fsl,ls-extirq.txt

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    1 * Freescale Layerscape external IRQs
    2 
    3 Some Layerscape SOCs (LS1021A, LS1043A, LS1046A
    4 LS1088A, LS208xA, LX216xA) support inverting
    5 the polarity of certain external interrupt lines.
    6 
    7 The device node must be a child of the node representing the
    8 Supplemental Configuration Unit (SCFG).
    9 
   10 Required properties:
   11 - compatible: should be "fsl,<soc-name>-extirq", e.g. "fsl,ls1021a-extirq".
   12   "fsl,ls1043a-extirq": for LS1043A, LS1046A.
   13   "fsl,ls1088a-extirq": for LS1088A, LS208xA, LX216xA.
   14 - #interrupt-cells: Must be 2. The first element is the index of the
   15   external interrupt line. The second element is the trigger type.
   16 - #address-cells: Must be 0.
   17 - interrupt-controller: Identifies the node as an interrupt controller
   18 - reg: Specifies the Interrupt Polarity Control Register (INTPCR) in
   19   the SCFG or the External Interrupt Control Register (IRQCR) in
   20   the ISC.
   21 - interrupt-map: Specifies the mapping from external interrupts to GIC
   22   interrupts.
   23 - interrupt-map-mask: Must be <0xffffffff 0>.
   24 
   25 Example:
   26         scfg: scfg@1570000 {
   27                 compatible = "fsl,ls1021a-scfg", "syscon";
   28                 reg = <0x0 0x1570000 0x0 0x10000>;
   29                 big-endian;
   30                 #address-cells = <1>;
   31                 #size-cells = <1>;
   32                 ranges = <0x0 0x0 0x1570000 0x10000>;
   33 
   34                 extirq: interrupt-controller@1ac {
   35                         compatible = "fsl,ls1021a-extirq";
   36                         #interrupt-cells = <2>;
   37                         #address-cells = <0>;
   38                         interrupt-controller;
   39                         reg = <0x1ac 4>;
   40                         interrupt-map =
   41                                 <0 0 &gic GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
   42                                 <1 0 &gic GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>,
   43                                 <2 0 &gic GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>,
   44                                 <3 0 &gic GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
   45                                 <4 0 &gic GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
   46                                 <5 0 &gic GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
   47                         interrupt-map-mask = <0xffffffff 0x0>;
   48                 };
   49         };
   50 
   51 
   52         interrupts-extended = <&gic GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>,
   53                               <&extirq 1 IRQ_TYPE_LEVEL_LOW>;

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/interrupt-controller/fsl,ls-extirq.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/interrupt-controller/fsl,ls-extirq.txt