Kernel-4.18.0-80.el8_allwinner,sunxi-nmi

Allwinner Sunxi NMI Controller

Required properties:

  • compatible : should be one of the following:
    • “allwinner,sun7i-a20-sc-nmi”
    • “allwinner,sun6i-a31-sc-nmi” (deprecated)
    • “allwinner,sun6i-a31-r-intc”
    • “allwinner,sun9i-a80-nmi”
  • reg : Specifies base physical address and size of the registers.
  • interrupt-controller : Identifies the node as an interrupt controller
  • #interrupt-cells : Specifies the number of cells needed to encode an
    interrupt source. The value shall be 2. The first cell is the IRQ number, the
    second cell the trigger type as defined in interrupt.txt in this directory.
  • interrupt-parent: Specifies the parent interrupt controller.
  • interrupts: Specifies the interrupt line (NMI) which is handled by
    the interrupt controller in the parent controller’s notation. This value
    shall be the NMI.

Example:

sc-nmi-intc@1c00030 {
compatible = “allwinner,sun7i-a20-sc-nmi”;
interrupt-controller;
#interrupt-cells = <2>;
reg = <0x01c00030 0x0c>;
interrupt-parent = <&gic>;
interrupts = <0 0 4>;
};