xref: /openbmc/u-boot/drivers/gpio/Kconfig (revision 730d2544) 
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 LPC32XX_GPIO
52	bool "LPC32XX GPIO driver"
53	depends on DM
54	default n
55	help
56	  Support for the LPC32XX GPIO driver.
57
58config MSM_GPIO
59	bool "Qualcomm GPIO driver"
60	depends on DM_GPIO
61	default n
62	help
63	  Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
64	  This controller have single bank (default name "soc"), every
65	  gpio has it's own set of registers.
66	  Only simple GPIO operations are supported (get/set, change of
67	  direction and checking pin function).
68	  Supported devices:
69	  - APQ8016
70	  - MSM8916
71
72config PM8916_GPIO
73	bool "Qualcomm PM8916 PMIC GPIO/keypad driver"
74	depends on DM_GPIO && PMIC_PM8916
75	help
76	  Support for GPIO pins and power/reset buttons found on
77	  Qualcomm PM8916 PMIC.
78	  Default name for GPIO bank is "pm8916".
79	  Power and reset buttons are placed in "pm8916_key" bank and
80          have gpio numbers 0 and 1 respectively.
81
82config PCF8575_GPIO
83	bool "PCF8575 I2C GPIO Expander driver"
84	depends on DM_GPIO && DM_I2C
85	help
86	 Support for PCF8575 I2C 16-bit GPIO expander. Most of these
87	 chips are from NXP and TI.
88
89config ROCKCHIP_GPIO
90	bool "Rockchip GPIO driver"
91	depends on DM_GPIO
92	help
93	  Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
94	  a number of banks (different for each SoC type) each with 32 GPIOs.
95	  The GPIOs for a device are defined in the device tree with one node
96	  for each bank.
97
98config SANDBOX_GPIO
99	bool "Enable sandbox GPIO driver"
100	depends on SANDBOX && DM && DM_GPIO
101	help
102	  This driver supports some simulated GPIOs which can be adjusted
103	  using 'back door' functions like sandbox_gpio_set_value(). Then the
104	  GPIOs can be inspected through the normal get_get_value()
105	  interface. The purpose of this is to allow GPIOs to be used as
106	  normal in sandbox, perhaps with test code actually driving the
107	  behaviour of those GPIOs.
108
109config SANDBOX_GPIO_COUNT
110	int "Number of sandbox GPIOs"
111	depends on SANDBOX_GPIO
112	default 128
113	help
114	  The sandbox driver can support any number of GPIOs. Generally these
115	  are specified using the device tree. But you can also have a number
116	  of 'anonymous' GPIOs that do not belong to any device or bank.
117	  Select a suitable value depending on your needs.
118
119config TEGRA_GPIO
120	bool "Tegra20..210 GPIO driver"
121	depends on DM_GPIO
122	help
123	  Support for the GPIO controller contained in NVIDIA Tegra20 through
124	  Tegra210.
125
126config TEGRA186_GPIO
127	bool "Tegra186 GPIO driver"
128	depends on DM_GPIO
129	help
130	  Support for the GPIO controller contained in NVIDIA Tegra186. This
131	  covers both the "main" and "AON" controller instances, even though
132	  they have slightly different register layout.
133
134config GPIO_UNIPHIER
135	bool "UniPhier GPIO"
136	depends on ARCH_UNIPHIER
137	help
138	  Say yes here to support UniPhier GPIOs.
139
140config VYBRID_GPIO
141	bool "Vybrid GPIO driver"
142	depends on DM
143	default n
144	help
145	  Say yes here to support Vybrid vf610 GPIOs.
146
147config PIC32_GPIO
148	bool "Microchip PIC32 GPIO driver"
149	depends on DM_GPIO && MACH_PIC32
150	default y
151	help
152	  Say yes here to support Microchip PIC32 GPIOs.
153
154config MVEBU_GPIO
155	bool "Marvell MVEBU GPIO driver"
156	depends on DM_GPIO && ARCH_MVEBU
157	default y
158	help
159	  Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
160
161config ZYNQ_GPIO
162	bool "Zynq GPIO driver"
163	depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP)
164	default y
165	help
166	  Supports GPIO access on Zynq SoC.
167
168config DM_74X164
169	bool "74x164 serial-in/parallel-out 8-bits shift register"
170	depends on DM_GPIO
171	help
172	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
173	  shift registers, such as 74lv165, 74hc595.
174	  This driver can be used to provide access to more gpio outputs.
175
176config DM_PCA953X
177	bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
178	depends on DM_GPIO
179	help
180	  Say yes here to provide access to several register-oriented
181	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
182	  models include:
183
184	  4 bits:	pca9536, pca9537
185
186	  8 bits:	max7310, max7315, pca6107, pca9534, pca9538, pca9554,
187			pca9556, pca9557, pca9574, tca6408, xra1202
188
189	  16 bits:	max7312, max7313, pca9535, pca9539, pca9555, pca9575,
190			tca6416
191
192	  24 bits:	tca6424
193
194	  40 bits:	pca9505, pca9698
195
196	  Now, max 24 bits chips and PCA953X compatible chips are
197	  supported
198
199config MPC85XX_GPIO
200	bool "Freescale MPC85XX GPIO driver"
201	depends on DM_GPIO
202	help
203	  This driver supports the built-in GPIO controller of MPC85XX CPUs.
204	  Each GPIO bank is identified by its own entry in the device tree,
205	  i.e.
206
207	  gpio-controller@fc00 {
208		#gpio-cells = <2>;
209		compatible = "fsl,pq3-gpio";
210		reg = <0xfc00 0x100>
211	  }
212
213	  By default, each bank is assumed to have 32 GPIOs, but the ngpios
214	  setting is honored, so the number of GPIOs for each bank is
215	  configurable to match the actual GPIO count of the SoC (e.g. the
216	  32/32/23 banks of the P1022 SoC).
217
218	  Aside from the standard functions of input/output mode, and output
219	  value setting, the open-drain feature, which can configure individual
220	  GPIOs to work as open-drain outputs, is supported.
221
222	  The driver has been tested on MPC85XX, but it is likely that other
223	  PowerQUICC III devices will work as well.
224endmenu
225