aspeed-scu.txt (1313B)
1The Aspeed System Control Unit manages the global behaviour of the SoC, 2configuring elements such as clocks, pinmux, and reset. 3 4Required properties: 5- compatible: One of: 6 "aspeed,ast2400-scu", "syscon", "simple-mfd" 7 "aspeed,ast2500-scu", "syscon", "simple-mfd" 8 9- reg: contains the offset and length of the SCU memory region 10- #clock-cells: should be set to <1> - the system controller is also a 11 clock provider 12- #reset-cells: should be set to <1> - the system controller is also a 13 reset line provider 14 15Example: 16 17syscon: syscon@1e6e2000 { 18 compatible = "aspeed,ast2400-scu", "syscon", "simple-mfd"; 19 reg = <0x1e6e2000 0x1a8>; 20 #clock-cells = <1>; 21 #reset-cells = <1>; 22}; 23 24Silicon ID 25----------------- 26 27Families have unique hardware silicon identifiers within the SoC. 28 29Required properties: 30 31 - compatible: "aspeed,silicon-id" or: 32 "aspeed,ast2400-silicon-id" or 33 "aspeed,ast2500-silicon-id" or 34 "aspeed,ast2600-silicon-id" 35 36 - reg: offset and length of the silicon id information 37 optionally, a second offset and length describes the unique chip id 38 39 The reg should be the unique silicon id register, and 40 not backwards compatible one in eg. the 2600. 41 42Example: 43 44 45silicon-id@7c { 46 compatible = "aspeed,ast2500-silicon-id", "aspeed,silicon-id"; 47 reg = <0x7c 0x4 0x150 0x8>; 48};