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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>
27 lines
623 B
Text
27 lines
623 B
Text
#
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# 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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menu "Reboot Mode Support"
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config DM_REBOOT_MODE
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bool "Enable reboot mode using Driver Model"
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depends on DM
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default n
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help
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Enable support for reboot mode control. This will allow users to
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adjust the boot process based on reboot mode parameter
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passed to U-Boot.
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config DM_REBOOT_MODE_GPIO
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bool "Use GPIOs as reboot mode backend"
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depends on DM_REBOOT_MODE
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default n
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help
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Use GPIOs to control the reboot mode. This will allow users to boot
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a device in a specific mode by using a GPIO that can be controlled
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outside U-Boot.
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endmenu
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