30 lines
1 KiB
Plaintext
30 lines
1 KiB
Plaintext
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* Freescale MPC512x and MPC8308 DMA Controller
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The DMA controller in Freescale MPC512x and MPC8308 SoCs can move
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blocks of memory contents between memory and peripherals or
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from memory to memory.
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Refer to "Generic DMA Controller and DMA request bindings" in
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the dma/dma.txt file for a more detailed description of binding.
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Required properties:
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- compatible: should be "fsl,mpc5121-dma" or "fsl,mpc8308-dma";
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- reg: should contain the DMA controller registers location and length;
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- interrupt for the DMA controller: syntax of interrupt client node
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is described in interrupt-controller/interrupts.txt file.
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- #dma-cells: the length of the DMA specifier, must be <1>.
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Each channel of this DMA controller has a peripheral request line,
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the assignment is fixed in hardware. This one cell
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in dmas property of a client device represents the channel number.
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Example:
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dma0: dma@14000 {
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compatible = "fsl,mpc5121-dma";
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reg = <0x14000 0x1800>;
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interrupts = <65 0x8>;
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#dma-cells = <1>;
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};
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DMA clients must use the format described in dma/dma.txt file.
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