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Diffstat (limited to 'Documentation/devicetree/bindings/interrupt-controller/snps,archs-idu-intc.txt')
-rw-r--r--Documentation/devicetree/bindings/interrupt-controller/snps,archs-idu-intc.txt21
1 files changed, 6 insertions, 15 deletions
diff --git a/Documentation/devicetree/bindings/interrupt-controller/snps,archs-idu-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/snps,archs-idu-intc.txt
index 0dcb7c7d3e40..8b46a34e05f1 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/snps,archs-idu-intc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/snps,archs-idu-intc.txt
@@ -8,12 +8,11 @@ Properties:
- compatible: "snps,archs-idu-intc"
- interrupt-controller: This is an interrupt controller.
- interrupt-parent: <reference to parent core intc>
-- #interrupt-cells: Must be <2>.
-- interrupts: <...> specifies the upstream core irqs
+- #interrupt-cells: Must be <1>.
- First cell specifies the "common" IRQ from peripheral to IDU
- Second cell specifies the irq distribution mode to cores
- 0=Round Robin; 1=cpu0, 2=cpu1, 4=cpu2, 8=cpu3
+ Value of the cell specifies the "common" IRQ from peripheral to IDU. Number N
+ of the particular interrupt line of IDU corresponds to the line N+24 of the
+ core interrupt controller.
intc accessed via the special ARC AUX register interface, hence "reg" property
is not specified.
@@ -29,18 +28,10 @@ Example:
compatible = "snps,archs-idu-intc";
interrupt-controller;
interrupt-parent = <&core_intc>;
-
- /*
- * <hwirq distribution>
- * distribution: 0=RR; 1=cpu0, 2=cpu1, 4=cpu2, 8=cpu3
- */
- #interrupt-cells = <2>;
-
- /* upstream core irqs: downstream these are "COMMON" irq 0,1.. */
- interrupts = <24 25 26 27 28 29 30 31>;
+ #interrupt-cells = <1>;
};
some_device: serial@c0fc1000 {
interrupt-parent = <&idu_intc>;
- interrupts = <0 0>; /* upstream idu IRQ #24, Round Robin */
+ interrupts = <0>; /* upstream idu IRQ #24 */
};