T2080 DDR Validation DMA Test Fail

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T2080 DDR Validation DMA Test Fail

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grauber
Contributor I

Hi,

I'm working on a custom board with a T2080 processor, and I'm facing issues with DMA to the DDR.

I managed to succeed in finding a working configuration for the DDR3 Controller, and I get positive results of all of QCVS' DDR Validation Tool Operational Tests, except for the DMA test.

The DDR Validation Tool DMA test always fails, and so does our own code whenever a DMA is requested. A log with the error and DEBUG registers from QCVS is attached.

What DDR Controller configurations can impact DMA the most? Is there any suggestion in particular for this kind of issue?

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