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https://github.com/brain-hackers/u-boot-brain
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0d832b3221
The Linux kernel has binding for gpio-restart node. This patch is adding basic support without supporting any optional properties. This driver was tested on Microblaze system where gpio is connected to SoC reset logic. Output value is handled via gpios cells values. In gpio_reboot_request() set_value is writing 1 because dm_gpio_set_value() is capable to changing it when it is ACTIVE_LOW. ... if (desc->flags & GPIOD_ACTIVE_LOW) value = !value; ... Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
49 lines
1.2 KiB
Plaintext
49 lines
1.2 KiB
Plaintext
#
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# System reset devices
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#
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menu "System reset device drivers"
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config SYSRESET
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bool "Enable support for system reset drivers"
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depends on DM
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help
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Enable system reset drivers which can be used to reset the CPU or
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board. Each driver can provide a reset method which will be called
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to effect a reset. The uclass will try all available drivers when
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reset_walk() is called.
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if SYSRESET
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config SYSRESET_GPIO
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bool "Enable support for GPIO reset driver"
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select GPIO
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help
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Reset support via GPIO pin connected reset logic. This is used for
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example on Microblaze where reset logic can be controlled via GPIO
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pin which triggers cpu reset.
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config SYSRESET_PSCI
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bool "Enable support for PSCI System Reset"
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depends on ARM_PSCI_FW
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help
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Enable PSCI SYSTEM_RESET function call. To use this, PSCI firmware
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must be running on your system.
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endif
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config SYSRESET_SYSCON
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bool "Enable support for mfd syscon reboot driver"
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select REGMAP
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select SYSCON
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help
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Reboot support for generic SYSCON mapped register reset.
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config SYSRESET_WATCHDOG
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bool "Enable support for watchdog reboot driver"
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select WDT
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help
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Reboot support for generic watchdog reset.
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endmenu
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