I downloaded dey-1.6.2, recompiled everything but still there is no SPI clock signal.
Have you run spidev_test application while checking the SPI_CLK pin with an oscilloscope?
Moreover I have a problem with ethernet which is somehow similar to this one:
"After a while (most of the time a couple of minutes), we see that the i.MX6 board stops replying to the pings from the Linux PC", but the RX packets counter in 'ifconfig" increments.
I had this problem before update, but after update I am not able to make ethernet working even for a while. Luckily Wi-Fi works fine.