| Texas Instruments DaVinci McBSP module |
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| |
| This binding describes the "Multi-channel Buffered Serial Port" (McBSP) |
| audio interface found in some TI DaVinci processors like the OMAP-L138 or AM180x. |
| |
| |
| Required properties: |
| ~~~~~~~~~~~~~~~~~~~~ |
| - compatible : |
| "ti,da850-mcbsp" : for DA850, AM180x and OPAM-L138 platforms |
| |
| - reg : physical base address and length of the controller memory mapped |
| region(s). |
| - reg-names : Should contain: |
| * "mpu" for the main registers (required). |
| * "dat" for the data FIFO (optional). |
| |
| - dmas: three element list of DMA controller phandles, DMA request line and |
| TC channel ordered triplets. |
| - dma-names: identifier string for each DMA request line in the dmas property. |
| These strings correspond 1:1 with the ordered pairs in dmas. The dma |
| identifiers must be "rx" and "tx". |
| |
| Optional properties: |
| ~~~~~~~~~~~~~~~~~~~~ |
| - interrupts : Interrupt numbers for McBSP |
| - interrupt-names : Known interrupt names are "rx" and "tx" |
| |
| - pinctrl-0: Should specify pin control group used for this controller. |
| - pinctrl-names: Should contain only one value - "default", for more details |
| please refer to pinctrl-bindings.txt |
| |
| Example (AM1808): |
| ~~~~~~~~~~~~~~~~~ |
| |
| mcbsp0: mcbsp@1d10000 { |
| compatible = "ti,da850-mcbsp"; |
| pinctrl-names = "default"; |
| pinctrl-0 = <&mcbsp0_pins>; |
| |
| reg = <0x00110000 0x1000>, |
| <0x00310000 0x1000>; |
| reg-names = "mpu", "dat"; |
| interrupts = <97 98>; |
| interrupt-names = "rx", "tx"; |
| dmas = <&edma0 3 1 |
| &edma0 2 1>; |
| dma-names = "tx", "rx"; |
| status = "okay"; |
| }; |
