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u-boot/drivers/gpio/Kconfig
Klaus H. Sorensen 3fb22bc2f8 gpio/mpc83xx_spisel_boot.c: gpio driver for SPISEL_BOOT signal 
Some SoCs in the mpc83xx family, e.g. mpc8309, have a dedicated spi
chip select, SPISEL_BOOT, that is used by the boot code to boot from
flash.

This chip select will typically be used to select a SPI boot
flash. The SPISEL_BOOT signal is controlled by a single bit in the
SPI_CS register.

Implement a gpio driver for the spi chip select register. This allows a
spi driver capable of using gpios as chip select, to bind a chip select
to SPISEL_BOOT.

It may be a little odd to do this as a GPIO driver, since the signal
is neither GP or I, but it is quite convenient to present it to the
spi driver that way. The alternative it to teach mpc8xxx_spi to handle
the SPISEL_BOOT signal itself (that is how it's done in the linux
kernel, see commit 69b921acae8a)

Signed-off-by: Klaus H. Sorensen <khso@prevas.dk>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2020-03-31 10:06:52 -04:00

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#
# 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 SPL_DM_GPIO
bool "Enable Driver Model for GPIO drivers in SPL"
depends on DM_GPIO && SPL_DM && SPL_GPIO_SUPPORT
default y
help
Enable driver model for GPIO access in SPL. 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 TPL_DM_GPIO
bool "Enable Driver Model for GPIO drivers in TPL"
depends on DM_GPIO && TPL_DM && TPL_GPIO_SUPPORT
default y
help
Enable driver model for GPIO access in TPL. 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 GPIO_HOG
bool "Enable GPIO hog support"
depends on DM_GPIO
default n
help
Enable gpio hog support
The GPIO chip may contain GPIO hog definitions. GPIO hogging
is a mechanism providing automatic GPIO request and config-
uration as part of the gpio-controller's driver probe function.
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 BCM6345_GPIO
bool "BCM6345 GPIO driver"
depends on DM_GPIO && (ARCH_BMIPS || ARCH_BCM68360 || \
ARCH_BCM6858 || ARCH_BCM63158)
help
This driver supports the GPIO banks on BCM6345 SoCs.
config CORTINA_GPIO
bool "Cortina-Access GPIO driver"
depends on DM_GPIO && CORTINA_PLATFORM
help
Enable support for the GPIO controller in Cortina CAxxxx SoCs.
This driver supports all CPU ISA variants supported by Cortina
Access CAxxxx SoCs.
config DWAPB_GPIO
bool "DWAPB GPIO driver"
depends on DM && DM_GPIO
default n
help
Support for the Designware APB GPIO driver.
config AT91_GPIO
bool "AT91 PIO GPIO driver"
depends on DM_GPIO
default n
help
Say yes here to select AT91 PIO GPIO driver. AT91 PIO
controller manages up to 32 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.
The assignment to a function of an embedded peripheral is
the responsibility of AT91 Pinctrl driver. This driver is
responsible for the general-purpose I/O.
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 DA8XX_GPIO
bool "DA8xx GPIO Driver"
help
This driver supports the DA8xx GPIO controller
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 INTEL_GPIO
bool "Intel generic GPIO driver"
depends on DM_GPIO
help
Say yes here to select Intel generic GPIO driver. This controller
supports recent chips (e.g. Apollo Lake). It permits basic GPIO
control including setting pins to input/output. It makes use of its
parent pinctrl driver to actually effect changes.
config INTEL_ICH6_GPIO
bool "Intel ICH6 compatible legacy GPIO driver"
depends on DM_GPIO
help
Say yes here to select Intel ICH6 compatible legacy GPIO driver.
config IMX_RGPIO2P
bool "i.MX7ULP RGPIO2P driver"
depends on DM
default n
help
This driver supports i.MX7ULP Rapid GPIO2P controller.
config HSDK_CREG_GPIO
bool "HSDK CREG GPIO griver"
depends on DM_GPIO
default n
help
This driver supports CREG GPIOs on Synopsys HSDK SOC.
config LPC32XX_GPIO
bool "LPC32XX GPIO driver"
depends on DM
default n
help
Support for the LPC32XX GPIO driver.
config MSCC_SGPIO
bool "Microsemi Serial GPIO driver"
depends on DM_GPIO && SOC_VCOREIII
help
Support for the VCoreIII SoC serial GPIO device. By using a
serial interface, the SIO controller significantly extends
the number of available GPIOs with a minimum number of
additional pins on the device. The primary purpose of the
SIO controller is to connect control signals from SFP
modules and to act as an LED controller.
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 MXC_GPIO
bool "Freescale/NXP MXC GPIO driver"
help
Support GPIO controllers on various i.MX platforms
config MXS_GPIO
bool "Freescale/NXP MXS GPIO driver"
help
Support GPIO controllers on i.MX23 and i.MX28 platforms
config OMAP_GPIO
bool "TI OMAP GPIO driver"
depends on ARCH_OMAP2PLUS
default y
help
Support GPIO controllers on the TI OMAP3/4/5 and related (such as
AM335x/AM43xx/AM57xx/DRA7xx/etc) families of SoCs.
config CMD_PCA953X
bool "Enable the pca953x command"
help
Deprecated: This should be converted to driver model.
This command provides access to a pca953x GPIO device using the
legacy GPIO interface. Several subcommands are provided which mirror
the standard 'gpio' command. It should use that instead.
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 RCAR_GPIO
bool "Renesas RCar GPIO driver"
depends on DM_GPIO && ARCH_RMOBILE
help
This driver supports the GPIO banks on Renesas RCar SoCs.
config RZA1_GPIO
bool "Renesas RZ/A1 GPIO driver"
depends on DM_GPIO && RZA1
help
This driver supports the GPIO banks on Renesas RZ/A1 R7S72100 SoCs.
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 SUNXI_GPIO
bool "Allwinner GPIO driver"
depends on ARCH_SUNXI
help
Support the GPIO device in Allwinner SoCs.
config XILINX_GPIO
bool "Xilinx GPIO driver"
depends on DM_GPIO
help
This config enable the Xilinx GPIO driver for Microblaze.
config CMD_TCA642X
bool "tca642x - Command to access tca642x state"
help
DEPRECATED - This needs conversion to driver model
This provides a way to looking at the pin state of this device.
This mirrors the 'gpio' command and that should be used in preference
to custom code.
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 STM32_GPIO
bool "ST STM32 GPIO driver"
depends on DM_GPIO && (STM32 || ARCH_STM32MP)
default y
help
Device model driver support for STM32 GPIO controller. It should be
usable on many stm32 families like stm32f4/f7/h7 and stm32mp1.
Tested on STM32F7.
config SIFIVE_GPIO
bool "SiFive GPIO driver"
depends on DM_GPIO
help
Device model driver for GPIO controller present in SiFive FU540 SoC. This
driver enables GPIO interface on HiFive Unleashed A00 board.
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 || ARCH_VERSAL)
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 SPL_DM_PCA953X
bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports in SPL"
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 MPC8XXX_GPIO
bool "Freescale MPC8XXX GPIO driver"
depends on DM_GPIO
help
This driver supports the built-in GPIO controller of MPC8XXX 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.
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 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.
endmenu
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