0001 Socionext SynQuacer External Interrupt Unit (EXIU)
0002
0003 The Socionext Synquacer SoC has an external interrupt unit (EXIU)
0004 that forwards a block of 32 configurable input lines to 32 adjacent
0005 level-high type GICv3 SPIs.
0006
0007 Required properties:
0008
0009 - compatible : Should be "socionext,synquacer-exiu".
0010 - reg : Specifies base physical address and size of the
0011 control registers.
0012 - interrupt-controller : Identifies the node as an interrupt controller.
0013 - #interrupt-cells : Specifies the number of cells needed to encode an
0014 interrupt source. The value must be 3.
0015 - socionext,spi-base : The SPI number of the first SPI of the 32 adjacent
0016 ones the EXIU forwards its interrups to.
0017
0018 Notes:
0019
0020 - Only SPIs can use the EXIU as an interrupt parent.
0021
0022 Example:
0023
0024 exiu: interrupt-controller@510c0000 {
0025 compatible = "socionext,synquacer-exiu";
0026 reg = <0x0 0x510c0000 0x0 0x20>;
0027 interrupt-controller;
0028 interrupt-parent = <&gic>;
0029 #interrupt-cells = <3>;
0030 socionext,spi-base = <112>;
0031 };
