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    SubjectRe: [PATCH V3 22/26] dt-bindings: interrupt-controller: C-SKY SMP intc
    On Wed, Sep 5, 2018 at 7:09 AM Guo Ren <ren_guo@c-sky.com> wrote:
    >
    > Signed-off-by: Guo Ren <ren_guo@c-sky.com>
    > ---
    > .../bindings/interrupt-controller/csky,mpintc.txt | 40 ++++++++++++++++++++++
    > 1 file changed, 40 insertions(+)
    > create mode 100644 Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt
    >
    > diff --git a/Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt b/Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt
    > new file mode 100644
    > index 0000000..49d1658
    > --- /dev/null
    > +++ b/Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt
    > @@ -0,0 +1,40 @@
    > +===========================================
    > +C-SKY Multi-processors Interrupt Controller
    > +===========================================
    > +
    > +C-SKY Multi-processors Interrupt Controller is designed for ck807/ck810/ck860
    > +SMP soc, and it also could be used in non-SMP system.

    How is it accessed? No mmio registers?

    > +
    > +Interrupt number definition:
    > +
    > + 0-15 : software irq, and we use 15 as our IPI_IRQ.
    > + 16-31 : private irq, and we use 16 as the co-processor timer.
    > + 31-1024: common irq for soc ip.
    > +
    > +=============================
    > +intc node bindings definition
    > +=============================
    > +
    > + Description: Describes SMP interrupt controller
    > +
    > + PROPERTIES
    > +
    > + - compatible
    > + Usage: required
    > + Value type: <string>
    > + Definition: must be "csky,mpintc"
    > + - interrupt-cells
    > + Usage: required
    > + Value type: <u32>
    > + Definition: must be <1>
    > + - interrupt-controller:
    > + Usage: required
    > +
    > +Examples:
    > +---------
    > +
    > + intc: interrupt-controller {
    > + compatible = "csky,mpintc";
    > + #interrupt-cells = <1>;
    > + interrupt-controller;
    > + };
    > --
    > 2.7.4
    >

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