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Lars-Peter Clausen00e6cb22013-12-06 11:02:49 +01001ADI AXI-I2S controller
2
3Required properties:
4 - compatible : Must be "adi,axi-i2s-1.00.a"
5 - reg : Must contain I2S core's registers location and length
6 - clocks : Pairs of phandle and specifier referencing the controller's clocks.
7 The controller expects two clocks, the clock used for the AXI interface and
8 the clock used as the sampling rate reference clock sample.
9 - clock-names : "axi" for the clock to the AXI interface, "ref" for the sample
10 rate reference clock.
11 - dmas: Pairs of phandle and specifier for the DMA channels that are used by
12 the core. The core expects two dma channels, one for transmit and one for
13 receive.
14 - dma-names : "tx" for the transmit channel, "rx" for the receive channel.
15
16For more details on the 'dma', 'dma-names', 'clock' and 'clock-names' properties
17please check:
18 * resource-names.txt
19 * clock/clock-bindings.txt
20 * dma/dma.txt
21
22Example:
23
24 i2s: i2s@0x77600000 {
25 compatible = "adi,axi-i2s-1.00.a";
26 reg = <0x77600000 0x1000>;
27 clocks = <&clk 15>, <&audio_clock>;
28 clock-names = "axi", "ref";
29 dmas = <&ps7_dma 0>, <&ps7_dma 1>;
30 dma-names = "tx", "rx";
31 };