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