2 # GPIO infrastructure and drivers
9 Enable support for GPIOs (General-purpose Input/Output) in U-Boot.
10 GPIOs allow U-Boot to read the state of an input line (high or
11 low) and set the state of an output line. This can be used to
12 drive LEDs, control power to various system parts and read user
13 input. GPIOs can be useful to enable a 'sign-of-life' LED,
14 for example. Enable this option to build the drivers in
15 drivers/gpio as part of an U-Boot build.
20 bool "Enable Driver Model for GPIO drivers"
23 Enable driver model for GPIO access. The standard GPIO
24 interface (gpio_get_value(), etc.) is then implemented by
25 the GPIO uclass. Drivers provide methods to query the
26 particular GPIOs that they provide. The uclass interface
27 is defined in include/asm-generic/gpio.h.
30 bool "Enable Driver Model for GPIO drivers in SPL"
31 depends on DM_GPIO && SPL_DM && SPL_GPIO
34 Enable driver model for GPIO access in SPL. The standard GPIO
35 interface (gpio_get_value(), etc.) is then implemented by
36 the GPIO uclass. Drivers provide methods to query the
37 particular GPIOs that they provide. The uclass interface
38 is defined in include/asm-generic/gpio.h.
41 bool "Enable Driver Model for GPIO drivers in TPL"
42 depends on DM_GPIO && TPL_DM && TPL_GPIO
45 Enable driver model for GPIO access in TPL. The standard GPIO
46 interface (gpio_get_value(), etc.) is then implemented by
47 the GPIO uclass. Drivers provide methods to query the
48 particular GPIOs that they provide. The uclass interface
49 is defined in include/asm-generic/gpio.h.
52 bool "Enable Driver Model for GPIO drivers in VPL"
53 depends on DM_GPIO && VPL_DM && VPL_GPIO
56 Enable driver model for GPIO access in VPL. The standard GPIO
57 interface (gpio_get_value(), etc.) is then implemented by
58 the GPIO uclass. Drivers provide methods to query the
59 particular GPIOs that they provide. The uclass interface
60 is defined in include/asm-generic/gpio.h.
63 bool "Enable GPIO hog support"
66 Enable gpio hog support
67 The GPIO chip may contain GPIO hog definitions. GPIO hogging
68 is a mechanism providing automatic GPIO request and config-
69 uration as part of the gpio-controller's driver probe function.
72 bool "Enable GPIO hog support in SPL"
75 Enable gpio hog support in SPL
76 The GPIO chip may contain GPIO hog definitions. GPIO hogging
77 is a mechanism providing automatic GPIO request and config-
78 uration as part of the gpio-controller's driver probe function.
80 config DM_GPIO_LOOKUP_LABEL
81 bool "Enable searching for gpio labelnames"
84 This option enables searching for gpio names in
85 the defined gpio labels, if the search for the
86 gpio bank name failed. This makes sense if you use
87 different gpios on different hardware versions
88 for the same functionality in board code.
90 config SPL_DM_GPIO_LOOKUP_LABEL
91 bool "Enable searching for gpio labelnames"
92 depends on SPL_DM_GPIO
94 This option enables searching for gpio names in
95 the defined gpio labels, if the search for the
96 gpio bank name failed. This makes sense if you use
97 different gpios on different hardware versions
98 for the same functionality in board code.
101 bool "Altera PIO driver"
104 Select this to enable PIO for Altera devices. Please find
105 details on the "Embedded Peripherals IP User Guide" of Altera.
108 bool "BCM2835 GPIO driver"
112 bool "BCM6345 GPIO driver"
113 depends on DM_GPIO && (ARCH_BMIPS || BCM6856 || \
114 BCM6858 || BCM63158 || BCM6855)
116 This driver supports the GPIO banks on BCM6345 SoCs.
119 bool "Cortina-Access GPIO driver"
120 depends on DM_GPIO && CORTINA_PLATFORM
122 Enable support for the GPIO controller in Cortina CAxxxx SoCs.
123 This driver supports all CPU ISA variants supported by Cortina
127 bool "DWAPB GPIO driver"
128 depends on DM && DM_GPIO
130 Support for the Designware APB GPIO driver.
133 bool "AT91 PIO GPIO driver"
135 Say yes here to select AT91 PIO GPIO driver. AT91 PIO
136 controller manages up to 32 fully programmable input/output
137 lines. Each I/O line may be dedicated as a general-purpose
138 I/O or be assigned to a function of an embedded peripheral.
139 The assignment to a function of an embedded peripheral is
140 the responsibility of AT91 Pinctrl driver. This driver is
141 responsible for the general-purpose I/O.
144 bool "ATMEL PIO4 driver"
147 Say yes here to support the Atmel PIO4 driver.
148 The PIO4 is new version of Atmel PIO controller, which manages
149 up to 128 fully programmable input/output lines. Each I/O line
150 may be dedicated as a general purpose I/O or be assigned to
151 a function of an embedded peripheral.
154 bool "Aspeed GPIO Driver"
156 Say yes here to support the Aspeed GPIO driver. The controller
157 is found in the AST2400, AST2500 and AST2600 BMC SoCs and
158 provides access to over 200 GPIOs on each chip.
161 bool "DA8xx GPIO Driver"
163 This driver supports the DA8xx GPIO controller
166 bool "FXL6408 I2C GPIO expander driver"
167 depends on DM_GPIO && DM_I2C
169 This driver supports the Fairchild FXL6408 device. FXL6408 is a
170 fully configurable 8-bit I2C-controlled GPIO expander.
173 bool "HI6220 GPIO driver"
176 config INTEL_BROADWELL_GPIO
177 bool "Intel Broadwell GPIO driver"
180 This driver supports Broadwell U devices which have an expanded
181 GPIO feature set. The difference is large enough to merit a separate
182 driver from the common Intel ICH6 driver. It supports a total of
183 95 GPIOs which can be configured from the device tree.
186 bool "Intel generic GPIO driver"
189 Say yes here to select Intel generic GPIO driver. This controller
190 supports recent chips (e.g. Apollo Lake). It permits basic GPIO
191 control including setting pins to input/output. It makes use of its
192 parent pinctrl driver to actually effect changes.
194 config INTEL_ICH6_GPIO
195 bool "Intel ICH6 compatible legacy GPIO driver"
198 Say yes here to select Intel ICH6 compatible legacy GPIO driver.
201 bool "i.MX7ULP RGPIO2P driver"
204 This driver supports i.MX7ULP Rapid GPIO2P controller.
207 bool "Broadcom iProc GPIO driver(without pinconf)"
209 The Broadcom iProc based SoCs- Cygnus, NS2, NS3, NSP and Stingray,
210 use the same GPIO Controller IP hence this driver could be used
213 The Broadcom iProc based SoCs have multiple GPIO controllers and only
214 the always-ON GPIO controller (CRMU/AON) is supported by this driver.
216 config HSDK_CREG_GPIO
217 bool "HSDK CREG GPIO griver"
220 This driver supports CREG GPIOs on Synopsys HSDK SOC.
223 bool "Kirkwood GPIO driver"
225 This drdiver supports GPIOs on Kirkwood platforms
228 bool "LPC32XX GPIO driver"
231 Support for the LPC32XX GPIO driver.
234 bool "MAX7320 I2C GPIO Expander driver"
235 depends on DM_GPIO && DM_I2C
237 Support for MAX7320 I2C 8/16-bit GPIO expander.
238 original maxim device has 8 push/pull outputs,
239 some clones offers 16bit.
242 bool "MAX77663 GPIO cell of PMIC driver"
243 depends on DM_GPIO && DM_PMIC_MAX77663
245 GPIO driver for MAX77663 PMIC from Maxim Semiconductor.
246 MAX77663 PMIC has 8 pins that can be configured as GPIOs
247 and 3 GPIO-like pins dedicated for power/reset buttons
251 bool "MCP230XX GPIO driver"
254 Support for Microchip's MCP230XX I2C connected GPIO devices.
255 The following chips are supported:
264 bool "Microsemi Serial GPIO driver"
265 depends on DM_GPIO && SOC_VCOREIII
267 Support for the VCoreIII SoC serial GPIO device. By using a
268 serial interface, the SIO controller significantly extends
269 the number of available GPIOs with a minimum number of
270 additional pins on the device. The primary purpose of the
271 SIO controller is to connect control signals from SFP
272 modules and to act as an LED controller.
275 bool "Qualcomm GPIO driver"
278 Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
279 This controller have single bank (default name "soc"), every
280 gpio has it's own set of registers.
281 Only simple GPIO operations are supported (get/set, change of
282 direction and checking pin function).
288 bool "Freescale/NXP MXC GPIO driver"
290 Support GPIO controllers on various i.MX platforms
293 bool "Freescale/NXP MXS GPIO driver"
295 Support GPIO controllers on i.MX23 and i.MX28 platforms
298 bool "Nuvoton NPCM GPIO driver"
301 Support GPIO controllers on Nuvovon NPCM SoCs.
302 NPCM7xx/NPCM8xx contain 8 GPIO banks, each bank contains 32 pins.
305 bool "TI OMAP GPIO driver"
306 depends on ARCH_OMAP2PLUS
309 Support GPIO controllers on the TI OMAP3/4/5 and related (such as
310 AM335x/AM43xx/AM57xx/DRA7xx/etc) families of SoCs.
313 bool "Enable the pca953x command"
315 Deprecated: This should be converted to driver model.
317 This command provides access to a pca953x GPIO device using the
318 legacy GPIO interface. Several subcommands are provided which mirror
319 the standard 'gpio' command. It should use that instead.
321 config QCOM_PMIC_GPIO
322 bool "Qualcomm generic PMIC GPIO/keypad driver"
323 depends on DM_GPIO && PMIC_QCOM
326 Support for GPIO pins and power/reset buttons found on
328 The GPIO bank is called "pmic"
331 bool "PCF8575 I2C GPIO Expander driver"
332 depends on DM_GPIO && DM_I2C
334 Support for PCF8575 I2C 16-bit GPIO expander. Most of these
335 chips are from NXP and TI.
338 bool "Renesas RCar GPIO driver"
339 depends on DM_GPIO && ARCH_RENESAS
341 This driver supports the GPIO banks on Renesas RCar SoCs.
344 bool "Renesas RZ/A1 GPIO driver"
345 depends on DM_GPIO && RZA1
347 This driver supports the GPIO banks on Renesas RZ/A1 R7S72100 SoCs.
350 bool "Rockchip GPIO driver"
353 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
354 a number of banks (different for each SoC type) each with 32 GPIOs.
355 The GPIOs for a device are defined in the device tree with one node
359 bool "Enable sandbox GPIO driver"
360 depends on SANDBOX && DM && DM_GPIO
362 This driver supports some simulated GPIOs which can be adjusted
363 using 'back door' functions like sandbox_gpio_set_value(). Then the
364 GPIOs can be inspected through the normal get_get_value()
365 interface. The purpose of this is to allow GPIOs to be used as
366 normal in sandbox, perhaps with test code actually driving the
367 behaviour of those GPIOs.
369 config SANDBOX_GPIO_COUNT
370 int "Number of sandbox GPIOs"
371 depends on SANDBOX_GPIO
374 The sandbox driver can support any number of GPIOs. Generally these
375 are specified using the device tree. But you can also have a number
376 of 'anonymous' GPIOs that do not belong to any device or bank.
377 Select a suitable value depending on your needs.
380 bool "Allwinner GPIO driver"
381 depends on ARCH_SUNXI
382 select SPL_STRTO if SPL
384 Support the GPIO device in Allwinner SoCs.
386 config SUNXI_NEW_PINCTRL
388 depends on SUNXI_GPIO
390 The Allwinner D1 and other new SoCs use a different register map
391 for the GPIO block, which we need to know about in the SPL.
394 bool "Xilinx GPIO driver"
397 This config enable the Xilinx GPIO driver for Microblaze.
400 bool "TCA642x legacy GPIO driver"
403 bool "tca642x - Command to access tca642x state"
407 DEPRECATED - This needs conversion to driver model
409 This provides a way to looking at the pin state of this device.
410 This mirrors the 'gpio' command and that should be used in preference
414 bool "Tegra20..210 GPIO driver"
417 Support for the GPIO controller contained in NVIDIA Tegra20 through
421 bool "Tegra186 GPIO driver"
424 Support for the GPIO controller contained in NVIDIA Tegra186. This
425 covers both the "main" and "AON" controller instances, even though
426 they have slightly different register layout.
430 depends on ARCH_UNIPHIER
432 Say yes here to support UniPhier GPIOs.
435 bool "Vybrid GPIO driver"
438 Say yes here to support Vybrid vf610 GPIOs.
441 bool "TI PALMAS series PMICs GPIO"
442 depends on DM_GPIO && PMIC_PALMAS
444 Select this option to enable GPIO driver for the TI PALMAS
448 bool "Microchip PIC32 GPIO driver"
449 depends on DM_GPIO && MACH_PIC32
452 Say yes here to support Microchip PIC32 GPIOs.
455 bool "Octeon II/III/TX/TX2 GPIO driver"
456 depends on DM_GPIO && PCI && (ARCH_OCTEON || ARCH_OCTEONTX || ARCH_OCTEONTX2)
459 Add support for the Marvell Octeon GPIO driver. This is used with
460 various Octeon parts such as Octeon II/III and OcteonTX/TX2.
461 Octeon II/III has 32 GPIOs (count defined via DT) and OcteonTX/TX2
462 has 64 GPIOs (count defined via internal register).
465 bool "ST STM32 GPIO driver"
466 depends on DM_GPIO && (ARCH_STM32 || ARCH_STM32MP)
469 Device model driver support for STM32 GPIO controller. It should be
470 usable on many stm32 families like stm32f4/f7/h7 and stm32mp1.
474 bool "SiFive GPIO driver"
477 Device model driver for GPIO controller present in SiFive FU540 SoC. This
478 driver enables GPIO interface on HiFive Unleashed A00 board.
481 bool "Marvell MVEBU GPIO driver"
482 depends on DM_GPIO && (ARCH_MVEBU || ARCH_KIRKWOOD)
485 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
488 bool "Zynq GPIO driver"
490 default y if ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL || ARCH_VERSAL2
492 Supports GPIO access on Zynq SoC.
495 bool "74x164 serial-in/parallel-out 8-bits shift register"
498 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
499 shift registers, such as 74lv165, 74hc595.
500 This driver can be used to provide access to more gpio outputs.
503 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
504 depends on DM_GPIO && DM_I2C
506 Say yes here to provide access to several register-oriented
507 SMBus I/O expanders, made mostly by NXP or TI. Compatible
510 4 bits: pca9536, pca9537
512 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
513 pca9556, pca9557, pca9574, tca6408, xra1202
515 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
520 40 bits: pca9505, pca9698
522 Now, max 24 bits chips and PCA953X compatible chips are
525 config SPL_DM_PCA953X
526 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports in SPL"
527 depends on SPL_DM_GPIO
529 Say yes here to provide access to several register-oriented
530 SMBus I/O expanders, made mostly by NXP or TI. Compatible
533 4 bits: pca9536, pca9537
535 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
536 pca9556, pca9557, pca9574, tca6408, xra1202
538 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
543 40 bits: pca9505, pca9698
545 Now, max 24 bits chips and PCA953X compatible chips are
549 bool "NXP's PCA953X series I2C GPIO (legacy driver)"
550 depends on !DM_PCA953X
553 bool "Freescale MPC8XXX GPIO driver"
556 This driver supports the built-in GPIO controller of MPC8XXX CPUs.
557 Each GPIO bank is identified by its own entry in the device tree,
560 gpio-controller@fc00 {
562 compatible = "fsl,pq3-gpio";
566 By default, each bank is assumed to have 32 GPIOs, but the ngpios
567 setting is honored, so the number of GPIOs for each bank is
568 configurable to match the actual GPIO count of the SoC (e.g. the
569 32/32/23 banks of the P1022 SoC).
571 Aside from the standard functions of input/output mode, and output
572 value setting, the open-drain feature, which can configure individual
573 GPIOs to work as open-drain outputs, is supported.
576 bool "Freescale QUICC ENGINE GPIO driver"
580 This driver supports the QUICC Engine GPIOs of MPC83XX CPUs.
581 Each GPIO bank is identified by its own entry in the device tree,
584 qe_pio_a: gpio-controller@1400 {
585 compatible = "fsl,mpc8323-qe-pario-bank";
591 Each bank has 32 GPIOs.
594 bool "Freescale MPC8XX GPIO driver"
597 This driver supports parallel IO ports from MPC8XX CPUs.
598 Each GPIO bank is identified by its own entry in the device tree.
600 config MPC83XX_SPISEL_BOOT
601 bool "Freescale MPC83XX SPISEL_BOOT driver"
602 depends on DM_GPIO && ARCH_MPC830X
604 GPIO driver to set/clear dedicated SPISEL_BOOT output on MPC83XX.
606 This pin is typically used as spi chip select to a spi nor flash.
609 bool "MediaTek MT7620 GPIO driver"
610 depends on DM_GPIO && SOC_MT7620
613 Device model driver for GPIO controller present in MediaTek MT7620
617 bool "MediaTek MT7621 GPIO driver"
618 depends on DM_GPIO && (SOC_MT7621 || SOC_MT7628)
621 Say yes here to support MediaTek MT7621 compatible GPIOs.
624 bool "Nexell GPIO driver"
627 Support GPIO access on Nexell SoCs. The GPIOs are arranged into
628 a number of banks (different for each SoC type) each with 32 GPIOs.
629 The GPIOs for a device are defined in the device tree with one node
633 bool "Nomadik GPIO driver"
636 Support GPIO access on ST-Ericsson Ux500 SoCs. The GPIOs are arranged
637 into a number of banks each with 32 GPIOs. The GPIOs for a device are
638 defined in the device tree with one node for each bank.
640 config ZYNQMP_GPIO_MODEPIN
641 bool "ZynqMP gpio modepin"
642 depends on DM_GPIO && ZYNQMP_FIRMWARE
644 This config enables the ZynqMP gpio modepin driver. ZynqMP modepin
645 driver will set and get the status of PS_MODE pins. These modepins
646 are accessed using xilinx firmware. In modepin register, [3:0] bits
647 set direction, [7:4] bits read IO, [11:8] bits set/clear IO.
650 bool "Pinmuxed GPIO support for SuperH"
651 depends on RCAR_GEN2 && !PINCTRL_PFC
655 bool "Kontron sl28cpld GPIO driver"
656 depends on DM_GPIO && SL28CPLD
658 Support GPIO access on Kontron sl28cpld board management controllers.
660 config SLG7XL45106_I2C_GPO
661 bool "slg7xl45106 i2c gpo expander"
664 Support for slg7xl45106 i2c gpo expander. It is an i2c based
665 8-bit gpo expander, all gpo lines are controlled by writing
666 value into data register.
669 bool "Faraday Technology FTGPIO010 driver"
672 Support for GPIOs on Faraday Technology's FTGPIO010 controller.
675 bool "ADP5585 GPIO driver"
676 depends on DM_GPIO && DM_I2C
678 Support ADP5585 GPIO expander.
681 bool "Renesas RZ/G2L family GPIO driver"
682 depends on DM_GPIO && PINCTRL_RZG2L
684 Support the gpio functionality of the pin function controller (PFC)
685 on the Renesas RZ/G2L SoC family.