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