1 Allwinner A10 DMA Controller
3 This driver follows the generic DMA bindings defined in dma.txt.
7 - compatible: Must be "allwinner,sun4i-a10-dma"
8 - reg: Should contain the registers base address and length
9 - interrupts: Should contain a reference to the interrupt used by this device
10 - clocks: Should contain a reference to the parent AHB clock
11 - #dma-cells : Should be 2, first cell denoting normal or dedicated dma,
12 second cell holding the request line number.
15 dma: dma-controller@1c02000 {
16 compatible = "allwinner,sun4i-a10-dma";
17 reg = <0x01c02000 0x1000>;
19 clocks = <&ahb_gates 6>;
25 DMA clients connected to the Allwinner A10 DMA controller must use the
26 format described in the dma.txt file, using a three-cell specifier for
27 each channel: a phandle plus two integer cells.
28 The three cells in order are:
30 1. A phandle pointing to the DMA controller.
31 2. Whether it is using normal (0) or dedicated (1) channels
32 3. The port ID as specified in the datasheet
36 compatible = "allwinner,sun4i-a10-spi";
37 reg = <0x01c17000 0x1000>;
38 interrupts = <0 12 4>;
39 clocks = <&ahb_gates 22>, <&spi2_clk>;
40 clock-names = "ahb", "mod";
41 dmas = <&dma 1 29>, <&dma 1 28>;
42 dma-names = "rx", "tx";