Linux/AM3352: activate an Audiochip TLV320AIC3106 connected to an AM3352

Dear Biser, thank you for your reply. My colleagues checked this but they can´t find the right solution. I would like to get in contact with a FAE from TI but they play with me like a pinnball so I had no chance to send them my actuel schematic. May be with this someone can find the fault that I made. Here is also no chance to send an attachment.

Thank you again and

have a nice weekend!

Hi,

You can post here the portion of the schematic that includes the McASP connections on the AM335x side and the codec side. Please post in PDF format. To attach a file you need to click on the "Insert Code, Attach Files and more... " below the reply window. This will switch the window to enhanced mode and you will find the buttons used for attaching files.

Hi Biser, I tried to attach my schematic pdf. But I don´t know if it works.

22abk-011.pdf

Yes, it works. I will check and reply here.

Hi,

The hardware seems OK. This is probably a software configuration issue. Can you post the Linux version you use, pinmux configuration, and device tree settings?

Hi Biser, thank you very much for your help. My colleagues are very buy and they need som time to prepare the stuff. May be we will reply next weekend.

Thank you again and may regards!

Reiner

Hi Biser,

attached our Device tree. We build the system with yocto. All other parts are working fine. 

msd3.dts.pdf

Thanks for your help and sorry for the delay. Michael (Reiner colleague)

Hi user771915,

In you DTS file I can see:

AM33XX_IOPAD(0x99C, PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* mcasp0_ahclkr.mcasp0_axr2 */

You need to change that line from MUX_MODE1 to MUX_MODE2.


AM33XX_IOPAD(0x9AC, PIN_INPUT_PULLDOWN | MUX_MODE0) /* mcasp0_ahclkx */

You are providing MCLK from AIC3106 to AM335x McASP0 ahclkx port. This does not look correct to me. You need to provide the correct clock to AIC3106 MCLK port (from AM335x pin or from external clock source), thus AIC3106 to be able to produce the BCLK and WCLK.

In AM335x StarterKit board, AIC3106 MCLK is supplied by AM335x D14 pin (clkout2).

In AM335x EVM board, AIC3106 MCLK is supplied by external clock source.

Regards,
Pavel