moxa,moxart-dma.txt

 1MOXA ART DMA Controller
 2
 3See dma.txt first
 4
 5Required properties:
 6
 7- compatible :	Must be "moxa,moxart-dma"
 8- reg :		Should contain registers location and length
 9- interrupts :	Should contain an interrupt-specifier for the sole
10		interrupt generated by the device
11- #dma-cells :	Should be 1, a single cell holding a line request number
12
13Example:
14
15	dma: dma@90500000 {
16		compatible = "moxa,moxart-dma";
17		reg = <0x90500080 0x40>;
18		interrupts = <24 0>;
19		#dma-cells = <1>;
20	};
21
22
23Clients:
24
25DMA clients connected to the MOXA ART DMA controller must use the format
26described in the dma.txt file, using a two-cell specifier for each channel:
27a phandle plus one integer cells.
28The two cells in order are:
29
301. A phandle pointing to the DMA controller.
312. Peripheral identifier for the hardware handshaking interface.
32
33Example:
34Use specific request line passing from dma
35For example, MMC request line is 5
36
37	mmc: mmc@98e00000 {
38		compatible = "moxa,moxart-mmc";
39		reg = <0x98e00000 0x5C>;
40		interrupts = <5 0>;
41		clocks = <&clk_apb>;
42		dmas =  <&dma 5>,
43			<&dma 5>;
44		dma-names = "tx", "rx";
45	};