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[V8,4/6] dt-bindings: interrupt-controller: C-SKY SMP intc

Message ID 57888913907d6c22b23425ed9d4e5a79be5b2eff.1537417413.git.ren_guo@c-sky.com
State Superseded, archived
Headers show
Series C-SKY(csky) Linux Kernel Port | expand

Commit Message

Guo Ren Sept. 20, 2018, 5:39 a.m. UTC 
- Dt-bindings doc about C-SKY Multi-processors interrupt controller.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
---
 .../bindings/interrupt-controller/csky,mpintc.txt  | 40 ++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt
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Patch

diff --git a/Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt b/Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt
new file mode 100644
index 0000000..9cdad74
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt
@@ -0,0 +1,40 @@ 
+===========================================
+C-SKY Multi-processors Interrupt Controller
+===========================================
+
+C-SKY Multi-processors Interrupt Controller is designed for ck807/ck810/ck860
+SMP soc, and it also could be used in non-SMP system.
+
+Interrupt number definition:
+
+  0-15  : software irq, and we use 15 as our IPI_IRQ.
+ 16-31  : private  irq, and we use 16 as the co-processor timer.
+ 31-1024: common irq for soc ip.
+
+=============================
+intc node bindings definition
+=============================
+
+	Description: Describes SMP interrupt controller
+
+	PROPERTIES
+
+	- compatible
+		Usage: required
+		Value type: <string>
+		Definition: must be "csky,mpintc"
+	- interrupt-cells
+		Usage: required
+		Value type: <u32>
+		Definition: must be <1>
+	- interrupt-controller:
+		Usage: required
+
+Examples:
+---------
+
+	intc: interrupt-controller {
+		compatible = "csky,mpintc";
+		#interrupt-cells = <1>;
+		interrupt-controller;
+	};