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Diffstat (limited to 'Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt')
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diff --git a/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt b/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt deleted file mode 100644 index c3a1b37c4c35..000000000000 --- a/Documentation/devicetree/bindings/interrupt-controller/microchip,pic32-evic.txt +++ /dev/null @@ -1,67 +0,0 @@ -Microchip PIC32 Interrupt Controller -==================================== - -The Microchip PIC32 contains an Enhanced Vectored Interrupt Controller (EVIC). -It handles all internal and external interrupts. This controller exists outside -of the CPU and is the arbitrator of all interrupts (including interrupts from -the CPU itself) before they are presented to the CPU. - -External interrupts have a software configurable edge polarity. Non external -interrupts have a type and polarity that is determined by the source of the -interrupt. - -Required properties -------------------- - -- compatible: Should be "microchip,pic32mzda-evic" -- reg: Specifies physical base address and size of register range. -- interrupt-controller: Identifies the node as an interrupt controller. -- #interrupt cells: Specifies the number of cells used to encode an interrupt - source connected to this controller. The value shall be 2 and interrupt - descriptor shall have the following format: - - <hw_irq irq_type> - - hw_irq - represents the hardware interrupt number as in the data sheet. - irq_type - is used to describe the type and polarity of an interrupt. For - internal interrupts use IRQ_TYPE_EDGE_RISING for non persistent interrupts and - IRQ_TYPE_LEVEL_HIGH for persistent interrupts. For external interrupts use - IRQ_TYPE_EDGE_RISING or IRQ_TYPE_EDGE_FALLING to select the desired polarity. - -Optional properties -------------------- -- microchip,external-irqs: u32 array of external interrupts with software - polarity configuration. This array corresponds to the bits in the INTCON - SFR. - -Example -------- - -evic: interrupt-controller@1f810000 { - compatible = "microchip,pic32mzda-evic"; - interrupt-controller; - #interrupt-cells = <2>; - reg = <0x1f810000 0x1000>; - microchip,external-irqs = <3 8 13 18 23>; -}; - -Each device/peripheral must request its interrupt line with the associated type -and polarity. - -Internal interrupt DTS snippet ------------------------------- - -device@1f800000 { - ... - interrupts = <113 IRQ_TYPE_LEVEL_HIGH>; - ... -}; - -External interrupt DTS snippet ------------------------------- - -device@1f800000 { - ... - interrupts = <3 IRQ_TYPE_EDGE_RISING>; - ... -}; |