SDIO supported Wifi Bring-up on Xavier NX

Hi,
I am facing issue in WiFi bring up with Jetson Xavier NX module.

For wifi module it is needed to set 1.8V at sdio pins. By using below dts file it is succesfully done but with this system does not boot completely.
I have defined dts for sdmmc3 like this,
sdhci@3440000 {
mmc-ocr-mask = <0x0>;
cd-inverted;
cd-gpios = <&tegra_main_gpio TEGRA194_MAIN_GPIO(Q, 2) 0>;
nvidia,cd-wakeup-capable;
nvidia,vmmc-always-on;
mmc-ocr-mask = <0>;
cd-inverted;
vmmc-supply = <&p3668_vdd_sdmmc1_sw>;
status = “okay”;
};
for this boot logs are…
log.txt (29.0 KB)

Here I am not getting reason behind it. did i miss anything in the dts

Thanks

Hi,
We don’t support WIFI module through SDIO by default. Would suggest use the module connecting to M.2 Key E socket.

Hello, I have to test SDIO interface which is with M.2 Key E socket. So Currently I was able to detect 1.8v on that port using below dts file configurations, but there is no sdio card detected. I am attaching the dmesg kernel logs here.
nx_log.txt (68.0 KB)

sdhci@3440000 {
#address-cells = <1>;
#size-cells = <0>;
nvidia,is-sdio;
nvidia,cd-wakeup-capable;
non-removable;
force-non-removable-rescan;
cd-inverted;
cd-gpios = <&tegra_main_gpio TEGRA194_MAIN_GPIO(Q, 2) 0>;
no-sd;
max-clk-limit = <25000000>;
mmc-ocr-mask = <0>;//select 1.8 volt
only-1-8-v;
cd-inverted;
vmmc-supply = <&p3668_vdd_sdmmc3_sw>;
nvidia,vmmc-always-on;
sd-uhs-sdr104;
sd-uhs-sdr50;
sd-uhs-sdr25;
sd-uhs-sdr12;
mmc-hs200-1_8v;
status = “okay”;
wifi-host;
enable-sdio-wakeup;
power-off-rail;
nvidia,clock-always-on;
mmc-ddr-1_8v;
uhs-mask = <0x0>;
tap-delay = <3>;
ignore-pm-notify;
pm-ignore-notify;
mwifiex: wifi@0 {
reg = <0>;
compatible = “marvell,sd8997”;
};
};

Please help us to resolve the SDIO card detection issue.

Thanks and regards

Hi,

What we tried to say is we only support PCIe and USB path over the M.2 key slot.

SDIO wifi is not validated over Jetson xavier series SoC.

You can refer to other users post first.

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