10b11dbf7SMasahiro Yamada# 20b11dbf7SMasahiro Yamada# GPIO infrastructure and drivers 30b11dbf7SMasahiro Yamada# 40b11dbf7SMasahiro Yamada 50b11dbf7SMasahiro Yamadamenu "GPIO Support" 60b11dbf7SMasahiro Yamada 7da333ae7SMasahiro Yamadaconfig DM_GPIO 8da333ae7SMasahiro Yamada bool "Enable Driver Model for GPIO drivers" 9da333ae7SMasahiro Yamada depends on DM 10da333ae7SMasahiro Yamada help 11f94a1bedSSimon Glass Enable driver model for GPIO access. The standard GPIO 12f94a1bedSSimon Glass interface (gpio_get_value(), etc.) is then implemented by 13f94a1bedSSimon Glass the GPIO uclass. Drivers provide methods to query the 14f94a1bedSSimon Glass particular GPIOs that they provide. The uclass interface 15f94a1bedSSimon Glass is defined in include/asm-generic/gpio.h. 16606f7047SAlbert ARIBAUD \(3ADEV\) 17*88d5ecf4SThomas Chouconfig ALTERA_PIO 18*88d5ecf4SThomas Chou bool "Altera PIO driver" 19*88d5ecf4SThomas Chou depends on DM_GPIO 20*88d5ecf4SThomas Chou help 21*88d5ecf4SThomas Chou Select this to enable PIO for Altera devices. Please find 22*88d5ecf4SThomas Chou details on the "Embedded Peripherals IP User Guide" of Altera. 23*88d5ecf4SThomas Chou 24e30a70c2SMarek Vasutconfig DWAPB_GPIO 25e30a70c2SMarek Vasut bool "DWAPB GPIO driver" 26e30a70c2SMarek Vasut depends on DM && DM_GPIO 27e30a70c2SMarek Vasut default n 28e30a70c2SMarek Vasut help 29e30a70c2SMarek Vasut Support for the Designware APB GPIO driver. 30e30a70c2SMarek Vasut 31606f7047SAlbert ARIBAUD \(3ADEV\)config LPC32XX_GPIO 32606f7047SAlbert ARIBAUD \(3ADEV\) bool "LPC32XX GPIO driver" 33606f7047SAlbert ARIBAUD \(3ADEV\) depends on DM 34606f7047SAlbert ARIBAUD \(3ADEV\) default n 35606f7047SAlbert ARIBAUD \(3ADEV\) help 36606f7047SAlbert ARIBAUD \(3ADEV\) Support for the LPC32XX GPIO driver. 37d79c50afSSimon Glass 381f8f7730SSimon Glassconfig ROCKCHIP_GPIO 391f8f7730SSimon Glass bool "Rockchip GPIO driver" 401f8f7730SSimon Glass depends on DM_GPIO 411f8f7730SSimon Glass help 421f8f7730SSimon Glass Support GPIO access on Rockchip SoCs. The GPIOs are arranged into 431f8f7730SSimon Glass a number of banks (different for each SoC type) each with 32 GPIOs. 441f8f7730SSimon Glass The GPIOs for a device are defined in the device tree with one node 451f8f7730SSimon Glass for each bank. 461f8f7730SSimon Glass 47d79c50afSSimon Glassconfig SANDBOX_GPIO 48d79c50afSSimon Glass bool "Enable sandbox GPIO driver" 49d79c50afSSimon Glass depends on SANDBOX && DM && DM_GPIO 50d79c50afSSimon Glass help 51d79c50afSSimon Glass This driver supports some simulated GPIOs which can be adjusted 52d79c50afSSimon Glass using 'back door' functions like sandbox_gpio_set_value(). Then the 53d79c50afSSimon Glass GPIOs can be inspected through the normal get_get_value() 54d79c50afSSimon Glass interface. The purpose of this is to allow GPIOs to be used as 55d79c50afSSimon Glass normal in sandbox, perhaps with test code actually driving the 56d79c50afSSimon Glass behaviour of those GPIOs. 57d79c50afSSimon Glass 58d79c50afSSimon Glassconfig SANDBOX_GPIO_COUNT 59d79c50afSSimon Glass int "Number of sandbox GPIOs" 60d79c50afSSimon Glass depends on SANDBOX_GPIO 61d79c50afSSimon Glass default 128 62d79c50afSSimon Glass help 63d79c50afSSimon Glass The sandbox driver can support any number of GPIOs. Generally these 64d79c50afSSimon Glass are specified using the device tree. But you can also have a number 65d79c50afSSimon Glass of 'anonymous' GPIOs that do not belong to any device or bank. 66d79c50afSSimon Glass Select a suitable value depending on your needs. 67d348a943SBhuvanchandra DV 68d348a943SBhuvanchandra DVconfig VYBRID_GPIO 69d348a943SBhuvanchandra DV bool "Vybrid GPIO driver" 70d348a943SBhuvanchandra DV depends on DM 71d348a943SBhuvanchandra DV default n 72d348a943SBhuvanchandra DV help 73d348a943SBhuvanchandra DV Say yes here to support Vybrid vf610 GPIOs. 740b11dbf7SMasahiro Yamada 750b11dbf7SMasahiro Yamadaendmenu 76