| # |
| # GPIO infrastructure and drivers |
| # |
| |
| menu "GPIO Support" |
| |
| config DM_GPIO |
| bool "Enable Driver Model for GPIO drivers" |
| depends on DM |
| help |
| Enable driver model for GPIO access. The standard GPIO |
| interface (gpio_get_value(), etc.) is then implemented by |
| the GPIO uclass. Drivers provide methods to query the |
| particular GPIOs that they provide. The uclass interface |
| is defined in include/asm-generic/gpio.h. |
| |
| config ALTERA_PIO |
| bool "Altera PIO driver" |
| depends on DM_GPIO |
| help |
| Select this to enable PIO for Altera devices. Please find |
| details on the "Embedded Peripherals IP User Guide" of Altera. |
| |
| config DWAPB_GPIO |
| bool "DWAPB GPIO driver" |
| depends on DM && DM_GPIO |
| default n |
| help |
| Support for the Designware APB GPIO driver. |
| |
| config ATMEL_PIO4 |
| bool "ATMEL PIO4 driver" |
| depends on DM_GPIO |
| default n |
| help |
| Say yes here to support the Atmel PIO4 driver. |
| The PIO4 is new version of Atmel PIO controller, which manages |
| up to 128 fully programmable input/output lines. Each I/O line |
| may be dedicated as a general purpose I/O or be assigned to |
| a function of an embedded peripheral. |
| |
| config INTEL_BROADWELL_GPIO |
| bool "Intel Broadwell GPIO driver" |
| depends on DM |
| help |
| This driver supports Broadwell U devices which have an expanded |
| GPIO feature set. The difference is large enough to merit a separate |
| driver from the common Intel ICH6 driver. It supports a total of |
| 95 GPIOs which can be configured from the device tree. |
| |
| config IMX_RGPIO2P |
| bool "i.MX7ULP RGPIO2P driver" |
| depends on DM |
| default n |
| help |
| This driver supports i.MX7ULP Rapid GPIO2P controller. |
| |
| config LPC32XX_GPIO |
| bool "LPC32XX GPIO driver" |
| depends on DM |
| default n |
| help |
| Support for the LPC32XX GPIO driver. |
| |
| config MSM_GPIO |
| bool "Qualcomm GPIO driver" |
| depends on DM_GPIO |
| default n |
| help |
| Support GPIO controllers on Qualcomm Snapdragon family of SoCs. |
| This controller have single bank (default name "soc"), every |
| gpio has it's own set of registers. |
| Only simple GPIO operations are supported (get/set, change of |
| direction and checking pin function). |
| Supported devices: |
| - APQ8016 |
| - MSM8916 |
| |
| config PM8916_GPIO |
| bool "Qualcomm PM8916 PMIC GPIO/keypad driver" |
| depends on DM_GPIO && PMIC_PM8916 |
| help |
| Support for GPIO pins and power/reset buttons found on |
| Qualcomm PM8916 PMIC. |
| Default name for GPIO bank is "pm8916". |
| Power and reset buttons are placed in "pm8916_key" bank and |
| have gpio numbers 0 and 1 respectively. |
| |
| config PCF8575_GPIO |
| bool "PCF8575 I2C GPIO Expander driver" |
| depends on DM_GPIO && DM_I2C |
| help |
| Support for PCF8575 I2C 16-bit GPIO expander. Most of these |
| chips are from NXP and TI. |
| |
| config ROCKCHIP_GPIO |
| bool "Rockchip GPIO driver" |
| depends on DM_GPIO |
| help |
| Support GPIO access on Rockchip SoCs. The GPIOs are arranged into |
| a number of banks (different for each SoC type) each with 32 GPIOs. |
| The GPIOs for a device are defined in the device tree with one node |
| for each bank. |
| |
| config SANDBOX_GPIO |
| bool "Enable sandbox GPIO driver" |
| depends on SANDBOX && DM && DM_GPIO |
| help |
| This driver supports some simulated GPIOs which can be adjusted |
| using 'back door' functions like sandbox_gpio_set_value(). Then the |
| GPIOs can be inspected through the normal get_get_value() |
| interface. The purpose of this is to allow GPIOs to be used as |
| normal in sandbox, perhaps with test code actually driving the |
| behaviour of those GPIOs. |
| |
| config SANDBOX_GPIO_COUNT |
| int "Number of sandbox GPIOs" |
| depends on SANDBOX_GPIO |
| default 128 |
| help |
| The sandbox driver can support any number of GPIOs. Generally these |
| are specified using the device tree. But you can also have a number |
| of 'anonymous' GPIOs that do not belong to any device or bank. |
| Select a suitable value depending on your needs. |
| |
| config TEGRA_GPIO |
| bool "Tegra20..210 GPIO driver" |
| depends on DM_GPIO |
| help |
| Support for the GPIO controller contained in NVIDIA Tegra20 through |
| Tegra210. |
| |
| config TEGRA186_GPIO |
| bool "Tegra186 GPIO driver" |
| depends on DM_GPIO |
| help |
| Support for the GPIO controller contained in NVIDIA Tegra186. This |
| covers both the "main" and "AON" controller instances, even though |
| they have slightly different register layout. |
| |
| config GPIO_UNIPHIER |
| bool "UniPhier GPIO" |
| depends on ARCH_UNIPHIER |
| help |
| Say yes here to support UniPhier GPIOs. |
| |
| config VYBRID_GPIO |
| bool "Vybrid GPIO driver" |
| depends on DM |
| default n |
| help |
| Say yes here to support Vybrid vf610 GPIOs. |
| |
| config PIC32_GPIO |
| bool "Microchip PIC32 GPIO driver" |
| depends on DM_GPIO && MACH_PIC32 |
| default y |
| help |
| Say yes here to support Microchip PIC32 GPIOs. |
| |
| config MVEBU_GPIO |
| bool "Marvell MVEBU GPIO driver" |
| depends on DM_GPIO && ARCH_MVEBU |
| default y |
| help |
| Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs. |
| |
| config ZYNQ_GPIO |
| bool "Zynq GPIO driver" |
| depends on DM_GPIO && (ARCH_ZYNQ || ARCH_ZYNQMP) |
| default y |
| help |
| Supports GPIO access on Zynq SoC. |
| |
| config DM_74X164 |
| bool "74x164 serial-in/parallel-out 8-bits shift register" |
| depends on DM_GPIO |
| help |
| Driver for 74x164 compatible serial-in/parallel-out 8-outputs |
| shift registers, such as 74lv165, 74hc595. |
| This driver can be used to provide access to more gpio outputs. |
| |
| config DM_PCA953X |
| bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" |
| depends on DM_GPIO |
| help |
| Say yes here to provide access to several register-oriented |
| SMBus I/O expanders, made mostly by NXP or TI. Compatible |
| models include: |
| |
| 4 bits: pca9536, pca9537 |
| |
| 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, |
| pca9556, pca9557, pca9574, tca6408, xra1202 |
| |
| 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, |
| tca6416 |
| |
| 24 bits: tca6424 |
| |
| 40 bits: pca9505, pca9698 |
| |
| Now, max 24 bits chips and PCA953X compatible chips are |
| supported |
| |
| config MPC85XX_GPIO |
| bool "Freescale MPC85XX GPIO driver" |
| depends on DM_GPIO |
| help |
| This driver supports the built-in GPIO controller of MPC85XX CPUs. |
| Each GPIO bank is identified by its own entry in the device tree, |
| i.e. |
| |
| gpio-controller@fc00 { |
| #gpio-cells = <2>; |
| compatible = "fsl,pq3-gpio"; |
| reg = <0xfc00 0x100> |
| } |
| |
| By default, each bank is assumed to have 32 GPIOs, but the ngpios |
| setting is honored, so the number of GPIOs for each bank is |
| configurable to match the actual GPIO count of the SoC (e.g. the |
| 32/32/23 banks of the P1022 SoC). |
| |
| Aside from the standard functions of input/output mode, and output |
| value setting, the open-drain feature, which can configure individual |
| GPIOs to work as open-drain outputs, is supported. |
| |
| The driver has been tested on MPC85XX, but it is likely that other |
| PowerQUICC III devices will work as well. |
| endmenu |
