1
2
3
4
5menuconfig GPIO
6 bool "GPIO support"
7 default y
8 help
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.
16
17if GPIO
18
19config DM_GPIO
20 bool "Enable Driver Model for GPIO drivers"
21 depends on DM
22 help
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.
28
29config SPL_DM_GPIO
30 bool "Enable Driver Model for GPIO drivers in SPL"
31 depends on DM_GPIO && SPL_DM && SPL_GPIO
32 default y
33 help
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.
39
40config TPL_DM_GPIO
41 bool "Enable Driver Model for GPIO drivers in TPL"
42 depends on DM_GPIO && TPL_DM && TPL_GPIO
43 default y
44 help
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.
50
51config GPIO_HOG
52 bool "Enable GPIO hog support"
53 depends on DM_GPIO
54 help
55 Enable gpio hog support
56 The GPIO chip may contain GPIO hog definitions. GPIO hogging
57 is a mechanism providing automatic GPIO request and config-
58 uration as part of the gpio-controller's driver probe function.
59
60config DM_GPIO_LOOKUP_LABEL
61 bool "Enable searching for gpio labelnames"
62 depends on DM_GPIO
63 help
64 This option enables searching for gpio names in
65 the defined gpio labels, if the search for the
66 gpio bank name failed. This makes sense if you use
67 different gpios on different hardware versions
68 for the same functionality in board code.
69
70config SPL_DM_GPIO_LOOKUP_LABEL
71 bool "Enable searching for gpio labelnames"
72 depends on DM_GPIO && SPL_DM && SPL_GPIO
73 help
74 This option enables searching for gpio names in
75 the defined gpio labels, if the search for the
76 gpio bank name failed. This makes sense if you use
77 different gpios on different hardware versions
78 for the same functionality in board code.
79
80config ALTERA_PIO
81 bool "Altera PIO driver"
82 depends on DM_GPIO
83 help
84 Select this to enable PIO for Altera devices. Please find
85 details on the "Embedded Peripherals IP User Guide" of Altera.
86
87config BCM6345_GPIO
88 bool "BCM6345 GPIO driver"
89 depends on DM_GPIO && (ARCH_BMIPS || ARCH_BCM68360 || \
90 ARCH_BCM6858 || ARCH_BCM63158)
91 help
92 This driver supports the GPIO banks on BCM6345 SoCs.
93
94config CORTINA_GPIO
95 bool "Cortina-Access GPIO driver"
96 depends on DM_GPIO && CORTINA_PLATFORM
97 help
98 Enable support for the GPIO controller in Cortina CAxxxx SoCs.
99 This driver supports all CPU ISA variants supported by Cortina
100 Access CAxxxx SoCs.
101
102config DWAPB_GPIO
103 bool "DWAPB GPIO driver"
104 depends on DM && DM_GPIO
105 help
106 Support for the Designware APB GPIO driver.
107
108config AT91_GPIO
109 bool "AT91 PIO GPIO driver"
110 help
111 Say yes here to select AT91 PIO GPIO driver. AT91 PIO
112 controller manages up to 32 fully programmable input/output
113 lines. Each I/O line may be dedicated as a general-purpose
114 I/O or be assigned to a function of an embedded peripheral.
115 The assignment to a function of an embedded peripheral is
116 the responsibility of AT91 Pinctrl driver. This driver is
117 responsible for the general-purpose I/O.
118
119config ATMEL_PIO4
120 bool "ATMEL PIO4 driver"
121 depends on DM_GPIO
122 help
123 Say yes here to support the Atmel PIO4 driver.
124 The PIO4 is new version of Atmel PIO controller, which manages
125 up to 128 fully programmable input/output lines. Each I/O line
126 may be dedicated as a general purpose I/O or be assigned to
127 a function of an embedded peripheral.
128
129config DA8XX_GPIO
130 bool "DA8xx GPIO Driver"
131 help
132 This driver supports the DA8xx GPIO controller
133
134config INTEL_BROADWELL_GPIO
135 bool "Intel Broadwell GPIO driver"
136 depends on DM
137 help
138 This driver supports Broadwell U devices which have an expanded
139 GPIO feature set. The difference is large enough to merit a separate
140 driver from the common Intel ICH6 driver. It supports a total of
141 95 GPIOs which can be configured from the device tree.
142
143config INTEL_GPIO
144 bool "Intel generic GPIO driver"
145 depends on DM_GPIO
146 help
147 Say yes here to select Intel generic GPIO driver. This controller
148 supports recent chips (e.g. Apollo Lake). It permits basic GPIO
149 control including setting pins to input/output. It makes use of its
150 parent pinctrl driver to actually effect changes.
151
152config INTEL_ICH6_GPIO
153 bool "Intel ICH6 compatible legacy GPIO driver"
154 depends on DM_GPIO
155 help
156 Say yes here to select Intel ICH6 compatible legacy GPIO driver.
157
158config IMX_RGPIO2P
159 bool "i.MX7ULP RGPIO2P driver"
160 depends on DM
161 help
162 This driver supports i.MX7ULP Rapid GPIO2P controller.
163
164config IPROC_GPIO
165 bool "Broadcom iProc GPIO driver(without pinconf)"
166 help
167 The Broadcom iProc based SoCs- Cygnus, NS2, NS3, NSP and Stingray,
168 use the same GPIO Controller IP hence this driver could be used
169 for all.
170
171 The Broadcom iProc based SoCs have multiple GPIO controllers and only
172 the always-ON GPIO controller (CRMU/AON) is supported by this driver.
173
174config HSDK_CREG_GPIO
175 bool "HSDK CREG GPIO griver"
176 depends on DM_GPIO
177 help
178 This driver supports CREG GPIOs on Synopsys HSDK SOC.
179
180config LPC32XX_GPIO
181 bool "LPC32XX GPIO driver"
182 depends on DM
183 help
184 Support for the LPC32XX GPIO driver.
185
186config MAX7320_GPIO
187 bool "MAX7320 I2C GPIO Expander driver"
188 depends on DM_GPIO && DM_I2C
189 help
190 Support for MAX7320 I2C 8/16-bit GPIO expander.
191 original maxim device has 8 push/pull outputs,
192 some clones offers 16bit.
193
194config MCP230XX_GPIO
195 bool "MCP230XX GPIO driver"
196 depends on DM
197 help
198 Support for Microchip's MCP230XX I2C connected GPIO devices.
199 The following chips are supported:
200 - MCP23008
201 - MCP23017
202 - MCP23018
203
204config MSCC_SGPIO
205 bool "Microsemi Serial GPIO driver"
206 depends on DM_GPIO && SOC_VCOREIII
207 help
208 Support for the VCoreIII SoC serial GPIO device. By using a
209 serial interface, the SIO controller significantly extends
210 the number of available GPIOs with a minimum number of
211 additional pins on the device. The primary purpose of the
212 SIO controller is to connect control signals from SFP
213 modules and to act as an LED controller.
214
215config MSM_GPIO
216 bool "Qualcomm GPIO driver"
217 depends on DM_GPIO
218 help
219 Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
220 This controller have single bank (default name "soc"), every
221 gpio has it's own set of registers.
222 Only simple GPIO operations are supported (get/set, change of
223 direction and checking pin function).
224 Supported devices:
225 - APQ8016
226 - MSM8916
227
228config MXC_GPIO
229 bool "Freescale/NXP MXC GPIO driver"
230 help
231 Support GPIO controllers on various i.MX platforms
232
233config MXS_GPIO
234 bool "Freescale/NXP MXS GPIO driver"
235 help
236 Support GPIO controllers on i.MX23 and i.MX28 platforms
237
238config OMAP_GPIO
239 bool "TI OMAP GPIO driver"
240 depends on ARCH_OMAP2PLUS
241 default y
242 help
243 Support GPIO controllers on the TI OMAP3/4/5 and related (such as
244 AM335x/AM43xx/AM57xx/DRA7xx/etc) families of SoCs.
245
246config CMD_PCA953X
247 bool "Enable the pca953x command"
248 help
249 Deprecated: This should be converted to driver model.
250
251 This command provides access to a pca953x GPIO device using the
252 legacy GPIO interface. Several subcommands are provided which mirror
253 the standard 'gpio' command. It should use that instead.
254
255config PM8916_GPIO
256 bool "Qualcomm PM8916 PMIC GPIO/keypad driver"
257 depends on DM_GPIO && PMIC_PM8916
258 help
259 Support for GPIO pins and power/reset buttons found on
260 Qualcomm PM8916 PMIC.
261 Default name for GPIO bank is "pm8916".
262 Power and reset buttons are placed in "pm8916_key" bank and
263 have gpio numbers 0 and 1 respectively.
264
265config PCF8575_GPIO
266 bool "PCF8575 I2C GPIO Expander driver"
267 depends on DM_GPIO && DM_I2C
268 help
269 Support for PCF8575 I2C 16-bit GPIO expander. Most of these
270 chips are from NXP and TI.
271
272config RCAR_GPIO
273 bool "Renesas RCar GPIO driver"
274 depends on DM_GPIO && ARCH_RMOBILE
275 help
276 This driver supports the GPIO banks on Renesas RCar SoCs.
277
278config RZA1_GPIO
279 bool "Renesas RZ/A1 GPIO driver"
280 depends on DM_GPIO && RZA1
281 help
282 This driver supports the GPIO banks on Renesas RZ/A1 R7S72100 SoCs.
283
284config ROCKCHIP_GPIO
285 bool "Rockchip GPIO driver"
286 depends on DM_GPIO
287 help
288 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
289 a number of banks (different for each SoC type) each with 32 GPIOs.
290 The GPIOs for a device are defined in the device tree with one node
291 for each bank.
292
293config SANDBOX_GPIO
294 bool "Enable sandbox GPIO driver"
295 depends on SANDBOX && DM && DM_GPIO
296 help
297 This driver supports some simulated GPIOs which can be adjusted
298 using 'back door' functions like sandbox_gpio_set_value(). Then the
299 GPIOs can be inspected through the normal get_get_value()
300 interface. The purpose of this is to allow GPIOs to be used as
301 normal in sandbox, perhaps with test code actually driving the
302 behaviour of those GPIOs.
303
304config SANDBOX_GPIO_COUNT
305 int "Number of sandbox GPIOs"
306 depends on SANDBOX_GPIO
307 default 128
308 help
309 The sandbox driver can support any number of GPIOs. Generally these
310 are specified using the device tree. But you can also have a number
311 of 'anonymous' GPIOs that do not belong to any device or bank.
312 Select a suitable value depending on your needs.
313
314config SUNXI_GPIO
315 bool "Allwinner GPIO driver"
316 depends on ARCH_SUNXI
317 help
318 Support the GPIO device in Allwinner SoCs.
319
320config XILINX_GPIO
321 bool "Xilinx GPIO driver"
322 depends on DM_GPIO
323 help
324 This config enable the Xilinx GPIO driver for Microblaze.
325
326config CMD_TCA642X
327 bool "tca642x - Command to access tca642x state"
328 help
329 DEPRECATED - This needs conversion to driver model
330
331 This provides a way to looking at the pin state of this device.
332 This mirrors the 'gpio' command and that should be used in preference
333 to custom code.
334
335config TEGRA_GPIO
336 bool "Tegra20..210 GPIO driver"
337 depends on DM_GPIO
338 help
339 Support for the GPIO controller contained in NVIDIA Tegra20 through
340 Tegra210.
341
342config TEGRA186_GPIO
343 bool "Tegra186 GPIO driver"
344 depends on DM_GPIO
345 help
346 Support for the GPIO controller contained in NVIDIA Tegra186. This
347 covers both the "main" and "AON" controller instances, even though
348 they have slightly different register layout.
349
350config GPIO_UNIPHIER
351 bool "UniPhier GPIO"
352 depends on ARCH_UNIPHIER
353 help
354 Say yes here to support UniPhier GPIOs.
355
356config VYBRID_GPIO
357 bool "Vybrid GPIO driver"
358 depends on DM
359 help
360 Say yes here to support Vybrid vf610 GPIOs.
361
362config PIC32_GPIO
363 bool "Microchip PIC32 GPIO driver"
364 depends on DM_GPIO && MACH_PIC32
365 default y
366 help
367 Say yes here to support Microchip PIC32 GPIOs.
368
369config OCTEON_GPIO
370 bool "Octeon II/III/TX/TX2 GPIO driver"
371 depends on DM_GPIO && PCI && (ARCH_OCTEON || ARCH_OCTEONTX || ARCH_OCTEONTX2)
372 default y
373 help
374 Add support for the Marvell Octeon GPIO driver. This is used with
375 various Octeon parts such as Octeon II/III and OcteonTX/TX2.
376 Octeon II/III has 32 GPIOs (count defined via DT) and OcteonTX/TX2
377 has 64 GPIOs (count defined via internal register).
378
379config STM32_GPIO
380 bool "ST STM32 GPIO driver"
381 depends on DM_GPIO && (ARCH_STM32 || ARCH_STM32MP)
382 default y
383 help
384 Device model driver support for STM32 GPIO controller. It should be
385 usable on many stm32 families like stm32f4/f7/h7 and stm32mp1.
386 Tested on STM32F7.
387
388config SIFIVE_GPIO
389 bool "SiFive GPIO driver"
390 depends on DM_GPIO
391 help
392 Device model driver for GPIO controller present in SiFive FU540 SoC. This
393 driver enables GPIO interface on HiFive Unleashed A00 board.
394
395config MVEBU_GPIO
396 bool "Marvell MVEBU GPIO driver"
397 depends on DM_GPIO && (ARCH_MVEBU || ARCH_KIRKWOOD)
398 default y
399 help
400 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
401
402config ZYNQ_GPIO
403 bool "Zynq GPIO driver"
404 depends on DM_GPIO
405 default y if ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL
406 help
407 Supports GPIO access on Zynq SoC.
408
409config DM_74X164
410 bool "74x164 serial-in/parallel-out 8-bits shift register"
411 depends on DM_GPIO
412 help
413 Driver for 74x164 compatible serial-in/parallel-out 8-outputs
414 shift registers, such as 74lv165, 74hc595.
415 This driver can be used to provide access to more gpio outputs.
416
417config DM_PCA953X
418 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
419 depends on DM_GPIO && DM_I2C
420 help
421 Say yes here to provide access to several register-oriented
422 SMBus I/O expanders, made mostly by NXP or TI. Compatible
423 models include:
424
425 4 bits: pca9536, pca9537
426
427 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
428 pca9556, pca9557, pca9574, tca6408, xra1202
429
430 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
431 tca6416
432
433 24 bits: tca6424
434
435 40 bits: pca9505, pca9698
436
437 Now, max 24 bits chips and PCA953X compatible chips are
438 supported
439
440config SPL_DM_PCA953X
441 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports in SPL"
442 depends on DM_GPIO
443 help
444 Say yes here to provide access to several register-oriented
445 SMBus I/O expanders, made mostly by NXP or TI. Compatible
446 models include:
447
448 4 bits: pca9536, pca9537
449
450 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
451 pca9556, pca9557, pca9574, tca6408, xra1202
452
453 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
454 tca6416
455
456 24 bits: tca6424
457
458 40 bits: pca9505, pca9698
459
460 Now, max 24 bits chips and PCA953X compatible chips are
461 supported
462
463config MPC8XXX_GPIO
464 bool "Freescale MPC8XXX GPIO driver"
465 depends on DM_GPIO
466 help
467 This driver supports the built-in GPIO controller of MPC8XXX CPUs.
468 Each GPIO bank is identified by its own entry in the device tree,
469 i.e.
470
471 gpio-controller@fc00 {
472 #gpio-cells = <2>;
473 compatible = "fsl,pq3-gpio";
474 reg = <0xfc00 0x100>
475 }
476
477 By default, each bank is assumed to have 32 GPIOs, but the ngpios
478 setting is honored, so the number of GPIOs for each bank is
479 configurable to match the actual GPIO count of the SoC (e.g. the
480 32/32/23 banks of the P1022 SoC).
481
482 Aside from the standard functions of input/output mode, and output
483 value setting, the open-drain feature, which can configure individual
484 GPIOs to work as open-drain outputs, is supported.
485
486config MPC83XX_SPISEL_BOOT
487 bool "Freescale MPC83XX SPISEL_BOOT driver"
488 depends on DM_GPIO && ARCH_MPC830X
489 help
490 GPIO driver to set/clear dedicated SPISEL_BOOT output on MPC83XX.
491
492 This pin is typically used as spi chip select to a spi nor flash.
493
494config MT7620_GPIO
495 bool "MediaTek MT7620 GPIO driver"
496 depends on DM_GPIO && SOC_MT7620
497 default y
498 help
499 Device model driver for GPIO controller present in MediaTek MT7620
500 and earlier SoCs.
501
502config MT7621_GPIO
503 bool "MediaTek MT7621 GPIO driver"
504 depends on DM_GPIO && SOC_MT7628
505 default y
506 help
507 Say yes here to support MediaTek MT7621 compatible GPIOs.
508
509config NX_GPIO
510 bool "Nexell GPIO driver"
511 depends on DM_GPIO
512 help
513 Support GPIO access on Nexell SoCs. The GPIOs are arranged into
514 a number of banks (different for each SoC type) each with 32 GPIOs.
515 The GPIOs for a device are defined in the device tree with one node
516 for each bank.
517
518config NOMADIK_GPIO
519 bool "Nomadik GPIO driver"
520 depends on DM_GPIO
521 help
522 Support GPIO access on ST-Ericsson Ux500 SoCs. The GPIOs are arranged
523 into a number of banks each with 32 GPIOs. The GPIOs for a device are
524 defined in the device tree with one node for each bank.
525
526endif
527
