54 lines
1.4 KiB
YAML
54 lines
1.4 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/power/reset/syscon-reboot-mode.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Generic SYSCON reboot mode driver
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maintainers:
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- Sebastian Reichel <sre@kernel.org>
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description: |
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This driver gets reboot mode magic value from reboot-mode driver
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and stores it in a SYSCON mapped register. Then the bootloader
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can read it and take different action according to the magic
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value stored. The SYSCON mapped register is retrieved from the
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parental dt-node plus the offset. So the SYSCON reboot-mode node
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should be represented as a sub-node of a "syscon", "simple-mfd" node.
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properties:
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compatible:
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const: syscon-reboot-mode
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mask:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Update only the register bits defined by the mask (32 bit)
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offset:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Offset in the register map for the mode register (in bytes)
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allOf:
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- $ref: reboot-mode.yaml#
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unevaluatedProperties: false
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required:
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- compatible
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- offset
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examples:
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- |
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#include <dt-bindings/soc/rockchip,boot-mode.h>
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reboot-mode {
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compatible = "syscon-reboot-mode";
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offset = <0x40>;
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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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...
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