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 LPC32XX_GPIO 43 bool "LPC32XX GPIO driver" 44 depends on DM 45 default n 46 help 47 Support for the LPC32XX GPIO driver. 48 49config ROCKCHIP_GPIO 50 bool "Rockchip GPIO driver" 51 depends on DM_GPIO 52 help 53 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into 54 a number of banks (different for each SoC type) each with 32 GPIOs. 55 The GPIOs for a device are defined in the device tree with one node 56 for each bank. 57 58config SANDBOX_GPIO 59 bool "Enable sandbox GPIO driver" 60 depends on SANDBOX && DM && DM_GPIO 61 help 62 This driver supports some simulated GPIOs which can be adjusted 63 using 'back door' functions like sandbox_gpio_set_value(). Then the 64 GPIOs can be inspected through the normal get_get_value() 65 interface. The purpose of this is to allow GPIOs to be used as 66 normal in sandbox, perhaps with test code actually driving the 67 behaviour of those GPIOs. 68 69config SANDBOX_GPIO_COUNT 70 int "Number of sandbox GPIOs" 71 depends on SANDBOX_GPIO 72 default 128 73 help 74 The sandbox driver can support any number of GPIOs. Generally these 75 are specified using the device tree. But you can also have a number 76 of 'anonymous' GPIOs that do not belong to any device or bank. 77 Select a suitable value depending on your needs. 78 79config VYBRID_GPIO 80 bool "Vybrid GPIO driver" 81 depends on DM 82 default n 83 help 84 Say yes here to support Vybrid vf610 GPIOs. 85 86endmenu 87