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.
- interrupt-parent : Interrupt controller the interrupt is routed through
- 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;
};
