| DT bindings for the Renesas RZ/A1 Interrupt Controller |
| |
| The RZ/A1 Interrupt Controller is a front-end for the GIC found on Renesas |
| RZ/A1 and RZ/A2 SoCs: |
| - IRQ sense select for 8 external interrupts, 1:1-mapped to 8 GIC SPI |
| interrupts, |
| - NMI edge select. |
| |
| Required properties: |
| - compatible: Must be "renesas,<soctype>-irqc", and "renesas,rza1-irqc" as |
| fallback. |
| Examples with soctypes are: |
| - "renesas,r7s72100-irqc" (RZ/A1H) |
| - "renesas,r7s9210-irqc" (RZ/A2M) |
| - #interrupt-cells: Must be 2 (an interrupt index and flags, as defined |
| in interrupts.txt in this directory) |
| - #address-cells: Must be zero |
| - interrupt-controller: Marks the device as an interrupt controller |
| - reg: Base address and length of the memory resource used by the interrupt |
| controller |
| - interrupt-map: Specifies the mapping from external interrupts to GIC |
| interrupts |
| - interrupt-map-mask: Must be <7 0> |
| |
| Example: |
| |
| irqc: interrupt-controller@fcfef800 { |
| compatible = "renesas,r7s72100-irqc", "renesas,rza1-irqc"; |
| #interrupt-cells = <2>; |
| #address-cells = <0>; |
| interrupt-controller; |
| reg = <0xfcfef800 0x6>; |
| interrupt-map = |
| <0 0 &gic GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>, |
| <1 0 &gic GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>, |
| <2 0 &gic GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>, |
| <3 0 &gic GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>, |
| <4 0 &gic GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>, |
| <5 0 &gic GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>, |
| <6 0 &gic GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>, |
| <7 0 &gic GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; |
| interrupt-map-mask = <7 0>; |
| }; |