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 "Cortina-Access GPIO driver"
65 depends on DM_GPIO && CORTINA_PLATFORM
67 Enable support for the GPIO controller in Cortina CAxxxx SoCs.
68 This driver supports all CPU ISA variants supported by Cortina
72 bool "DWAPB GPIO driver"
73 depends on DM && DM_GPIO
76 Support for the Designware APB GPIO driver.
79 bool "AT91 PIO GPIO driver"
82 Say yes here to select AT91 PIO GPIO driver. AT91 PIO
83 controller manages up to 32 fully programmable input/output
84 lines. Each I/O line may be dedicated as a general-purpose
85 I/O or be assigned to a function of an embedded peripheral.
86 The assignment to a function of an embedded peripheral is
87 the responsibility of AT91 Pinctrl driver. This driver is
88 responsible for the general-purpose I/O.
91 bool "ATMEL PIO4 driver"
95 Say yes here to support the Atmel PIO4 driver.
96 The PIO4 is new version of Atmel PIO controller, which manages
97 up to 128 fully programmable input/output lines. Each I/O line
98 may be dedicated as a general purpose I/O or be assigned to
99 a function of an embedded peripheral.
102 bool "DA8xx GPIO Driver"
104 This driver supports the DA8xx GPIO controller
106 config INTEL_BROADWELL_GPIO
107 bool "Intel Broadwell GPIO driver"
110 This driver supports Broadwell U devices which have an expanded
111 GPIO feature set. The difference is large enough to merit a separate
112 driver from the common Intel ICH6 driver. It supports a total of
113 95 GPIOs which can be configured from the device tree.
116 bool "Intel generic GPIO driver"
119 Say yes here to select Intel generic GPIO driver. This controller
120 supports recent chips (e.g. Apollo Lake). It permits basic GPIO
121 control including setting pins to input/output. It makes use of its
122 parent pinctrl driver to actually effect changes.
124 config INTEL_ICH6_GPIO
125 bool "Intel ICH6 compatible legacy GPIO driver"
128 Say yes here to select Intel ICH6 compatible legacy GPIO driver.
131 bool "i.MX7ULP RGPIO2P driver"
135 This driver supports i.MX7ULP Rapid GPIO2P controller.
137 config HSDK_CREG_GPIO
138 bool "HSDK CREG GPIO griver"
142 This driver supports CREG GPIOs on Synopsys HSDK SOC.
145 bool "LPC32XX GPIO driver"
149 Support for the LPC32XX GPIO driver.
152 bool "Microsemi Serial GPIO driver"
153 depends on DM_GPIO && SOC_VCOREIII
155 Support for the VCoreIII SoC serial GPIO device. By using a
156 serial interface, the SIO controller significantly extends
157 the number of available GPIOs with a minimum number of
158 additional pins on the device. The primary purpose of the
159 SIO controller is to connect control signals from SFP
160 modules and to act as an LED controller.
163 bool "Qualcomm GPIO driver"
167 Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
168 This controller have single bank (default name "soc"), every
169 gpio has it's own set of registers.
170 Only simple GPIO operations are supported (get/set, change of
171 direction and checking pin function).
177 bool "Freescale/NXP MXC GPIO driver"
179 Support GPIO controllers on various i.MX platforms
182 bool "Freescale/NXP MXS GPIO driver"
184 Support GPIO controllers on i.MX23 and i.MX28 platforms
187 bool "TI OMAP GPIO driver"
188 depends on ARCH_OMAP2PLUS
191 Support GPIO controllers on the TI OMAP3/4/5 and related (such as
192 AM335x/AM43xx/AM57xx/DRA7xx/etc) families of SoCs.
195 bool "Enable the pca953x command"
197 Deprecated: This should be converted to driver model.
199 This command provides access to a pca953x GPIO device using the
200 legacy GPIO interface. Several subcommands are provided which mirror
201 the standard 'gpio' command. It should use that instead.
204 bool "Qualcomm PM8916 PMIC GPIO/keypad driver"
205 depends on DM_GPIO && PMIC_PM8916
207 Support for GPIO pins and power/reset buttons found on
208 Qualcomm PM8916 PMIC.
209 Default name for GPIO bank is "pm8916".
210 Power and reset buttons are placed in "pm8916_key" bank and
211 have gpio numbers 0 and 1 respectively.
214 bool "PCF8575 I2C GPIO Expander driver"
215 depends on DM_GPIO && DM_I2C
217 Support for PCF8575 I2C 16-bit GPIO expander. Most of these
218 chips are from NXP and TI.
221 bool "Renesas RCar GPIO driver"
222 depends on DM_GPIO && ARCH_RMOBILE
224 This driver supports the GPIO banks on Renesas RCar SoCs.
227 bool "Renesas RZ/A1 GPIO driver"
228 depends on DM_GPIO && RZA1
230 This driver supports the GPIO banks on Renesas RZ/A1 R7S72100 SoCs.
233 bool "Rockchip GPIO driver"
236 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
237 a number of banks (different for each SoC type) each with 32 GPIOs.
238 The GPIOs for a device are defined in the device tree with one node
242 bool "Enable sandbox GPIO driver"
243 depends on SANDBOX && DM && DM_GPIO
245 This driver supports some simulated GPIOs which can be adjusted
246 using 'back door' functions like sandbox_gpio_set_value(). Then the
247 GPIOs can be inspected through the normal get_get_value()
248 interface. The purpose of this is to allow GPIOs to be used as
249 normal in sandbox, perhaps with test code actually driving the
250 behaviour of those GPIOs.
252 config SANDBOX_GPIO_COUNT
253 int "Number of sandbox GPIOs"
254 depends on SANDBOX_GPIO
257 The sandbox driver can support any number of GPIOs. Generally these
258 are specified using the device tree. But you can also have a number
259 of 'anonymous' GPIOs that do not belong to any device or bank.
260 Select a suitable value depending on your needs.
263 bool "Allwinner GPIO driver"
264 depends on ARCH_SUNXI
266 Support the GPIO device in Allwinner SoCs.
269 bool "Xilinx GPIO driver"
272 This config enable the Xilinx GPIO driver for Microblaze.
275 bool "tca642x - Command to access tca642x state"
277 DEPRECATED - This needs conversion to driver model
279 This provides a way to looking at the pin state of this device.
280 This mirrors the 'gpio' command and that should be used in preference
284 bool "Tegra20..210 GPIO driver"
287 Support for the GPIO controller contained in NVIDIA Tegra20 through
291 bool "Tegra186 GPIO driver"
294 Support for the GPIO controller contained in NVIDIA Tegra186. This
295 covers both the "main" and "AON" controller instances, even though
296 they have slightly different register layout.
300 depends on ARCH_UNIPHIER
302 Say yes here to support UniPhier GPIOs.
305 bool "Vybrid GPIO driver"
309 Say yes here to support Vybrid vf610 GPIOs.
312 bool "Microchip PIC32 GPIO driver"
313 depends on DM_GPIO && MACH_PIC32
316 Say yes here to support Microchip PIC32 GPIOs.
319 bool "ST STM32 GPIO driver"
320 depends on DM_GPIO && (ARCH_STM32 || ARCH_STM32MP)
323 Device model driver support for STM32 GPIO controller. It should be
324 usable on many stm32 families like stm32f4/f7/h7 and stm32mp1.
328 bool "SiFive GPIO driver"
331 Device model driver for GPIO controller present in SiFive FU540 SoC. This
332 driver enables GPIO interface on HiFive Unleashed A00 board.
335 bool "Marvell MVEBU GPIO driver"
336 depends on DM_GPIO && ARCH_MVEBU
339 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
342 bool "Zynq GPIO driver"
343 depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL)
346 Supports GPIO access on Zynq SoC.
349 bool "74x164 serial-in/parallel-out 8-bits shift register"
352 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
353 shift registers, such as 74lv165, 74hc595.
354 This driver can be used to provide access to more gpio outputs.
357 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
360 Say yes here to provide access to several register-oriented
361 SMBus I/O expanders, made mostly by NXP or TI. Compatible
364 4 bits: pca9536, pca9537
366 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
367 pca9556, pca9557, pca9574, tca6408, xra1202
369 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
374 40 bits: pca9505, pca9698
376 Now, max 24 bits chips and PCA953X compatible chips are
379 config SPL_DM_PCA953X
380 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports in SPL"
383 Say yes here to provide access to several register-oriented
384 SMBus I/O expanders, made mostly by NXP or TI. Compatible
387 4 bits: pca9536, pca9537
389 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
390 pca9556, pca9557, pca9574, tca6408, xra1202
392 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
397 40 bits: pca9505, pca9698
399 Now, max 24 bits chips and PCA953X compatible chips are
403 bool "Freescale MPC8XXX GPIO driver"
406 This driver supports the built-in GPIO controller of MPC8XXX CPUs.
407 Each GPIO bank is identified by its own entry in the device tree,
410 gpio-controller@fc00 {
412 compatible = "fsl,pq3-gpio";
416 By default, each bank is assumed to have 32 GPIOs, but the ngpios
417 setting is honored, so the number of GPIOs for each bank is
418 configurable to match the actual GPIO count of the SoC (e.g. the
419 32/32/23 banks of the P1022 SoC).
421 Aside from the standard functions of input/output mode, and output
422 value setting, the open-drain feature, which can configure individual
423 GPIOs to work as open-drain outputs, is supported.
425 config MPC83XX_SPISEL_BOOT
426 bool "Freescale MPC83XX SPISEL_BOOT driver"
427 depends on DM_GPIO && ARCH_MPC830X
429 GPIO driver to set/clear dedicated SPISEL_BOOT output on MPC83XX.
431 This pin is typically used as spi chip select to a spi nor flash.
434 bool "MediaTek MT7621 GPIO driver"
435 depends on DM_GPIO && SOC_MT7628
438 Say yes here to support MediaTek MT7621 compatible GPIOs.