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