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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/adi,axi-dmac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AXI-DMAC DMA controller
+
+description: |
+ FPGA-based DMA controller designed for use with high-speed converter hardware.
+
+ http://analogdevicesinc.github.io/hdl/library/axi_dmac/index.html
+
+maintainers:
+ - Nuno Sa <nuno.sa@analog.com>
+
+additionalProperties: false
+
+properties:
+ compatible:
+ const: adi,axi-dmac-1.00.a
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ "#dma-cells":
+ const: 1
+
+ adi,channels:
+ deprecated: true
+ type: object
+ description:
+ This sub-node must contain a sub-node for each DMA channel. This node is
+ only required for IP versions older than 4.3.a and should otherwise be
+ omitted.
+ additionalProperties: false
+
+ properties:
+ "#size-cells":
+ const: 0
+ "#address-cells":
+ const: 1
+
+ patternProperties:
+ "^dma-channel@[0-9a-f]+$":
+ type: object
+ description:
+ DMA channel properties based on HDL compile-time configuration.
+ additionalProperties: false
+
+ properties:
+ reg:
+ maxItems: 1
+
+ adi,source-bus-width:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Width of the source bus in bits.
+ enum: [8, 16, 32, 64, 128]
+
+ adi,destination-bus-width:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Width of the destination bus in bits.
+ enum: [8, 16, 32, 64, 128]
+
+ adi,source-bus-type:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ Type of the source bus.
+
+ 0: Memory mapped AXI interface
+ 1: Streaming AXI interface
+ 2: FIFO interface
+ enum: [0, 1, 2]
+
+ adi,destination-bus-type:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Type of the destination bus (see adi,source-bus-type).
+ enum: [0, 1, 2]
+
+ adi,length-width:
+ deprecated: true
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Width of the DMA transfer length register.
+
+ adi,cyclic:
+ deprecated: true
+ type: boolean
+ description:
+ Must be set if the channel supports hardware cyclic DMA transfers.
+
+ adi,2d:
+ deprecated: true
+ type: boolean
+ description:
+ Must be set if the channel supports hardware 2D DMA transfers.
+
+ required:
+ - reg
+ - adi,source-bus-width
+ - adi,destination-bus-width
+ - adi,source-bus-type
+ - adi,destination-bus-type
+
+ required:
+ - "#size-cells"
+ - "#address-cells"
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - "#dma-cells"
+
+examples:
+ - |
+ dma-controller@7c420000 {
+ compatible = "adi,axi-dmac-1.00.a";
+ reg = <0x7c420000 0x10000>;
+ interrupts = <0 57 0>;
+ clocks = <&clkc 16>;
+ #dma-cells = <1>;
+ };