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ECSPI DMA support for MAX14830

Question asked by Surendra Dhobale on Jan 2, 2018
Latest reply on Jan 3, 2018 by igorpadykov


        As we facing the issue of the rxoverrun for spi-uart exapnder chip 14830, looking for the use of DMA for the same so that cpu overhead will reduce and communication will be faster.

Then we will check the ovevrrun is happening or not for MAX14830.

What could be the approach to use DMA ?

I have enabled dma for the ecspi. but still it using the pio mode in the spi-imx driver.

As max14830 is slave device in the communication, is we need to implement anything in max310x driver for the DMA burst mechanism ?


Please help.