diff options
Diffstat (limited to 'Documentation/devicetree/bindings/mfd/aspeed-scu.txt')
-rw-r--r-- | Documentation/devicetree/bindings/mfd/aspeed-scu.txt | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/mfd/aspeed-scu.txt b/Documentation/devicetree/bindings/mfd/aspeed-scu.txt index ce8cf0ec6279..857ee33f7329 100644 --- a/Documentation/devicetree/bindings/mfd/aspeed-scu.txt +++ b/Documentation/devicetree/bindings/mfd/aspeed-scu.txt @@ -4,9 +4,7 @@ configuring elements such as clocks, pinmux, and reset. Required properties: - compatible: One of: "aspeed,ast2400-scu", "syscon", "simple-mfd" - "aspeed,g4-scu", "syscon", "simple-mfd" "aspeed,ast2500-scu", "syscon", "simple-mfd" - "aspeed,g5-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 @@ -22,3 +20,29 @@ syscon: syscon@1e6e2000 { #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>; +}; |