Details
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Type:
Bug
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Status: Resolved
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Priority:
Minor
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Resolution: Won't Fix
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Affects Version/s: V2.0.0.0, V2.0.1.0, V2.1.0.0, V2.1.1.0
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Fix Version/s: None
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Component/s: Linux Driver
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Labels:None
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Account:SDO Driver (SDODRIVER)
Description
Error message: "Unable to allocate requested DMA-capable block of size 0x--- (---) during mmap in uio."
The DMA memory allocation via dma_alloc_coherent() seem not to return the required 32bit address.
Workaround:
Use "dtoverlay=pcie-32bit-dma" in the config.txt file.