111 lines
2.5 KiB
YAML
111 lines
2.5 KiB
YAML
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# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/mfd/aspeed,ast2x00-scu.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Aspeed System Control Unit
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description:
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The Aspeed System Control Unit manages the global behaviour of the SoC,
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configuring elements such as clocks, pinmux, and reset.
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maintainers:
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- Joel Stanley <joel@jms.id.au>
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- Andrew Jeffery <andrew@aj.id.au>
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properties:
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compatible:
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items:
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- enum:
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- aspeed,ast2400-scu
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- aspeed,ast2500-scu
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- aspeed,ast2600-scu
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- const: syscon
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- const: simple-mfd
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reg:
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maxItems: 1
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ranges: true
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'#address-cells':
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const: 1
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'#size-cells':
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const: 1
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'#clock-cells':
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const: 1
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'#reset-cells':
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const: 1
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patternProperties:
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'^p2a-control@[0-9a-f]+$':
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description: See Documentation/devicetree/bindings/misc/aspeed-p2a-ctrl.txt
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type: object
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'^pinctrl(@[0-9a-f]+)?$':
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oneOf:
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- $ref: /schemas/pinctrl/aspeed,ast2400-pinctrl.yaml
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- $ref: /schemas/pinctrl/aspeed,ast2500-pinctrl.yaml
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- $ref: /schemas/pinctrl/aspeed,ast2600-pinctrl.yaml
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'^interrupt-controller@[0-9a-f]+$':
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description: See Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt
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type: object
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'^silicon-id@[0-9a-f]+$':
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description: Unique hardware silicon identifiers within the SoC
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type: object
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additionalProperties: false
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properties:
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compatible:
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items:
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- enum:
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- aspeed,ast2400-silicon-id
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- aspeed,ast2500-silicon-id
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- aspeed,ast2600-silicon-id
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- const: aspeed,silicon-id
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reg:
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description:
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The reg should be the unique silicon id register, and not backwards
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compatible one in eg. the 2600.
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minItems: 1
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items:
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- description: silicon id information registers
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- description: unique chip id registers
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required:
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- compatible
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- reg
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- ranges
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- '#address-cells'
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- '#size-cells'
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- '#clock-cells'
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- '#reset-cells'
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additionalProperties: false
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examples:
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- |
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syscon@1e6e2000 {
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compatible = "aspeed,ast2400-scu", "syscon", "simple-mfd";
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reg = <0x1e6e2000 0x1a8>;
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#clock-cells = <1>;
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#reset-cells = <1>;
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0x0 0x1e6e2000 0x1000>;
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silicon-id@7c {
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compatible = "aspeed,ast2500-silicon-id", "aspeed,silicon-id";
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reg = <0x7c 0x4>, <0x150 0x8>;
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};
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};
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...
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