xref: /openbmc/u-boot/drivers/gpio/Kconfig (revision 2a728f3a) 
1#
2# GPIO infrastructure and drivers
3#
4
5menu "GPIO Support"
6
7config DM_GPIO
8	bool "Enable Driver Model for GPIO drivers"
9	depends on DM
10	help
11	  Enable driver model for GPIO access. The standard GPIO
12	  interface (gpio_get_value(), etc.) is then implemented by
13	  the GPIO uclass. Drivers provide methods to query the
14	  particular GPIOs that they provide. The uclass interface
15	  is defined in include/asm-generic/gpio.h.
16
17config ALTERA_PIO
18	bool "Altera PIO driver"
19	depends on DM_GPIO
20	help
21	  Select this to enable PIO for Altera devices. Please find
22	  details on the "Embedded Peripherals IP User Guide" of Altera.
23
24config BCM6345_GPIO
25	bool "BCM6345 GPIO driver"
26	depends on DM_GPIO && ARCH_BMIPS
27	help
28	  This driver supports the GPIO banks on BCM6345 SoCs.
29
30config DWAPB_GPIO
31	bool "DWAPB GPIO driver"
32	depends on DM && DM_GPIO
33	default n
34	help
35	  Support for the Designware APB GPIO driver.
36
37config AT91_GPIO
38	bool "AT91 PIO GPIO driver"
39	depends on DM_GPIO
40	default n
41	help
42	  Say yes here to select AT91 PIO GPIO driver. AT91 PIO
43	  controller manages up to 32 fully programmable input/output
44	  lines. Each I/O line may be dedicated as a general-purpose
45	  I/O or be assigned to a function of an embedded peripheral.
46	  The assignment to a function of an embedded peripheral is
47	  the responsibility of AT91 Pinctrl driver. This driver is
48	  responsible for the general-purpose I/O.
49
50config ATMEL_PIO4
51	bool "ATMEL PIO4 driver"
52	depends on DM_GPIO
53	default n
54	help
55	  Say yes here to support the Atmel PIO4 driver.
56	  The PIO4 is new version of Atmel PIO controller, which manages
57	  up to 128 fully programmable input/output lines. Each I/O line
58	  may be dedicated as a general purpose I/O or be assigned to
59	  a function of an embedded peripheral.
60
61config INTEL_BROADWELL_GPIO
62	bool "Intel Broadwell GPIO driver"
63	depends on DM
64	help
65	  This driver supports Broadwell U devices which have an expanded
66	  GPIO feature set. The difference is large enough to merit a separate
67	  driver from the common Intel ICH6 driver. It supports a total of
68	  95 GPIOs which can be configured from the device tree.
69
70config INTEL_ICH6_GPIO
71	bool "Intel ICH6 compatible legacy GPIO driver"
72	depends on DM_GPIO
73	help
74	  Say yes here to select Intel ICH6 compatible legacy GPIO driver.
75
76config IMX_RGPIO2P
77	bool "i.MX7ULP RGPIO2P driver"
78	depends on DM
79	default n
80	help
81	  This driver supports i.MX7ULP Rapid GPIO2P controller.
82
83config LPC32XX_GPIO
84	bool "LPC32XX GPIO driver"
85	depends on DM
86	default n
87	help
88	  Support for the LPC32XX GPIO driver.
89
90config MSM_GPIO
91	bool "Qualcomm GPIO driver"
92	depends on DM_GPIO
93	default n
94	help
95	  Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
96	  This controller have single bank (default name "soc"), every
97	  gpio has it's own set of registers.
98	  Only simple GPIO operations are supported (get/set, change of
99	  direction and checking pin function).
100	  Supported devices:
101	  - APQ8016
102	  - MSM8916
103
104config OMAP_GPIO
105	bool "TI OMAP GPIO driver"
106	depends on ARCH_OMAP2PLUS
107	default y
108	help
109	  Support GPIO controllers on the TI OMAP3/4/5 and related (such as
110	  AM335x/AM43xx/AM57xx/DRA7xx/etc) families of SoCs.
111
112config CMD_PCA953X
113	bool "Enable the pca953x command"
114	help
115	  Deprecated: This should be converted to driver model.
116
117	  This command provides access to a pca953x GPIO device using the
118	  legacy GPIO interface. Several subcommands are provided which mirror
119	  the standard 'gpio' command. It should use that instead.
120
121config PM8916_GPIO
122	bool "Qualcomm PM8916 PMIC GPIO/keypad driver"
123	depends on DM_GPIO && PMIC_PM8916
124	help
125	  Support for GPIO pins and power/reset buttons found on
126	  Qualcomm PM8916 PMIC.
127	  Default name for GPIO bank is "pm8916".
128	  Power and reset buttons are placed in "pm8916_key" bank and
129          have gpio numbers 0 and 1 respectively.
130
131config PCF8575_GPIO
132	bool "PCF8575 I2C GPIO Expander driver"
133	depends on DM_GPIO && DM_I2C
134	help
135	 Support for PCF8575 I2C 16-bit GPIO expander. Most of these
136	 chips are from NXP and TI.
137
138config ROCKCHIP_GPIO
139	bool "Rockchip GPIO driver"
140	depends on DM_GPIO
141	help
142	  Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
143	  a number of banks (different for each SoC type) each with 32 GPIOs.
144	  The GPIOs for a device are defined in the device tree with one node
145	  for each bank.
146
147config SANDBOX_GPIO
148	bool "Enable sandbox GPIO driver"
149	depends on SANDBOX && DM && DM_GPIO
150	help
151	  This driver supports some simulated GPIOs which can be adjusted
152	  using 'back door' functions like sandbox_gpio_set_value(). Then the
153	  GPIOs can be inspected through the normal get_get_value()
154	  interface. The purpose of this is to allow GPIOs to be used as
155	  normal in sandbox, perhaps with test code actually driving the
156	  behaviour of those GPIOs.
157
158config SANDBOX_GPIO_COUNT
159	int "Number of sandbox GPIOs"
160	depends on SANDBOX_GPIO
161	default 128
162	help
163	  The sandbox driver can support any number of GPIOs. Generally these
164	  are specified using the device tree. But you can also have a number
165	  of 'anonymous' GPIOs that do not belong to any device or bank.
166	  Select a suitable value depending on your needs.
167
168config TEGRA_GPIO
169	bool "Tegra20..210 GPIO driver"
170	depends on DM_GPIO
171	help
172	  Support for the GPIO controller contained in NVIDIA Tegra20 through
173	  Tegra210.
174
175config TEGRA186_GPIO
176	bool "Tegra186 GPIO driver"
177	depends on DM_GPIO
178	help
179	  Support for the GPIO controller contained in NVIDIA Tegra186. This
180	  covers both the "main" and "AON" controller instances, even though
181	  they have slightly different register layout.
182
183config GPIO_UNIPHIER
184	bool "UniPhier GPIO"
185	depends on ARCH_UNIPHIER
186	help
187	  Say yes here to support UniPhier GPIOs.
188
189config VYBRID_GPIO
190	bool "Vybrid GPIO driver"
191	depends on DM
192	default n
193	help
194	  Say yes here to support Vybrid vf610 GPIOs.
195
196config PIC32_GPIO
197	bool "Microchip PIC32 GPIO driver"
198	depends on DM_GPIO && MACH_PIC32
199	default y
200	help
201	  Say yes here to support Microchip PIC32 GPIOs.
202
203config STM32F7_GPIO
204	bool "ST STM32 GPIO driver"
205	depends on DM_GPIO && STM32
206	default y
207	help
208	  Device model driver support for STM32 GPIO controller. It should be
209	  usable on many stm32 families like stm32f4 & stm32H7.
210	  Tested on STM32F7.
211
212config MVEBU_GPIO
213	bool "Marvell MVEBU GPIO driver"
214	depends on DM_GPIO && ARCH_MVEBU
215	default y
216	help
217	  Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
218
219config ZYNQ_GPIO
220	bool "Zynq GPIO driver"
221	depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP)
222	default y
223	help
224	  Supports GPIO access on Zynq SoC.
225
226config DM_74X164
227	bool "74x164 serial-in/parallel-out 8-bits shift register"
228	depends on DM_GPIO
229	help
230	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
231	  shift registers, such as 74lv165, 74hc595.
232	  This driver can be used to provide access to more gpio outputs.
233
234config DM_PCA953X
235	bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
236	depends on DM_GPIO
237	help
238	  Say yes here to provide access to several register-oriented
239	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
240	  models include:
241
242	  4 bits:	pca9536, pca9537
243
244	  8 bits:	max7310, max7315, pca6107, pca9534, pca9538, pca9554,
245			pca9556, pca9557, pca9574, tca6408, xra1202
246
247	  16 bits:	max7312, max7313, pca9535, pca9539, pca9555, pca9575,
248			tca6416
249
250	  24 bits:	tca6424
251
252	  40 bits:	pca9505, pca9698
253
254	  Now, max 24 bits chips and PCA953X compatible chips are
255	  supported
256
257config MPC85XX_GPIO
258	bool "Freescale MPC85XX GPIO driver"
259	depends on DM_GPIO
260	help
261	  This driver supports the built-in GPIO controller of MPC85XX CPUs.
262	  Each GPIO bank is identified by its own entry in the device tree,
263	  i.e.
264
265	  gpio-controller@fc00 {
266		#gpio-cells = <2>;
267		compatible = "fsl,pq3-gpio";
268		reg = <0xfc00 0x100>
269	  }
270
271	  By default, each bank is assumed to have 32 GPIOs, but the ngpios
272	  setting is honored, so the number of GPIOs for each bank is
273	  configurable to match the actual GPIO count of the SoC (e.g. the
274	  32/32/23 banks of the P1022 SoC).
275
276	  Aside from the standard functions of input/output mode, and output
277	  value setting, the open-drain feature, which can configure individual
278	  GPIOs to work as open-drain outputs, is supported.
279
280	  The driver has been tested on MPC85XX, but it is likely that other
281	  PowerQUICC III devices will work as well.
282endmenu
283