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-Keystone 2 IRQ controller IP
-
-On Keystone SOCs, DSP cores can send interrupts to ARM
-host using the IRQ controller IP. It provides 28 IRQ signals to ARM.
-The IRQ handler running on HOST OS can identify DSP signal source by
-analyzing SRCCx bits in IPCARx registers. This is one of the component
-used by the IPC mechanism used on Keystone SOCs.
-
-Required Properties:
-- compatible: should be "ti,keystone-irq"
-- ti,syscon-dev : phandle and offset pair. The phandle to syscon used to
- access device control registers and the offset inside
- device control registers range.
-- interrupt-controller : Identifies the node as an interrupt controller
-- #interrupt-cells : Specifies the number of cells needed to encode interrupt
- source should be 1.
-- interrupts: interrupt reference to primary interrupt controller
-
-Please refer to interrupts.txt in this directory for details of the common
-Interrupt Controllers bindings used by client devices.
-
-Example:
- kirq0: keystone_irq0@26202a0 {
- compatible = "ti,keystone-irq";
- ti,syscon-dev = <&devctrl 0x2a0>;
- interrupts = <GIC_SPI 4 IRQ_TYPE_EDGE_RISING>;
- interrupt-controller;
- #interrupt-cells = <1>;
- };
-
- dsp0: dsp0 {
- compatible = "linux,rproc-user";
- ...
- interrupt-parent = <&kirq0>;
- interrupts = <10 2>;
- };