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i.MX6 spi slave with sdma

Question asked by Pazzo Da Legare on Jun 19, 2018
Latest reply on Jun 20, 2018 by Pazzo Da Legare

Dear all,

I'm looking for support  for spi slave with sdma. Do you have any suggestion?

I know that there's around a patch to use ecspi as spi slave in pio mode (something like [RFC,5/5] spi: imx: Add support for SPI Slave mode for imx53 and imx6 chips - Patchwork ) and I gave it a try. But I would like to use the ecspi to receive a fast stream of data.
I had a look at sdma hacking articles (Jonah's Blog by skrap and Freescale i.MX SDMA tutorial (part I)) and it could be a way to implement something but I wonder if NXP guys could suggest something more standard using current sdma driver.


Thank you for your help,