Messages in this thread | | | Date | Thu, 28 Mar 2019 07:52:47 +0100 | From | Uwe Kleine-König <> | Subject | Re: Issues with i.MX SPI DMA transfers |
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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/ |
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