arm,pl330.yaml

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    1 # SPDX-License-Identifier: GPL-2.0
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/dma/arm,pl330.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: ARM PrimeCell PL330 DMA Controller
    8 
    9 maintainers:
   10   - Vinod Koul <vkoul@kernel.org>
   11 
   12 description:
   13   The ARM PrimeCell PL330 DMA controller can move blocks of memory contents
   14   between memory and peripherals or memory to memory.
   15 
   16 # We need a select here so we don't match all nodes with 'arm,primecell'
   17 select:
   18   properties:
   19     compatible:
   20       contains:
   21         const: arm,pl330
   22   required:
   23     - compatible
   24 
   25 allOf:
   26   - $ref: dma-controller.yaml#
   27   - $ref: /schemas/arm/primecell.yaml#
   28 
   29 properties:
   30   compatible:
   31     items:
   32       - enum:
   33           - arm,pl330
   34       - const: arm,primecell
   35 
   36   reg:
   37     maxItems: 1
   38 
   39   interrupts:
   40     minItems: 1
   41     maxItems: 32
   42     description: A single combined interrupt or an interrupt per event
   43 
   44   '#dma-cells':
   45     const: 1
   46     description: Contains the DMA request number for the consumer
   47 
   48   arm,pl330-broken-no-flushp:
   49     type: boolean
   50     description: quirk for avoiding to execute DMAFLUSHP
   51 
   52   arm,pl330-periph-burst:
   53     type: boolean
   54     description: quirk for performing burst transfer only
   55 
   56   dma-coherent: true
   57 
   58   power-domains:
   59     maxItems: 1
   60 
   61   resets:
   62     minItems: 1
   63     maxItems: 2
   64 
   65   reset-names:
   66     minItems: 1
   67     items:
   68       - const: dma
   69       - const: dma-ocp
   70 
   71 required:
   72   - compatible
   73   - reg
   74   - interrupts
   75 
   76 unevaluatedProperties: false
   77 
   78 examples:
   79   - |
   80     dma-controller@12680000 {
   81         compatible = "arm,pl330", "arm,primecell";
   82         reg = <0x12680000 0x1000>;
   83         interrupts = <99>;
   84         #dma-cells = <1>;
   85     };
   86 ...

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sys/contrib/device-tree/Bindings/dma/arm,pl330.yaml