AnsweredAssumed Answered

LS1021A eDMA engine did not work correctly

Question asked by li ang on Jun 13, 2017
Latest reply on Jun 21, 2017 by Yiping Wang
We are trying to use fsl-edma engine, but it did not work correctly, it has been in processing state until the tx task to be killed.
And then, we are trying to use dmatest.ko module, attempt to prove the fsl-edma works well, but get same result.
We are reference linux\documentation\dmaengine\dmatest.txt & client.txt in the debugging process.
According to the debugging info within the fsl-edma.c, we found that the dma src-addr & dst-addr have been set correctly, and the dma-request has been enabled.
Does anyone could make some suggestion, or provide a proven method, thanks for your attention.