xref: /openbmc/linux/drivers/spi/Kconfig (revision 81d67439)
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_BFIN
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/Au12x0 SPI Controller"
91	depends on (SOC_AU1550 || SOC_AU1200) && EXPERIMENTAL
92	select SPI_BITBANG
93	help
94	  If you say yes to this option, support will be included for the
95	  Au1550 SPI controller (may also work with Au1200,Au1210,Au1250).
96
97config SPI_BITBANG
98	tristate "Utilities for Bitbanging SPI masters"
99	help
100	  With a few GPIO pins, your system can bitbang the SPI protocol.
101	  Select this to get SPI support through I/O pins (GPIO, parallel
102	  port, etc).  Or, some systems' SPI master controller drivers use
103	  this code to manage the per-word or per-transfer accesses to the
104	  hardware shift registers.
105
106	  This is library code, and is automatically selected by drivers that
107	  need it.  You only need to select this explicitly to support driver
108	  modules that aren't part of this kernel tree.
109
110config SPI_BUTTERFLY
111	tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)"
112	depends on PARPORT
113	select SPI_BITBANG
114	help
115	  This uses a custom parallel port cable to connect to an AVR
116	  Butterfly <http://www.atmel.com/products/avr/butterfly>, an
117	  inexpensive battery powered microcontroller evaluation board.
118	  This same cable can be used to flash new firmware.
119
120config SPI_COLDFIRE_QSPI
121	tristate "Freescale Coldfire QSPI controller"
122	depends on (M520x || M523x || M5249 || M527x || M528x || M532x)
123	help
124	  This enables support for the Coldfire QSPI controller in master
125	  mode.
126
127config SPI_DAVINCI
128	tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
129	depends on SPI_MASTER && ARCH_DAVINCI
130	select SPI_BITBANG
131	help
132	  SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.
133
134config SPI_EP93XX
135	tristate "Cirrus Logic EP93xx SPI controller"
136	depends on ARCH_EP93XX
137	help
138	  This enables using the Cirrus EP93xx SPI controller in master
139	  mode.
140
141config SPI_GPIO
142	tristate "GPIO-based bitbanging SPI Master"
143	depends on GENERIC_GPIO
144	select SPI_BITBANG
145	help
146	  This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
147	  interface to manage MOSI, MISO, SCK, and chipselect signals.  SPI
148	  slaves connected to a bus using this driver are configured as usual,
149	  except that the spi_board_info.controller_data holds the GPIO number
150	  for the chipselect used by this controller driver.
151
152	  Note that this driver often won't achieve even 1 Mbit/sec speeds,
153	  making it unusually slow for SPI.  If your platform can inline
154	  GPIO operations, you should be able to leverage that for better
155	  speed with a custom version of this driver; see the source code.
156
157config SPI_IMX
158	tristate "Freescale i.MX SPI controllers"
159	depends on ARCH_MXC
160	select SPI_BITBANG
161	default m if IMX_HAVE_PLATFORM_SPI_IMX
162	help
163	  This enables using the Freescale i.MX SPI controllers in master
164	  mode.
165
166config SPI_LM70_LLP
167	tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
168	depends on PARPORT && EXPERIMENTAL
169	select SPI_BITBANG
170	help
171	  This driver supports the NS LM70 LLP Evaluation Board,
172	  which interfaces to an LM70 temperature sensor using
173	  a parallel port.
174
175config SPI_MPC52xx
176	tristate "Freescale MPC52xx SPI (non-PSC) controller support"
177	depends on PPC_MPC52xx && SPI
178	select SPI_MASTER_OF
179	help
180	  This drivers supports the MPC52xx SPI controller in master SPI
181	  mode.
182
183config SPI_MPC52xx_PSC
184	tristate "Freescale MPC52xx PSC SPI controller"
185	depends on PPC_MPC52xx && EXPERIMENTAL
186	help
187	  This enables using the Freescale MPC52xx Programmable Serial
188	  Controller in master SPI mode.
189
190config SPI_MPC512x_PSC
191	tristate "Freescale MPC512x PSC SPI controller"
192	depends on SPI_MASTER && PPC_MPC512x
193	help
194	  This enables using the Freescale MPC5121 Programmable Serial
195	  Controller in SPI master mode.
196
197config SPI_FSL_LIB
198	tristate
199	depends on FSL_SOC
200
201config SPI_FSL_SPI
202	tristate "Freescale SPI controller"
203	depends on FSL_SOC
204	select SPI_FSL_LIB
205	help
206	  This enables using the Freescale SPI controllers in master mode.
207	  MPC83xx platform uses the controller in cpu mode or CPM/QE mode.
208	  MPC8569 uses the controller in QE mode, MPC8610 in cpu mode.
209
210config SPI_FSL_ESPI
211	tristate "Freescale eSPI controller"
212	depends on FSL_SOC
213	select SPI_FSL_LIB
214	help
215	  This enables using the Freescale eSPI controllers in master mode.
216	  From MPC8536, 85xx platform uses the controller, and all P10xx,
217	  P20xx, P30xx,P40xx, P50xx uses this controller.
218
219config SPI_OC_TINY
220	tristate "OpenCores tiny SPI"
221	depends on GENERIC_GPIO
222	select SPI_BITBANG
223	help
224	  This is the driver for OpenCores tiny SPI master controller.
225
226config SPI_OMAP_UWIRE
227	tristate "OMAP1 MicroWire"
228	depends on ARCH_OMAP1
229	select SPI_BITBANG
230	help
231	  This hooks up to the MicroWire controller on OMAP1 chips.
232
233config SPI_OMAP24XX
234	tristate "McSPI driver for OMAP"
235	depends on ARCH_OMAP2PLUS
236	help
237	  SPI master controller for OMAP24XX and later Multichannel SPI
238	  (McSPI) modules.
239
240config SPI_OMAP_100K
241	tristate "OMAP SPI 100K"
242	depends on SPI_MASTER && (ARCH_OMAP850 || ARCH_OMAP730)
243	help
244	  OMAP SPI 100K master controller for omap7xx boards.
245
246config SPI_ORION
247	tristate "Orion SPI master (EXPERIMENTAL)"
248	depends on PLAT_ORION && EXPERIMENTAL
249	help
250	  This enables using the SPI master controller on the Orion chips.
251
252config SPI_PL022
253	tristate "ARM AMBA PL022 SSP controller"
254	depends on ARM_AMBA
255	default y if MACH_U300
256	default y if ARCH_REALVIEW
257	default y if INTEGRATOR_IMPD1
258	default y if ARCH_VERSATILE
259	help
260	  This selects the ARM(R) AMBA(R) PrimeCell PL022 SSP
261	  controller. If you have an embedded system with an AMBA(R)
262	  bus and a PL022 controller, say Y or M here.
263
264config SPI_PPC4xx
265	tristate "PPC4xx SPI Controller"
266	depends on PPC32 && 4xx && SPI_MASTER
267	select SPI_BITBANG
268	help
269	  This selects a driver for the PPC4xx SPI Controller.
270
271config SPI_PXA2XX
272	tristate "PXA2xx SSP SPI master"
273	depends on (ARCH_PXA || (X86_32 && PCI)) && EXPERIMENTAL
274	select PXA_SSP if ARCH_PXA
275	help
276	  This enables using a PXA2xx or Sodaville SSP port as a SPI master
277	  controller. The driver can be configured to use any SSP port and
278	  additional documentation can be found a Documentation/spi/pxa2xx.
279
280config SPI_PXA2XX_PCI
281	def_bool SPI_PXA2XX && X86_32 && PCI
282
283config SPI_S3C24XX
284	tristate "Samsung S3C24XX series SPI"
285	depends on ARCH_S3C2410 && EXPERIMENTAL
286	select SPI_BITBANG
287	help
288	  SPI driver for Samsung S3C24XX series ARM SoCs
289
290config SPI_S3C24XX_FIQ
291	bool "S3C24XX driver with FIQ pseudo-DMA"
292	depends on SPI_S3C24XX
293	select FIQ
294	help
295	  Enable FIQ support for the S3C24XX SPI driver to provide pseudo
296	  DMA by using the fast-interrupt request framework, This allows
297	  the driver to get DMA-like performance when there are either
298	  no free DMA channels, or when doing transfers that required both
299	  TX and RX data paths.
300
301config SPI_S3C64XX
302	tristate "Samsung S3C64XX series type SPI"
303	depends on (ARCH_S3C64XX || ARCH_S5P64X0)
304	select S3C64XX_DMA if ARCH_S3C64XX
305	help
306	  SPI driver for Samsung S3C64XX and newer SoCs.
307
308config SPI_SH_MSIOF
309	tristate "SuperH MSIOF SPI controller"
310	depends on SUPERH && HAVE_CLK
311	select SPI_BITBANG
312	help
313	  SPI driver for SuperH MSIOF blocks.
314
315config SPI_SH
316	tristate "SuperH SPI controller"
317	depends on SUPERH
318	help
319	  SPI driver for SuperH SPI blocks.
320
321config SPI_SH_SCI
322	tristate "SuperH SCI SPI controller"
323	depends on SUPERH
324	select SPI_BITBANG
325	help
326	  SPI driver for SuperH SCI blocks.
327
328config SPI_STMP3XXX
329	tristate "Freescale STMP37xx/378x SPI/SSP controller"
330	depends on ARCH_STMP3XXX && SPI_MASTER
331	help
332	  SPI driver for Freescale STMP37xx/378x SoC SSP interface
333
334config SPI_TEGRA
335	tristate "Nvidia Tegra SPI controller"
336	depends on ARCH_TEGRA
337	select TEGRA_SYSTEM_DMA
338	help
339	  SPI driver for NVidia Tegra SoCs
340
341config SPI_TI_SSP
342	tristate "TI Sequencer Serial Port - SPI Support"
343	depends on MFD_TI_SSP
344	help
345	  This selects an SPI master implementation using a TI sequencer
346	  serial port.
347
348config SPI_TOPCLIFF_PCH
349	tristate "Intel EG20T PCH/OKI SEMICONDUCTOR ML7213 IOH SPI controller"
350	depends on PCI
351	help
352	  SPI driver for the Topcliff PCH (Platform Controller Hub) SPI bus
353	  used in some x86 embedded processors.
354
355	  This driver also supports the ML7213, a companion chip for the
356	  Atom E6xx series and compatible with the Intel EG20T PCH.
357
358config SPI_TXX9
359	tristate "Toshiba TXx9 SPI controller"
360	depends on GENERIC_GPIO && CPU_TX49XX
361	help
362	  SPI driver for Toshiba TXx9 MIPS SoCs
363
364config SPI_XILINX
365	tristate "Xilinx SPI controller common module"
366	depends on HAS_IOMEM && EXPERIMENTAL
367	select SPI_BITBANG
368	help
369	  This exposes the SPI controller IP from the Xilinx EDK.
370
371	  See the "OPB Serial Peripheral Interface (SPI) (v1.00e)"
372	  Product Specification document (DS464) for hardware details.
373
374	  Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
375
376config SPI_NUC900
377	tristate "Nuvoton NUC900 series SPI"
378	depends on ARCH_W90X900 && EXPERIMENTAL
379	select SPI_BITBANG
380	help
381	  SPI driver for Nuvoton NUC900 series ARM SoCs
382
383#
384# Add new SPI master controllers in alphabetical order above this line
385#
386
387config SPI_DESIGNWARE
388	tristate "DesignWare SPI controller core support"
389	depends on SPI_MASTER
390	help
391	  general driver for SPI controller core from DesignWare
392
393config SPI_DW_PCI
394	tristate "PCI interface driver for DW SPI core"
395	depends on SPI_DESIGNWARE && PCI
396
397config SPI_DW_MID_DMA
398	bool "DMA support for DW SPI controller on Intel Moorestown platform"
399	depends on SPI_DW_PCI && INTEL_MID_DMAC
400
401config SPI_DW_MMIO
402	tristate "Memory-mapped io interface driver for DW SPI core"
403	depends on SPI_DESIGNWARE && HAVE_CLK
404
405#
406# There are lots of SPI device types, with sensors and memory
407# being probably the most widely used ones.
408#
409comment "SPI Protocol Masters"
410
411config SPI_SPIDEV
412	tristate "User mode SPI device driver support"
413	depends on EXPERIMENTAL
414	help
415	  This supports user mode SPI protocol drivers.
416
417	  Note that this application programming interface is EXPERIMENTAL
418	  and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
419
420config SPI_TLE62X0
421	tristate "Infineon TLE62X0 (for power switching)"
422	depends on SYSFS
423	help
424	  SPI driver for Infineon TLE62X0 series line driver chips,
425	  such as the TLE6220, TLE6230 and TLE6240.  This provides a
426	  sysfs interface, with each line presented as a kind of GPIO
427	  exposing both switch control and diagnostic feedback.
428
429#
430# Add new SPI protocol masters in alphabetical order above this line
431#
432
433endif # SPI_MASTER
434
435# (slave support would go here)
436
437endif # SPI
438