threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
30 lines
1.0 KiB
Plaintext
30 lines
1.0 KiB
Plaintext
* 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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