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 "Aspeed SGPIO Driver"
163 Say yes here to support the Aspeed serial GPIO driver. The controller
164 is found in the AST2400, AST2500 and AST2600 BMC SoCs and
165 provides access to generate serial GPIO signal.
167 config ASPEED_G7_GPIO
168 bool "Aspeed G7 GPIO Driver"
170 Say yes here to support the Aspeed G7 GPIO driver. The controller
171 is found in the AST2700 BMC SoCs and provides access to over 200
175 bool "DA8xx GPIO Driver"
177 This driver supports the DA8xx GPIO controller
180 bool "FXL6408 I2C GPIO expander driver"
181 depends on DM_GPIO && DM_I2C
183 This driver supports the Fairchild FXL6408 device. FXL6408 is a
184 fully configurable 8-bit I2C-controlled GPIO expander.
187 bool "HI6220 GPIO driver"
190 config INTEL_BROADWELL_GPIO
191 bool "Intel Broadwell GPIO driver"
194 This driver supports Broadwell U devices which have an expanded
195 GPIO feature set. The difference is large enough to merit a separate
196 driver from the common Intel ICH6 driver. It supports a total of
197 95 GPIOs which can be configured from the device tree.
200 bool "Intel generic GPIO driver"
203 Say yes here to select Intel generic GPIO driver. This controller
204 supports recent chips (e.g. Apollo Lake). It permits basic GPIO
205 control including setting pins to input/output. It makes use of its
206 parent pinctrl driver to actually effect changes.
208 config INTEL_ICH6_GPIO
209 bool "Intel ICH6 compatible legacy GPIO driver"
212 Say yes here to select Intel ICH6 compatible legacy GPIO driver.
215 bool "i.MX7ULP RGPIO2P driver"
218 This driver supports i.MX7ULP Rapid GPIO2P controller.
221 bool "Broadcom iProc GPIO driver(without pinconf)"
223 The Broadcom iProc based SoCs- Cygnus, NS2, NS3, NSP and Stingray,
224 use the same GPIO Controller IP hence this driver could be used
227 The Broadcom iProc based SoCs have multiple GPIO controllers and only
228 the always-ON GPIO controller (CRMU/AON) is supported by this driver.
230 config HSDK_CREG_GPIO
231 bool "HSDK CREG GPIO griver"
234 This driver supports CREG GPIOs on Synopsys HSDK SOC.
237 bool "Kirkwood GPIO driver"
239 This drdiver supports GPIOs on Kirkwood platforms
242 bool "LPC32XX GPIO driver"
245 Support for the LPC32XX GPIO driver.
248 bool "MAX7320 I2C GPIO Expander driver"
249 depends on DM_GPIO && DM_I2C
251 Support for MAX7320 I2C 8/16-bit GPIO expander.
252 original maxim device has 8 push/pull outputs,
253 some clones offers 16bit.
256 bool "MAX77663 GPIO cell of PMIC driver"
257 depends on DM_GPIO && DM_PMIC_MAX77663
259 GPIO driver for MAX77663 PMIC from Maxim Semiconductor.
260 MAX77663 PMIC has 8 pins that can be configured as GPIOs
261 and 3 GPIO-like pins dedicated for power/reset buttons
265 bool "MCP230XX GPIO driver"
268 Support for Microchip's MCP230XX I2C connected GPIO devices.
269 The following chips are supported:
278 bool "Microsemi Serial GPIO driver"
279 depends on DM_GPIO && SOC_VCOREIII
281 Support for the VCoreIII SoC serial GPIO device. By using a
282 serial interface, the SIO controller significantly extends
283 the number of available GPIOs with a minimum number of
284 additional pins on the device. The primary purpose of the
285 SIO controller is to connect control signals from SFP
286 modules and to act as an LED controller.
289 bool "Qualcomm GPIO driver"
292 Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
293 This controller have single bank (default name "soc"), every
294 gpio has it's own set of registers.
295 Only simple GPIO operations are supported (get/set, change of
296 direction and checking pin function).
302 bool "Freescale/NXP MXC GPIO driver"
304 Support GPIO controllers on various i.MX platforms
307 bool "Freescale/NXP MXS GPIO driver"
309 Support GPIO controllers on i.MX23 and i.MX28 platforms
312 bool "Nuvoton NPCM GPIO driver"
315 Support GPIO controllers on Nuvovon NPCM SoCs.
316 NPCM7xx/NPCM8xx contain 8 GPIO banks, each bank contains 32 pins.
319 bool "Nuvoton NPCM SGPIO driver"
322 Support Nuvoton BMC NPCM7xx/NPCM8xx sgpio driver support.
323 Nuvoton NPCM SGPIO module is combine serial to parallel IC (HC595)
324 and parallel to serial IC (HC165).
325 BMC can use this driver to increase 64 GPI pins and 64 GPO pins to use.
328 bool "TI OMAP GPIO driver"
329 depends on ARCH_OMAP2PLUS
332 Support GPIO controllers on the TI OMAP3/4/5 and related (such as
333 AM335x/AM43xx/AM57xx/DRA7xx/etc) families of SoCs.
336 bool "Enable the pca953x command"
338 Deprecated: This should be converted to driver model.
340 This command provides access to a pca953x GPIO device using the
341 legacy GPIO interface. Several subcommands are provided which mirror
342 the standard 'gpio' command. It should use that instead.
344 config QCOM_PMIC_GPIO
345 bool "Qualcomm generic PMIC GPIO/keypad driver"
346 depends on DM_GPIO && PMIC_QCOM
349 Support for GPIO pins and power/reset buttons found on
351 The GPIO bank is called "pmic"
354 bool "PCF8575 I2C GPIO Expander driver"
355 depends on DM_GPIO && DM_I2C
357 Support for PCF8575 I2C 16-bit GPIO expander. Most of these
358 chips are from NXP and TI.
361 bool "Renesas R-Car GPIO driver"
362 depends on DM_GPIO && ARCH_RENESAS
364 This driver supports the GPIO banks on Renesas R-Car SoCs.
367 bool "Renesas RZ/A1 GPIO driver"
368 depends on DM_GPIO && RZA1
370 This driver supports the GPIO banks on Renesas RZ/A1 R7S72100 SoCs.
373 bool "Rockchip GPIO driver"
376 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
377 a number of banks (different for each SoC type) each with 32 GPIOs.
378 The GPIOs for a device are defined in the device tree with one node
382 bool "Enable sandbox GPIO driver"
383 depends on SANDBOX && DM && DM_GPIO
385 This driver supports some simulated GPIOs which can be adjusted
386 using 'back door' functions like sandbox_gpio_set_value(). Then the
387 GPIOs can be inspected through the normal get_get_value()
388 interface. The purpose of this is to allow GPIOs to be used as
389 normal in sandbox, perhaps with test code actually driving the
390 behaviour of those GPIOs.
392 config SANDBOX_GPIO_COUNT
393 int "Number of sandbox GPIOs"
394 depends on SANDBOX_GPIO
397 The sandbox driver can support any number of GPIOs. Generally these
398 are specified using the device tree. But you can also have a number
399 of 'anonymous' GPIOs that do not belong to any device or bank.
400 Select a suitable value depending on your needs.
403 bool "Allwinner GPIO driver"
404 depends on ARCH_SUNXI
405 select SPL_STRTO if SPL
407 Support the GPIO device in Allwinner SoCs.
409 config SUNXI_NEW_PINCTRL
411 depends on SUNXI_GPIO
413 The Allwinner D1 and other new SoCs use a different register map
414 for the GPIO block, which we need to know about in the SPL.
417 bool "Xilinx GPIO driver"
420 This config enable the Xilinx GPIO driver for Microblaze.
423 bool "TCA642x legacy GPIO driver"
426 bool "tca642x - Command to access tca642x state"
430 DEPRECATED - This needs conversion to driver model
432 This provides a way to looking at the pin state of this device.
433 This mirrors the 'gpio' command and that should be used in preference
437 bool "Tegra20..210 GPIO driver"
440 Support for the GPIO controller contained in NVIDIA Tegra20 through
444 bool "Tegra186 GPIO driver"
447 Support for the GPIO controller contained in NVIDIA Tegra186. This
448 covers both the "main" and "AON" controller instances, even though
449 they have slightly different register layout.
453 depends on ARCH_UNIPHIER
455 Say yes here to support UniPhier GPIOs.
458 bool "Vybrid GPIO driver"
461 Say yes here to support Vybrid vf610 GPIOs.
464 bool "TI PALMAS series PMICs GPIO"
465 depends on DM_GPIO && PMIC_PALMAS
467 Select this option to enable GPIO driver for the TI PALMAS
471 bool "Microchip PIC32 GPIO driver"
472 depends on DM_GPIO && MACH_PIC32
475 Say yes here to support Microchip PIC32 GPIOs.
478 bool "Octeon II/III/TX/TX2 GPIO driver"
479 depends on DM_GPIO && PCI && (ARCH_OCTEON || ARCH_OCTEONTX || ARCH_OCTEONTX2)
482 Add support for the Marvell Octeon GPIO driver. This is used with
483 various Octeon parts such as Octeon II/III and OcteonTX/TX2.
484 Octeon II/III has 32 GPIOs (count defined via DT) and OcteonTX/TX2
485 has 64 GPIOs (count defined via internal register).
488 bool "ST STM32 GPIO driver"
489 depends on DM_GPIO && (ARCH_STM32 || ARCH_STM32MP)
492 Device model driver support for STM32 GPIO controller. It should be
493 usable on many stm32 families like stm32f4/f7/h7 and stm32mp1.
497 bool "SiFive GPIO driver"
500 Device model driver for GPIO controller present in SiFive FU540 SoC. This
501 driver enables GPIO interface on HiFive Unleashed A00 board.
504 bool "Marvell MVEBU GPIO driver"
505 depends on DM_GPIO && (ARCH_MVEBU || ARCH_KIRKWOOD)
508 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
511 bool "Zynq GPIO driver"
513 default y if ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL || ARCH_VERSAL2
515 Supports GPIO access on Zynq SoC.
518 bool "74x164 serial-in/parallel-out 8-bits shift register"
521 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
522 shift registers, such as 74lv165, 74hc595.
523 This driver can be used to provide access to more gpio outputs.
526 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
527 depends on DM_GPIO && DM_I2C
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
548 config SPL_DM_PCA953X
549 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports in SPL"
550 depends on SPL_DM_GPIO
552 Say yes here to provide access to several register-oriented
553 SMBus I/O expanders, made mostly by NXP or TI. Compatible
556 4 bits: pca9536, pca9537
558 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
559 pca9556, pca9557, pca9574, tca6408, xra1202
561 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
566 40 bits: pca9505, pca9698
568 Now, max 24 bits chips and PCA953X compatible chips are
572 bool "NXP's PCA953X series I2C GPIO (legacy driver)"
573 depends on !DM_PCA953X
576 bool "Freescale MPC8XXX GPIO driver"
579 This driver supports the built-in GPIO controller of MPC8XXX CPUs.
580 Each GPIO bank is identified by its own entry in the device tree,
583 gpio-controller@fc00 {
585 compatible = "fsl,pq3-gpio";
589 By default, each bank is assumed to have 32 GPIOs, but the ngpios
590 setting is honored, so the number of GPIOs for each bank is
591 configurable to match the actual GPIO count of the SoC (e.g. the
592 32/32/23 banks of the P1022 SoC).
594 Aside from the standard functions of input/output mode, and output
595 value setting, the open-drain feature, which can configure individual
596 GPIOs to work as open-drain outputs, is supported.
599 bool "Freescale QUICC ENGINE GPIO driver"
603 This driver supports the QUICC Engine GPIOs of MPC83XX CPUs.
604 Each GPIO bank is identified by its own entry in the device tree,
607 qe_pio_a: gpio-controller@1400 {
608 compatible = "fsl,mpc8323-qe-pario-bank";
614 Each bank has 32 GPIOs.
617 bool "Freescale MPC8XX GPIO driver"
620 This driver supports parallel IO ports from MPC8XX CPUs.
621 Each GPIO bank is identified by its own entry in the device tree.
623 config MPC83XX_SPISEL_BOOT
624 bool "Freescale MPC83XX SPISEL_BOOT driver"
625 depends on DM_GPIO && ARCH_MPC830X
627 GPIO driver to set/clear dedicated SPISEL_BOOT output on MPC83XX.
629 This pin is typically used as spi chip select to a spi nor flash.
632 bool "MediaTek MT7620 GPIO driver"
633 depends on DM_GPIO && SOC_MT7620
636 Device model driver for GPIO controller present in MediaTek MT7620
640 bool "MediaTek MT7621 GPIO driver"
641 depends on DM_GPIO && (SOC_MT7621 || SOC_MT7628)
644 Say yes here to support MediaTek MT7621 compatible GPIOs.
647 bool "Nexell GPIO driver"
650 Support GPIO access on Nexell SoCs. The GPIOs are arranged into
651 a number of banks (different for each SoC type) each with 32 GPIOs.
652 The GPIOs for a device are defined in the device tree with one node
656 bool "Nomadik GPIO driver"
659 Support GPIO access on ST-Ericsson Ux500 SoCs. The GPIOs are arranged
660 into a number of banks each with 32 GPIOs. The GPIOs for a device are
661 defined in the device tree with one node for each bank.
663 config ZYNQMP_GPIO_MODEPIN
664 bool "ZynqMP gpio modepin"
665 depends on DM_GPIO && ZYNQMP_FIRMWARE
667 This config enables the ZynqMP gpio modepin driver. ZynqMP modepin
668 driver will set and get the status of PS_MODE pins. These modepins
669 are accessed using xilinx firmware. In modepin register, [3:0] bits
670 set direction, [7:4] bits read IO, [11:8] bits set/clear IO.
673 bool "Pinmuxed GPIO support for SuperH"
674 depends on RCAR_GEN2 && !PINCTRL_PFC
678 bool "Kontron sl28cpld GPIO driver"
679 depends on DM_GPIO && SL28CPLD
681 Support GPIO access on Kontron sl28cpld board management controllers.
683 config SLG7XL45106_I2C_GPO
684 bool "slg7xl45106 i2c gpo expander"
687 Support for slg7xl45106 i2c gpo expander. It is an i2c based
688 8-bit gpo expander, all gpo lines are controlled by writing
689 value into data register.
692 bool "Faraday Technology FTGPIO010 driver"
695 Support for GPIOs on Faraday Technology's FTGPIO010 controller.
698 bool "ADP5585 GPIO driver"
699 depends on DM_GPIO && DM_I2C
701 Support ADP5585 GPIO expander.
704 bool "Renesas RZ/G2L family GPIO driver"
705 depends on DM_GPIO && PINCTRL_RZG2L
707 Support the gpio functionality of the pin function controller (PFC)
708 on the Renesas RZ/G2L SoC family.
710 config SPL_ADP5585_GPIO
711 bool "ADP5585 GPIO driver in SPL"
712 depends on SPL_DM_GPIO && SPL_I2C
714 Support ADP5585 GPIO expander in SPL.