diff options
Diffstat (limited to 'arch/arm64/boot/dts/freescale/imx8mm-verdin-dev.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mm-verdin-dev.dtsi | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dev.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dev.dtsi new file mode 100644 index 000000000..b2bcd2282 --- /dev/null +++ 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>; +}; |