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Documentation / devicetree / bindings / dma / tegra20-apbdma.txt




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

1	* NVIDIA Tegra APB DMA controller
2	
3	Required properties:
4	- compatible: Should be "nvidia,<chip>-apbdma"
5	- reg: Should contain DMA registers location and length. This shuld include
6	  all of the per-channel registers.
7	- interrupts: Should contain all of the per-channel DMA interrupts.
8	- clocks: Must contain one entry, for the module clock.
9	  See ../clocks/clock-bindings.txt for details.
10	- resets : Must contain an entry for each entry in reset-names.
11	  See ../reset/reset.txt for details.
12	- reset-names : Must include the following entries:
13	  - dma
14	- #dma-cells : Must be <1>. This dictates the length of DMA specifiers in
15	  client nodes' dmas properties. The specifier represents the DMA request
16	  select value for the peripheral. For more details, consult the Tegra TRM's
17	  documentation of the APB DMA channel control register REQ_SEL field.
18	
19	Examples:
20	
21	apbdma: dma@6000a000 {
22		compatible = "nvidia,tegra20-apbdma";
23		reg = <0x6000a000 0x1200>;
24		interrupts = < 0 136 0x04
25			       0 137 0x04
26			       0 138 0x04
27			       0 139 0x04
28			       0 140 0x04
29			       0 141 0x04
30			       0 142 0x04
31			       0 143 0x04
32			       0 144 0x04
33			       0 145 0x04
34			       0 146 0x04
35			       0 147 0x04
36			       0 148 0x04
37			       0 149 0x04
38			       0 150 0x04
39			       0 151 0x04 >;
40		clocks = <&tegra_car 34>;
41		resets = <&tegra_car 34>;
42		reset-names = "dma";
43		#dma-cells = <1>;
44	};
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