1* MARVELL MMP DMA controller
2
3Marvell Peripheral DMA Controller
4Used platforms: pxa688, pxa910, pxa3xx, etc
5
6Required properties:
7- compatible: Should be "marvell,pdma-1.0"
8- reg: Should contain DMA registers location and length.
9- interrupts: Either contain all of the per-channel DMA interrupts
10		or one irq for pdma device
11
12Optional properties:
13- dma-channels: Number of DMA channels supported by the controller (defaults
14  to 32 when not specified)
15- #dma-channels: deprecated
16- dma-requests: Number of DMA requestor lines supported by the controller
17  (defaults to 32 when not specified)
18- #dma-requests: deprecated
19
20"marvell,pdma-1.0"
21Used platforms: pxa25x, pxa27x, pxa3xx, pxa93x, pxa168, pxa910, pxa688.
22
23Examples:
24
25/*
26 * Each channel has specific irq
27 * ICU parse out irq channel from ICU register,
28 * while DMA controller may not able to distinguish the irq channel
29 * Using this method, interrupt-parent is required as demuxer
30 * For example, pxa688 icu register 0x128, bit 0~15 is PDMA channel irq,
31 * 18~21 is ADMA irq
32 */
33pdma: dma-controller@d4000000 {
34	      compatible = "marvell,pdma-1.0";
35	      reg = <0xd4000000 0x10000>;
36	      interrupts = <0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15>;
37	      interrupt-parent = <&intcmux32>;
38	      dma-channels = <16>;
39      };
40
41/*
42 * One irq for all channels
43 * Dmaengine driver (DMA controller) distinguish irq channel via
44 * parsing internal register
45 */
46pdma: dma-controller@d4000000 {
47	      compatible = "marvell,pdma-1.0";
48	      reg = <0xd4000000 0x10000>;
49	      interrupts = <47>;
50	      dma-channels = <16>;
51      };
52
53
54Marvell Two Channel DMA Controller used specifically for audio
55Used platforms: pxa688, pxa910
56
57Required properties:
58- compatible: Should be "marvell,adma-1.0" or "marvell,pxa910-squ"
59- reg: Should contain DMA registers location and length.
60- interrupts: Either contain all of the per-channel DMA interrupts
61		or one irq for dma device
62
63"marvell,adma-1.0" used on pxa688
64"marvell,pxa910-squ" used on pxa910
65
66Examples:
67
68/* each channel has specific irq */
69adma0: dma-controller@d42a0800 {
70	      compatible = "marvell,adma-1.0";
71	      reg = <0xd42a0800 0x100>;
72	      interrupts = <18 19>;
73	      interrupt-parent = <&intcmux32>;
74      };
75
76/* One irq for all channels */
77squ: dma-controller@d42a0800 {
78	      compatible = "marvell,pxa910-squ";
79	      reg = <0xd42a0800 0x100>;
80	      interrupts = <46>;
81      };
82