1 # 2 # GPIO infrastructure and drivers 3 # 4 5 menu "GPIO Support" 6 7 config DM_GPIO 8 bool "Enable Driver Model for GPIO drivers" 9 depends on DM 10 help 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. 16 17 config ALTERA_PIO 18 bool "Altera PIO driver" 19 depends on DM_GPIO 20 help 21 Select this to enable PIO for Altera devices. Please find 22 details on the "Embedded Peripherals IP User Guide" of Altera. 23 24 config BCM6345_GPIO 25 bool "BCM6345 GPIO driver" 26 depends on DM_GPIO && ARCH_BMIPS 27 help 28 This driver supports the GPIO banks on BCM6345 SoCs. 29 30 config DWAPB_GPIO 31 bool "DWAPB GPIO driver" 32 depends on DM && DM_GPIO 33 default n 34 help 35 Support for the Designware APB GPIO driver. 36 37 config AT91_GPIO 38 bool "AT91 PIO GPIO driver" 39 depends on DM_GPIO 40 default n 41 help 42 Say yes here to select AT91 PIO GPIO driver. AT91 PIO 43 controller manages up to 32 fully programmable input/output 44 lines. Each I/O line may be dedicated as a general-purpose 45 I/O or be assigned to a function of an embedded peripheral. 46 The assignment to a function of an embedded peripheral is 47 the responsibility of AT91 Pinctrl driver. This driver is 48 responsible for the general-purpose I/O. 49 50 config ATMEL_PIO4 51 bool "ATMEL PIO4 driver" 52 depends on DM_GPIO 53 default n 54 help 55 Say yes here to support the Atmel PIO4 driver. 56 The PIO4 is new version of Atmel PIO controller, which manages 57 up to 128 fully programmable input/output lines. Each I/O line 58 may be dedicated as a general purpose I/O or be assigned to 59 a function of an embedded peripheral. 60 61 config INTEL_BROADWELL_GPIO 62 bool "Intel Broadwell GPIO driver" 63 depends on DM 64 help 65 This driver supports Broadwell U devices which have an expanded 66 GPIO feature set. The difference is large enough to merit a separate 67 driver from the common Intel ICH6 driver. It supports a total of 68 95 GPIOs which can be configured from the device tree. 69 70 config INTEL_ICH6_GPIO 71 bool "Intel ICH6 compatible legacy GPIO driver" 72 depends on DM_GPIO 73 help 74 Say yes here to select Intel ICH6 compatible legacy GPIO driver. 75 76 config IMX_RGPIO2P 77 bool "i.MX7ULP RGPIO2P driver" 78 depends on DM 79 default n 80 help 81 This driver supports i.MX7ULP Rapid GPIO2P controller. 82 83 config HSDK_CREG_GPIO 84 bool "HSDK CREG GPIO griver" 85 depends on DM_GPIO 86 default n 87 help 88 This driver supports CREG GPIOs on Synopsys HSDK SOC. 89 90 config LPC32XX_GPIO 91 bool "LPC32XX GPIO driver" 92 depends on DM 93 default n 94 help 95 Support for the LPC32XX GPIO driver. 96 97 config MSM_GPIO 98 bool "Qualcomm GPIO driver" 99 depends on DM_GPIO 100 default n 101 help 102 Support GPIO controllers on Qualcomm Snapdragon family of SoCs. 103 This controller have single bank (default name "soc"), every 104 gpio has it's own set of registers. 105 Only simple GPIO operations are supported (get/set, change of 106 direction and checking pin function). 107 Supported devices: 108 - APQ8016 109 - MSM8916 110 111 config MXC_GPIO 112 bool "Freescale/NXP MXC GPIO driver" 113 help 114 Support GPIO controllers on various i.MX platforms 115 116 config OMAP_GPIO 117 bool "TI OMAP GPIO driver" 118 depends on ARCH_OMAP2PLUS 119 default y 120 help 121 Support GPIO controllers on the TI OMAP3/4/5 and related (such as 122 AM335x/AM43xx/AM57xx/DRA7xx/etc) families of SoCs. 123 124 config CMD_PCA953X 125 bool "Enable the pca953x command" 126 help 127 Deprecated: This should be converted to driver model. 128 129 This command provides access to a pca953x GPIO device using the 130 legacy GPIO interface. Several subcommands are provided which mirror 131 the standard 'gpio' command. It should use that instead. 132 133 config PM8916_GPIO 134 bool "Qualcomm PM8916 PMIC GPIO/keypad driver" 135 depends on DM_GPIO && PMIC_PM8916 136 help 137 Support for GPIO pins and power/reset buttons found on 138 Qualcomm PM8916 PMIC. 139 Default name for GPIO bank is "pm8916". 140 Power and reset buttons are placed in "pm8916_key" bank and 141 have gpio numbers 0 and 1 respectively. 142 143 config PCF8575_GPIO 144 bool "PCF8575 I2C GPIO Expander driver" 145 depends on DM_GPIO && DM_I2C 146 help 147 Support for PCF8575 I2C 16-bit GPIO expander. Most of these 148 chips are from NXP and TI. 149 150 config RCAR_GPIO 151 bool "Renesas RCar GPIO driver" 152 depends on DM_GPIO && ARCH_RMOBILE 153 help 154 This driver supports the GPIO banks on Renesas RCar SoCs. 155 156 config ROCKCHIP_GPIO 157 bool "Rockchip GPIO driver" 158 depends on DM_GPIO 159 help 160 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into 161 a number of banks (different for each SoC type) each with 32 GPIOs. 162 The GPIOs for a device are defined in the device tree with one node 163 for each bank. 164 165 config SANDBOX_GPIO 166 bool "Enable sandbox GPIO driver" 167 depends on SANDBOX && DM && DM_GPIO 168 help 169 This driver supports some simulated GPIOs which can be adjusted 170 using 'back door' functions like sandbox_gpio_set_value(). Then the 171 GPIOs can be inspected through the normal get_get_value() 172 interface. The purpose of this is to allow GPIOs to be used as 173 normal in sandbox, perhaps with test code actually driving the 174 behaviour of those GPIOs. 175 176 config SANDBOX_GPIO_COUNT 177 int "Number of sandbox GPIOs" 178 depends on SANDBOX_GPIO 179 default 128 180 help 181 The sandbox driver can support any number of GPIOs. Generally these 182 are specified using the device tree. But you can also have a number 183 of 'anonymous' GPIOs that do not belong to any device or bank. 184 Select a suitable value depending on your needs. 185 186 config XILINX_GPIO 187 bool "Xilinx GPIO driver" 188 help 189 This config enable the Xilinx GPIO driver for Microblaze. 190 191 config CMD_TCA642X 192 bool "tca642x - Command to access tca642x state" 193 help 194 DEPRECATED - This needs conversion to driver model 195 196 This provides a way to looking at the pin state of this device. 197 This mirrors the 'gpio' command and that should be used in preference 198 to custom code. 199 200 config TEGRA_GPIO 201 bool "Tegra20..210 GPIO driver" 202 depends on DM_GPIO 203 help 204 Support for the GPIO controller contained in NVIDIA Tegra20 through 205 Tegra210. 206 207 config TEGRA186_GPIO 208 bool "Tegra186 GPIO driver" 209 depends on DM_GPIO 210 help 211 Support for the GPIO controller contained in NVIDIA Tegra186. This 212 covers both the "main" and "AON" controller instances, even though 213 they have slightly different register layout. 214 215 config GPIO_UNIPHIER 216 bool "UniPhier GPIO" 217 depends on ARCH_UNIPHIER 218 help 219 Say yes here to support UniPhier GPIOs. 220 221 config VYBRID_GPIO 222 bool "Vybrid GPIO driver" 223 depends on DM 224 default n 225 help 226 Say yes here to support Vybrid vf610 GPIOs. 227 228 config PIC32_GPIO 229 bool "Microchip PIC32 GPIO driver" 230 depends on DM_GPIO && MACH_PIC32 231 default y 232 help 233 Say yes here to support Microchip PIC32 GPIOs. 234 235 config STM32F7_GPIO 236 bool "ST STM32 GPIO driver" 237 depends on DM_GPIO && (STM32 || ARCH_STM32MP) 238 default y 239 help 240 Device model driver support for STM32 GPIO controller. It should be 241 usable on many stm32 families like stm32f4 & stm32H7. 242 Tested on STM32F7. 243 244 config MVEBU_GPIO 245 bool "Marvell MVEBU GPIO driver" 246 depends on DM_GPIO && ARCH_MVEBU 247 default y 248 help 249 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs. 250 251 config ZYNQ_GPIO 252 bool "Zynq GPIO driver" 253 depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP) 254 default y 255 help 256 Supports GPIO access on Zynq SoC. 257 258 config DM_74X164 259 bool "74x164 serial-in/parallel-out 8-bits shift register" 260 depends on DM_GPIO 261 help 262 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 263 shift registers, such as 74lv165, 74hc595. 264 This driver can be used to provide access to more gpio outputs. 265 266 config DM_PCA953X 267 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 268 depends on DM_GPIO 269 help 270 Say yes here to provide access to several register-oriented 271 SMBus I/O expanders, made mostly by NXP or TI. Compatible 272 models include: 273 274 4 bits: pca9536, pca9537 275 276 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 277 pca9556, pca9557, pca9574, tca6408, xra1202 278 279 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 280 tca6416 281 282 24 bits: tca6424 283 284 40 bits: pca9505, pca9698 285 286 Now, max 24 bits chips and PCA953X compatible chips are 287 supported 288 289 config MPC8XXX_GPIO 290 bool "Freescale MPC8XXX GPIO driver" 291 depends on DM_GPIO 292 help 293 This driver supports the built-in GPIO controller of MPC8XXX CPUs. 294 Each GPIO bank is identified by its own entry in the device tree, 295 i.e. 296 297 gpio-controller@fc00 { 298 #gpio-cells = <2>; 299 compatible = "fsl,pq3-gpio"; 300 reg = <0xfc00 0x100> 301 } 302 303 By default, each bank is assumed to have 32 GPIOs, but the ngpios 304 setting is honored, so the number of GPIOs for each bank is 305 configurable to match the actual GPIO count of the SoC (e.g. the 306 32/32/23 banks of the P1022 SoC). 307 308 Aside from the standard functions of input/output mode, and output 309 value setting, the open-drain feature, which can configure individual 310 GPIOs to work as open-drain outputs, is supported. 311 endmenu 312
