49 lines
1.3 KiB
Plaintext
49 lines
1.3 KiB
Plaintext
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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Required properties:
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- compatible: One of:
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"aspeed,ast2400-scu", "syscon", "simple-mfd"
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"aspeed,ast2500-scu", "syscon", "simple-mfd"
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- reg: contains the offset and length of the SCU memory region
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- #clock-cells: should be set to <1> - the system controller is also a
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clock provider
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- #reset-cells: should be set to <1> - the system controller is also a
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reset line provider
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Example:
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syscon: 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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};
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Silicon ID
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-----------------
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Families have unique hardware silicon identifiers within the SoC.
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Required properties:
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- compatible: "aspeed,silicon-id" or:
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"aspeed,ast2400-silicon-id" or
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"aspeed,ast2500-silicon-id" or
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"aspeed,ast2600-silicon-id"
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- reg: offset and length of the silicon id information
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optionally, a second offset and length describes the unique chip id
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The reg should be the unique silicon id register, and
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not backwards compatible one in eg. the 2600.
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Example:
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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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