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Documentation / devicetree / bindings / dma / ti-edma.txt




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Based on kernel version 3.16. Page generated on 2014-08-06 21:36 EST.

1	TI EDMA
2	
3	Required properties:
4	- compatible : "ti,edma3"
5	- #dma-cells: Should be set to <1>
6	              Clients should use a single channel number per DMA request.
7	- reg: Memory map for accessing module
8	- interrupt-parent: Interrupt controller the interrupt is routed through
9	- interrupts: Exactly 3 interrupts need to be specified in the order:
10	              1. Transfer completion interrupt.
11	              2. Memory protection interrupt.
12	              3. Error interrupt.
13	Optional properties:
14	- ti,hwmods: Name of the hwmods associated to the EDMA
15	- ti,edma-xbar-event-map: Crossbar event to channel map
16	
17	Deprecated properties:
18	Listed here in case one wants to boot an old kernel with new DTB. These
19	properties might need to be added to the new DTS files.
20	- ti,edma-regions: Number of regions
21	- ti,edma-slots: Number of slots
22	- dma-channels: Specify total DMA channels per CC
23	
24	Example:
25	
26	edma: edma@49000000 {
27		reg = <0x49000000 0x10000>;
28		interrupt-parent = <&intc>;
29		interrupts = <12 13 14>;
30		compatible = "ti,edma3";
31		ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2";
32		#dma-cells = <1>;
33		ti,edma-xbar-event-map = /bits/ 16 <1 12
34						    2 13>;
35	};
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