xref: /freebsd/sys/contrib/device-tree/Bindings/dma/mpc512x-dma.txt (revision 924226fba12cc9a228c73b956e1b7fa24c60b055)
1* Freescale MPC512x and MPC8308 DMA Controller
2
3The DMA controller in Freescale MPC512x and MPC8308 SoCs can move
4blocks of memory contents between memory and peripherals or
5from memory to memory.
6
7Refer to "Generic DMA Controller and DMA request bindings" in
8the dma/dma.txt file for a more detailed description of binding.
9
10Required properties:
11- compatible: should be "fsl,mpc5121-dma" or "fsl,mpc8308-dma";
12- reg: should contain the DMA controller registers location and length;
13- interrupt for the DMA controller: syntax of interrupt client node
14	is described in interrupt-controller/interrupts.txt file.
15- #dma-cells: the length of the DMA specifier, must be <1>.
16	Each channel of this DMA controller has a peripheral request line,
17	the assignment is fixed in hardware. This one cell
18	in dmas property of a client device represents the channel number.
19
20Example:
21
22	dma0: dma@14000 {
23		compatible = "fsl,mpc5121-dma";
24		reg = <0x14000 0x1800>;
25		interrupts = <65 0x8>;
26		#dma-cells = <1>;
27	};
28
29DMA clients must use the format described in dma/dma.txt file.
30