devicetree.dts version A

/dts-v1/;

#include "am33xx.dtsi"
#include "am335x-bone-common.dtsi"
#include "am335x-bonegreen-common.dtsi"
/* #include "am335x-bone-jtag.dtsi" */

&am33xx_pinmux {
  mostro_audio_pins: pinmux_mostro_audio_pins {
    pinctrl-single,pins = <
      0x190 0x20 /* BCLK P9.31 MUX_MODE0 (mcasp0_aclkx), INPUT_PULLDOWN */
      0x194 0x20 /* WCLK P9.29 MUX_MODE0 (mcasp0_fsx),  INPUT_PULLDOWN */
      0x198 0x20 /* DIN P9.30 MUX_MODE0 (mcasp0_axr0), INPUT_PULLDOWN */
      0x19c 0x02 /* DOUT P9.28 MUX_MODE2 (mcasp0_axr2), OUTPUT_PULLDOWN */
      0x1ac 0x20 /* MCLK P9.25 MUX_MODE0 (mcasp0_ahclkx), INPUT_PULLDOWN) */
      0x06c 0x07 /* Clock enable gpio1[27] MUX_MODE7, OUTPUT_PULLDOWN) */
    >;
  };

  i2c2_pins: pinmux_i2c2_pins {
    pinctrl-single,pins = <
      AM33XX_IOPAD(0x978, PIN_INPUT_PULLUP | MUX_MODE3) /* uart1_ctsn.i2c2_sda */
      AM33XX_IOPAD(0x97c, PIN_INPUT_PULLUP | MUX_MODE3) /* uart1_rtsn.i2c2_scl */
    >;
  };
};

&i2c2 {
  codec320: tlv320aic3104@18 {
    status = "okay";
    #sound-dai-cells = <0>;
    compatible = "ti,tlv320aic3104";
    reg = <0x18>;
  };
};

&mcasp0 {
  #sound-dai-cells = <0>;
  status = "okay";
  pinctrl-names = "default";
  pinctrl-0 = <&mostro_audio_pins>;
  op-mode = <0>; /* MCASP_IIS_MODE */
  tdm-slots = <2>;
  num-serializer = <16>;
  serial-dir = <  /* 0: INACTIVE, 1: TX, 2: RX */
    2 0 1 0
    0 0 0 0
    0 0 0 0
    0 0 0 0
  >;
  rx-num-evt = <1>;
  tx-num-evt = <1>;
};

/ {
  model = "TI AM335x BeagleBone Green";
  compatible = "ti,am335x-bone-green", "ti,am335x-bone-black", "ti,am335x-bone", "ti,am33xx";

  chosen {
    base_dtb = "am335x-bonegreen.dts";
    base_dtb_timestamp = __TIMESTAMP__;
  };

  clk_mcasp0_fixed: clk_mcasp0_fixed {
    #clock-cells = <0>;
    compatible = "fixed-clock";
    clock-frequency = <24576000>;
  };

  clk_mcasp0: clk_mcasp0 {
    #clock-cells = <0>;
    compatible = "gpio-gate-clock";
    clocks = <&clk_mcasp0_fixed>;
    enable-gpios = <&gpio1 27 0>; /* BeagleBone Black Clk enable on GPIO1_27, the actual clock is on gpio3[21] (P9.25) */
  };

  sound {
    status = "okay";
    compatible = "simple-audio-card";
    simple-audio-card,name = "Mostro Audio";

    simple-audio-card,widgets =
      "Headphone", "Headphone Jack",
      "Line", "Line In";

    simple-audio-card,routing =
      "Headphone Jack", "HPLOUT",
      "Headphone Jack", "HPROUT",
      "LINE1L", "Line In",
      "LINE1R", "Line In";

    simple-audio-card,dai-link {
      format = "dsp_b";
      bitclock-master = <&sndmaster>;
      frame-master = <&sndmaster>;
      bitclock-inversion;

      cpu {
        sound-dai = <&mcasp0>;
      };

      sndmaster:codec {
         sound-dai = <&codec320>;
         clocks = <&clk_mcasp0>;
         clock-names = "mclk";
       };
    };

  };
};

&sgx {
  status = "okay";
};

devicetree.dts version B

/dts-v1/;

#include "am33xx.dtsi"
#include "am335x-bone-common.dtsi"
#include "am335x-bonegreen-common.dtsi"
/* #include "am335x-bone-jtag.dtsi" */

&am33xx_pinmux {
  mostro_audio_pins: pinmux_mostro_audio_pins {
    pinctrl-single,pins = <
      0x190 0x20 /* BCLK P9.31 MUX_MODE0 (mcasp0_aclkx), INPUT_PULLDOWN */
      0x194 0x20 /* WCLK P9.29 MUX_MODE0 (mcasp0_fsx),  INPUT_PULLDOWN */
      0x198 0x20 /* DIN P9.30 MUX_MODE0 (mcasp0_axr0), INPUT_PULLDOWN */
      0x19c 0x02 /* DOUT P9.28 MUX_MODE2 (mcasp0_axr2), OUTPUT_PULLDOWN */
      0x1ac 0x20 /* MCLK P9.25 MUX_MODE0 (mcasp0_ahclkx), INPUT_PULLDOWN) */
      0x06c 0x07 /* Clock enable gpio1[27] MUX_MODE7, OUTPUT_PULLDOWN) */
    >;
  };

  i2c2_pins: pinmux_i2c2_pins {
    pinctrl-single,pins = <
      AM33XX_IOPAD(0x978, PIN_INPUT_PULLUP | MUX_MODE3) /* uart1_ctsn.i2c2_sda */
      AM33XX_IOPAD(0x97c, PIN_INPUT_PULLUP | MUX_MODE3) /* uart1_rtsn.i2c2_scl */
    >;
  };
};

&i2c2 {
  codec320: tlv320aic3104@18 {
    status = "okay";
    #sound-dai-cells = <0>;
    compatible = "ti,tlv320aic3104";
    reg = <0x18>;
  };
};

&mcasp0 {
  #sound-dai-cells = <0>;
  status = "okay";
  pinctrl-names = "default";
  pinctrl-0 = <&mostro_audio_pins>;
  op-mode = <0>; /* MCASP_IIS_MODE */
  tdm-slots = <2>;
  num-serializer = <16>;
  serial-dir = <  /* 0: INACTIVE, 1: TX, 2: RX */
    2 0 1 0
    0 0 0 0
    0 0 0 0
    0 0 0 0
  >;
  rx-num-evt = <1>;
  tx-num-evt = <1>;
};

/ {
  model = "TI AM335x BeagleBone Green";
  compatible = "ti,am335x-bone-green", "ti,am335x-bone-black", "ti,am335x-bone", "ti,am33xx";

  chosen {
    base_dtb = "am335x-bonegreen.dts";
    base_dtb_timestamp = __TIMESTAMP__;
  };

  clk_mcasp0_fixed: clk_mcasp0_fixed {
    #clock-cells = <0>;
    compatible = "fixed-clock";
    clock-frequency = <24576000>;
  };

  clk_mcasp0: clk_mcasp0 {
    #clock-cells = <0>;
    compatible = "gpio-gate-clock";
    clocks = <&clk_mcasp0_fixed>;
    /* enable-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>; /1* BeagleBone Black Clk enable on GPIO1_27, the actual clock is on gpio3[21] (P9.25) *1/ */
    enable-gpios = <&gpio1 27 0>; /* BeagleBone Black Clk enable on GPIO1_27, the actual clock is on gpio3[21] (P9.25) */
  };

  sound {
    status = "okay";
    compatible = "simple-audio-card";
    simple-audio-card,name = "Mostro Audio";

    simple-audio-card,widgets =
      "Headphone", "Headphone Jack",
      "Line", "Line In";

    simple-audio-card,routing =
      "Headphone Jack", "HPLOUT",
      "Headphone Jack", "HPROUT",
      "LINE1L", "Line In",
      "LINE1R", "Line In";

    simple-audio-card,format = "dsp_b";
    simple-audio-card,bitclock-master = <&sndmaster>;
    simple-audio-card,frame-master = <&sndmaster>;
    simple-audio-card,bitclock-inversion;

    simple-audio-card,cpu {
      sound-dai = <&mcasp0>;
      bitclock-inversion;
    };

    simple-audio-card,codec {
      sound-dai = <&codec320>;
      clocks = <&clk_mcasp0>;
      clock-names = "mclk";
      bitclock-master;
      frame-master;
      bitclock-inversion;
    };
  };
};

&sgx {
  status = "okay";
};