xref: /freebsd/sys/contrib/device-tree/Bindings/dma/xilinx/zynqmp_dma.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)

Xilinx ZynqMP DMA engine, it does support memory to memory transfers,
memory to device and device to memory transfers. It also has flow
control and rate control support for slave/peripheral dma access.

Required properties:
- compatible		: Should be "xlnx,zynqmp-dma-1.0"
- reg			: Memory map for gdma/adma module access.
- interrupts		: Should contain DMA channel interrupt.
- xlnx,bus-width	: Axi buswidth in bits. Should contain 128 or 64
- clock-names		: List of input clocks "clk_main", "clk_apb"
			  (see clock bindings for details)

Optional properties:
- dma-coherent		: Present if dma operations are coherent.

Example:
++++++++
fpd_dma_chan1: dma@fd500000 {
	compatible = "xlnx,zynqmp-dma-1.0";
	reg = <0x0 0xFD500000 0x1000>;
	interrupt-parent = <&gic>;
	interrupts = <0 117 4>;
	clock-names = "clk_main", "clk_apb";
	xlnx,bus-width = <128>;
	dma-coherent;
};