Ethernet and wifi on Orin Nano Devkit (8GB)

[Lander0606]

Hi all,

I made an image from my distribution based on the tegra-demo distribution but it seems like ethernet and wifi isn't working on the board, only a lo network interface is registered... As far as I can see, ethernet isn't even included in the device tree so that would explain it. I have a few questions to troubleshoot the problem any further:

What's the best way with these tegra images to check the final device tree? Is there a complete dtb file somewhere or is it best to check it in a running system?

How could I enable the ethernet/wifi interface? The lsmod command does not immediately show an ethernet or wifi driver:

root@jetson-orin-nano-devkit:/sys/firmware/devicetree/base# lsmod
Module                  Size  Used by
nvvrs_pseq_rtc         16384  0
mc_hwpm                16384  0
fusb301                24576  0
nvhwpm                139264  1 mc_hwpm
tegra234_oc_event      16384  0
thermal_trip_event     16384  0
pwm_tegra_tachometer    16384  0
tegra234_aon           57344  1
nvpmodel_clk_cap       16384  0
host1x_fence           24576  0
tegra_bpmp_thermal     16384  0
spi_tegra114           28672  0
tegra_cactmon_mc_all    16384  0
nvidia_vrs_pseq        16384  0
pwm_tegra              20480  1
nfsd                  282624  1
pwm_fan                20480  0
nvgpu                2793472  0
governor_pod_scaling    45056  0
mc_utils               16384  1 nvgpu
nvmap                 237568  1 nvgpu
nvsciipc               24576  1 nvmap
host1x                204800  2 host1x_fence,nvgpu
ina3221                24576  0
ipv6                  503808  28
nvme                   49152  0
nvme_core             106496  1 nvme
tegra_xudc             45056  0
pcie_tegra194          40960  0
phy_tegra194_p2u       16384  9

I used the jetson-orin-nano-devkit machine to build my image. But, I saw that there is a configuration specifically for the board with SKU 0003 (the 8GB Orin Nano devkit). Is that one more suitable to use or? It seems like that one doesn't include devkit-wifi.inc so the wifi interface would not work with that one or?

Image built: core-image-full-cmdline
Yocto release: scarthgap
Board: Jetson Orin Nano Devkit 8GB
Used layers: poky, meta-tegra and a layer with my own distro created with a script in the tegra-demo repo

[Lander0606]

It appears that the core-image-full-cmdline image doesn't include all MACHINE_EXTRA_RRECOMMENDS so the r8168/r8169 GigaBit Ethernet driver was not included in the image. Solution: use core-image-base or another image that uses packagegroup-base.

However, wifi still doens't seem to work (or no interface is created just yet) and the p3768-0000-p3767-0003 machine configuration seems to be different from the jetson-orin-nano-devkit in terms of included features?

[madisongh]

Do you have wifi in both DISTRO_FEATURES and MACHINE_FEATURES? That should be triggering the inclusion of the right packagegroup(s). With the demo-image-xxxx images I build directly out of our demo distro, both Ethernet and WiFi interfaces come up just fine on my Orin Nano dev kit. So you might want to do a side-by-side comparison to see what you might be missing.

The WiFi interface is another Realtek part, and the driver should be rtl8822ce. You should also see it if you do an lspci:

0001:01:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8822CE 802.11ac PCIe Wireless Network Adapter

As for the machine definitions...If you have a stock Orin Nano dev kit (with the SDcard slot on the back of the module, and the "Not for sale, for development use only" sticker on it), use jetson-orin-nano-devkit. The -0003 config is used when you install a production Orin Nano module (which is SKU 3 rather than SKU 5) in a dev kit carrier. Feature-wise, they're identical, except for the SDcard interface.

[Lander0606]

It seems like wifi wasn't added to the DISTRO_FEATURES... Doing so added the right rtl8822ce firmware to the build, and showed the network controller with lspci.

Thanks for the clarification around the machine definitions!