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// 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>;
};
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