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dt-bindings: power: reset: add document for NVMEM based reboot-mode

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Add the device tree bindings document for the NVMEM based reboot-mode
driver.

Signed-off-by: Nandor Han <nandor.han@vaisala.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Han Nandor 2019-05-15 10:47:15 +00:00 committed by Sebastian Reichel
parent fce5430f6a
commit cba155e50a
1 changed files with 26 additions and 0 deletions
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Documentation/devicetree/bindings/power/reset/nvmem-reboot-mode.txt Normal file
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NVMEM reboot mode driver
This driver gets reboot mode magic value from reboot-mode driver
and stores it in a NVMEM cell named "reboot-mode". Then the bootloader
can read it and take different action according to the magic
value stored.
Required properties:
- compatible: should be "nvmem-reboot-mode".
- nvmem-cells: A phandle to the reboot mode provided by a nvmem device.
- nvmem-cell-names: Should be "reboot-mode".
The rest of the properties should follow the generic reboot-mode description
found in reboot-mode.txt
Example:
reboot-mode {
compatible = "nvmem-reboot-mode";
nvmem-cells = <&reboot_mode>;
nvmem-cell-names = "reboot-mode";
mode-normal = <0xAAAA5501>;
mode-bootloader = <0xBBBB5500>;
mode-recovery = <0xCCCC5502>;
mode-test = <0xDDDD5503>;
};