projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 23fb08e7 DLM |
1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 | |
| 3 | --- | |
| 4 | $id: http://devicetree.org/schemas/mfd/canaan,k210-sysctl.yaml# | |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# | |
| 6 | ||
| 7 | title: Canaan Kendryte K210 System Controller Device Tree Bindings | |
| 8 | ||
| 9 | maintainers: | |
| 10 | - Damien Le Moal <damien.lemoal@wdc.com> | |
| 11 | ||
| 12 | description: | |
| 13 | Canaan Inc. Kendryte K210 SoC system controller which provides a | |
| 14 | register map for controlling the clocks, reset signals and pin power | |
| 15 | domains of the SoC. | |
| 16 | ||
| 17 | properties: | |
| 18 | compatible: | |
| 19 | items: | |
| 20 | - const: canaan,k210-sysctl | |
| 21 | - const: syscon | |
| 22 | - const: simple-mfd | |
| 23 | ||
| 24 | clocks: | |
| 25 | maxItems: 1 | |
| 26 | description: | |
| 27 | System controller Advanced Power Bus (APB) interface clock source. | |
| 28 | ||
| 29 | clock-names: | |
| 30 | items: | |
| 31 | - const: pclk | |
| 32 | ||
| 33 | reg: | |
| 34 | maxItems: 1 | |
| 35 | ||
| 36 | clock-controller: | |
| 37 | # Child node | |
| 38 | type: object | |
| 39 | $ref: "../clock/canaan,k210-clk.yaml" | |
| 40 | description: | |
| 41 | Clock controller for the SoC clocks. This child node definition | |
| 42 | should follow the bindings specified in | |
| 43 | Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml. | |
| 44 | ||
| 45 | reset-controller: | |
| 46 | # Child node | |
| 47 | type: object | |
| 48 | $ref: "../reset/canaan,k210-rst.yaml" | |
| 49 | description: | |
| 50 | Reset controller for the SoC. This child node definition | |
| 51 | should follow the bindings specified in | |
| 52 | Documentation/devicetree/bindings/reset/canaan,k210-rst.yaml. | |
| 53 | ||
| 54 | syscon-reboot: | |
| 55 | # Child node | |
| 56 | type: object | |
| 57 | $ref: "../power/reset/syscon-reboot.yaml" | |
| 58 | description: | |
| 59 | Reboot method for the SoC. This child node definition | |
| 60 | should follow the bindings specified in | |
| 61 | Documentation/devicetree/bindings/power/reset/syscon-reboot.yaml. | |
| 62 | ||
| 63 | required: | |
| 64 | - compatible | |
| 65 | - clocks | |
| 66 | - reg | |
| 67 | - clock-controller | |
| 68 | ||
| 69 | additionalProperties: false | |
| 70 | ||
| 71 | examples: | |
| 72 | - | | |
| 73 | #include <dt-bindings/clock/k210-clk.h> | |
| 74 | #include <dt-bindings/reset/k210-rst.h> | |
| 75 | ||
| 76 | clocks { | |
| 77 | in0: oscllator { | |
| 78 | compatible = "fixed-clock"; | |
| 79 | #clock-cells = <0>; | |
| 80 | clock-frequency = <26000000>; | |
| 81 | }; | |
| 82 | }; | |
| 83 | ||
| 84 | sysctl: syscon@50440000 { | |
| 85 | compatible = "canaan,k210-sysctl", | |
| 86 | "syscon", "simple-mfd"; | |
| 87 | reg = <0x50440000 0x100>; | |
| 88 | clocks = <&sysclk K210_CLK_APB1>; | |
| 89 | clock-names = "pclk"; | |
| 90 | ||
| 91 | sysclk: clock-controller { | |
| 92 | #clock-cells = <1>; | |
| 93 | compatible = "canaan,k210-clk"; | |
| 94 | clocks = <&in0>; | |
| 95 | }; | |
| 96 | ||
| 97 | sysrst: reset-controller { | |
| 98 | compatible = "canaan,k210-rst"; | |
| 99 | #reset-cells = <1>; | |
| 100 | }; | |
| 101 | ||
| 102 | reboot: syscon-reboot { | |
| 103 | compatible = "syscon-reboot"; | |
| 104 | regmap = <&sysctl>; | |
| 105 | offset = <48>; | |
| 106 | mask = <1>; | |
| 107 | value = <1>; | |
| 108 | }; | |
| 109 | }; |