1* Freescale Layerscape external IRQs
2
3Some Layerscape SOCs (LS1021A, LS1043A, LS1046A
4LS1088A, LS208xA, LX216xA) support inverting
5the polarity of certain external interrupt lines.
6
7The device node must be a child of the node representing the
8Supplemental Configuration Unit (SCFG).
9
10Required properties:
11- compatible: should be "fsl,<soc-name>-extirq", e.g. "fsl,ls1021a-extirq".
12  "fsl,ls1043a-extirq": for LS1043A, LS1046A.
13  "fsl,ls1088a-extirq": for LS1088A, LS208xA, LX216xA.
14- #interrupt-cells: Must be 2. The first element is the index of the
15  external interrupt line. The second element is the trigger type.
16- #address-cells: Must be 0.
17- interrupt-controller: Identifies the node as an interrupt controller
18- reg: Specifies the Interrupt Polarity Control Register (INTPCR) in
19  the SCFG or the External Interrupt Control Register (IRQCR) in
20  the ISC.
21- interrupt-map: Specifies the mapping from external interrupts to GIC
22  interrupts.
23- interrupt-map-mask: Must be <0xffffffff 0>.
24
25Example:
26	scfg: scfg@1570000 {
27		compatible = "fsl,ls1021a-scfg", "syscon";
28		reg = <0x0 0x1570000 0x0 0x10000>;
29		big-endian;
30		#address-cells = <1>;
31		#size-cells = <1>;
32		ranges = <0x0 0x0 0x1570000 0x10000>;
33
34		extirq: interrupt-controller@1ac {
35			compatible = "fsl,ls1021a-extirq";
36			#interrupt-cells = <2>;
37			#address-cells = <0>;
38			interrupt-controller;
39			reg = <0x1ac 4>;
40			interrupt-map =
41				<0 0 &gic GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
42				<1 0 &gic GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>,
43				<2 0 &gic GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>,
44				<3 0 &gic GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
45				<4 0 &gic GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
46				<5 0 &gic GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
47			interrupt-map-mask = <0xffffffff 0x0>;
48		};
49	};
50
51
52	interrupts-extended = <&gic GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>,
53			      <&extirq 1 IRQ_TYPE_LEVEL_LOW>;
54