xref: /openbmc/u-boot/drivers/gpio/Kconfig (revision 2399e401) 
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 DWAPB_GPIO
25	bool "DWAPB GPIO driver"
26	depends on DM && DM_GPIO
27	default n
28	help
29	  Support for the Designware APB GPIO driver.
30
31config ATMEL_PIO4
32	bool "ATMEL PIO4 driver"
33	depends on DM_GPIO
34	default n
35	help
36	  Say yes here to support the Atmel PIO4 driver.
37	  The PIO4 is new version of Atmel PIO controller, which manages
38	  up to 128 fully programmable input/output lines. Each I/O line
39	  may be dedicated as a general purpose I/O or be assigned to
40	  a function of an embedded peripheral.
41
42config INTEL_BROADWELL_GPIO
43	bool "Intel Broadwell GPIO driver"
44	depends on DM
45	help
46	  This driver supports Broadwell U devices which have an expanded
47	  GPIO feature set. The difference is large enough to merit a separate
48	  driver from the common Intel ICH6 driver. It supports a total of
49	  95 GPIOs which can be configured from the device tree.
50
51config IMX_RGPIO2P
52	bool "i.MX7ULP RGPIO2P driver"
53	depends on DM
54	default n
55	help
56	  This driver supports i.MX7ULP Rapid GPIO2P controller.
57
58config LPC32XX_GPIO
59	bool "LPC32XX GPIO driver"
60	depends on DM
61	default n
62	help
63	  Support for the LPC32XX GPIO driver.
64
65config MSM_GPIO
66	bool "Qualcomm GPIO driver"
67	depends on DM_GPIO
68	default n
69	help
70	  Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
71	  This controller have single bank (default name "soc"), every
72	  gpio has it's own set of registers.
73	  Only simple GPIO operations are supported (get/set, change of
74	  direction and checking pin function).
75	  Supported devices:
76	  - APQ8016
77	  - MSM8916
78
79config PM8916_GPIO
80	bool "Qualcomm PM8916 PMIC GPIO/keypad driver"
81	depends on DM_GPIO && PMIC_PM8916
82	help
83	  Support for GPIO pins and power/reset buttons found on
84	  Qualcomm PM8916 PMIC.
85	  Default name for GPIO bank is "pm8916".
86	  Power and reset buttons are placed in "pm8916_key" bank and
87          have gpio numbers 0 and 1 respectively.
88
89config PCF8575_GPIO
90	bool "PCF8575 I2C GPIO Expander driver"
91	depends on DM_GPIO && DM_I2C
92	help
93	 Support for PCF8575 I2C 16-bit GPIO expander. Most of these
94	 chips are from NXP and TI.
95
96config ROCKCHIP_GPIO
97	bool "Rockchip GPIO driver"
98	depends on DM_GPIO
99	help
100	  Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
101	  a number of banks (different for each SoC type) each with 32 GPIOs.
102	  The GPIOs for a device are defined in the device tree with one node
103	  for each bank.
104
105config SANDBOX_GPIO
106	bool "Enable sandbox GPIO driver"
107	depends on SANDBOX && DM && DM_GPIO
108	help
109	  This driver supports some simulated GPIOs which can be adjusted
110	  using 'back door' functions like sandbox_gpio_set_value(). Then the
111	  GPIOs can be inspected through the normal get_get_value()
112	  interface. The purpose of this is to allow GPIOs to be used as
113	  normal in sandbox, perhaps with test code actually driving the
114	  behaviour of those GPIOs.
115
116config SANDBOX_GPIO_COUNT
117	int "Number of sandbox GPIOs"
118	depends on SANDBOX_GPIO
119	default 128
120	help
121	  The sandbox driver can support any number of GPIOs. Generally these
122	  are specified using the device tree. But you can also have a number
123	  of 'anonymous' GPIOs that do not belong to any device or bank.
124	  Select a suitable value depending on your needs.
125
126config TEGRA_GPIO
127	bool "Tegra20..210 GPIO driver"
128	depends on DM_GPIO
129	help
130	  Support for the GPIO controller contained in NVIDIA Tegra20 through
131	  Tegra210.
132
133config TEGRA186_GPIO
134	bool "Tegra186 GPIO driver"
135	depends on DM_GPIO
136	help
137	  Support for the GPIO controller contained in NVIDIA Tegra186. This
138	  covers both the "main" and "AON" controller instances, even though
139	  they have slightly different register layout.
140
141config GPIO_UNIPHIER
142	bool "UniPhier GPIO"
143	depends on ARCH_UNIPHIER
144	help
145	  Say yes here to support UniPhier GPIOs.
146
147config VYBRID_GPIO
148	bool "Vybrid GPIO driver"
149	depends on DM
150	default n
151	help
152	  Say yes here to support Vybrid vf610 GPIOs.
153
154config PIC32_GPIO
155	bool "Microchip PIC32 GPIO driver"
156	depends on DM_GPIO && MACH_PIC32
157	default y
158	help
159	  Say yes here to support Microchip PIC32 GPIOs.
160
161config MVEBU_GPIO
162	bool "Marvell MVEBU GPIO driver"
163	depends on DM_GPIO && ARCH_MVEBU
164	default y
165	help
166	  Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
167
168config ZYNQ_GPIO
169	bool "Zynq GPIO driver"
170	depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP)
171	default y
172	help
173	  Supports GPIO access on Zynq SoC.
174
175config DM_74X164
176	bool "74x164 serial-in/parallel-out 8-bits shift register"
177	depends on DM_GPIO
178	help
179	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
180	  shift registers, such as 74lv165, 74hc595.
181	  This driver can be used to provide access to more gpio outputs.
182
183config DM_PCA953X
184	bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
185	depends on DM_GPIO
186	help
187	  Say yes here to provide access to several register-oriented
188	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
189	  models include:
190
191	  4 bits:	pca9536, pca9537
192
193	  8 bits:	max7310, max7315, pca6107, pca9534, pca9538, pca9554,
194			pca9556, pca9557, pca9574, tca6408, xra1202
195
196	  16 bits:	max7312, max7313, pca9535, pca9539, pca9555, pca9575,
197			tca6416
198
199	  24 bits:	tca6424
200
201	  40 bits:	pca9505, pca9698
202
203	  Now, max 24 bits chips and PCA953X compatible chips are
204	  supported
205
206config MPC85XX_GPIO
207	bool "Freescale MPC85XX GPIO driver"
208	depends on DM_GPIO
209	help
210	  This driver supports the built-in GPIO controller of MPC85XX CPUs.
211	  Each GPIO bank is identified by its own entry in the device tree,
212	  i.e.
213
214	  gpio-controller@fc00 {
215		#gpio-cells = <2>;
216		compatible = "fsl,pq3-gpio";
217		reg = <0xfc00 0x100>
218	  }
219
220	  By default, each bank is assumed to have 32 GPIOs, but the ngpios
221	  setting is honored, so the number of GPIOs for each bank is
222	  configurable to match the actual GPIO count of the SoC (e.g. the
223	  32/32/23 banks of the P1022 SoC).
224
225	  Aside from the standard functions of input/output mode, and output
226	  value setting, the open-drain feature, which can configure individual
227	  GPIOs to work as open-drain outputs, is supported.
228
229	  The driver has been tested on MPC85XX, but it is likely that other
230	  PowerQUICC III devices will work as well.
231endmenu
232