| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/mfd/aspeed,ast2x00-scu.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Aspeed System Control Unit |
| 8 | |
| 9 | description: |
| 10 | The Aspeed System Control Unit manages the global behaviour of the SoC, |
| 11 | configuring elements such as clocks, pinmux, and reset. |
| 12 | |
| 13 | maintainers: |
| 14 | - Joel Stanley <joel@jms.id.au> |
| 15 | - Andrew Jeffery <andrew@aj.id.au> |
| 16 | |
| 17 | properties: |
| 18 | compatible: |
| 19 | items: |
| 20 | - enum: |
| 21 | - aspeed,ast2400-scu |
| 22 | - aspeed,ast2500-scu |
| 23 | - aspeed,ast2600-scu |
| 24 | - const: syscon |
| 25 | - const: simple-mfd |
| 26 | |
| 27 | reg: |
| 28 | maxItems: 1 |
| 29 | |
| 30 | ranges: true |
| 31 | |
| 32 | '#address-cells': |
| 33 | const: 1 |
| 34 | |
| 35 | '#size-cells': |
| 36 | const: 1 |
| 37 | |
| 38 | '#clock-cells': |
| 39 | const: 1 |
| 40 | |
| 41 | '#reset-cells': |
| 42 | const: 1 |
| 43 | |
| 44 | patternProperties: |
| 45 | '^p2a-control@[0-9a-f]+$': |
| 46 | description: See Documentation/devicetree/bindings/misc/aspeed-p2a-ctrl.txt |
| 47 | type: object |
| 48 | |
| 49 | '^pinctrl(@[0-9a-f]+)?$': |
| 50 | oneOf: |
| 51 | - $ref: /schemas/pinctrl/aspeed,ast2400-pinctrl.yaml |
| 52 | - $ref: /schemas/pinctrl/aspeed,ast2500-pinctrl.yaml |
| 53 | - $ref: /schemas/pinctrl/aspeed,ast2600-pinctrl.yaml |
| 54 | |
| 55 | '^interrupt-controller@[0-9a-f]+$': |
| 56 | description: See Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt |
| 57 | type: object |
| 58 | |
| 59 | '^silicon-id@[0-9a-f]+$': |
| 60 | description: Unique hardware silicon identifiers within the SoC |
| 61 | type: object |
| 62 | additionalProperties: false |
| 63 | |
| 64 | properties: |
| 65 | compatible: |
| 66 | items: |
| 67 | - enum: |
| 68 | - aspeed,ast2400-silicon-id |
| 69 | - aspeed,ast2500-silicon-id |
| 70 | - aspeed,ast2600-silicon-id |
| 71 | - const: aspeed,silicon-id |
| 72 | |
| 73 | reg: |
| 74 | description: |
| 75 | The reg should be the unique silicon id register, and not backwards |
| 76 | compatible one in eg. the 2600. |
| 77 | minItems: 1 |
| 78 | items: |
| 79 | - description: silicon id information registers |
| 80 | - description: unique chip id registers |
| 81 | |
| 82 | required: |
| 83 | - compatible |
| 84 | - reg |
| 85 | - ranges |
| 86 | - '#address-cells' |
| 87 | - '#size-cells' |
| 88 | - '#clock-cells' |
| 89 | - '#reset-cells' |
| 90 | |
| 91 | additionalProperties: false |
| 92 | |
| 93 | examples: |
| 94 | - | |
| 95 | syscon@1e6e2000 { |
| 96 | compatible = "aspeed,ast2400-scu", "syscon", "simple-mfd"; |
| 97 | reg = <0x1e6e2000 0x1a8>; |
| 98 | #clock-cells = <1>; |
| 99 | #reset-cells = <1>; |
| 100 | |
| 101 | #address-cells = <1>; |
| 102 | #size-cells = <1>; |
| 103 | ranges = <0x0 0x1e6e2000 0x1000>; |
| 104 | |
| 105 | silicon-id@7c { |
| 106 | compatible = "aspeed,ast2500-silicon-id", "aspeed,silicon-id"; |
| 107 | reg = <0x7c 0x4>, <0x150 0x8>; |
| 108 | }; |
| 109 | }; |
| 110 | ... |