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-rw-r--r--arch/arm64/boot/dts/freescale/imx8mm-verdin-dev.dtsi68
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diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dev.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dev.dtsi
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index 000000000..b2bcd2282
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+++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dev.dtsi
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2022 Toradex
+ */
+
+#include "imx8mm-verdin-dahlia.dtsi"
+
+/ {
+ sound_card: sound-card {
+ compatible = "simple-audio-card";
+ simple-audio-card,bitclock-master = <&dailink_master>;
+ simple-audio-card,format = "i2s";
+ simple-audio-card,frame-master = <&dailink_master>;
+ simple-audio-card,mclk-fs = <256>;
+ simple-audio-card,name = "imx8mm-nau8822";
+ simple-audio-card,routing =
+ "Headphones", "LHP",
+ "Headphones", "RHP",
+ "Speaker", "LSPK",
+ "Speaker", "RSPK",
+ "Line Out", "AUXOUT1",
+ "Line Out", "AUXOUT2",
+ "LAUX", "Line In",
+ "RAUX", "Line In",
+ "LMICP", "Mic In",
+ "RMICP", "Mic In";
+ simple-audio-card,widgets =
+ "Headphones", "Headphones",
+ "Line Out", "Line Out",
+ "Speaker", "Speaker",
+ "Microphone", "Mic In",
+ "Line", "Line In";
+
+ dailink_master: simple-audio-card,codec {
+ clocks = <&clk IMX8MM_CLK_SAI2_ROOT>;
+ sound-dai = <&nau8822_1a>;
+ };
+
+ simple-audio-card,cpu {
+ sound-dai = <&sai2>;
+ };
+ };
+};
+
+&gpio_expander_21 {
+ status = "okay";
+};
+
+/* Verdin I2C_1 */
+&i2c4 {
+ /* Audio Codec */
+ nau8822_1a: audio-codec@1a {
+ compatible = "nuvoton,nau8822";
+ reg = <0x1a>;
+ };
+};
+
+/* Verdin UART_1, connector X50 through RS485 transceiver */
+&uart2 {
+ linux,rs485-enabled-at-boot-time;
+ rs485-rts-active-low;
+ rs485-rx-during-tx;
+};
+
+/* Limit frequency on dev board due to long traces and bad signal integrity */
+&usdhc2 {
+ max-frequency = <100000000>;
+};