ALSA for SoC audio support - omap-l137 evm , no soundcards found...

Hello,

i try to enable the onboard soundcodec on an omap l137-evm.
I compiled the kernel (2.6.29-rc8-davinci1-06020-ge28a1e2-dirty) with ALSA for SoC audio support.

          --- ALSA for SoC audio support                                                                     
                            <*>   SoC Audio for the TI DAVINCI chip                                                            
                            <*>   SoC Audio support for DA830/OMAP-L137 EVM                                                    
                            < >   Build all ASoC CODEC drivers                                                                 
                                                                      

At kernelstartup is the following output:

[...]
i2c /dev entries driver
Advanced Linux Sound Architecture Driver Version 1.0.18a.
No device for DAI tlv320aic3x
No device for DAI davinci-i2s
No device for DAI davinci-dit
AIC3X Audio Codec 0.2
asoc: tlv320aic3x <-> davinci-i2s mapping ok
ALSA device list:
  #0: DA830 EVM (tlv320aic3x)
TCP cubic registered
[...]

In the proc fs is the soundcard available:

#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.