35 lines
1.1 KiB
Plaintext
35 lines
1.1 KiB
Plaintext
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# Copyright 2023 NXP
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# SPDX-License-Identifier: Apache-2.0
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config DMA_NXP_SOF_HOST_DMA
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bool "NXP DMA driver used by SOF's host component"
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default y
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depends on DT_HAS_NXP_SOF_HOST_DMA_ENABLED
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help
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Enable NXP's DMA driver used by
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SOF (Sound Open Firmware) host
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component. Specifically, this driver
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is used by the SOF host component to
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perform transfers between the host
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memory and firmware (local) memory, which
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can be accessed without an actual
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DMA engine.
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if DMA_NXP_SOF_HOST_DMA
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config DMA_NXP_SOF_HOST_DMA_ALIGN
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int "Alignment (in bytes) required for memory regions passed to this driver"
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default 8
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help
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Use this to set the alignment (in bytes)
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which shall be used by entities employing
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this driver to adjust a memory region's size
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and base address. Since this driver doesn't
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actually have any hardware to back it up this
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configuration doesn't make much sense as there's
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no alignment restrictions imposed by memcpy.
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Nevertheless, this is needed because this driver
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needs to act as if it controls a DMA engine.
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endif # DMA_NXP_SOF_HOST_DMA
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