Lars-Peter Clausen | 00e6cb2 | 2013-12-06 11:02:49 +0100 | [diff] [blame] | 1 | ADI AXI-I2S controller |
| 2 | |
| 3 | Required 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 | |
| 16 | For more details on the 'dma', 'dma-names', 'clock' and 'clock-names' properties |
| 17 | please check: |
| 18 | * resource-names.txt |
| 19 | * clock/clock-bindings.txt |
| 20 | * dma/dma.txt |
| 21 | |
| 22 | Example: |
| 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 | }; |