lkml.org 
[lkml]   [2017]   [Jun]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH v2 1/6] dt-bindings: interrupt-controller: add DT binding for the Marvell GICP
    On Fri, Jun 02, 2017 at 12:06:52PM +0200, Thomas Petazzoni wrote:
    > This commit adds the Device Tree binding documentation for the Marvell
    > GICP, an extension to the GIC that allows to trigger GIC SPI interrupts
    > using memory transactions. It is used by the ICU unit in the Marvell
    > CP110 block to turn wired interrupts inside the CP into SPI interrupts
    > at the GIC level in the AP.

    Sounds like an MSI block?

    > Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
    > ---
    > .../bindings/interrupt-controller/marvell,gicp.txt | 24 ++++++++++++++++++++++
    > 1 file changed, 24 insertions(+)
    > create mode 100644 Documentation/devicetree/bindings/interrupt-controller/marvell,gicp.txt
    >
    > diff --git a/Documentation/devicetree/bindings/interrupt-controller/marvell,gicp.txt b/Documentation/devicetree/bindings/interrupt-controller/marvell,gicp.txt
    > new file mode 100644
    > index 0000000..3fc36963
    > --- /dev/null
    > +++ b/Documentation/devicetree/bindings/interrupt-controller/marvell,gicp.txt
    > @@ -0,0 +1,24 @@
    > +Marvell GICP Controller
    > +-----------------------
    > +
    > +GICP is a Marvell extension of the GIC that allows to trigger GIC SPI
    > +interrupts by doing a memory transaction. It is used by the ICU
    > +located in the Marvell CP110 to turn wired interrupts inside the CP
    > +into GIC SPI interrupts.
    > +
    > +Required properties:
    > +
    > +- compatible: Must be "marvell,ap806-gicp"
    > +
    > +- reg: Must be the address and size of the GICP SPI registers
    > +
    > +- marvell,spi-ranges: tuples of GIC SPI interrupts ranges available
    > + for this GICP

    These are base+size?

    > +
    > +Example:
    > +
    > +gicp_spi: gicp-spi@3f0040 {
    > + compatible = "marvell,ap806-gicp";
    > + reg = <0x3f0040 0x10>;
    > + marvell,spi-ranges = <64 64>, <288 64>;
    > +};
    > --
    > 2.7.4
    >

    \
     
     \ /
      Last update: 2017-06-12 01:14    [W:4.184 / U:0.244 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site