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b8101048f0
To reflect the final devicetree node structure of McBSPs. The initial OMAP McBSP DT structure was not able to describe the IP (and it's versions) correctly. The main issue was the sidetone block of McBSP2/3 on OMAP3. With this change in the DT description the OS can get the needed information about the IP. The sidetone is still not supported when the Linux kernel is booted with DT since we still depend on hwmod to fill the resources. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
38 lines
1.3 KiB
Plaintext
38 lines
1.3 KiB
Plaintext
* Texas Instruments OMAP2+ McBSP module
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Required properties:
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- compatible: "ti,omap2420-mcbsp" for McBSP on OMAP2420
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"ti,omap2430-mcbsp" for McBSP on OMAP2430
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"ti,omap3-mcbsp" for McBSP on OMAP3
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"ti,omap4-mcbsp" for McBSP on OMAP4 and newer SoC
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- reg: Register location and size, for OMAP4+ as an array:
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<MPU access base address, size>,
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<L3 interconnect address, size>;
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- reg-names: Array of strings associated with the address space
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- interrupts: Interrupt numbers for the McBSP port, as an array in case the
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McBSP IP have more interrupt lines:
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<OCP compliant irq>,
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<TX irq>,
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<RX irq>;
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- interrupt-names: Array of strings associated with the interrupt numbers
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- interrupt-parent: The parent interrupt controller
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- ti,buffer-size: Size of the FIFO on the port (OMAP2430 and newer SoC)
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- ti,hwmods: Name of the hwmod associated to the McBSP port
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Example:
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mcbsp2: mcbsp@49022000 {
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compatible = "ti,omap3-mcbsp";
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reg = <0x49022000 0xff>,
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<0x49028000 0xff>;
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reg-names = "mpu", "sidetone";
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interrupts = <0 17 0x4>, /* OCP compliant interrupt */
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<0 62 0x4>, /* TX interrupt */
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<0 63 0x4>, /* RX interrupt */
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<0 4 0x4>; /* Sidetone */
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interrupt-names = "common", "tx", "rx", "sidetone";
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interrupt-parent = <&intc>;
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ti,buffer-size = <1280>;
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ti,hwmods = "mcbsp2";
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};
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