I want to use the I2S0 and I2S1 of the module. I am using jp4.6.2sudo /opt/nvidia/jetson-io/jetson-io.py and turn on aud_mclk i2s1.sudo amixer -c tegrasndt186ref cset name="I2S1 Mux" "ADMAIF1"aplay -D hw:1,0 a.wav But no voice.sudo amixer -c tegrasndt186ref cset name="I2S3 Mux" "ADMAIF3"aplay -D hw:1,2 a.wav Works well.
I see the pins descriptor on the excel.sudo dtc -I fs -O dts -o extracted_proc.dts /proc/device-tree and see the dts
hdr40-pin40 {
nvidia,lpdr = <0x0>;
nvidia,enable-input = <0x0>;
nvidia,tristate = <0x0>;
nvidia,pull = <0x0>;
nvidia,function = "i2s1";
nvidia,pins = "dap1_dout_pj1";
};
It’s I2S1 but the nvidia,pins = "dap1_dout_pj1". dap1_dout_pj1 is module I2S0
I don’t know the relationship of module i2s and soc i2s and dts name.
Suppose you can just check the device tree pin name to map to correct i2s bus.
But I don’t know how to match the module i2s and soc i2s and dts i2s.
Find the device tree pin name and map to below and minus 1 to get the i2s bus. i2s1 is HW naming and start from 1 and software naming from 0 so minus 1 get the software bus name.
Like below is the i2s@0 for this pin.
nvidia,function = “i2s1”
It’s wrong. My codec connect to moudle i2s1, and nvidia,function = “i2s1”. It works well. So I ask you module i2s@0 vs nvidia,function = “i2s?” and what’s the dts descriptor pin? So confuse~_~
Looks like i2s didn’t like others have aliases bus name.
aliases {
sdhci0 = "/sdhci@3400000";
sdhci1 = "/sdhci@3420000";
sdhci2 = "/sdhci@3440000";
sdhci3 = "/sdhci@3460000";
i2c0 = "/i2c@3160000";
i2c1 = "/i2c@c240000";
i2c2 = "/i2c@3180000";
i2c3 = "/i2c@3190000";
i2c4 = "/bpmp_i2c";
i2c5 = "/i2c@31b0000";
i2c6 = "/i2c@31c0000";
i2c7 = "/i2c@c250000";
i2c8 = "/i2c@31e0000";
spi0 = "/spi@3210000";
spi1 = "/spi@c260000";
spi2 = "/spi@3230000";
spi3 = "/spi@3240000";
spi4 = "/aon_spi@c260000";
spi6 = "/spi@3270000";
tegra-camera-rtcpu = "/rtcpu@b000000";
serial0 = "/serial@3100000";
serial1 = "/serial@3110000";
serial2 = "/serial@c280000";
serial3 = "/serial@3130000";
serial4 = "/serial@3140000";
serial5 = "/serial@3150000";
serial6 = "/serial@c290000";
rtc1 = "/rtc@c2a0000";
rtc0 = "/bpmp_i2c/spmic@3c";
};
```.
i2s@2901000 {
compatible = "nvidia,tegra186-i2s";
reg = <0x0 0x2901000 0x0 0x100>;
nvidia,ahub-i2s-id = <0x0>;
clocks = <0x10 0x4f 0x10 0xf6 0x10 0x269 0x10 0xf7 0x10 0x269>;
clock-names = "i2s1", "pll_a_out0", "ext_audio_sync", "audio_sync", "clk_sync_input";
pinctrl-names = "dap_active", "dap_inactive";
pinctrl-0 = <0x60>;
pinctrl-1;
fsync-width = <0x1f>;
status = "okay";
nvidia,is-pinctrl = <0x1>;
linux,phandle = <0xbe>;
phandle = <0xbe>;
};
i2s@2901100 {
compatible = "nvidia,tegra186-i2s";
reg = <0x0 0x2901100 0x0 0x100>;
nvidia,ahub-i2s-id = <0x1>;
clocks = <0x10 0x2a 0x10 0xf6 0x10 0x26a 0x10 0xf8 0x10 0x26a>;
clock-names = "i2s2", "pll_a_out0", "ext_audio_sync", "audio_sync", "clk_sync_input";
pinctrl-names = "dap_active", "dap_inactive";
pinctrl-0 = <0x61>;
pinctrl-1;
fsync-width = <0x0>;
status = "okay";
nvidia,is-pinctrl = <0x1>;
linux,phandle = <0xc0>;
phandle = <0xc0>;
};
i2s@2901200 {
compatible = "nvidia,tegra186-i2s";
reg = <0x0 0x2901200 0x0 0x100>;
nvidia,ahub-i2s-id = <0x2>;
clocks = <0x10 0x2b 0x10 0xf6 0x10 0x26b 0x10 0xf9 0x10 0x26b>;
clock-names = "i2s3", "pll_a_out0", "ext_audio_sync", "audio_sync", "clk_sync_input";
pinctrl-names = "dap_active", "dap_inactive";
pinctrl-0 = <0x62>;
pinctrl-1;
fsync-width = <0x1f>;
status = "okay";
nvidia,is-pinctrl = <0x1>;
linux,phandle = <0xc2>;
phandle = <0xc2>;
};
i2s@2901300 {
compatible = "nvidia,tegra186-i2s";
reg = <0x0 0x2901300 0x0 0x100>;
nvidia,ahub-i2s-id = <0x3>;
clocks = <0x10 0x54 0x10 0xf6 0x10 0x26c 0x10 0xfa 0x10 0x26c>;
clock-names = "i2s4", "pll_a_out0", "ext_audio_sync", "audio_sync", "clk_sync_input";
pinctrl-names = "dap_active", "dap_inactive";
pinctrl-0;
pinctrl-1;
fsync-width = <0x1f>;
status = "okay";
linux,phandle = <0xc4>;
phandle = <0xc4>;
};
aliases is the same of you.
i2s@2901000 {
compatible = "nvidia,tegra210-i2s";
reg = <0x0 0x2901000 0x0 0x100>;
nvidia,ahub-i2s-id = <0x0>;
clocks = <0x10 0x4f 0x10 0xf6 0x10 0x269 0x10 0xf7 0x10 0x269>;
clock-names = "i2s", "i2s_clk_parent", "ext_audio_sync", "audio_sync", "clk_sync_input";
assigned-clocks = <0x10 0x4f>;
assigned-clock-parents = <0x10 0xf6>;
assigned-clock-rates = <0x177000>;
pinctrl-names = "dap_active", "dap_inactive";
pinctrl-0;
pinctrl-1;
fsync-width = <0x1f>;
status = "okay";
linux,phandle = <0x88>;
phandle = <0x88>;
};
i2s@2901100 {
compatible = "nvidia,tegra210-i2s";
reg = <0x0 0x2901100 0x0 0x100>;
nvidia,ahub-i2s-id = <0x1>;
clocks = <0x10 0x2a 0x10 0xf6 0x10 0x26a 0x10 0xf8 0x10 0x26a>;
clock-names = "i2s", "i2s_clk_parent", "ext_audio_sync", "audio_sync", "clk_sync_input";
assigned-clocks = <0x10 0x2a>;
assigned-clock-parents = <0x10 0xf6>;
assigned-clock-rates = <0x177000>;
pinctrl-names = "dap_active", "dap_inactive";
pinctrl-0;
pinctrl-1;
fsync-width = <0x0>;
status = "okay";
linux,phandle = <0x8a>;
phandle = <0x8a>;
};
i2s@2901200 {
compatible = "nvidia,tegra210-i2s";
reg = <0x0 0x2901200 0x0 0x100>;
nvidia,ahub-i2s-id = <0x2>;
clocks = <0x10 0x2b 0x10 0xf6 0x10 0x26b 0x10 0xf9 0x10 0x26b>;
clock-names = "i2s", "i2s_clk_parent", "ext_audio_sync", "audio_sync", "clk_sync_input";
assigned-clocks = <0x10 0x2b>;
assigned-clock-parents = <0x10 0xf6>;
assigned-clock-rates = <0x177000>;
pinctrl-names = "dap_active", "dap_inactive";
pinctrl-0;
pinctrl-1;
fsync-width = <0x1f>;
status = "okay";
linux,phandle = <0x8c>;
phandle = <0x8c>;
};
i2s@2901300 {
compatible = "nvidia,tegra210-i2s";
reg = <0x0 0x2901300 0x0 0x100>;
nvidia,ahub-i2s-id = <0x3>;
clocks = <0x10 0x54 0x10 0xf6 0x10 0x26c 0x10 0xfa 0x10 0x26c>;
clock-names = "i2s", "i2s_clk_parent", "ext_audio_sync", "audio_sync", "clk_sync_input";
assigned-clocks = <0x10 0x54>;
assigned-clock-parents = <0x10 0xf6>;
assigned-clock-rates = <0x177000>;
pinctrl-names = "dap_active", "dap_inactive";
pinctrl-0;
pinctrl-1;
fsync-width = <0x1f>;
status = "okay";
linux,phandle = <0x8e>;
phandle = <0x8e>;
};
What deos it mean?
Have a check the TRM to know the address map.
system
August 24, 2022, 4:25am
11
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