Connect Tech "Photon" Base Board SD Card Reader

[chhg82]

Hi,

I got the dunfell branch (R32.7.2) running on the Connect Tech Base Board Photon with the MACHINE="jetson-xavier-nx-devkit-emmc" (without Connect Tech's BSP). USBC, HDMI, ethernet, fan control... works. Unfortunately the microSD reader (on the Photon base board) is not working, no activity when plugging/unplugging with dmesg -w.
My goal would be to boot from the microSD.
I have received BSP, sources and flash script from ConnectTech but I don't know how to integrate this into the OE world!
Can someone help me? Unfortunately, Connect Tech does not currently offer a Yocto Layer.

Thanks very much!

[dwalkes]

Did you see the process at OE4T/tegra-demo-distro#217 for another 3rd party board? This may be useful. I suspect you need to integrate the content from the resources.tgz at https://www.dropbox.com/s/v021e3qye8dcj6g/CTI-L4T-XAVIER-NX-32.7.2-V003.tgz?dl=0&file_subpath=%2FCTI-L4T into a new MACHINE type.

[chhg82]

Thank you, this is exactly the same principle as I want to achieve.
Still trying to understand the workflow how to integrate the BSP as source.
If I simply use ConnectTech's DTB file (replacing file name parameter in the generated doflash.sh) then the SD card is recognized at runtime (mmcblk1).
If I replace the PINMUX_CONFIG configuration with ConnectTech in flashvars, it has no effect???

[ichergui]

Hey @chhg82
You should use jetson-xavier-nx-devkit as machine to boot from SDCard.
I suggest that you follow the instructions from our wiki page
Please keep me updated.

[chhg82]

Hey @ichergui
It's a production module with 16GB on board EMMC. The SD slot is on the ConnectTech base board. Are you sure to use jetson-xavier-nx-devkit instead of jetson-xavier-nx-devkit-emmc?