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 Driver Model for GPIO drivers in SPL"
19 depends on DM_GPIO && SPL_DM && SPL_GPIO_SUPPORT
22 Enable driver model for GPIO access in SPL. The standard GPIO
23 interface (gpio_get_value(), etc.) is then implemented by
24 the GPIO uclass. Drivers provide methods to query the
25 particular GPIOs that they provide. The uclass interface
26 is defined in include/asm-generic/gpio.h.
29 bool "Enable Driver Model for GPIO drivers in TPL"
30 depends on DM_GPIO && TPL_DM && TPL_GPIO_SUPPORT
33 Enable driver model for GPIO access in TPL. The standard GPIO
34 interface (gpio_get_value(), etc.) is then implemented by
35 the GPIO uclass. Drivers provide methods to query the
36 particular GPIOs that they provide. The uclass interface
37 is defined in include/asm-generic/gpio.h.
40 bool "Enable GPIO hog support"
44 Enable gpio hog support
45 The GPIO chip may contain GPIO hog definitions. GPIO hogging
46 is a mechanism providing automatic GPIO request and config-
47 uration as part of the gpio-controller's driver probe function.
50 bool "Altera PIO driver"
53 Select this to enable PIO for Altera devices. Please find
54 details on the "Embedded Peripherals IP User Guide" of Altera.
57 bool "BCM6345 GPIO driver"
58 depends on DM_GPIO && (ARCH_BMIPS || ARCH_BCM68360 || \
59 ARCH_BCM6858 || ARCH_BCM63158)
61 This driver supports the GPIO banks on BCM6345 SoCs.
64 bool "DWAPB GPIO driver"
65 depends on DM && DM_GPIO
68 Support for the Designware APB GPIO driver.
71 bool "AT91 PIO GPIO driver"
75 Say yes here to select AT91 PIO GPIO driver. AT91 PIO
76 controller manages up to 32 fully programmable input/output
77 lines. Each I/O line may be dedicated as a general-purpose
78 I/O or be assigned to a function of an embedded peripheral.
79 The assignment to a function of an embedded peripheral is
80 the responsibility of AT91 Pinctrl driver. This driver is
81 responsible for the general-purpose I/O.
84 bool "ATMEL PIO4 driver"
88 Say yes here to support the Atmel PIO4 driver.
89 The PIO4 is new version of Atmel PIO controller, which manages
90 up to 128 fully programmable input/output lines. Each I/O line
91 may be dedicated as a general purpose I/O or be assigned to
92 a function of an embedded peripheral.
95 bool "DA8xx GPIO Driver"
97 This driver supports the DA8xx GPIO controller
99 config INTEL_BROADWELL_GPIO
100 bool "Intel Broadwell GPIO driver"
103 This driver supports Broadwell U devices which have an expanded
104 GPIO feature set. The difference is large enough to merit a separate
105 driver from the common Intel ICH6 driver. It supports a total of
106 95 GPIOs which can be configured from the device tree.
109 bool "Intel generic GPIO driver"
112 Say yes here to select Intel generic GPIO driver. This controller
113 supports recent chips (e.g. Apollo Lake). It permits basic GPIO
114 control including setting pins to input/output. It makes use of its
115 parent pinctrl driver to actually effect changes.
117 config INTEL_ICH6_GPIO
118 bool "Intel ICH6 compatible legacy GPIO driver"
121 Say yes here to select Intel ICH6 compatible legacy GPIO driver.
124 bool "i.MX7ULP RGPIO2P driver"
128 This driver supports i.MX7ULP Rapid GPIO2P controller.
130 config HSDK_CREG_GPIO
131 bool "HSDK CREG GPIO griver"
135 This driver supports CREG GPIOs on Synopsys HSDK SOC.
138 bool "LPC32XX GPIO driver"
142 Support for the LPC32XX GPIO driver.
145 bool "Microsemi Serial GPIO driver"
146 depends on DM_GPIO && SOC_VCOREIII
148 Support for the VCoreIII SoC serial GPIO device. By using a
149 serial interface, the SIO controller significantly extends
150 the number of available GPIOs with a minimum number of
151 additional pins on the device. The primary purpose of the
152 SIO controller is to connect control signals from SFP
153 modules and to act as an LED controller.
156 bool "Qualcomm GPIO driver"
160 Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
161 This controller have single bank (default name "soc"), every
162 gpio has it's own set of registers.
163 Only simple GPIO operations are supported (get/set, change of
164 direction and checking pin function).
170 bool "Freescale/NXP MXC GPIO driver"
172 Support GPIO controllers on various i.MX platforms
175 bool "Freescale/NXP MXS GPIO driver"
177 Support GPIO controllers on i.MX23 and i.MX28 platforms
180 bool "TI OMAP GPIO driver"
181 depends on ARCH_OMAP2PLUS
184 Support GPIO controllers on the TI OMAP3/4/5 and related (such as
185 AM335x/AM43xx/AM57xx/DRA7xx/etc) families of SoCs.
188 bool "Enable the pca953x command"
190 Deprecated: This should be converted to driver model.
192 This command provides access to a pca953x GPIO device using the
193 legacy GPIO interface. Several subcommands are provided which mirror
194 the standard 'gpio' command. It should use that instead.
197 bool "Qualcomm PM8916 PMIC GPIO/keypad driver"
198 depends on DM_GPIO && PMIC_PM8916
200 Support for GPIO pins and power/reset buttons found on
201 Qualcomm PM8916 PMIC.
202 Default name for GPIO bank is "pm8916".
203 Power and reset buttons are placed in "pm8916_key" bank and
204 have gpio numbers 0 and 1 respectively.
207 bool "PCF8575 I2C GPIO Expander driver"
208 depends on DM_GPIO && DM_I2C
210 Support for PCF8575 I2C 16-bit GPIO expander. Most of these
211 chips are from NXP and TI.
214 bool "Renesas RCar GPIO driver"
215 depends on DM_GPIO && ARCH_RMOBILE
217 This driver supports the GPIO banks on Renesas RCar SoCs.
220 bool "Renesas RZ/A1 GPIO driver"
221 depends on DM_GPIO && RZA1
223 This driver supports the GPIO banks on Renesas RZ/A1 R7S72100 SoCs.
226 bool "Rockchip GPIO driver"
229 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
230 a number of banks (different for each SoC type) each with 32 GPIOs.
231 The GPIOs for a device are defined in the device tree with one node
235 bool "Enable sandbox GPIO driver"
236 depends on SANDBOX && DM && DM_GPIO
238 This driver supports some simulated GPIOs which can be adjusted
239 using 'back door' functions like sandbox_gpio_set_value(). Then the
240 GPIOs can be inspected through the normal get_get_value()
241 interface. The purpose of this is to allow GPIOs to be used as
242 normal in sandbox, perhaps with test code actually driving the
243 behaviour of those GPIOs.
245 config SANDBOX_GPIO_COUNT
246 int "Number of sandbox GPIOs"
247 depends on SANDBOX_GPIO
250 The sandbox driver can support any number of GPIOs. Generally these
251 are specified using the device tree. But you can also have a number
252 of 'anonymous' GPIOs that do not belong to any device or bank.
253 Select a suitable value depending on your needs.
256 bool "Allwinner GPIO driver"
257 depends on ARCH_SUNXI
259 Support the GPIO device in Allwinner SoCs.
262 bool "Xilinx GPIO driver"
265 This config enable the Xilinx GPIO driver for Microblaze.
268 bool "tca642x - Command to access tca642x state"
270 DEPRECATED - This needs conversion to driver model
272 This provides a way to looking at the pin state of this device.
273 This mirrors the 'gpio' command and that should be used in preference
277 bool "Tegra20..210 GPIO driver"
280 Support for the GPIO controller contained in NVIDIA Tegra20 through
284 bool "Tegra186 GPIO driver"
287 Support for the GPIO controller contained in NVIDIA Tegra186. This
288 covers both the "main" and "AON" controller instances, even though
289 they have slightly different register layout.
293 depends on ARCH_UNIPHIER
295 Say yes here to support UniPhier GPIOs.
298 bool "Vybrid GPIO driver"
302 Say yes here to support Vybrid vf610 GPIOs.
305 bool "Microchip PIC32 GPIO driver"
306 depends on DM_GPIO && MACH_PIC32
309 Say yes here to support Microchip PIC32 GPIOs.
312 bool "ST STM32 GPIO driver"
313 depends on DM_GPIO && (STM32 || ARCH_STM32MP)
316 Device model driver support for STM32 GPIO controller. It should be
317 usable on many stm32 families like stm32f4/f7/h7 and stm32mp1.
321 bool "SiFive GPIO driver"
324 Device model driver for GPIO controller present in SiFive FU540 SoC. This
325 driver enables GPIO interface on HiFive Unleashed A00 board.
328 bool "Marvell MVEBU GPIO driver"
329 depends on DM_GPIO && ARCH_MVEBU
332 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
335 bool "Zynq GPIO driver"
336 depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL)
339 Supports GPIO access on Zynq SoC.
342 bool "74x164 serial-in/parallel-out 8-bits shift register"
345 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
346 shift registers, such as 74lv165, 74hc595.
347 This driver can be used to provide access to more gpio outputs.
350 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
353 Say yes here to provide access to several register-oriented
354 SMBus I/O expanders, made mostly by NXP or TI. Compatible
357 4 bits: pca9536, pca9537
359 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
360 pca9556, pca9557, pca9574, tca6408, xra1202
362 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
367 40 bits: pca9505, pca9698
369 Now, max 24 bits chips and PCA953X compatible chips are
372 config SPL_DM_PCA953X
373 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports in SPL"
376 Say yes here to provide access to several register-oriented
377 SMBus I/O expanders, made mostly by NXP or TI. Compatible
380 4 bits: pca9536, pca9537
382 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
383 pca9556, pca9557, pca9574, tca6408, xra1202
385 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
390 40 bits: pca9505, pca9698
392 Now, max 24 bits chips and PCA953X compatible chips are
396 bool "Freescale MPC8XXX GPIO driver"
399 This driver supports the built-in GPIO controller of MPC8XXX CPUs.
400 Each GPIO bank is identified by its own entry in the device tree,
403 gpio-controller@fc00 {
405 compatible = "fsl,pq3-gpio";
409 By default, each bank is assumed to have 32 GPIOs, but the ngpios
410 setting is honored, so the number of GPIOs for each bank is
411 configurable to match the actual GPIO count of the SoC (e.g. the
412 32/32/23 banks of the P1022 SoC).
414 Aside from the standard functions of input/output mode, and output
415 value setting, the open-drain feature, which can configure individual
416 GPIOs to work as open-drain outputs, is supported.
419 bool "MediaTek MT7621 GPIO driver"
420 depends on DM_GPIO && SOC_MT7628
423 Say yes here to support MediaTek MT7621 compatible GPIOs.