bindings/dma/loongson,ls2x-apbdma.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/dma/loongson,ls2x-apbdma.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Loongson LS2X APB DMA controller
   8
   9 description:
  10   The Loongson LS2X APB DMA controller is used for transferring data
  11   between system memory and the peripherals on the APB bus.
  12
  13 maintainers:
  14   - Binbin Zhou <zhoubinbin@loongson.cn>
  15
  16 allOf:
  17   - $ref: dma-controller.yaml#
  18
  19 properties:
  20   compatible:
  21     oneOf:
  22       - const: loongson,ls2k1000-apbdma
  23       - items:
  24           - const: loongson,ls2k0500-apbdma
  25           - const: loongson,ls2k1000-apbdma
  26
  27   reg:
  28     maxItems: 1
  29
  30   interrupts:
  31     maxItems: 1
  32
  33   clocks:
  34     maxItems: 1
  35
  36   '#dma-cells':
  37     const: 1
  38
  39 required:
  40   - compatible
  41   - reg
  42   - interrupts
  43   - clocks
  44   - '#dma-cells'
  45
  46 additionalProperties: false
  47
  48 examples:
  49   - |
  50     #include <dt-bindings/interrupt-controller/irq.h>
  51     #include <dt-bindings/clock/loongson,ls2k-clk.h>
  52
  53     dma-controller@1fe00c00 {
  54         compatible = "loongson,ls2k1000-apbdma";
  55         reg = <0x1fe00c00 0x8>;
  56         interrupt-parent = <&liointc1>;
  57         interrupts = <12 IRQ_TYPE_LEVEL_HIGH>;
  58         clocks = <&clk LOONGSON2_APB_CLK>;
  59         #dma-cells = <1>;
  60     };
  61
  62 ...