RT5640 no sound on Jetson Orin NX 16GB

Autonomous Machines Jetson & Embedded Systems Jetson Orin NX
,
1

Hello, I have a question regarding RT5640 control.
We are using a carrier board, and performed the following actions to use RT5640.
This is my first time using Jetson and I don’t know much about it. Sorry, but I would appreciate it if you could leave a detailed answer.

  1. Flash CMD
    sudo ./tools/kernel_flash/l4t_initrd_flash.sh --external-device nvme0n1p1 -c tools/kernel_flash/flash_l4t_external.xml -p “-c bootloader/t186ref/cfg/flash_t234_qspi.xml” --showlogs --network usb0 jetson-orin-nano-devkit internal

  2. Pinmux
    We connected the RT5640 to the I2S0 slot and changed the settings to I2S2 for the corresponding GPIO.
    bootloader/t186ref/BCT/tegra234-mb1-bct-pinmux-p3767-dp-a03.dtsi

image
image659×1088 21.5 KB

  1. driver code
    tegra234-p3767-common-audio.dtsi
    tegra234-p3767-common-audio.dtsi.txt (8.7 KB)

  2. codec CMD

amixer -c 1 cset name=“I2S2 Mux” “ADMAIF1”
amixer -c 1 cset name=“ADMAIF1 Mux” I2S2
amixer -c 1 cset name=“CVB-RT HPO MIX HPVOL Switch” “on”
amixer -c 1 cset name=“CVB-RT HPO MIX DAC1 Switch” “off”
amixer -c 1 cset name=“CVB-RT HPO MIX DAC2 Switch” “off”
amixer -c 1 cset name=“CVB-RT OUT MIXL DAC L1 Switch” “on”
amixer -c 1 cset name=“CVB-RT OUT MIXL BST1 Switch” “off”
amixer -c 1 cset name=“CVB-RT OUT MIXL DAC L2 Switch” “off”
amixer -c 1 cset name=“CVB-RT OUT MIXL DAC R2 Switch” “off”
amixer -c 1 cset name=“CVB-RT OUT MIXL INL Switch” “off”
amixer -c 1 cset name=“CVB-RT OUT MIXL REC MIXL Switch” “off”
amixer -c 1 cset name=“CVB-RT OUT MIXL SPK MIXL Switch” “off”
amixer -c 1 cset name=“CVB-RT HP Channel Switch” “on”
amixer -c 1 cset name=“CVB-RT HP L Playback Switch” “on”
amixer -c 1 cset name=“CVB-RT HP R Playback Switch” “on”
amixer -c 1 cset name=“CVB-RT HP Playback Volume” 20

amixer -c APE cset name=“I2S2 codec master mode” “None”

aplay -D hw:APE,0 tone.wav

  1. current status

  • When you enter the aplay command, it ends immediately, even though it is an 11-second audio file.

  • We confirmed that data and clock are generated on the I2C line when the amixer command is input.

  • As a result of measuring with an oscilloscope, there is no change in all four lines of I2S and mclk line.

  • cat /proc/asound/cards
    image

  • sudo i2cdetect -y -r 3160000.i2c
    image

  • sudo cat /sys/kernel/debug/pinctrl/2430000.pinmux/pinconf-groups > pinmux.txt
    pinmux.txt (39.3 KB)

  • sudo cat /proc/asound/card1/pcm0c/sub0/hw_params

  • sudo cat /proc/asound/card1/pcm0p/sub0/hw_params
    image

  • sudo cat /sys/kernel/debug/asoc/components > components.txt
    components.txt (879 Bytes)

  • zcat /proc/config.gz | grep rt5640
    image

  • amixer -c APE contents > settings.txt
    settings.txt (801.7 KB)

  • sudo dmesg > kernel_log.txt
    kernel_log.txt (69.4 KB)

  • sudo dtc -I fs -O dts /proc/device-tree >/tmp/dt.log
    dt.log.txt (429.7 KB)

  • sudo cat /sys/kernel/debug/regmap/2901000.i2s/registers > reg_dump.txt
    reg_dump.txt (585 Bytes)

If you need additional information, please let me know at any time. thank you!!

5

Sorry for the late response.

Is this still an issue to support? Any result can be shared?

6

Hi,

Sorry for late response.

  • Below RT5640 codec mixer settings seems incomplete.

Could you please try with the settings mentioned here,

Also, no need to make below mixer control setting,
amixer -c APE cset name=“I2S2 codec master mode” “None”

  • Also, please remove below node entry
hdr40_snd_link_i2s: &i2s2_to_codec{
	//add
	link-name = "rt5640-playback";
	ignore_suspend;
	bitclock-master;
	frame-master;	

	format = "i2s";
	codec-dai-name = "rt5640-aif1";
	//bit-format = "s16_le";
	//srate = <48000>;
	//num-channel = <2>;
	ignore_suspend;

	codec{
		sound-dai = <&rt5640 0>;
		prefix = "CVB-RT";
	};
	//add
};
  • Please confirm Codec is slave or master here?

Set Tegra I2S as Master and please share the observation from Tegra I2S lines.

7

Thank you for answer.

Since I am currently on an external business trip, I will reply within 10 days. Please wait a moment. Thank you.