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