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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/interrupt-controller/ti,keystone-irq.txt | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/interrupt-controller/ti,keystone-irq.txt')
-rw-r--r-- | Documentation/devicetree/bindings/interrupt-controller/ti,keystone-irq.txt | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/interrupt-controller/ti,keystone-irq.txt b/Documentation/devicetree/bindings/interrupt-controller/ti,keystone-irq.txt new file mode 100644 index 000000000..5f94d7739 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/ti,keystone-irq.txt @@ -0,0 +1,36 @@ +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>; + }; |