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_BCM6858 || ARCH_BCM63158)
60 This driver supports the GPIO banks on BCM6345 SoCs.
63 bool "DWAPB GPIO driver"
64 depends on DM && DM_GPIO
67 Support for the Designware APB GPIO driver.
70 bool "AT91 PIO GPIO driver"
74 Say yes here to select AT91 PIO GPIO driver. AT91 PIO
75 controller manages up to 32 fully programmable input/output
76 lines. Each I/O line may be dedicated as a general-purpose
77 I/O or be assigned to a function of an embedded peripheral.
78 The assignment to a function of an embedded peripheral is
79 the responsibility of AT91 Pinctrl driver. This driver is
80 responsible for the general-purpose I/O.
83 bool "ATMEL PIO4 driver"
87 Say yes here to support the Atmel PIO4 driver.
88 The PIO4 is new version of Atmel PIO controller, which manages
89 up to 128 fully programmable input/output lines. Each I/O line
90 may be dedicated as a general purpose I/O or be assigned to
91 a function of an embedded peripheral.
94 bool "DA8xx GPIO Driver"
96 This driver supports the DA8xx GPIO controller
98 config INTEL_BROADWELL_GPIO
99 bool "Intel Broadwell GPIO driver"
102 This driver supports Broadwell U devices which have an expanded
103 GPIO feature set. The difference is large enough to merit a separate
104 driver from the common Intel ICH6 driver. It supports a total of
105 95 GPIOs which can be configured from the device tree.
108 bool "Intel generic GPIO driver"
111 Say yes here to select Intel generic GPIO driver. This controller
112 supports recent chips (e.g. Apollo Lake). It permits basic GPIO
113 control including setting pins to input/output. It makes use of its
114 parent pinctrl driver to actually effect changes.
116 config INTEL_ICH6_GPIO
117 bool "Intel ICH6 compatible legacy GPIO driver"
120 Say yes here to select Intel ICH6 compatible legacy GPIO driver.
123 bool "i.MX7ULP RGPIO2P driver"
127 This driver supports i.MX7ULP Rapid GPIO2P controller.
129 config HSDK_CREG_GPIO
130 bool "HSDK CREG GPIO griver"
134 This driver supports CREG GPIOs on Synopsys HSDK SOC.
137 bool "LPC32XX GPIO driver"
141 Support for the LPC32XX GPIO driver.
144 bool "Microsemi Serial GPIO driver"
145 depends on DM_GPIO && SOC_VCOREIII
147 Support for the VCoreIII SoC serial GPIO device. By using a
148 serial interface, the SIO controller significantly extends
149 the number of available GPIOs with a minimum number of
150 additional pins on the device. The primary purpose of the
151 SIO controller is to connect control signals from SFP
152 modules and to act as an LED controller.
155 bool "Qualcomm GPIO driver"
159 Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
160 This controller have single bank (default name "soc"), every
161 gpio has it's own set of registers.
162 Only simple GPIO operations are supported (get/set, change of
163 direction and checking pin function).
169 bool "Freescale/NXP MXC GPIO driver"
171 Support GPIO controllers on various i.MX platforms
174 bool "Freescale/NXP MXS GPIO driver"
176 Support GPIO controllers on i.MX23 and i.MX28 platforms
179 bool "TI OMAP GPIO driver"
180 depends on ARCH_OMAP2PLUS
183 Support GPIO controllers on the TI OMAP3/4/5 and related (such as
184 AM335x/AM43xx/AM57xx/DRA7xx/etc) families of SoCs.
187 bool "Enable the pca953x command"
189 Deprecated: This should be converted to driver model.
191 This command provides access to a pca953x GPIO device using the
192 legacy GPIO interface. Several subcommands are provided which mirror
193 the standard 'gpio' command. It should use that instead.
196 bool "Qualcomm PM8916 PMIC GPIO/keypad driver"
197 depends on DM_GPIO && PMIC_PM8916
199 Support for GPIO pins and power/reset buttons found on
200 Qualcomm PM8916 PMIC.
201 Default name for GPIO bank is "pm8916".
202 Power and reset buttons are placed in "pm8916_key" bank and
203 have gpio numbers 0 and 1 respectively.
206 bool "PCF8575 I2C GPIO Expander driver"
207 depends on DM_GPIO && DM_I2C
209 Support for PCF8575 I2C 16-bit GPIO expander. Most of these
210 chips are from NXP and TI.
213 bool "Renesas RCar GPIO driver"
214 depends on DM_GPIO && ARCH_RMOBILE
216 This driver supports the GPIO banks on Renesas RCar SoCs.
219 bool "Renesas RZ/A1 GPIO driver"
220 depends on DM_GPIO && RZA1
222 This driver supports the GPIO banks on Renesas RZ/A1 R7S72100 SoCs.
225 bool "Rockchip GPIO driver"
228 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
229 a number of banks (different for each SoC type) each with 32 GPIOs.
230 The GPIOs for a device are defined in the device tree with one node
234 bool "Enable sandbox GPIO driver"
235 depends on SANDBOX && DM && DM_GPIO
237 This driver supports some simulated GPIOs which can be adjusted
238 using 'back door' functions like sandbox_gpio_set_value(). Then the
239 GPIOs can be inspected through the normal get_get_value()
240 interface. The purpose of this is to allow GPIOs to be used as
241 normal in sandbox, perhaps with test code actually driving the
242 behaviour of those GPIOs.
244 config SANDBOX_GPIO_COUNT
245 int "Number of sandbox GPIOs"
246 depends on SANDBOX_GPIO
249 The sandbox driver can support any number of GPIOs. Generally these
250 are specified using the device tree. But you can also have a number
251 of 'anonymous' GPIOs that do not belong to any device or bank.
252 Select a suitable value depending on your needs.
255 bool "Allwinner GPIO driver"
256 depends on ARCH_SUNXI
258 Support the GPIO device in Allwinner SoCs.
261 bool "Xilinx GPIO driver"
264 This config enable the Xilinx GPIO driver for Microblaze.
267 bool "tca642x - Command to access tca642x state"
269 DEPRECATED - This needs conversion to driver model
271 This provides a way to looking at the pin state of this device.
272 This mirrors the 'gpio' command and that should be used in preference
276 bool "Tegra20..210 GPIO driver"
279 Support for the GPIO controller contained in NVIDIA Tegra20 through
283 bool "Tegra186 GPIO driver"
286 Support for the GPIO controller contained in NVIDIA Tegra186. This
287 covers both the "main" and "AON" controller instances, even though
288 they have slightly different register layout.
292 depends on ARCH_UNIPHIER
294 Say yes here to support UniPhier GPIOs.
297 bool "Vybrid GPIO driver"
301 Say yes here to support Vybrid vf610 GPIOs.
304 bool "Microchip PIC32 GPIO driver"
305 depends on DM_GPIO && MACH_PIC32
308 Say yes here to support Microchip PIC32 GPIOs.
311 bool "ST STM32 GPIO driver"
312 depends on DM_GPIO && (STM32 || ARCH_STM32MP)
315 Device model driver support for STM32 GPIO controller. It should be
316 usable on many stm32 families like stm32f4/f7/h7 and stm32mp1.
320 bool "SiFive GPIO driver"
323 Device model driver for GPIO controller present in SiFive FU540 SoC. This
324 driver enables GPIO interface on HiFive Unleashed A00 board.
327 bool "Marvell MVEBU GPIO driver"
328 depends on DM_GPIO && ARCH_MVEBU
331 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
334 bool "Zynq GPIO driver"
335 depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL)
338 Supports GPIO access on Zynq SoC.
341 bool "74x164 serial-in/parallel-out 8-bits shift register"
344 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
345 shift registers, such as 74lv165, 74hc595.
346 This driver can be used to provide access to more gpio outputs.
349 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
352 Say yes here to provide access to several register-oriented
353 SMBus I/O expanders, made mostly by NXP or TI. Compatible
356 4 bits: pca9536, pca9537
358 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
359 pca9556, pca9557, pca9574, tca6408, xra1202
361 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
366 40 bits: pca9505, pca9698
368 Now, max 24 bits chips and PCA953X compatible chips are
371 config SPL_DM_PCA953X
372 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports in SPL"
375 Say yes here to provide access to several register-oriented
376 SMBus I/O expanders, made mostly by NXP or TI. Compatible
379 4 bits: pca9536, pca9537
381 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
382 pca9556, pca9557, pca9574, tca6408, xra1202
384 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
389 40 bits: pca9505, pca9698
391 Now, max 24 bits chips and PCA953X compatible chips are
395 bool "Freescale MPC8XXX GPIO driver"
398 This driver supports the built-in GPIO controller of MPC8XXX CPUs.
399 Each GPIO bank is identified by its own entry in the device tree,
402 gpio-controller@fc00 {
404 compatible = "fsl,pq3-gpio";
408 By default, each bank is assumed to have 32 GPIOs, but the ngpios
409 setting is honored, so the number of GPIOs for each bank is
410 configurable to match the actual GPIO count of the SoC (e.g. the
411 32/32/23 banks of the P1022 SoC).
413 Aside from the standard functions of input/output mode, and output
414 value setting, the open-drain feature, which can configure individual
415 GPIOs to work as open-drain outputs, is supported.
418 bool "MediaTek MT7621 GPIO driver"
419 depends on DM_GPIO && SOC_MT7628
422 Say yes here to support MediaTek MT7621 compatible GPIOs.