We are porting a pair of I2S mics from the TX2 to the Xavier development board and I am having trouble getting I2S2_CLK (pin 12) to start up.
On the TX2 we used I2S4 on the camera connector and had to do the following:
amixer -c 1 cset name="I2S4 Mux" "ADMAIF1" amixer -c 1 cset name="ADMAIF1 Mux" "I2S4" gst-launch-1.0 -vvv alsasrc device=hw:1,0 \ ! 'audio/x-raw,format=S32LE,rate=48000,channels=2' \ ....
I tried doing something similar on the Xavier, but with I2S2 instead of I2S4, but no luck. Could someone list the steps for sampling from a simple I2S device on the 40-pin header?