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#
8menuconfig SPI
9	bool "SPI support"
10	depends on HAS_IOMEM
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
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.
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
29if SPI
30
31config SPI_DEBUG
32	boolean "Debug support for SPI drivers"
33	depends on DEBUG_KERNEL
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
52if SPI_MASTER
53
54comment "SPI Master Controller Drivers"
55
56config SPI_ALTERA
57	tristate "Altera SPI Controller"
58	select SPI_BITBANG
59	help
60	  This is the driver for the Altera SPI Controller.
61
62config SPI_ATH79
63	tristate "Atheros AR71XX/AR724X/AR913X SPI controller driver"
64	depends on ATH79 && GENERIC_GPIO
65	select SPI_BITBANG
66	help
67	  This enables support for the SPI controller present on the
68	  Atheros AR71XX/AR724X/AR913X SoCs.
69
70config SPI_ATMEL
71	tristate "Atmel SPI Controller"
72	depends on (ARCH_AT91 || AVR32)
73	help
74	  This selects a driver for the Atmel SPI Controller, present on
75	  many AT32 (AVR32) and AT91 (ARM) chips.
76
77config SPI_BFIN5XX
78	tristate "SPI controller driver for ADI Blackfin5xx"
79	depends on BLACKFIN
80	help
81	  This is the SPI controller master driver for Blackfin 5xx processor.
82
83config SPI_BFIN_SPORT
84	tristate "SPI bus via Blackfin SPORT"
85	depends on BLACKFIN
86	help
87	  Enable support for a SPI bus via the Blackfin SPORT peripheral.
88
89config SPI_AU1550
90	tristate "Au1550/Au1200/Au1300 SPI Controller"
91	depends on MIPS_ALCHEMY && EXPERIMENTAL
92	select SPI_BITBANG
93	help
94	  If you say yes to this option, support will be included for the
95	  PSC SPI controller found on Au1550, Au1200 and Au1300 series.
96
97config SPI_BCM63XX
98	tristate "Broadcom BCM63xx SPI controller"
99	depends on BCM63XX
100	help
101          Enable support for the SPI controller on the Broadcom BCM63xx SoCs.
102
103config SPI_BITBANG
104	tristate "Utilities for Bitbanging SPI masters"
105	help
106	  With a few GPIO pins, your system can bitbang the SPI protocol.
107	  Select this to get SPI support through I/O pins (GPIO, parallel
108	  port, etc).  Or, some systems' SPI master controller drivers use
109	  this code to manage the per-word or per-transfer accesses to the
110	  hardware shift registers.
111
112	  This is library code, and is automatically selected by drivers that
113	  need it.  You only need to select this explicitly to support driver
114	  modules that aren't part of this kernel tree.
115
116config SPI_BUTTERFLY
117	tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
118	depends on PARPORT
119	select SPI_BITBANG
120	help
121	  This uses a custom parallel port cable to connect to an AVR
122	  Butterfly <http://www.atmel.com/products/avr/butterfly>, an
123	  inexpensive battery powered microcontroller evaluation board.
124	  This same cable can be used to flash new firmware.
125
126config SPI_COLDFIRE_QSPI
127	tristate "Freescale Coldfire QSPI controller"
128	depends on (M520x || M523x || M5249 || M527x || M528x || M532x)
129	help
130	  This enables support for the Coldfire QSPI controller in master
131	  mode.
132
133config SPI_DAVINCI
134	tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
135	depends on ARCH_DAVINCI
136	select SPI_BITBANG
137	help
138	  SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.
139
140config SPI_EP93XX
141	tristate "Cirrus Logic EP93xx SPI controller"
142	depends on ARCH_EP93XX
143	help
144	  This enables using the Cirrus EP93xx SPI controller in master
145	  mode.
146
147config SPI_GPIO
148	tristate "GPIO-based bitbanging SPI Master"
149	depends on GENERIC_GPIO
150	select SPI_BITBANG
151	help
152	  This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
153	  interface to manage MOSI, MISO, SCK, and chipselect signals.  SPI
154	  slaves connected to a bus using this driver are configured as usual,
155	  except that the spi_board_info.controller_data holds the GPIO number
156	  for the chipselect used by this controller driver.
157
158	  Note that this driver often won't achieve even 1 Mbit/sec speeds,
159	  making it unusually slow for SPI.  If your platform can inline
160	  GPIO operations, you should be able to leverage that for better
161	  speed with a custom version of this driver; see the source code.
162
163config SPI_IMX
164	tristate "Freescale i.MX SPI controllers"
165	depends on ARCH_MXC
166	select SPI_BITBANG
167	default m if IMX_HAVE_PLATFORM_SPI_IMX
168	help
169	  This enables using the Freescale i.MX SPI controllers in master
170	  mode.
171
172config SPI_LM70_LLP
173	tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
174	depends on PARPORT && EXPERIMENTAL
175	select SPI_BITBANG
176	help
177	  This driver supports the NS LM70 LLP Evaluation Board,
178	  which interfaces to an LM70 temperature sensor using
179	  a parallel port.
180
181config SPI_MPC52xx
182	tristate "Freescale MPC52xx SPI (non-PSC) controller support"
183	depends on PPC_MPC52xx
184	help
185	  This drivers supports the MPC52xx SPI controller in master SPI
186	  mode.
187
188config SPI_MPC52xx_PSC
189	tristate "Freescale MPC52xx PSC SPI controller"
190	depends on PPC_MPC52xx && EXPERIMENTAL
191	help
192	  This enables using the Freescale MPC52xx Programmable Serial
193	  Controller in master SPI mode.
194
195config SPI_MPC512x_PSC
196	tristate "Freescale MPC512x PSC SPI controller"
197	depends on PPC_MPC512x
198	help
199	  This enables using the Freescale MPC5121 Programmable Serial
200	  Controller in SPI master mode.
201
202config SPI_FSL_LIB
203	tristate
204	depends on FSL_SOC
205
206config SPI_FSL_SPI
207	bool "Freescale SPI controller"
208	depends on FSL_SOC
209	select SPI_FSL_LIB
210	help
211	  This enables using the Freescale SPI controllers in master mode.
212	  MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
213	  MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
214
215config SPI_FSL_ESPI
216	bool "Freescale eSPI controller"
217	depends on FSL_SOC
218	select SPI_FSL_LIB
219	help
220	  This enables using the Freescale eSPI controllers in master mode.
221	  From MPC8536, 85xx platform uses the controller, and all P10xx,
222	  P20xx, P30xx,P40xx, P50xx uses this controller.
223
224config SPI_OC_TINY
225	tristate "OpenCores tiny SPI"
226	depends on GENERIC_GPIO
227	select SPI_BITBANG
228	help
229	  This is the driver for OpenCores tiny SPI master controller.
230
231config SPI_OMAP_UWIRE
232	tristate "OMAP1 MicroWire"
233	depends on ARCH_OMAP1
234	select SPI_BITBANG
235	help
236	  This hooks up to the MicroWire controller on OMAP1 chips.
237
238config SPI_OMAP24XX
239	tristate "McSPI driver for OMAP"
240	depends on ARCH_OMAP2PLUS
241	help
242	  SPI master controller for OMAP24XX and later Multichannel SPI
243	  (McSPI) modules.
244
245config SPI_OMAP_100K
246	tristate "OMAP SPI 100K"
247	depends on ARCH_OMAP850 || ARCH_OMAP730
248	help
249	  OMAP SPI 100K master controller for omap7xx boards.
250
251config SPI_ORION
252	tristate "Orion SPI master (EXPERIMENTAL)"
253	depends on PLAT_ORION && EXPERIMENTAL
254	help
255	  This enables using the SPI master controller on the Orion chips.
256
257config SPI_PL022
258	tristate "ARM AMBA PL022 SSP controller"
259	depends on ARM_AMBA
260	default y if MACH_U300
261	default y if ARCH_REALVIEW
262	default y if INTEGRATOR_IMPD1
263	default y if ARCH_VERSATILE
264	help
265	  This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
266	  controller. If you have an embedded system with an AMBA(R)
267	  bus and a PL022 controller, say Y or M here.
268
269config SPI_PPC4xx
270	tristate "PPC4xx SPI Controller"
271	depends on PPC32 && 4xx
272	select SPI_BITBANG
273	help
274	  This selects a driver for the PPC4xx SPI Controller.
275
276config SPI_PXA2XX
277	tristate "PXA2xx SSP SPI master"
278	depends on (ARCH_PXA || (X86_32 && PCI)) && EXPERIMENTAL
279	select PXA_SSP if ARCH_PXA
280	help
281	  This enables using a PXA2xx or Sodaville SSP port as a SPI master
282	  controller. The driver can be configured to use any SSP port and
283	  additional documentation can be found a Documentation/spi/pxa2xx.
284
285config SPI_PXA2XX_PCI
286	def_bool SPI_PXA2XX && X86_32 && PCI
287
288config SPI_RSPI
289	tristate "Renesas RSPI controller"
290	depends on SUPERH
291	help
292	  SPI driver for Renesas RSPI blocks.
293
294config SPI_S3C24XX
295	tristate "Samsung S3C24XX series SPI"
296	depends on ARCH_S3C24XX && EXPERIMENTAL
297	select SPI_BITBANG
298	help
299	  SPI driver for Samsung S3C24XX series ARM SoCs
300
301config SPI_S3C24XX_FIQ
302	bool "S3C24XX driver with FIQ pseudo-DMA"
303	depends on SPI_S3C24XX
304	select FIQ
305	help
306	  Enable FIQ support for the S3C24XX SPI driver to provide pseudo
307	  DMA by using the fast-interrupt request framework, This allows
308	  the driver to get DMA-like performance when there are either
309	  no free DMA channels, or when doing transfers that required both
310	  TX and RX data paths.
311
312config SPI_S3C64XX
313	tristate "Samsung S3C64XX series type SPI"
314	depends on (ARCH_S3C64XX || ARCH_S5P64X0 || ARCH_EXYNOS)
315	select S3C64XX_DMA if ARCH_S3C64XX
316	help
317	  SPI driver for Samsung S3C64XX and newer SoCs.
318
319config SPI_SH_MSIOF
320	tristate "SuperH MSIOF SPI controller"
321	depends on SUPERH && HAVE_CLK
322	select SPI_BITBANG
323	help
324	  SPI driver for SuperH MSIOF blocks.
325
326config SPI_SH
327	tristate "SuperH SPI controller"
328	depends on SUPERH
329	help
330	  SPI driver for SuperH SPI blocks.
331
332config SPI_SH_SCI
333	tristate "SuperH SCI SPI controller"
334	depends on SUPERH
335	select SPI_BITBANG
336	help
337	  SPI driver for SuperH SCI blocks.
338
339config SPI_SH_HSPI
340	tristate "SuperH HSPI controller"
341	depends on ARCH_SHMOBILE
342	help
343	  SPI driver for SuperH HSPI blocks.
344
345config SPI_SIRF
346	tristate "CSR SiRFprimaII SPI controller"
347	depends on ARCH_PRIMA2
348	select SPI_BITBANG
349	help
350	  SPI driver for CSR SiRFprimaII SoCs
351
352config SPI_STMP3XXX
353	tristate "Freescale STMP37xx/378x SPI/SSP controller"
354	depends on ARCH_STMP3XXX
355	help
356	  SPI driver for Freescale STMP37xx/378x SoC SSP interface
357
358config SPI_TEGRA
359	tristate "Nvidia Tegra SPI controller"
360	depends on ARCH_TEGRA && TEGRA_SYSTEM_DMA
361	help
362	  SPI driver for NVidia Tegra SoCs
363
364config SPI_TI_SSP
365	tristate "TI Sequencer Serial Port - SPI Support"
366	depends on MFD_TI_SSP
367	help
368	  This selects an SPI master implementation using a TI sequencer
369	  serial port.
370
371config SPI_TOPCLIFF_PCH
372	tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) SPI"
373	depends on PCI
374	help
375	  SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
376	  used in some x86 embedded processors.
377
378	  This driver also supports the ML7213/ML7223/ML7831, a companion chip
379	  for the Atom E6xx series and compatible with the Intel EG20T PCH.
380
381config SPI_TXX9
382	tristate "Toshiba TXx9 SPI controller"
383	depends on GENERIC_GPIO && CPU_TX49XX
384	help
385	  SPI driver for Toshiba TXx9 MIPS SoCs
386
387config SPI_XILINX
388	tristate "Xilinx SPI controller common module"
389	depends on HAS_IOMEM && EXPERIMENTAL
390	select SPI_BITBANG
391	help
392	  This exposes the SPI controller IP from the Xilinx EDK.
393
394	  See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
395	  Product Specification document (DS464) for hardware details.
396
397	  Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
398
399config SPI_NUC900
400	tristate "Nuvoton NUC900 series SPI"
401	depends on ARCH_W90X900 && EXPERIMENTAL
402	select SPI_BITBANG
403	help
404	  SPI driver for Nuvoton NUC900 series ARM SoCs
405
406#
407# Add new SPI master controllers in alphabetical order above this line
408#
409
410config SPI_DESIGNWARE
411	tristate "DesignWare SPI controller core support"
412	help
413	  general driver for SPI controller core from DesignWare
414
415config SPI_DW_PCI
416	tristate "PCI interface driver for DW SPI core"
417	depends on SPI_DESIGNWARE && PCI
418
419config SPI_DW_MID_DMA
420	bool "DMA support for DW SPI controller on Intel Moorestown platform"
421	depends on SPI_DW_PCI && INTEL_MID_DMAC
422
423config SPI_DW_MMIO
424	tristate "Memory-mapped io interface driver for DW SPI core"
425	depends on SPI_DESIGNWARE && HAVE_CLK
426
427#
428# There are lots of SPI device types, with sensors and memory
429# being probably the most widely used ones.
430#
431comment "SPI Protocol Masters"
432
433config SPI_SPIDEV
434	tristate "User mode SPI device driver support"
435	depends on EXPERIMENTAL
436	help
437	  This supports user mode SPI protocol drivers.
438
439	  Note that this application programming interface is EXPERIMENTAL
440	  and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
441
442config SPI_TLE62X0
443	tristate "Infineon TLE62X0 (for power switching)"
444	depends on SYSFS
445	help
446	  SPI driver for Infineon TLE62X0 series line driver chips,
447	  such as the TLE6220, TLE6230 and TLE6240.  This provides a
448	  sysfs interface, with each line presented as a kind of GPIO
449	  exposing both switch control and diagnostic feedback.
450
451#
452# Add new SPI protocol masters in alphabetical order above this line
453#
454
455endif # SPI_MASTER
456
457# (slave support would go here)
458
459endif # SPI
460