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1Socionext SynQuacer External Interrupt Unit (EXIU)
2
3The Socionext Synquacer SoC has an external interrupt unit (EXIU)
4that forwards a block of 32 configurable input lines to 32 adjacent
5level-high type GICv3 SPIs.
6
7Required properties:
8
9- compatible : Should be "socionext,synquacer-exiu".
10- reg : Specifies base physical address and size of the
11 control registers.
12- interrupt-controller : Identifies the node as an interrupt controller.
13- #interrupt-cells : Specifies the number of cells needed to encode an
14 interrupt source. The value must be 3.
15- interrupt-parent : phandle of the GIC these interrupts are routed to.
16- socionext,spi-base : The SPI number of the first SPI of the 32 adjacent
17 ones the EXIU forwards its interrups to.
18
19Notes:
20
21- Only SPIs can use the EXIU as an interrupt parent.
22
23Example:
24
25 exiu: interrupt-controller@510c0000 {
26 compatible = "socionext,synquacer-exiu";
27 reg = <0x0 0x510c0000 0x0 0x20>;
28 interrupt-controller;
29 interrupt-parent = <&gic>;
30 #interrupt-cells = <3>;
31 socionext,spi-base = <112>;
32 };