Commit 03d679bf authored by Linus Walleij's avatar Linus Walleij
Browse files

bus: Add DT bindings for Integrator/AP logic modules 



This adds YAML device tree bindings for the Integrator/AP
logic modules. These are plug-in tiles used typically for
FPGA prototyping.

Reviewed-by: default avatarRob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20200320134524.52140-1-linus.walleij@linaro.org


Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent ce710769

Documentation/devicetree/bindings/bus/arm,integrator-ap-lm.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/bus/arm,integrator-ap-lm.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Integrator/AP Logic Module extension bus



maintainers:

  - Linus Walleij <linusw@kernel.org>



description: The Integrator/AP is a prototyping platform and as such has a

  site for stacking up to four logic modules (LM) designed specifically for

  use with this platform. A special system controller register can be read to

  determine if a logic module is connected at index 0, 1, 2 or 3. The logic

  module connector is described in this binding. The logic modules per se

  then have their own specific per-module bindings and they will be described

  as subnodes under this logic module extension bus.



properties:

  "#address-cells":

    const: 1



  "#size-cells":

    const: 1



  compatible:

    items:

      - const: arm,integrator-ap-lm



  ranges: true

  dma-ranges: true



patternProperties:

  "^bus(@[0-9a-f]*)?$":

    description: Nodes on the Logic Module bus represent logic modules

      and are named with bus. The first module is at 0xc0000000, the second

      at 0xd0000000 and so on until the top of the memory of the system at

      0xffffffff. All information about the memory used by the module is

      in ranges and dma-ranges.

    type: object



    required:

      - compatible



required:

  - compatible



examples:

  - |

    bus@c0000000 {

      compatible = "arm,integrator-ap-lm";

      #address-cells = <1>;

      #size-cells = <1>;

      ranges = <0xc0000000 0xc0000000 0x40000000>;

      dma-ranges;



      bus@c0000000 {

        compatible = "simple-bus";

        ranges = <0x00000000 0xc0000000 0x10000000>;

        /* The Logic Modules sees the Core Module 0 RAM @80000000 */

        dma-ranges = <0x00000000 0x80000000 0x10000000>;

        #address-cells = <1>;

        #size-cells = <1>;



        serial@100000 {

          compatible = "arm,pl011", "arm,primecell";

          reg = <0x00100000 0x1000>;

          interrupts-extended = <&impd1_vic 1>;

        };



        impd1_vic: interrupt-controller@3000000 {

          compatible = "arm,pl192-vic";

          interrupt-controller;

          #interrupt-cells = <1>;

          reg = <0x03000000 0x1000>;

          valid-mask = <0x00000bff>;

          interrupts-extended = <&pic 9>;

        };

      };

    };



additionalProperties: false