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Weird SPI behavior on iMx6 running 3.14 Linux kernel

Question asked by Tom Junkans on Nov 17, 2015
Latest reply on Aug 23, 2017 by Fabio Estevam

I have an iMx6 Quad board running SPI channel-2 using pins (CSI0_DAT10) for MISO, pin (EIM_CS1) for MOSI and pin (EIM_D24) for the Chip select.


I am seeing weird behavior with just this chip select where a valid 32-bit SPI transmit takes place to a slave SPI device. Than after some time running SPI OK the iMx6 locks the Ship Select signal active (low) forever. Killing the process of course, and killing all the fun.


Has anyone else seen any issues like this and/or has a fix?


Thanks a ton in advance.