TX2i's Tegra interface (SDMMC3) cannot recognize WiFi module(CBM251)

My customer is debugging TX2i’s external WiFi module (CBM251), the driver of WiFi module has been transplanted,。
But TX2i’s Tegra interface (SDMMC3) cannot recognize WiFi module…What could be the cause?Could you please help to solve this problem?
Any advice will be helpful. Thank you


It is better to share your kernel log (dmesg) when debugging such device bring up isuse.
We don’t have your card so not possible to understand your problem by just some descriptions here.

I’m very sorry, but I was negligent. I didn’t describe the problem clearly.

At present, the circuit design of the wifi module is confirmed to be correct. In terms of software, we have modified the device tree, see theTX2i wifi file for specific informationTX2i WIFI.docx (241.3 KB)

Please help analyze dmesg.log, thank youdmesg.log (61.0 KB)

There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one.


Is there any specific driver for this wifi module?
It looks like current it is trying to use the bcmdhd driver.