1* Hisilicon K3 DMA controller
2
3See dma.txt first
4
5Required properties:
6- compatible: Should be "hisilicon,k3-dma-1.0"
7- reg: Should contain DMA registers location and length.
8- interrupts: Should contain one interrupt shared by all channel
9- #dma-cells: see dma.txt, should be 1, para number
10- dma-channels: physical channels supported
11- dma-requests: virtual channels supported, each virtual channel
12		have specific request line
13- clocks: clock required
14
15Example:
16
17Controller:
18		dma0: dma@fcd02000 {
19			compatible = "hisilicon,k3-dma-1.0";
20			reg = <0xfcd02000 0x1000>;
21			#dma-cells = <1>;
22			dma-channels = <16>;
23			dma-requests = <27>;
24			interrupts = <0 12 4>;
25			clocks = <&pclk>;
26		};
27
28Client:
29Use specific request line passing from dmax
30For example, i2c0 read channel request line is 18, while write channel use 19
31
32		i2c0: i2c@fcb08000 {
33			compatible = "snps,designware-i2c";
34			dmas =	<&dma0 18          /* read channel */
35				 &dma0 19>;        /* write channel */
36			dma-names = "rx", "tx";
37		};
38
39		i2c1: i2c@fcb09000 {
40			compatible = "snps,designware-i2c";
41			dmas =	<&dma0 20          /* read channel */
42				 &dma0 21>;        /* write channel */
43			dma-names = "rx", "tx";
44		};
45
46