP from the Xilinx EDK.
338
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339config SPI_XILINX_PLTFM
340 tristate "Xilinx SPI controller platform device"
341 depends on SPI_XILINX
342 help
343 This is the platform driver for the SPI controller IP
344 from the Xilinx EDK.
345
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346config SPI_NUC900
347 tristate "Nuvoton NUC900 series SPI"
348 depends on ARCH_W90X900 && EXPERIMENTAL
349 select SPI_BITBANG
350 help
351 SPI driver for Nuvoton NUC900 series ARM SoCs
352
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353#
354# Add new SPI master controllers in alphabetical order above this line
355#
356
e24c7452 357config SPI_DESIGNWARE
8ca8d15a 358 tristate "DesignWare SPI controller core support"
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359 depends on SPI_MASTER
360 help
361 general driver for SPI controller core from DesignWare
362
363config SPI_DW_PCI
364 tristate "PCI interface driver for DW SPI core"
365 depends on SPI_DESIGNWARE && PCI
366
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367config SPI_DW_MMIO
368 tristate "Memory-mapped io interface driver for DW SPI core"
212b3c8b 369 depends on SPI_DESIGNWARE && HAVE_CLK
f7b6fd6d 370
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371#
372# There are lots of SPI device types, with sensors and memory
373# being probably the most widely used ones.
374#
375comment "SPI Protocol Masters"
8ae12a0d 376
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377config SPI_SPIDEV
378 tristate "User mode SPI device driver support"
6291fe2a 379 depends on EXPERIMENTAL
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380 help
381 This supports user mode SPI protocol drivers.
382
383 Note that this application programming interface is EXPERIMENTAL
384 and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
385
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386config SPI_TLE62X0
387 tristate "Infineon TLE62X0 (for power switching)"
6291fe2a 388 depends on SYSFS
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389 help
390 SPI driver for Infineon TLE62X0 series line driver chips,
391 such as the TLE6220, TLE6230 and TLE6240. This provides a
392 sysfs interface, with each line presented as a kind of GPIO
393 exposing both switch control and diagnostic feedback.
394
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395#
396# Add new SPI protocol masters in alphabetical order above this line
397#
398
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399endif # SPI_MASTER
400
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401# (slave support would go here)
402
79d8c7a8 403endif # SPI
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