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https://github.com/AsahiLinux/u-boot
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f9db2f16cb
A use case for controlling the boot mode is when the user wants to control the device boot by pushing a button without needing to go in user-space. Add a new backed for reboot mode where GPIOs are used to control the reboot-mode. The driver is able to scan a predefined list of GPIOs and return the magic value. Having the modes associated with the magic value generated based on the GPIO values, allows the reboot mode uclass to select the proper mode. Signed-off-by: Nandor Han <nandor.han@vaisala.com> Reviewed-by: Simon Glass <sjg@chromium.org>
32 lines
671 B
C
32 lines
671 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (c) Vaisala Oyj.
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*/
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#ifndef REBOOT_MODE_REBOOT_MODE_GPIO_H_
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#define REBOOT_MODE_REBOOT_MODE_GPIO_H_
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#include <asm/gpio.h>
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/*
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* In case of initializing the driver statically (using U_BOOT_DEVICE macro),
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* we can use this struct to declare the pins used.
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*/
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#if !CONFIG_IS_ENABLED(OF_CONTROL)
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struct reboot_mode_gpio_config {
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int gpio_dev_offset;
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int gpio_offset;
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int flags;
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};
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#endif
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struct reboot_mode_gpio_platdata {
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struct gpio_desc *gpio_desc;
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#if !CONFIG_IS_ENABLED(OF_CONTROL)
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struct reboot_mode_gpio_config *gpios_config;
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#endif
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int gpio_count;
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};
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#endif /* REBOOT_MODE_REBOOT_MODE_GPIO_H_ */
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