1 * MARVELL MMP DMA controller
3 Marvell Peripheral DMA Controller
4 Used platfroms: pxa688, pxa910, pxa3xx, etc
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 - #dma-channels: Number of DMA channels supported by the controller.
14 Used platfroms: pxa25x, pxa27x, pxa3xx, pxa93x, pxa168, pxa910, pxa688.
19 * Each channel has specific irq
20 * ICU parse out irq channel from ICU register,
21 * while DMA controller may not able to distinguish the irq channel
22 * Using this method, interrupt-parent is required as demuxer
23 * For example, pxa688 icu register 0x128, bit 0~15 is PDMA channel irq,
26 pdma: dma-controller@d4000000 {
27 compatible = "marvell,pdma-1.0";
28 reg = <0xd4000000 0x10000>;
29 interrupts = <0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15>;
30 interrupt-parent = <&intcmux32>;
35 * One irq for all channels
36 * Dmaengine driver (DMA controller) distinguish irq channel via
37 * parsing internal register
39 pdma: dma-controller@d4000000 {
40 compatible = "marvell,pdma-1.0";
41 reg = <0xd4000000 0x10000>;
47 Marvell Two Channel DMA Controller used specifically for audio
48 Used platfroms: pxa688, pxa910
51 - compatible: Should be "marvell,adma-1.0" or "marvell,pxa910-squ"
52 - reg: Should contain DMA registers location and length.
53 - interrupts: Either contain all of the per-channel DMA interrupts
54 or one irq for dma device
56 "marvell,adma-1.0" used on pxa688
57 "marvell,pxa910-squ" used on pxa910
61 /* each channel has specific irq */
62 adma0: dma-controller@d42a0800 {
63 compatible = "marvell,adma-1.0";
64 reg = <0xd42a0800 0x100>;
66 interrupt-parent = <&intcmux32>;
69 /* One irq for all channels */
70 squ: dma-controller@d42a0800 {
71 compatible = "marvell,pxa910-squ";
72 reg = <0xd42a0800 0x100>;