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 ROCKCHIP_GPIO 73 bool "Rockchip GPIO driver" 74 depends on DM_GPIO 75 help 76 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into 77 a number of banks (different for each SoC type) each with 32 GPIOs. 78 The GPIOs for a device are defined in the device tree with one node 79 for each bank. 80 81config SANDBOX_GPIO 82 bool "Enable sandbox GPIO driver" 83 depends on SANDBOX && DM && DM_GPIO 84 help 85 This driver supports some simulated GPIOs which can be adjusted 86 using 'back door' functions like sandbox_gpio_set_value(). Then the 87 GPIOs can be inspected through the normal get_get_value() 88 interface. The purpose of this is to allow GPIOs to be used as 89 normal in sandbox, perhaps with test code actually driving the 90 behaviour of those GPIOs. 91 92config SANDBOX_GPIO_COUNT 93 int "Number of sandbox GPIOs" 94 depends on SANDBOX_GPIO 95 default 128 96 help 97 The sandbox driver can support any number of GPIOs. Generally these 98 are specified using the device tree. But you can also have a number 99 of 'anonymous' GPIOs that do not belong to any device or bank. 100 Select a suitable value depending on your needs. 101 102config GPIO_UNIPHIER 103 bool "UniPhier GPIO" 104 depends on ARCH_UNIPHIER 105 help 106 Say yes here to support UniPhier GPIOs. 107 108config VYBRID_GPIO 109 bool "Vybrid GPIO driver" 110 depends on DM 111 default n 112 help 113 Say yes here to support Vybrid vf610 GPIOs. 114 115config PIC32_GPIO 116 bool "Microchip PIC32 GPIO driver" 117 depends on DM_GPIO && MACH_PIC32 118 default y 119 help 120 Say yes here to support Microchip PIC32 GPIOs. 121 122config MVEBU_GPIO 123 bool "Marvell MVEBU GPIO driver" 124 depends on DM_GPIO && ARCH_MVEBU 125 default y 126 help 127 Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs. 128 129endmenu 130