dts/bindings/dma/arm,dma-pl330.yaml

# Copyright 2020 Broadcom
# SPDX-License-Identifier: Apache-2.0

description: PL330 DMA Controller

compatible: "arm,dma-pl330"

include: dma-controller.yaml

properties:
    reg:
      required: true
    microcode:
      type: array
      required: true
      description: microcode's physical memory address
    label:
      required: true
    "#dma-cells":
      const: 1

# Parameter syntax
dma-cells:
  - channel

description: |
  A phandle to the DMA controller plus "channel" integer cell specifying
  channel to be used for data transfer

  Example for pl330 DMA Controller
     pl330: pl330@48300000 {
                  compatible = "arm,dma-pl330";
                  ...
                  dma-channels = <8>;
                  #dma-cells = <1>;
                  label = "PL330";
            };

  If PCIe EP client uses channel 0 for Tx DMA and channel 1 for Rx DMA
     pcie0_ep: pcie@4e100000 {
                  compatible = "brcm,iproc-pcie-ep";
                  ...
                  dmas = <&pl330 0>, <&pl330 1>;
                  dma-names = "txdma", "rxdma";
                  label = "PCIE_0";
            };