xref: /freebsd/sys/contrib/device-tree/Bindings/dma/xilinx/zynqmp_dma.txt (revision e6bfd18d21b225af6a0ed67ceeaf1293b7b9eba5)
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