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dt-bindings: interrupt-controller: Add Amazon's Annapurna Labs FIC

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Document Amazon's Annapurna Labs Fabric Interrupt Controller SoC binding.

Signed-off-by: Talel Shenhar <talel@amazon.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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Talel Shenhar 2019-06-10 11:34:42 +03:00 committed by Marc Zyngier
parent 0bdd0047ec
commit 74b5150cde
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Documentation/devicetree/bindings/interrupt-controller/amazon,al-fic.txt Normal file
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Amazon's Annapurna Labs Fabric Interrupt Controller
Required properties:
- compatible: should be "amazon,al-fic"
- reg: physical base address and size of the registers
- interrupt-controller: identifies the node as an interrupt controller
- #interrupt-cells: must be 2.
First cell defines the index of the interrupt within the controller.
Second cell is used to specify the trigger type and must be one of the
following:
- bits[3:0] trigger type and level flags
1 = low-to-high edge triggered
4 = active high level-sensitive
- interrupt-parent: specifies the parent interrupt controller.
- interrupts: describes which input line in the interrupt parent, this
fic's output is connected to. This field property depends on the parent's
binding
Example:
amazon_fic: interrupt-controller@0xfd8a8500 {
compatible = "amazon,al-fic";
interrupt-controller;
#interrupt-cells = <2>;
reg = <0x0 0xfd8a8500 0x0 0x1000>;
interrupt-parent = <&gic>;
interrupts = <GIC_SPI 0x0 IRQ_TYPE_LEVEL_HIGH>;
};