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376e27e485
Add device tree bindings document for reboot-mode driver. Signed-off-by: Andy Yan <andy.yan@rock-chips.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
26 lines
1.1 KiB
Plaintext
26 lines
1.1 KiB
Plaintext
Generic reboot mode core map driver
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This driver get reboot mode arguments and call the write
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interface to store the magic value in special register
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or ram. Then the bootloader can read it and take different
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action according to the argument stored.
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All mode properties are vendor specific, it is a indication to tell
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the bootloader what to do when the system reboots, and should be named
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as mode-xxx = <magic> (xxx is mode name, magic should be a none-zero value).
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For example modes common on Android platform:
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- mode-normal: Normal reboot mode, system reboot with command "reboot".
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- mode-recovery: Android Recovery mode, it is a mode to format the device or update a new image.
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- mode-bootloader: Android fastboot mode, it's a mode to re-flash partitions on the Android based device.
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- mode-loader: A bootloader mode, it's a mode used to download image on Rockchip platform,
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usually used in development.
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Example:
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reboot-mode {
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mode-normal = <BOOT_NORMAL>;
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mode-recovery = <BOOT_RECOVERY>;
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mode-bootloader = <BOOT_FASTBOOT>;
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mode-loader = <BOOT_BL_DOWNLOAD>;
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}
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