SDAA199 December   2025 AM620-Q1 , AM625 , AM625-Q1 , AM62A3 , AM62A3-Q1 , AM62A7 , AM62A7-Q1 , AM62P , AM62P-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Software Architecture
  6. 3 Sound Card Information
  7. 4 McASP - External Signals
  8. 5 MCASP Clock Generation and Configurations
  9. 6 Dummy Sound Card DTS Changes
  10. 7 Single DAI Link or a Single Sound Card
  11. 8 Multiple DAI Links - Single Card but Multiple Sub-Devices
  12. 9 MCASP - Practical Examples
  13. 10McASP as a Receiver
    1. 10.1 ADC or Codec as Clock Master
    2. 10.2 Device Tree Changes - Codec as Master and MCASP as Slave
  14. 11MCASP as Transmitter
    1. 11.1 Device Tree Changes - With Codec as Slave and MCASP as Master
  15. 12References

7 Single DAI Link or a Single Sound Card

-------------------------------------------
Example 1 - single DAI link:
-------------------------------------------
 
sound {
    compatible = "simple-audio-card";
    simple-audio-card,name = "VF610-Tower-Sound-Card";
    simple-audio-card,format = "left_j";
    simple-audio-card,bitclock-master = <&dailink0_master>;
    simple-audio-card,frame-master = <&dailink0_master>;
    simple-audio-card,widgets =
        "Microphone", "Microphone Jack",
        "Headphone", "Headphone Jack",
        "Speaker", "External Speaker";
    simple-audio-card,routing =
        "MIC_IN", "Microphone Jack",
        "Headphone Jack", "HP_OUT",
        "External Speaker", "LINE_OUT";
 
    simple-audio-card,cpu {
        sound-dai = <&sh_fsi2 0>;
    };
 
    dailink0_master: simple-audio-card,codec {
        sound-dai = <&ak4648>;
        clocks = <&osc>;
    };
};