@@ -64,6 +64,22 @@
phy-mode = "rgmii-id";
};
+ i2c@11000 {
+ pinctrl-0 = <&i2c0_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+ audio_codec: audio-codec@4a {
+ compatible = "cirrus,cs42l51";
+ reg = <0x4a>;
+ };
+ };
+
+ audio-controller@30000 {
+ pinctrl-0 = <&i2s_pins2>;
+ pinctrl-names = "default";
+ status = "okay";
+ };
+
mvsdio@d4000 {
pinctrl-0 = <&sdio_pins1>;
pinctrl-names = "default";
@@ -80,6 +96,30 @@
broken-cd;
};
+ pinctrl {
+ /*
+ * These pins might be muxed as I2S by
+ * the bootloader, but it conflicts
+ * with the real I2S pins that are
+ * muxed using i2s_pins. We must mux
+ * those pins to a function other than
+ * I2S.
+ */
+ pinctrl-0 = <&hog_pins1 &hog_pins2>;
+ pinctrl-names = "default";
+
+ hog_pins1: hog-pins1 {
+ marvell,pins = "mpp6", "mpp8", "mpp10",
+ "mpp12", "mpp13";
+ marvell,function = "gpio";
+ };
+
+ hog_pins2: hog-pins2 {
+ marvell,pins = "mpp5", "mpp7", "mpp9";
+ marvell,function = "gpo";
+ };
+ };
+
usb@50000 {
status = "okay";
};
@@ -112,10 +152,18 @@
/* Port 0, Lane 0 */
status = "okay";
};
+
pcie@2,0 {
/* Port 1, Lane 0 */
status = "okay";
};
};
};
+
+ sound {
+ compatible = "marvell,a370db-audio";
+ marvell,audio-controller = <&audio_controller>;
+ marvell,audio-codec = <&audio_codec>;
+ status = "okay";
+ };
};
This commit adds the necessary Device Tree informations to enable audio support on the Armada 370 DB platform. In details it: * Instantiates the CS42L51 audio codec on the I2C0 bus, and configures this bus with the appropriate pin-muxing configuration. * Enables the I2S audio controller, and configures it with the appropriate pin-muxing configuration. * Through hog pins, ensures that the other pins possibly used for I2S are muxed with another function than I2S. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> --- arch/arm/boot/dts/armada-370-db.dts | 48 +++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+)