1 Device tree configuration for the I2C Interrup 1 Device tree configuration for the I2C Interrupt Controller on the AST24XX and
2 AST25XX SoCs. 2 AST25XX SoCs.
3 3
4 Required Properties: 4 Required Properties:
5 - #address-cells : should be 1 5 - #address-cells : should be 1
6 - #size-cells : should be 1 6 - #size-cells : should be 1
7 - #interrupt-cells : should be 1 7 - #interrupt-cells : should be 1
8 - compatible : should be "aspeed,as 8 - compatible : should be "aspeed,ast2400-i2c-ic"
9 or "aspeed,ast2500-i 9 or "aspeed,ast2500-i2c-ic"
10 - reg : address start and ra 10 - reg : address start and range of controller
11 - interrupts : interrupt number 11 - interrupts : interrupt number
12 - interrupt-controller : denotes that the con 12 - interrupt-controller : denotes that the controller receives and fires
13 new interrupts for c 13 new interrupts for child busses
14 14
15 Example: 15 Example:
16 16
17 i2c_ic: interrupt-controller@0 { 17 i2c_ic: interrupt-controller@0 {
18 #address-cells = <1>; 18 #address-cells = <1>;
19 #size-cells = <1>; 19 #size-cells = <1>;
20 #interrupt-cells = <1>; 20 #interrupt-cells = <1>;
21 compatible = "aspeed,ast2400-i2c-ic"; 21 compatible = "aspeed,ast2400-i2c-ic";
22 reg = <0x0 0x40>; 22 reg = <0x0 0x40>;
23 interrupts = <12>; 23 interrupts = <12>;
24 interrupt-controller; 24 interrupt-controller;
25 }; 25 };
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