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29 lines
1.0 KiB
29 lines
1.0 KiB
* 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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