| # 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>; | |
| }; | |
| ... |