18c2ecf20Sopenharmony_ci* Freescale Layerscape external IRQs 28c2ecf20Sopenharmony_ci 38c2ecf20Sopenharmony_ciSome Layerscape SOCs (LS1021A, LS1043A, LS1046A) support inverting 48c2ecf20Sopenharmony_cithe polarity of certain external interrupt lines. 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ciThe device node must be a child of the node representing the 78c2ecf20Sopenharmony_ciSupplemental Configuration Unit (SCFG). 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ciRequired properties: 108c2ecf20Sopenharmony_ci- compatible: should be "fsl,<soc-name>-extirq", e.g. "fsl,ls1021a-extirq". 118c2ecf20Sopenharmony_ci- #interrupt-cells: Must be 2. The first element is the index of the 128c2ecf20Sopenharmony_ci external interrupt line. The second element is the trigger type. 138c2ecf20Sopenharmony_ci- #address-cells: Must be 0. 148c2ecf20Sopenharmony_ci- interrupt-controller: Identifies the node as an interrupt controller 158c2ecf20Sopenharmony_ci- reg: Specifies the Interrupt Polarity Control Register (INTPCR) in 168c2ecf20Sopenharmony_ci the SCFG. 178c2ecf20Sopenharmony_ci- interrupt-map: Specifies the mapping from external interrupts to GIC 188c2ecf20Sopenharmony_ci interrupts. 198c2ecf20Sopenharmony_ci- interrupt-map-mask: Must be <0xffffffff 0>. 208c2ecf20Sopenharmony_ci 218c2ecf20Sopenharmony_ciExample: 228c2ecf20Sopenharmony_ci scfg: scfg@1570000 { 238c2ecf20Sopenharmony_ci compatible = "fsl,ls1021a-scfg", "syscon"; 248c2ecf20Sopenharmony_ci reg = <0x0 0x1570000 0x0 0x10000>; 258c2ecf20Sopenharmony_ci big-endian; 268c2ecf20Sopenharmony_ci #address-cells = <1>; 278c2ecf20Sopenharmony_ci #size-cells = <1>; 288c2ecf20Sopenharmony_ci ranges = <0x0 0x0 0x1570000 0x10000>; 298c2ecf20Sopenharmony_ci 308c2ecf20Sopenharmony_ci extirq: interrupt-controller@1ac { 318c2ecf20Sopenharmony_ci compatible = "fsl,ls1021a-extirq"; 328c2ecf20Sopenharmony_ci #interrupt-cells = <2>; 338c2ecf20Sopenharmony_ci #address-cells = <0>; 348c2ecf20Sopenharmony_ci interrupt-controller; 358c2ecf20Sopenharmony_ci reg = <0x1ac 4>; 368c2ecf20Sopenharmony_ci interrupt-map = 378c2ecf20Sopenharmony_ci <0 0 &gic GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>, 388c2ecf20Sopenharmony_ci <1 0 &gic GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>, 398c2ecf20Sopenharmony_ci <2 0 &gic GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>, 408c2ecf20Sopenharmony_ci <3 0 &gic GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>, 418c2ecf20Sopenharmony_ci <4 0 &gic GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>, 428c2ecf20Sopenharmony_ci <5 0 &gic GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>; 438c2ecf20Sopenharmony_ci interrupt-map-mask = <0xffffffff 0x0>; 448c2ecf20Sopenharmony_ci }; 458c2ecf20Sopenharmony_ci }; 468c2ecf20Sopenharmony_ci 478c2ecf20Sopenharmony_ci 488c2ecf20Sopenharmony_ci interrupts-extended = <&gic GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>, 498c2ecf20Sopenharmony_ci <&extirq 1 IRQ_TYPE_LEVEL_LOW>; 50