Hello Igor, On Wed, Mar 27, 2019 at 08:40:00PM +0300, Igor Plyatov wrote: > please, help to resolve two issues with SPI DMA transfers at i.MX6Q > platform. > > First issue is > [ 4465.008003] spi_master spi0: I/O Error in DMA RX > > Second issue is duplication for one of received bytes. > > Probably, these issues related to each one.
This is probably the same problem I hit some time ago. Check ERR009165 in the errata. You either need to disable DMA or need a fixed sdma-Script. Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ |
