ALSA for SoC audio support - Hawkboard , no soundcards found...

Hello,

i try to enable the onboard soundcodec on a hawkboard.


At kernelstartup is the following output:

[...]
Advanced Linux Sound Architecture Driver Version 1.0.21.
No device for DAI tlv320aic3x
asoc: tlv320aic3x <-> davinci-i2s mapping ok
ALSA device list:
  #0: DA850/OMAP-L138 EVM (tlv320aic3x)
[...]

In the proc fs is the soundcard available:

#cat /proc/asound/card0/pcm0p/info

hawk@Alok-PC:~$ cat /proc/asound/card0/pcm0p/info
card: 0
device: 0
subdevice: 0
stream: PLAYBACK
id: AIC3X tlv320aic3x-0
name:
subname: subdevice #0
class: 0
subclass: 0
subdevices_count: 1
subdevices_avail: 1


The alsa utils don´t recognize the sound device!

#aplay -l
aplay: device_list:223: no soundcards found...

Any ideas how to get this working?
Whats todo for sound-specific content in the /dev folder?

Thank you very much.