601 lines
18 KiB
Plaintext
601 lines
18 KiB
Plaintext
#
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# GPIO infrastructure and drivers
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#
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menuconfig GPIO
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bool "GPIO support"
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default y
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help
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Enable support for GPIOs (General-purpose Input/Output) in U-Boot.
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GPIOs allow U-Boot to read the state of an input line (high or
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low) and set the state of an output line. This can be used to
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drive LEDs, control power to various system parts and read user
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input. GPIOs can be useful to enable a 'sign-of-life' LED,
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for example. Enable this option to build the drivers in
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drivers/gpio as part of an U-Boot build.
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if GPIO
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config DM_GPIO
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bool "Enable Driver Model for GPIO drivers"
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depends on DM
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help
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Enable driver model for GPIO access. The standard GPIO
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interface (gpio_get_value(), etc.) is then implemented by
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the GPIO uclass. Drivers provide methods to query the
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particular GPIOs that they provide. The uclass interface
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is defined in include/asm-generic/gpio.h.
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config SPL_DM_GPIO
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bool "Enable Driver Model for GPIO drivers in SPL"
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depends on DM_GPIO && SPL_DM && SPL_GPIO
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default y
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help
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Enable driver model for GPIO access in SPL. The standard GPIO
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interface (gpio_get_value(), etc.) is then implemented by
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the GPIO uclass. Drivers provide methods to query the
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particular GPIOs that they provide. The uclass interface
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is defined in include/asm-generic/gpio.h.
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config TPL_DM_GPIO
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bool "Enable Driver Model for GPIO drivers in TPL"
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depends on DM_GPIO && TPL_DM && TPL_GPIO
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default y
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help
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Enable driver model for GPIO access in TPL. The standard GPIO
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interface (gpio_get_value(), etc.) is then implemented by
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the GPIO uclass. Drivers provide methods to query the
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particular GPIOs that they provide. The uclass interface
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is defined in include/asm-generic/gpio.h.
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config VPL_DM_GPIO
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bool "Enable Driver Model for GPIO drivers in VPL"
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depends on DM_GPIO && VPL_DM && VPL_GPIO
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default y
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help
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Enable driver model for GPIO access in VPL. The standard GPIO
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interface (gpio_get_value(), etc.) is then implemented by
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the GPIO uclass. Drivers provide methods to query the
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particular GPIOs that they provide. The uclass interface
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is defined in include/asm-generic/gpio.h.
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config GPIO_HOG
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bool "Enable GPIO hog support"
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depends on DM_GPIO
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help
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Enable gpio hog support
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The GPIO chip may contain GPIO hog definitions. GPIO hogging
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is a mechanism providing automatic GPIO request and config-
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uration as part of the gpio-controller's driver probe function.
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config SPL_GPIO_HOG
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bool "Enable GPIO hog support in SPL"
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depends on SPL_GPIO_SUPPORT
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help
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Enable gpio hog support in SPL
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The GPIO chip may contain GPIO hog definitions. GPIO hogging
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is a mechanism providing automatic GPIO request and config-
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uration as part of the gpio-controller's driver probe function.
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config DM_GPIO_LOOKUP_LABEL
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bool "Enable searching for gpio labelnames"
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depends on DM_GPIO
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help
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This option enables searching for gpio names in
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the defined gpio labels, if the search for the
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gpio bank name failed. This makes sense if you use
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different gpios on different hardware versions
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for the same functionality in board code.
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config SPL_DM_GPIO_LOOKUP_LABEL
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bool "Enable searching for gpio labelnames"
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depends on DM_GPIO && SPL_DM && SPL_GPIO
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help
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This option enables searching for gpio names in
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the defined gpio labels, if the search for the
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gpio bank name failed. This makes sense if you use
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different gpios on different hardware versions
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for the same functionality in board code.
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config ALTERA_PIO
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bool "Altera PIO driver"
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depends on DM_GPIO
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help
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Select this to enable PIO for Altera devices. Please find
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details on the "Embedded Peripherals IP User Guide" of Altera.
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config BCM2835_GPIO
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bool "BCM2835 GPIO driver"
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depends on DM_GPIO
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config BCM6345_GPIO
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bool "BCM6345 GPIO driver"
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depends on DM_GPIO && (ARCH_BMIPS || ARCH_BCM68360 || \
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ARCH_BCM6858 || ARCH_BCM63158 || \
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ARCH_BCM6753)
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help
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This driver supports the GPIO banks on BCM6345 SoCs.
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config CORTINA_GPIO
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bool "Cortina-Access GPIO driver"
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depends on DM_GPIO && CORTINA_PLATFORM
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help
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Enable support for the GPIO controller in Cortina CAxxxx SoCs.
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This driver supports all CPU ISA variants supported by Cortina
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Access CAxxxx SoCs.
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config DWAPB_GPIO
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bool "DWAPB GPIO driver"
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depends on DM && DM_GPIO
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help
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Support for the Designware APB GPIO driver.
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config AT91_GPIO
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bool "AT91 PIO GPIO driver"
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help
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Say yes here to select AT91 PIO GPIO driver. AT91 PIO
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controller manages up to 32 fully programmable input/output
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lines. Each I/O line may be dedicated as a general-purpose
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I/O or be assigned to a function of an embedded peripheral.
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The assignment to a function of an embedded peripheral is
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the responsibility of AT91 Pinctrl driver. This driver is
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responsible for the general-purpose I/O.
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config ATMEL_PIO4
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bool "ATMEL PIO4 driver"
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depends on DM_GPIO
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help
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Say yes here to support the Atmel PIO4 driver.
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The PIO4 is new version of Atmel PIO controller, which manages
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up to 128 fully programmable input/output lines. Each I/O line
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may be dedicated as a general purpose I/O or be assigned to
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a function of an embedded peripheral.
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config ASPEED_GPIO
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bool "Aspeed GPIO Driver"
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help
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Say yes here to support the Aspeed GPIO driver. The controller
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is found in the AST2400, AST2500 and AST2600 BMC SoCs and
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provides access to over 200 GPIOs on each chip.
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config DA8XX_GPIO
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bool "DA8xx GPIO Driver"
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help
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This driver supports the DA8xx GPIO controller
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config FXL6408_GPIO
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bool "FXL6408 I2C GPIO expander driver"
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depends on DM_GPIO && DM_I2C
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help
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This driver supports the Fairchild FXL6408 device. FXL6408 is a
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fully configurable 8-bit I2C-controlled GPIO expander.
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config INTEL_BROADWELL_GPIO
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bool "Intel Broadwell GPIO driver"
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depends on DM
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help
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This driver supports Broadwell U devices which have an expanded
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GPIO feature set. The difference is large enough to merit a separate
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driver from the common Intel ICH6 driver. It supports a total of
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95 GPIOs which can be configured from the device tree.
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config INTEL_GPIO
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bool "Intel generic GPIO driver"
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depends on DM_GPIO
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help
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Say yes here to select Intel generic GPIO driver. This controller
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supports recent chips (e.g. Apollo Lake). It permits basic GPIO
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control including setting pins to input/output. It makes use of its
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parent pinctrl driver to actually effect changes.
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config INTEL_ICH6_GPIO
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bool "Intel ICH6 compatible legacy GPIO driver"
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depends on DM_GPIO
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help
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Say yes here to select Intel ICH6 compatible legacy GPIO driver.
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config IMX_RGPIO2P
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bool "i.MX7ULP RGPIO2P driver"
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depends on DM
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help
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This driver supports i.MX7ULP Rapid GPIO2P controller.
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config IPROC_GPIO
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bool "Broadcom iProc GPIO driver(without pinconf)"
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help
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The Broadcom iProc based SoCs- Cygnus, NS2, NS3, NSP and Stingray,
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use the same GPIO Controller IP hence this driver could be used
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for all.
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The Broadcom iProc based SoCs have multiple GPIO controllers and only
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the always-ON GPIO controller (CRMU/AON) is supported by this driver.
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config HSDK_CREG_GPIO
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bool "HSDK CREG GPIO griver"
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depends on DM_GPIO
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help
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This driver supports CREG GPIOs on Synopsys HSDK SOC.
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config KIRKWOOD_GPIO
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bool "Kirkwood GPIO driver"
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help
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This drdiver supports GPIOs on Kirkwood platforms
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config LPC32XX_GPIO
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bool "LPC32XX GPIO driver"
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depends on DM
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help
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Support for the LPC32XX GPIO driver.
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config MAX7320_GPIO
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bool "MAX7320 I2C GPIO Expander driver"
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depends on DM_GPIO && DM_I2C
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help
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Support for MAX7320 I2C 8/16-bit GPIO expander.
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original maxim device has 8 push/pull outputs,
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some clones offers 16bit.
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config MCP230XX_GPIO
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bool "MCP230XX GPIO driver"
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depends on DM
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help
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Support for Microchip's MCP230XX I2C connected GPIO devices.
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The following chips are supported:
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- MCP23008
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- MCP23017
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- MCP23018
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config MSCC_SGPIO
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bool "Microsemi Serial GPIO driver"
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depends on DM_GPIO && SOC_VCOREIII
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help
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Support for the VCoreIII SoC serial GPIO device. By using a
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serial interface, the SIO controller significantly extends
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the number of available GPIOs with a minimum number of
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additional pins on the device. The primary purpose of the
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SIO controller is to connect control signals from SFP
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modules and to act as an LED controller.
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config MSM_GPIO
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bool "Qualcomm GPIO driver"
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depends on DM_GPIO
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help
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Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
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This controller have single bank (default name "soc"), every
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gpio has it's own set of registers.
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Only simple GPIO operations are supported (get/set, change of
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direction and checking pin function).
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Supported devices:
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- APQ8016
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- MSM8916
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config MXC_GPIO
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bool "Freescale/NXP MXC GPIO driver"
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help
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Support GPIO controllers on various i.MX platforms
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config MXS_GPIO
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bool "Freescale/NXP MXS GPIO driver"
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help
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Support GPIO controllers on i.MX23 and i.MX28 platforms
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config NPCM_GPIO
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bool "Nuvoton NPCM GPIO driver"
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depends on DM_GPIO
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help
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Support GPIO controllers on Nuvovon NPCM SoCs.
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NPCM7xx/NPCM8xx contain 8 GPIO banks, each bank contains 32 pins.
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config OMAP_GPIO
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bool "TI OMAP GPIO driver"
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depends on ARCH_OMAP2PLUS
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default y
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help
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Support GPIO controllers on the TI OMAP3/4/5 and related (such as
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AM335x/AM43xx/AM57xx/DRA7xx/etc) families of SoCs.
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config CMD_PCA953X
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bool "Enable the pca953x command"
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help
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Deprecated: This should be converted to driver model.
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This command provides access to a pca953x GPIO device using the
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legacy GPIO interface. Several subcommands are provided which mirror
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the standard 'gpio' command. It should use that instead.
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config PM8916_GPIO
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bool "Qualcomm PM8916 PMIC GPIO/keypad driver"
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depends on DM_GPIO && PMIC_PM8916
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help
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Support for GPIO pins and power/reset buttons found on
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Qualcomm PM8916 PMIC.
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Default name for GPIO bank is "pm8916".
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Power and reset buttons are placed in "pm8916_key" bank and
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have gpio numbers 0 and 1 respectively.
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config PCF8575_GPIO
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bool "PCF8575 I2C GPIO Expander driver"
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depends on DM_GPIO && DM_I2C
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help
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Support for PCF8575 I2C 16-bit GPIO expander. Most of these
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chips are from NXP and TI.
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config RCAR_GPIO
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bool "Renesas RCar GPIO driver"
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depends on DM_GPIO && ARCH_RMOBILE
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help
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This driver supports the GPIO banks on Renesas RCar SoCs.
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config RZA1_GPIO
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bool "Renesas RZ/A1 GPIO driver"
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depends on DM_GPIO && RZA1
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help
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This driver supports the GPIO banks on Renesas RZ/A1 R7S72100 SoCs.
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config ROCKCHIP_GPIO
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bool "Rockchip GPIO driver"
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depends on DM_GPIO
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help
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Support GPIO access on Rockchip SoCs. The GPIOs are arranged into
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a number of banks (different for each SoC type) each with 32 GPIOs.
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The GPIOs for a device are defined in the device tree with one node
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for each bank.
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config SANDBOX_GPIO
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bool "Enable sandbox GPIO driver"
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depends on SANDBOX && DM && DM_GPIO
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help
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This driver supports some simulated GPIOs which can be adjusted
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using 'back door' functions like sandbox_gpio_set_value(). Then the
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GPIOs can be inspected through the normal get_get_value()
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interface. The purpose of this is to allow GPIOs to be used as
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normal in sandbox, perhaps with test code actually driving the
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behaviour of those GPIOs.
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config SANDBOX_GPIO_COUNT
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int "Number of sandbox GPIOs"
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depends on SANDBOX_GPIO
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default 128
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help
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The sandbox driver can support any number of GPIOs. Generally these
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are specified using the device tree. But you can also have a number
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of 'anonymous' GPIOs that do not belong to any device or bank.
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Select a suitable value depending on your needs.
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config SUNXI_GPIO
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bool "Allwinner GPIO driver"
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depends on ARCH_SUNXI
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help
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Support the GPIO device in Allwinner SoCs.
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config XILINX_GPIO
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bool "Xilinx GPIO driver"
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depends on DM_GPIO
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help
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This config enable the Xilinx GPIO driver for Microblaze.
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config CMD_TCA642X
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bool "tca642x - Command to access tca642x state"
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help
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DEPRECATED - This needs conversion to driver model
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This provides a way to looking at the pin state of this device.
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This mirrors the 'gpio' command and that should be used in preference
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to custom code.
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config TEGRA_GPIO
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bool "Tegra20..210 GPIO driver"
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depends on DM_GPIO
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help
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Support for the GPIO controller contained in NVIDIA Tegra20 through
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Tegra210.
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config TEGRA186_GPIO
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bool "Tegra186 GPIO driver"
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depends on DM_GPIO
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help
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Support for the GPIO controller contained in NVIDIA Tegra186. This
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covers both the "main" and "AON" controller instances, even though
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they have slightly different register layout.
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config GPIO_UNIPHIER
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bool "UniPhier GPIO"
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depends on ARCH_UNIPHIER
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help
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Say yes here to support UniPhier GPIOs.
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config VYBRID_GPIO
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bool "Vybrid GPIO driver"
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depends on DM
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help
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Say yes here to support Vybrid vf610 GPIOs.
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config PIC32_GPIO
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bool "Microchip PIC32 GPIO driver"
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depends on DM_GPIO && MACH_PIC32
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default y
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help
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Say yes here to support Microchip PIC32 GPIOs.
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config OCTEON_GPIO
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bool "Octeon II/III/TX/TX2 GPIO driver"
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depends on DM_GPIO && PCI && (ARCH_OCTEON || ARCH_OCTEONTX || ARCH_OCTEONTX2)
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default y
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help
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Add support for the Marvell Octeon GPIO driver. This is used with
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various Octeon parts such as Octeon II/III and OcteonTX/TX2.
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Octeon II/III has 32 GPIOs (count defined via DT) and OcteonTX/TX2
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has 64 GPIOs (count defined via internal register).
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config STM32_GPIO
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bool "ST STM32 GPIO driver"
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depends on DM_GPIO && (ARCH_STM32 || ARCH_STM32MP)
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default y
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help
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Device model driver support for STM32 GPIO controller. It should be
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usable on many stm32 families like stm32f4/f7/h7 and stm32mp1.
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Tested on STM32F7.
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config SIFIVE_GPIO
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bool "SiFive GPIO driver"
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depends on DM_GPIO
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help
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Device model driver for GPIO controller present in SiFive FU540 SoC. This
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driver enables GPIO interface on HiFive Unleashed A00 board.
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config MVEBU_GPIO
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bool "Marvell MVEBU GPIO driver"
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depends on DM_GPIO && (ARCH_MVEBU || ARCH_KIRKWOOD)
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default y
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help
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Say yes here to support Marvell MVEBU (Armada XP/38x) GPIOs.
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config ZYNQ_GPIO
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bool "Zynq GPIO driver"
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depends on DM_GPIO
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default y if ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL
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help
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Supports GPIO access on Zynq SoC.
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config DM_74X164
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bool "74x164 serial-in/parallel-out 8-bits shift register"
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depends on DM_GPIO
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help
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Driver for 74x164 compatible serial-in/parallel-out 8-outputs
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shift registers, such as 74lv165, 74hc595.
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This driver can be used to provide access to more gpio outputs.
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config DM_PCA953X
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bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
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depends on DM_GPIO && DM_I2C
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help
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Say yes here to provide access to several register-oriented
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SMBus I/O expanders, made mostly by NXP or TI. Compatible
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models include:
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4 bits: pca9536, pca9537
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8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
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pca9556, pca9557, pca9574, tca6408, xra1202
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16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
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tca6416
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24 bits: tca6424
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40 bits: pca9505, pca9698
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Now, max 24 bits chips and PCA953X compatible chips are
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supported
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config SPL_DM_PCA953X
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bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports in SPL"
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depends on DM_GPIO
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help
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Say yes here to provide access to several register-oriented
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SMBus I/O expanders, made mostly by NXP or TI. Compatible
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models include:
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4 bits: pca9536, pca9537
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8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
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pca9556, pca9557, pca9574, tca6408, xra1202
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16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
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tca6416
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24 bits: tca6424
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40 bits: pca9505, pca9698
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Now, max 24 bits chips and PCA953X compatible chips are
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supported
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config MPC8XXX_GPIO
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bool "Freescale MPC8XXX GPIO driver"
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depends on DM_GPIO
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help
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This driver supports the built-in GPIO controller of MPC8XXX CPUs.
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Each GPIO bank is identified by its own entry in the device tree,
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|
i.e.
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|
|
|
gpio-controller@fc00 {
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|
#gpio-cells = <2>;
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|
compatible = "fsl,pq3-gpio";
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|
reg = <0xfc00 0x100>
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|
}
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|
|
|
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.
|
|
|
|
config MPC83XX_SPISEL_BOOT
|
|
bool "Freescale MPC83XX SPISEL_BOOT driver"
|
|
depends on DM_GPIO && ARCH_MPC830X
|
|
help
|
|
GPIO driver to set/clear dedicated SPISEL_BOOT output on MPC83XX.
|
|
|
|
This pin is typically used as spi chip select to a spi nor flash.
|
|
|
|
config MT7620_GPIO
|
|
bool "MediaTek MT7620 GPIO driver"
|
|
depends on DM_GPIO && SOC_MT7620
|
|
default y
|
|
help
|
|
Device model driver for GPIO controller present in MediaTek MT7620
|
|
and earlier SoCs.
|
|
|
|
config MT7621_GPIO
|
|
bool "MediaTek MT7621 GPIO driver"
|
|
depends on DM_GPIO && SOC_MT7628
|
|
default y
|
|
help
|
|
Say yes here to support MediaTek MT7621 compatible GPIOs.
|
|
|
|
config NX_GPIO
|
|
bool "Nexell GPIO driver"
|
|
depends on DM_GPIO
|
|
help
|
|
Support GPIO access on Nexell 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 NOMADIK_GPIO
|
|
bool "Nomadik GPIO driver"
|
|
depends on DM_GPIO
|
|
help
|
|
Support GPIO access on ST-Ericsson Ux500 SoCs. The GPIOs are arranged
|
|
into a number of banks each with 32 GPIOs. The GPIOs for a device are
|
|
defined in the device tree with one node for each bank.
|
|
|
|
config ZYNQMP_GPIO_MODEPIN
|
|
bool "ZynqMP gpio modepin"
|
|
depends on DM_GPIO
|
|
help
|
|
This config enables the ZynqMP gpio modepin driver. ZynqMP modepin
|
|
driver will set and get the status of PS_MODE pins. These modepins
|
|
are accessed using xilinx firmware. In modepin register, [3:0] bits
|
|
set direction, [7:4] bits read IO, [11:8] bits set/clear IO.
|
|
|
|
config SL28CPLD_GPIO
|
|
bool "Kontron sl28cpld GPIO driver"
|
|
depends on DM_GPIO && SL28CPLD
|
|
help
|
|
Support GPIO access on Kontron sl28cpld board management controllers.
|
|
|
|
config SLG7XL45106_I2C_GPO
|
|
bool "slg7xl45106 i2c gpo expander"
|
|
depends on DM_GPIO
|
|
help
|
|
Support for slg7xl45106 i2c gpo expander. It is an i2c based
|
|
8-bit gpo expander, all gpo lines are controlled by writing
|
|
value into data register.
|
|
|
|
endif
|