2 # GPIO infrastructure and drivers
8 bool "Enable Driver Model for GPIO drivers"
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.
18 bool "Enable GPIO hog support"
22 Enable gpio hog support
23 The GPIO chip may contain GPIO hog definitions. GPIO hogging
24 is a mechanism providing automatic GPIO request and config-
25 uration as part of the gpio-controller's driver probe function.
28 bool "Altera PIO driver"
31 Select this to enable PIO for Altera devices. Please find
32 details on the "Embedded Peripherals IP User Guide" of Altera.
35 bool "BCM6345 GPIO driver"
36 depends on DM_GPIO && (ARCH_BMIPS || ARCH_BCM6858 || ARCH_BCM63158)
38 This driver supports the GPIO banks on BCM6345 SoCs.
41 bool "DWAPB GPIO driver"
42 depends on DM && DM_GPIO
45 Support for the Designware APB GPIO driver.
48 bool "AT91 PIO GPIO driver"
52 Say yes here to select AT91 PIO GPIO driver. AT91 PIO
53 controller manages up to 32 fully programmable input/output
54 lines. Each I/O line may be dedicated as a general-purpose
55 I/O or be assigned to a function of an embedded peripheral.
56 The assignment to a function of an embedded peripheral is
57 the responsibility of AT91 Pinctrl driver. This driver is
58 responsible for the general-purpose I/O.
61 bool "ATMEL PIO4 driver"
65 Say yes here to support the Atmel PIO4 driver.
66 The PIO4 is new version of Atmel PIO controller, which manages
67 up to 128 fully programmable input/output lines. Each I/O line
68 may be dedicated as a general purpose I/O or be assigned to
69 a function of an embedded peripheral.
72 bool "DA8xx GPIO Driver"
74 This driver supports the DA8xx GPIO controller
76 config INTEL_BROADWELL_GPIO
77 bool "Intel Broadwell GPIO driver"
80 This driver supports Broadwell U devices which have an expanded
81 GPIO feature set. The difference is large enough to merit a separate
82 driver from the common Intel ICH6 driver. It supports a total of
83 95 GPIOs which can be configured from the device tree.
85 config INTEL_ICH6_GPIO
86 bool "Intel ICH6 compatible legacy GPIO driver"
89 Say yes here to select Intel ICH6 compatible legacy GPIO driver.
92 bool "i.MX7ULP RGPIO2P driver"
96 This driver supports i.MX7ULP Rapid GPIO2P controller.
99 bool "HSDK CREG GPIO griver"
103 This driver supports CREG GPIOs on Synopsys HSDK SOC.
106 bool "LPC32XX GPIO driver"
110 Support for the LPC32XX GPIO driver.
113 bool "Microsemi Serial GPIO driver"
114 depends on DM_GPIO && SOC_VCOREIII
116 Support for the VCoreIII SoC serial GPIO device. By using a
117 serial interface, the SIO controller significantly extends
118 the number of available GPIOs with a minimum number of
119 additional pins on the device. The primary purpose of the
120 SIO controller is to connect control signals from SFP
121 modules and to act as an LED controller.
124 bool "Qualcomm GPIO driver"
128 Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
129 This controller have single bank (default name "soc"), every
130 gpio has it's own set of registers.
131 Only simple GPIO operations are supported (get/set, change of
132 direction and checking pin function).
138 bool "Freescale/NXP MXC GPIO driver"
140 Support GPIO controllers on various i.MX platforms
143 bool "Freescale/NXP MXS GPIO driver"
145 Support GPIO controllers on i.MX23 and i.MX28 platforms
148 bool "TI OMAP GPIO driver"
149 depends on ARCH_OMAP2PLUS
152 Support GPIO controllers on the TI OMAP3/4/5 and related (such as
153 AM335x/AM43xx/AM57xx/DRA7xx/etc) families of SoCs.
156 bool "Enable the pca953x command"
158 Deprecated: This should be converted to driver model.
160 This command provides access to a pca953x GPIO device using the
161 legacy GPIO interface. Several subcommands are provided which mirror
162 the standard 'gpio' command. It should use that instead.
165 bool "Qualcomm PM8916 PMIC GPIO/keypad driver"
166 depends on DM_GPIO && PMIC_PM8916
168 Support for GPIO pins and power/reset buttons found on
169 Qualcomm PM8916 PMIC.
170 Default name for GPIO bank is "pm8916".
171 Power and reset buttons are placed in "pm8916_key" bank and
172 have gpio numbers 0 and 1 respectively.
175 bool "PCF8575 I2C GPIO Expander driver"
176 depends on DM_GPIO && DM_I2C
178 Support for PCF8575 I2C 16-bit GPIO expander. Most of these
179 chips are from NXP and TI.
182 bool "Renesas RCar GPIO driver"
183 depends on DM_GPIO && ARCH_RMOBILE
185 This driver supports the GPIO banks on Renesas RCar SoCs.
188 bool "Renesas RZ/A1 GPIO driver"
189 depends on DM_GPIO && RZA1
191 This driver supports the GPIO banks on Renesas RZ/A1 R7S72100 SoCs.
194 bool "Rockchip GPIO driver"
197 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
198 a number of banks (different for each SoC type) each with 32 GPIOs.
199 The GPIOs for a device are defined in the device tree with one node
203 bool "Enable sandbox GPIO driver"
204 depends on SANDBOX && DM && DM_GPIO
206 This driver supports some simulated GPIOs which can be adjusted
207 using 'back door' functions like sandbox_gpio_set_value(). Then the
208 GPIOs can be inspected through the normal get_get_value()
209 interface. The purpose of this is to allow GPIOs to be used as
210 normal in sandbox, perhaps with test code actually driving the
211 behaviour of those GPIOs.
213 config SANDBOX_GPIO_COUNT
214 int "Number of sandbox GPIOs"
215 depends on SANDBOX_GPIO
218 The sandbox driver can support any number of GPIOs. Generally these
219 are specified using the device tree. But you can also have a number
220 of 'anonymous' GPIOs that do not belong to any device or bank.
221 Select a suitable value depending on your needs.
224 bool "Allwinner GPIO driver"
225 depends on ARCH_SUNXI
227 Support the GPIO device in Allwinner SoCs.
230 bool "Xilinx GPIO driver"
233 This config enable the Xilinx GPIO driver for Microblaze.
236 bool "tca642x - Command to access tca642x state"
238 DEPRECATED - This needs conversion to driver model
240 This provides a way to looking at the pin state of this device.
241 This mirrors the 'gpio' command and that should be used in preference
245 bool "Tegra20..210 GPIO driver"
248 Support for the GPIO controller contained in NVIDIA Tegra20 through
252 bool "Tegra186 GPIO driver"
255 Support for the GPIO controller contained in NVIDIA Tegra186. This
256 covers both the "main" and "AON" controller instances, even though
257 they have slightly different register layout.
261 depends on ARCH_UNIPHIER
263 Say yes here to support UniPhier GPIOs.
266 bool "Vybrid GPIO driver"
270 Say yes here to support Vybrid vf610 GPIOs.
273 bool "Microchip PIC32 GPIO driver"
274 depends on DM_GPIO && MACH_PIC32
277 Say yes here to support Microchip PIC32 GPIOs.
280 bool "ST STM32 GPIO driver"
281 depends on DM_GPIO && (STM32 || ARCH_STM32MP)
284 Device model driver support for STM32 GPIO controller. It should be
285 usable on many stm32 families like stm32f4/f7/h7 and stm32mp1.
289 bool "SiFive GPIO driver"
292 Device model driver for GPIO controller present in SiFive FU540 SoC. This
293 driver enables GPIO interface on HiFive Unleashed A00 board.
296 bool "Marvell MVEBU GPIO driver"
297 depends on DM_GPIO && ARCH_MVEBU
300 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
303 bool "Zynq GPIO driver"
304 depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL)
307 Supports GPIO access on Zynq SoC.
310 bool "74x164 serial-in/parallel-out 8-bits shift register"
313 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
314 shift registers, such as 74lv165, 74hc595.
315 This driver can be used to provide access to more gpio outputs.
318 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
321 Say yes here to provide access to several register-oriented
322 SMBus I/O expanders, made mostly by NXP or TI. Compatible
325 4 bits: pca9536, pca9537
327 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
328 pca9556, pca9557, pca9574, tca6408, xra1202
330 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
335 40 bits: pca9505, pca9698
337 Now, max 24 bits chips and PCA953X compatible chips are
340 config SPL_DM_PCA953X
341 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports in SPL"
344 Say yes here to provide access to several register-oriented
345 SMBus I/O expanders, made mostly by NXP or TI. Compatible
348 4 bits: pca9536, pca9537
350 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
351 pca9556, pca9557, pca9574, tca6408, xra1202
353 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
358 40 bits: pca9505, pca9698
360 Now, max 24 bits chips and PCA953X compatible chips are
364 bool "Freescale MPC8XXX GPIO driver"
367 This driver supports the built-in GPIO controller of MPC8XXX CPUs.
368 Each GPIO bank is identified by its own entry in the device tree,
371 gpio-controller@fc00 {
373 compatible = "fsl,pq3-gpio";
377 By default, each bank is assumed to have 32 GPIOs, but the ngpios
378 setting is honored, so the number of GPIOs for each bank is
379 configurable to match the actual GPIO count of the SoC (e.g. the
380 32/32/23 banks of the P1022 SoC).
382 Aside from the standard functions of input/output mode, and output
383 value setting, the open-drain feature, which can configure individual
384 GPIOs to work as open-drain outputs, is supported.
387 bool "MediaTek MT7621 GPIO driver"
388 depends on DM_GPIO && SOC_MT7628
391 Say yes here to support MediaTek MT7621 compatible GPIOs.