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Need audio support for i.MX6UltraLite Eval kit

Question asked by Ashish Pandit on Jul 27, 2017
Latest reply on Jul 31, 2017 by Vitaliy Avramenko

We are using MCIMX6UL-EVK: i.MX6UltraLite Evaluation Kit and trying to make Audio work for our system that is operating BSP from Freescale (root@OpenWrt:/usr/media# cat /proc/version

Linux version 4.1.15-224177-gdeb84cd-dirty (ubuntu@ubuntu) (gcc version 4.8.3 (OpenWrt/Linaro GCC 4.8-2014.04 r49363) ) #59 Wed Jul 26 12:08:44 EEST 2017


Linux core on our controller board can detect the IC correctly and create a sound.

[    1.911691] imx-wm8960 sound: wm8960-hifi <-> 202c000.sai mapping ok

[    1.921954] imx-wm8960 sound: snd-soc-dummy-dai <-> 2034000.asrc mapping ok

[    1.929720] imx-wm8960 sound: wm8960-hifi <-> 202c000.sai mapping ok

[    2.266162]   #0: wm8960-audio


Then we installed the necessary ALSA utils to test the sound.

ALSAMIXER allows us to adjust the volume.

However, we can't play the sound. It fails


aplay piano2.wav

Playing WAVE 'piano2.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo

aplay: pcm_write:1939: write error: Input/output error


any ideas?