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