xref: /freebsd/sys/contrib/device-tree/Bindings/dma/xilinx/zynqmp_dma.txt (revision 90b5fc95832da64a5f56295e687379732c33718f)
1Xilinx ZynqMP DMA engine, it does support memory to memory transfers,
2memory to device and device to memory transfers. It also has flow
3control and rate control support for slave/peripheral dma access.
4
5Required properties:
6- compatible		: Should be "xlnx,zynqmp-dma-1.0"
7- reg			: Memory map for gdma/adma module access.
8- interrupts		: Should contain DMA channel interrupt.
9- xlnx,bus-width	: Axi buswidth in bits. Should contain 128 or 64
10- clock-names		: List of input clocks "clk_main", "clk_apb"
11			  (see clock bindings for details)
12
13Optional properties:
14- dma-coherent		: Present if dma operations are coherent.
15
16Example:
17++++++++
18fpd_dma_chan1: dma@fd500000 {
19	compatible = "xlnx,zynqmp-dma-1.0";
20	reg = <0x0 0xFD500000 0x1000>;
21	interrupt-parent = <&gic>;
22	interrupts = <0 117 4>;
23	clock-names = "clk_main", "clk_apb";
24	xlnx,bus-width = <128>;
25	dma-coherent;
26};
27