| // 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>; |
| }; |
