label = "SW1";
                };
        };
+
+       sound {
+               compatible = "simple-audio-card";
+               simple-audio-card,format = "left_j";
+               simple-audio-card,cpu {
+                       sound-dai = <&sh_fsi2 0>;
+               };
+               simple-audio-card,codec {
+                       sound-dai = <&ak4648>;
+                       bitclock-master;
+                       frame-master;
+                       system-clock-frequency = <11289600>;
+               };
+       };
 };
 
 &i2c0 {
                        };
                };
        };
+
+       ak4648: ak4648@0x12 {
+               #sound-dai-cells = <0>;
+               compatible = "asahi-kasei,ak4648";
+               reg = <0x12>;
+       };
 };
 
 &i2c3 {
                renesas,groups = "sdhi2_data4", "sdhi2_ctrl";
                renesas,function = "sdhi2";
        };
+
+       fsia_pins: sounda {
+               renesas,groups = "fsia_mclk_in", "fsia_sclk_in",
+                                "fsia_data_in", "fsia_data_out";
+               renesas,function = "fsia";
+       };
 };
 
 &sdhi0 {
        broken-cd;
        status = "okay";
 };
+
+&sh_fsi2 {
+       pinctrl-0 = <&fsia_pins>;
+       pinctrl-names = "default";
+
+       status = "okay";
+};