162306a36Sopenharmony_ci* Advanced Interrupt Controller (AIC)
262306a36Sopenharmony_ci
362306a36Sopenharmony_ciRequired properties:
462306a36Sopenharmony_ci- compatible: Should be:
562306a36Sopenharmony_ci    - "atmel,<chip>-aic" where  <chip> can be "at91rm9200", "sama5d2",
662306a36Sopenharmony_ci      "sama5d3" or "sama5d4"
762306a36Sopenharmony_ci    - "microchip,<chip>-aic" where <chip> can be "sam9x60"
862306a36Sopenharmony_ci
962306a36Sopenharmony_ci- interrupt-controller: Identifies the node as an interrupt controller.
1062306a36Sopenharmony_ci- #interrupt-cells: The number of cells to define the interrupts. It should be 3.
1162306a36Sopenharmony_ci  The first cell is the IRQ number (aka "Peripheral IDentifier" on datasheet).
1262306a36Sopenharmony_ci  The second cell is used to specify flags:
1362306a36Sopenharmony_ci    bits[3:0] trigger type and level flags:
1462306a36Sopenharmony_ci      1 = low-to-high edge triggered.
1562306a36Sopenharmony_ci      2 = high-to-low edge triggered.
1662306a36Sopenharmony_ci      4 = active high level-sensitive.
1762306a36Sopenharmony_ci      8 = active low level-sensitive.
1862306a36Sopenharmony_ci      Valid combinations are 1, 2, 3, 4, 8.
1962306a36Sopenharmony_ci      Default flag for internal sources should be set to 4 (active high).
2062306a36Sopenharmony_ci  The third cell is used to specify the irq priority from 0 (lowest) to 7
2162306a36Sopenharmony_ci  (highest).
2262306a36Sopenharmony_ci- reg: Should contain AIC registers location and length
2362306a36Sopenharmony_ci- atmel,external-irqs: u32 array of external irqs.
2462306a36Sopenharmony_ci
2562306a36Sopenharmony_ciExamples:
2662306a36Sopenharmony_ci	/*
2762306a36Sopenharmony_ci	 * AIC
2862306a36Sopenharmony_ci	 */
2962306a36Sopenharmony_ci	aic: interrupt-controller@fffff000 {
3062306a36Sopenharmony_ci		compatible = "atmel,at91rm9200-aic";
3162306a36Sopenharmony_ci		interrupt-controller;
3262306a36Sopenharmony_ci		#interrupt-cells = <3>;
3362306a36Sopenharmony_ci		reg = <0xfffff000 0x200>;
3462306a36Sopenharmony_ci	};
3562306a36Sopenharmony_ci
3662306a36Sopenharmony_ci	/*
3762306a36Sopenharmony_ci	 * An interrupt generating device that is wired to an AIC.
3862306a36Sopenharmony_ci	 */
3962306a36Sopenharmony_ci	dma: dma-controller@ffffec00 {
4062306a36Sopenharmony_ci		compatible = "atmel,at91sam9g45-dma";
4162306a36Sopenharmony_ci		reg = <0xffffec00 0x200>;
4262306a36Sopenharmony_ci		interrupts = <21 4 5>;
4362306a36Sopenharmony_ci	};
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