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e5ec69da24
The OMAP2+ variant of McASP is different from Davinci variant w.r.to
some register offset.
Changes
- Add new MCASP_VERSION_3 to identify new variant. New DT compatible
"ti,omap2-mcasp-audio" to identify version 3 controller.
- The register offsets are handled depending on the version.
Note:
DMA parameters (dma fifo offset) are not updated and will be done later.
Signed-off-by: Hebbar, Gururaja <gururaja.hebbar@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
46 lines
1.3 KiB
Plaintext
46 lines
1.3 KiB
Plaintext
Texas Instruments McASP controller
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Required properties:
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- compatible :
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"ti,dm646x-mcasp-audio" : for DM646x platforms
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"ti,da830-mcasp-audio" : for both DA830 & DA850 platforms
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"ti,omap2-mcasp-audio" : for OMAP2 platforms (TI81xx, AM33xx)
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- reg : Should contain McASP registers offset and length
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- interrupts : Interrupt number for McASP
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- op-mode : I2S/DIT ops mode.
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- tdm-slots : Slots for TDM operation.
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- num-serializer : Serializers used by McASP.
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- serial-dir : A list of serializer pin mode. The list number should be equal
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to "num-serializer" parameter. Each entry is a number indication
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serializer pin direction. (0 - INACTIVE, 1 - TX, 2 - RX)
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Optional properties:
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- ti,hwmods : Must be "mcasp<n>", n is controller instance starting 0
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- tx-num-evt : FIFO levels.
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- rx-num-evt : FIFO levels.
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- sram-size-playback : size of sram to be allocated during playback
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- sram-size-capture : size of sram to be allocated during capture
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Example:
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mcasp0: mcasp0@1d00000 {
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compatible = "ti,da830-mcasp-audio";
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0x100000 0x3000>;
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interrupts = <82 83>;
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op-mode = <0>; /* MCASP_IIS_MODE */
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tdm-slots = <2>;
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num-serializer = <16>;
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serial-dir = <
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0 0 0 0 /* 0: INACTIVE, 1: TX, 2: RX */
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0 0 0 0
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0 0 0 1
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2 0 0 0 >;
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tx-num-evt = <1>;
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rx-num-evt = <1>;
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};
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