1# 2# GPIO infrastructure and drivers 3# 4 5menu "GPIO Support" 6 7config 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 17config 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 24config DWAPB_GPIO 25 bool "DWAPB GPIO driver" 26 depends on DM && DM_GPIO 27 default n 28 help 29 Support for the Designware APB GPIO driver. 30 31config ATMEL_PIO4 32 bool "ATMEL PIO4 driver" 33 depends on DM 34 default n 35 help 36 Say yes here to support the Atmel PIO4 driver. 37 The PIO4 is new version of Atmel PIO controller, which manages 38 up to 128 fully programmable input/output lines. Each I/O line 39 may be dedicated as a general purpose I/O or be assigned to 40 a function of an embedded peripheral. 41 42config INTEL_BROADWELL_GPIO 43 bool "Intel Broadwell GPIO driver" 44 depends on DM 45 help 46 This driver supports Broadwell U devices which have an expanded 47 GPIO feature set. The difference is large enough to merit a separate 48 driver from the common Intel ICH6 driver. It supports a total of 49 95 GPIOs which can be configured from the device tree. 50 51config LPC32XX_GPIO 52 bool "LPC32XX GPIO driver" 53 depends on DM 54 default n 55 help 56 Support for the LPC32XX GPIO driver. 57 58config MSM_GPIO 59 bool "Qualcomm GPIO driver" 60 depends on DM_GPIO 61 default n 62 help 63 Support GPIO controllers on Qualcomm Snapdragon family of SoCs. 64 This controller have single bank (default name "soc"), every 65 gpio has it's own set of registers. 66 Only simple GPIO operations are supported (get/set, change of 67 direction and checking pin function). 68 Supported devices: 69 - APQ8016 70 - MSM8916 71 72config PM8916_GPIO 73 bool "Qualcomm PM8916 PMIC GPIO/keypad driver" 74 depends on DM_GPIO && PMIC_PM8916 75 help 76 Support for GPIO pins and power/reset buttons found on 77 Qualcomm PM8916 PMIC. 78 Default name for GPIO bank is "pm8916". 79 Power and reset buttons are placed in "pm8916_key" bank and 80 have gpio numbers 0 and 1 respectively. 81 82config ROCKCHIP_GPIO 83 bool "Rockchip GPIO driver" 84 depends on DM_GPIO 85 help 86 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into 87 a number of banks (different for each SoC type) each with 32 GPIOs. 88 The GPIOs for a device are defined in the device tree with one node 89 for each bank. 90 91config SANDBOX_GPIO 92 bool "Enable sandbox GPIO driver" 93 depends on SANDBOX && DM && DM_GPIO 94 help 95 This driver supports some simulated GPIOs which can be adjusted 96 using 'back door' functions like sandbox_gpio_set_value(). Then the 97 GPIOs can be inspected through the normal get_get_value() 98 interface. The purpose of this is to allow GPIOs to be used as 99 normal in sandbox, perhaps with test code actually driving the 100 behaviour of those GPIOs. 101 102config SANDBOX_GPIO_COUNT 103 int "Number of sandbox GPIOs" 104 depends on SANDBOX_GPIO 105 default 128 106 help 107 The sandbox driver can support any number of GPIOs. Generally these 108 are specified using the device tree. But you can also have a number 109 of 'anonymous' GPIOs that do not belong to any device or bank. 110 Select a suitable value depending on your needs. 111 112config TEGRA_GPIO 113 bool "Tegra20..210 GPIO driver" 114 depends on DM_GPIO 115 help 116 Support for the GPIO controller contained in NVIDIA Tegra20 through 117 Tegra210. 118 119config GPIO_UNIPHIER 120 bool "UniPhier GPIO" 121 depends on ARCH_UNIPHIER 122 help 123 Say yes here to support UniPhier GPIOs. 124 125config VYBRID_GPIO 126 bool "Vybrid GPIO driver" 127 depends on DM 128 default n 129 help 130 Say yes here to support Vybrid vf610 GPIOs. 131 132config PIC32_GPIO 133 bool "Microchip PIC32 GPIO driver" 134 depends on DM_GPIO && MACH_PIC32 135 default y 136 help 137 Say yes here to support Microchip PIC32 GPIOs. 138 139config MVEBU_GPIO 140 bool "Marvell MVEBU GPIO driver" 141 depends on DM_GPIO && ARCH_MVEBU 142 default y 143 help 144 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs. 145 146config ZYNQ_GPIO 147 bool "Zynq GPIO driver" 148 depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP) 149 default y 150 help 151 Supports GPIO access on Zynq SoC. 152 153config DM_74X164 154 bool "74x164 serial-in/parallel-out 8-bits shift register" 155 depends on DM_GPIO 156 help 157 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 158 shift registers, such as 74lv165, 74hc595. 159 This driver can be used to provide access to more gpio outputs. 160 161config DM_PCA953X 162 bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 163 depends on DM_GPIO 164 help 165 Say yes here to provide access to several register-oriented 166 SMBus I/O expanders, made mostly by NXP or TI. Compatible 167 models include: 168 169 4 bits: pca9536, pca9537 170 171 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 172 pca9556, pca9557, pca9574, tca6408, xra1202 173 174 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 175 tca6416 176 177 24 bits: tca6424 178 179 40 bits: pca9505, pca9698 180 181 Now, max 24 bits chips and PCA953X compatible chips are 182 supported 183endmenu 184