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The Aspeed System Control Unit manages the global behaviour of the SoC,
configuring elements such as clocks, pinmux, and reset.
Required properties:
- compatible: One of:
"aspeed,ast2400-scu", "syscon", "simple-mfd"
"aspeed,ast2500-scu", "syscon", "simple-mfd"
- reg: contains the offset and length of the SCU memory region
- #clock-cells: should be set to <1> - the system controller is also a
clock provider
- #reset-cells: should be set to <1> - the system controller is also a
reset line provider
Example:
syscon: syscon@1e6e2000 {
compatible = "aspeed,ast2400-scu", "syscon", "simple-mfd";
reg = <0x1e6e2000 0x1a8>;
#clock-cells = <1>;
#reset-cells = <1>;
};
Silicon ID
-----------------
Families have unique hardware silicon identifiers within the SoC.
Required properties:
- compatible: "aspeed,silicon-id" or:
"aspeed,ast2400-silicon-id" or
"aspeed,ast2500-silicon-id" or
"aspeed,ast2600-silicon-id"
- reg: offset and length of the silicon id information
optionally, a second offset and length describes the unique chip id
The reg should be the unique silicon id register, and
not backwards compatible one in eg. the 2600.
Example:
silicon-id@7c {
compatible = "aspeed,ast2500-silicon-id", "aspeed,silicon-id";
reg = <0x7c 0x4 0x150 0x8>;
};
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