1#
2# I2C subsystem configuration
3#
4
5menu "I2C support"
6
7config DM_I2C
8	bool "Enable Driver Model for I2C drivers"
9	depends on DM
10	help
11	  Enable driver model for I2C. The I2C uclass interface: probe, read,
12	  write and speed, is implemented with the bus drivers operations,
13	  which provide methods for bus setting and data transfer. Each chip
14	  device (bus child) info is kept as parent plat. The interface
15	  is defined in include/i2c.h.
16
17config SPL_DM_I2C
18	bool "Enable Driver Model for I2C drivers in SPL"
19	depends on SPL_DM && DM_I2C
20	default y
21	help
22	  Enable driver model for I2C. The I2C uclass interface: probe, read,
23	  write and speed, is implemented with the bus drivers operations,
24	  which provide methods for bus setting and data transfer. Each chip
25	  device (bus child) info is kept as parent platdata. The interface
26	  is defined in include/i2c.h.
27
28config I2C_CROS_EC_TUNNEL
29	tristate "Chrome OS EC tunnel I2C bus"
30	depends on CROS_EC
31	help
32	  This provides an I2C bus that will tunnel i2c commands through to
33	  the other side of the Chrome OS EC to the I2C bus connected there.
34	  This will work whatever the interface used to talk to the EC (SPI,
35	  I2C or LPC). Some Chromebooks use this when the hardware design
36	  does not allow direct access to the main PMIC from the AP.
37
38config I2C_CROS_EC_LDO
39	bool "Provide access to LDOs on the Chrome OS EC"
40	depends on CROS_EC
41	---help---
42	On many Chromebooks the main PMIC is inaccessible to the AP. This is
43	often dealt with by using an I2C pass-through interface provided by
44	the EC. On some unfortunate models (e.g. Spring) the pass-through
45	is not available, and an LDO message is available instead. This
46	option enables a driver which provides very basic access to those
47	regulators, via the EC. We implement this as an I2C bus	which
48	emulates just the TPS65090 messages we know about. This is done to
49	avoid duplicating the logic in the TPS65090 regulator driver for
50	enabling/disabling an LDO.
51
52config I2C_SET_DEFAULT_BUS_NUM
53	bool "Set default I2C bus number"
54	depends on DM_I2C
55	help
56	  Set default number of I2C bus to be accessed. This option provides
57	  behaviour similar to old (i.e. pre DM) I2C bus driver.
58
59config I2C_DEFAULT_BUS_NUMBER
60	hex "I2C default bus number"
61	depends on I2C_SET_DEFAULT_BUS_NUM
62	default 0x0
63	help
64	  Number of default I2C bus to use
65
66config DM_I2C_GPIO
67	bool "Enable Driver Model for software emulated I2C bus driver"
68	depends on DM_I2C && DM_GPIO
69	help
70	  Enable the i2c bus driver emulation by using the GPIOs. The bus GPIO
71	  configuration is given by the device tree. Kernel-style device tree
72	  bindings are supported.
73	  Binding info: doc/device-tree-bindings/i2c/i2c-gpio.txt
74
75config SPL_DM_I2C_GPIO
76	bool "Enable Driver Model for software emulated I2C bus driver in SPL"
77	depends on SPL_DM && DM_I2C_GPIO && SPL_DM_GPIO && SPL_GPIO_SUPPORT
78	default y
79	help
80	  Enable the i2c bus driver emulation by using the GPIOs. The bus GPIO
81	  configuration is given by the device tree. Kernel-style device tree
82	  bindings are supported.
83	  Binding info: doc/device-tree-bindings/i2c/i2c-gpio.txt
84
85config SYS_I2C_AT91
86	bool "Atmel I2C driver"
87	depends on DM_I2C && ARCH_AT91
88	help
89	  Add support for the Atmel I2C driver. A serious problem is that there
90	  is no documented way to issue repeated START conditions for more than
91	  two messages, as needed to support combined I2C messages. Use the
92	  i2c-gpio driver unless your system can cope with this limitation.
93	  Binding info: doc/device-tree-bindings/i2c/i2c-at91.txt
94
95config SYS_I2C_IPROC
96	bool "Broadcom I2C driver"
97	depends on DM_I2C
98	help
99	  Broadcom I2C driver.
100	  Add support for Broadcom I2C driver.
101	  Say yes here to to enable the Broadco I2C driver.
102
103config SYS_I2C_FSL
104       bool "Freescale I2C bus driver"
105       depends on DM_I2C
106       help
107	  Add support for Freescale I2C busses as used on MPC8240, MPC8245, and
108	  MPC85xx processors.
109
110config SYS_I2C_CADENCE
111	tristate "Cadence I2C Controller"
112	depends on DM_I2C
113	help
114	  Say yes here to select Cadence I2C Host Controller. This controller is
115	  e.g. used by Xilinx Zynq.
116
117config SYS_I2C_CA
118	tristate "Cortina-Access I2C Controller"
119	depends on DM_I2C && CORTINA_PLATFORM
120	default n
121	help
122	  Add support for the Cortina Access I2C host controller.
123	  Say yes here to select Cortina-Access I2C Host Controller.
124
125config SYS_I2C_DAVINCI
126	bool "Davinci I2C Controller"
127	depends on (ARCH_KEYSTONE || ARCH_DAVINCI)
128	help
129	  Say yes here to add support for Davinci and Keystone I2C controller
130
131config SYS_I2C_DW
132	bool "Designware I2C Controller"
133	default n
134	help
135	  Say yes here to select the Designware I2C Host Controller. This
136	  controller is used in various SoCs, e.g. the ST SPEAr, Altera
137	  SoCFPGA, Synopsys ARC700 and some Intel x86 SoCs.
138
139config SYS_I2C_DW_ENABLE_STATUS_UNSUPPORTED
140	bool "DW I2C Enable Status Register not supported"
141	depends on SYS_I2C_DW && (TARGET_SPEAR300 || TARGET_SPEAR310 || \
142		TARGET_SPEAR320 || TARGET_SPEAR600 || TARGET_X600)
143	default y
144	help
145	  Some versions of the Designware I2C controller do not support the
146	  enable status register. This config option can be enabled in such
147	  cases.
148
149config SYS_I2C_ASPEED
150	bool "Aspeed I2C Controller"
151	depends on DM_I2C && ARCH_ASPEED
152	help
153	  Say yes here to select Aspeed I2C Host Controller. The driver
154	  supports AST2500 and AST2400 controllers, but is very limited.
155	  Only single master mode is supported and only byte-by-byte
156	  synchronous reads and writes are supported, no Pool Buffers or DMA.
157
158config SYS_I2C_INTEL
159	bool "Intel I2C/SMBUS driver"
160	depends on DM_I2C
161	help
162	  Add support for the Intel SMBUS driver. So far this driver is just
163	  a stub which perhaps some basic init. There is no implementation of
164	  the I2C API meaning that any I2C operations will immediately fail
165	  for now.
166
167config SYS_I2C_IMX_LPI2C
168	bool "NXP i.MX LPI2C driver"
169	help
170	  Add support for the NXP i.MX LPI2C driver.
171
172config SYS_I2C_MESON
173	bool "Amlogic Meson I2C driver"
174	depends on DM_I2C && ARCH_MESON
175	help
176	  Add support for the I2C controller available in Amlogic Meson
177	  SoCs. The controller supports programmable bus speed including
178	  standard (100kbits/s) and fast (400kbit/s) speed and allows the
179	  software to define a flexible format of the bit streams. It has an
180	  internal buffer holding up to 8 bytes for transfers and supports
181	  both 7-bit and 10-bit addresses.
182
183config SYS_I2C_MXC
184	bool "NXP MXC I2C driver"
185	help
186	  Add support for the NXP I2C driver. This supports up to four bus
187	  channels and operating on standard mode up to 100 kbits/s and fast
188	  mode up to 400 kbits/s.
189
190# These settings are not used with DM_I2C, however SPL doesn't use
191# DM_I2C even if DM_I2C is enabled, and so might use these settings even
192# when main u-boot does not!
193if SYS_I2C_MXC && (!DM_I2C || SPL)
194config SYS_I2C_MXC_I2C1
195	bool "NXP MXC I2C1"
196	help
197	 Add support for NXP MXC I2C Controller 1.
198	 Required for SoCs which have I2C MXC controller 1 eg LS1088A, LS2080A
199
200config SYS_I2C_MXC_I2C2
201	bool "NXP MXC I2C2"
202	help
203	 Add support for NXP MXC I2C Controller 2.
204	 Required for SoCs which have I2C MXC controller 2 eg LS1088A, LS2080A
205
206config SYS_I2C_MXC_I2C3
207	bool "NXP MXC I2C3"
208	help
209	 Add support for NXP MXC I2C Controller 3.
210	 Required for SoCs which have I2C MXC controller 3 eg LS1088A, LS2080A
211
212config SYS_I2C_MXC_I2C4
213	bool "NXP MXC I2C4"
214	help
215	 Add support for NXP MXC I2C Controller 4.
216	 Required for SoCs which have I2C MXC controller 4 eg LS1088A, LS2080A
217
218config SYS_I2C_MXC_I2C5
219	bool "NXP MXC I2C5"
220	help
221	 Add support for NXP MXC I2C Controller 5.
222	 Required for SoCs which have I2C MXC controller 5 eg LX2160A
223
224config SYS_I2C_MXC_I2C6
225	bool "NXP MXC I2C6"
226	help
227	 Add support for NXP MXC I2C Controller 6.
228	 Required for SoCs which have I2C MXC controller 6 eg LX2160A
229
230config SYS_I2C_MXC_I2C7
231	bool "NXP MXC I2C7"
232	help
233	 Add support for NXP MXC I2C Controller 7.
234	 Required for SoCs which have I2C MXC controller 7 eg LX2160A
235
236config SYS_I2C_MXC_I2C8
237	bool "NXP MXC I2C8"
238	help
239	 Add support for NXP MXC I2C Controller 8.
240	 Required for SoCs which have I2C MXC controller 8 eg LX2160A
241endif
242
243if SYS_I2C_MXC_I2C1
244config SYS_MXC_I2C1_SPEED
245	int "I2C Channel 1 speed"
246	default 40000000 if TARGET_LS2080A_EMU
247	default 100000
248	help
249	 MXC I2C Channel 1 speed
250
251config SYS_MXC_I2C1_SLAVE
252	int "I2C1 Slave"
253	default 0
254	help
255	 MXC I2C1 Slave
256endif
257
258if SYS_I2C_MXC_I2C2
259config SYS_MXC_I2C2_SPEED
260	int "I2C Channel 2 speed"
261	default 40000000 if TARGET_LS2080A_EMU
262	default 100000
263	help
264	 MXC I2C Channel 2 speed
265
266config SYS_MXC_I2C2_SLAVE
267	int "I2C2 Slave"
268	default 0
269	help
270	 MXC I2C2 Slave
271endif
272
273if SYS_I2C_MXC_I2C3
274config SYS_MXC_I2C3_SPEED
275	int "I2C Channel 3 speed"
276	default 100000
277	help
278	 MXC I2C Channel 3 speed
279
280config SYS_MXC_I2C3_SLAVE
281	int "I2C3 Slave"
282	default 0
283	help
284	 MXC I2C3 Slave
285endif
286
287if SYS_I2C_MXC_I2C4
288config SYS_MXC_I2C4_SPEED
289	int "I2C Channel 4 speed"
290	default 100000
291	help
292	 MXC I2C Channel 4 speed
293
294config SYS_MXC_I2C4_SLAVE
295	int "I2C4 Slave"
296	default 0
297	help
298	 MXC I2C4 Slave
299endif
300
301if SYS_I2C_MXC_I2C5
302config SYS_MXC_I2C5_SPEED
303	int "I2C Channel 5 speed"
304	default 100000
305	help
306	 MXC I2C Channel 5 speed
307
308config SYS_MXC_I2C5_SLAVE
309	int "I2C5 Slave"
310	default 0
311	help
312	 MXC I2C5 Slave
313endif
314
315if SYS_I2C_MXC_I2C6
316config SYS_MXC_I2C6_SPEED
317	int "I2C Channel 6 speed"
318	default 100000
319	help
320	 MXC I2C Channel 6 speed
321
322config SYS_MXC_I2C6_SLAVE
323	int "I2C6 Slave"
324	default 0
325	help
326	 MXC I2C6 Slave
327endif
328
329if SYS_I2C_MXC_I2C7
330config SYS_MXC_I2C7_SPEED
331	int "I2C Channel 7 speed"
332	default 100000
333	help
334	 MXC I2C Channel 7 speed
335
336config SYS_MXC_I2C7_SLAVE
337	int "I2C7 Slave"
338	default 0
339	help
340	 MXC I2C7 Slave
341endif
342
343if SYS_I2C_MXC_I2C8
344config SYS_MXC_I2C8_SPEED
345	int "I2C Channel 8 speed"
346	default 100000
347	help
348	 MXC I2C Channel 8 speed
349
350config SYS_MXC_I2C8_SLAVE
351	int "I2C8 Slave"
352	default 0
353	help
354	 MXC I2C8 Slave
355endif
356
357config SYS_I2C_NEXELL
358	bool "Nexell I2C driver"
359	depends on DM_I2C
360	help
361	  Add support for the Nexell I2C driver. This is used with various
362	  Nexell parts such as S5Pxx18 series SoCs. All chips
363	  have several I2C ports and all are provided, controlled by the
364	  device tree.
365
366config SYS_I2C_OCORES
367	bool "ocores I2C driver"
368	depends on DM_I2C
369	help
370	  Add support for ocores I2C controller. For details see
371	  https://opencores.org/projects/i2c
372
373config SYS_I2C_OMAP24XX
374	bool "TI OMAP2+ I2C driver"
375	depends on ARCH_OMAP2PLUS || ARCH_K3
376	help
377	  Add support for the OMAP2+ I2C driver.
378
379if SYS_I2C_OMAP24XX
380config SYS_OMAP24_I2C_SLAVE
381	int "I2C Slave addr channel 0"
382	default 1
383	help
384	  OMAP24xx I2C Slave address channel 0
385
386config SYS_OMAP24_I2C_SPEED
387	int "I2C Slave channel 0 speed"
388	default 100000
389	help
390	  OMAP24xx Slave speed channel 0
391endif
392
393config SYS_I2C_RCAR_I2C
394	bool "Renesas RCar I2C driver"
395	depends on (RCAR_GEN3 || RCAR_GEN2) && DM_I2C
396	help
397	  Support for Renesas RCar I2C controller.
398
399config SYS_I2C_RCAR_IIC
400	bool "Renesas RCar Gen3 IIC driver"
401	depends on (RCAR_GEN3 || RCAR_GEN2) && DM_I2C
402	help
403	  Support for Renesas RCar Gen3 IIC controller.
404
405config SYS_I2C_ROCKCHIP
406	bool "Rockchip I2C driver"
407	depends on DM_I2C
408	help
409	  Add support for the Rockchip I2C driver. This is used with various
410	  Rockchip parts such as RK3126, RK3128, RK3036 and RK3288. All chips
411	  have several I2C ports and all are provided, controlled by the
412	  device tree.
413
414config SYS_I2C_SANDBOX
415	bool "Sandbox I2C driver"
416	depends on SANDBOX && DM_I2C
417	help
418	  Enable I2C support for sandbox. This is an emulation of a real I2C
419	  bus. Devices can be attached to the bus using the device tree
420	  which specifies the driver to use.  See sandbox.dts as an example.
421
422config SYS_I2C_OCTEON
423	bool "Octeon II/III/TX/TX2 I2C driver"
424	depends on (ARCH_OCTEON || ARCH_OCTEONTX || ARCH_OCTEONTX2) && DM_I2C
425	default y
426	help
427	  Add support for the Marvell Octeon I2C driver. This is used with
428	  various Octeon parts such as Octeon II/III and OcteonTX/TX2. All
429	  chips have several I2C ports and all are provided, controlled by
430	  the device tree.
431
432config SYS_I2C_S3C24X0
433	bool "Samsung I2C driver"
434	depends on ARCH_EXYNOS4 && DM_I2C
435	help
436	  Support for Samsung I2C controller as Samsung SoCs.
437
438config SYS_I2C_STM32F7
439	bool "STMicroelectronics STM32F7 I2C support"
440	depends on (STM32F7 || STM32H7 || ARCH_STM32MP) && DM_I2C
441	help
442	  Enable this option to add support for STM32 I2C controller
443	  introduced with STM32F7/H7 SoCs. This I2C controller supports :
444	   _ Slave and master modes
445	   _ Multimaster capability
446	   _ Standard-mode (up to 100 kHz)
447	   _ Fast-mode (up to 400 kHz)
448	   _ Fast-mode Plus (up to 1 MHz)
449	   _ 7-bit and 10-bit addressing mode
450	   _ Multiple 7-bit slave addresses (2 addresses, 1 with configurable mask)
451	   _ All 7-bit addresses acknowledge mode
452	   _ General call
453	   _ Programmable setup and hold times
454	   _ Easy to use event management
455	   _ Optional clock stretching
456	   _ Software reset
457
458config SYS_I2C_TEGRA
459	bool "NVIDIA Tegra internal I2C controller"
460	depends on ARCH_TEGRA
461	help
462	  Support for NVIDIA I2C controller available in Tegra SoCs.
463
464config SYS_I2C_UNIPHIER
465	bool "UniPhier I2C driver"
466	depends on ARCH_UNIPHIER && DM_I2C
467	default y
468	help
469	  Support for UniPhier I2C controller driver.  This I2C controller
470	  is used on PH1-LD4, PH1-sLD8 or older UniPhier SoCs.
471
472config SYS_I2C_UNIPHIER_F
473	bool "UniPhier FIFO-builtin I2C driver"
474	depends on ARCH_UNIPHIER && DM_I2C
475	default y
476	help
477	  Support for UniPhier FIFO-builtin I2C controller driver.
478	  This I2C controller is used on PH1-Pro4 or newer UniPhier SoCs.
479
480config SYS_I2C_VERSATILE
481	bool "Arm Ltd Versatile I2C bus driver"
482	depends on DM_I2C && (TARGET_VEXPRESS_CA15_TC2 || TARGET_VEXPRESS64_JUNO)
483	help
484	  Add support for the Arm Ltd Versatile Express I2C driver. The I2C host
485	  controller is present in the development boards manufactured by Arm Ltd.
486
487config SYS_I2C_MVTWSI
488	bool "Marvell I2C driver"
489	depends on DM_I2C
490	help
491	  Support for Marvell I2C controllers as used on the orion5x and
492	  kirkwood SoC families.
493
494config TEGRA186_BPMP_I2C
495	bool "Enable Tegra186 BPMP-based I2C driver"
496	depends on TEGRA186_BPMP
497	help
498	  Support for Tegra I2C controllers managed by the BPMP (Boot and
499	  Power Management Processor). On Tegra186, some I2C controllers are
500	  directly controlled by the main CPU, whereas others are controlled
501	  by the BPMP, and can only be accessed by the main CPU via IPC
502	  requests to the BPMP. This driver covers the latter case.
503
504config SYS_I2C_BUS_MAX
505	int "Max I2C busses"
506	depends on ARCH_KEYSTONE || ARCH_OMAP2PLUS || ARCH_SOCFPGA
507	default 2 if TI816X
508	default 3 if OMAP34XX || AM33XX || AM43XX || ARCH_KEYSTONE
509	default 4 if ARCH_SOCFPGA || OMAP44XX || TI814X
510	default 5 if OMAP54XX
511	help
512	  Define the maximum number of available I2C buses.
513
514config SYS_I2C_XILINX_XIIC
515	bool "Xilinx AXI I2C driver"
516	depends on DM_I2C
517	help
518	  Support for Xilinx AXI I2C controller.
519
520config SYS_I2C_IHS
521        bool "gdsys IHS I2C driver"
522        depends on DM_I2C
523        help
524          Support for gdsys IHS I2C driver on FPGA bus.
525
526source "drivers/i2c/muxes/Kconfig"
527
528endmenu
529