Bug#911443: raspi3-firmware | Add board-specific firmware files for RPi 3B+ WiFi (!1)

[Matthias Luescher <lueschem@gmail.com>]

Hi Gunnar

I must say, I have not been able to find WiFi (not even a "firmware required" message). Could you help me find it, so it makes its way into raspi3-image-spec? Thanks - I'm closing this MR.

I have also struggled with WiFi. Could the "missing WiFi" issue be related to https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911443?

The WiFi (wlan0) reappears if I combine the 4.18 kernel with the device tree binary of the 4.17 kernel.

The device tree change causing the absence of wlan0 might be this one:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/arch/arm/boot/dts/bcm2837-rpi-3-b.dts?h=v4.20-rc4&id=b1b8f45b3130dbd8704e5ea0d82b49b1d929498e

@Stefan and @Eric: As you are the experts here: Can you give us a clue why the wlan0 interface disappears if we take the latest device tree binary from 4.18 vanilla kernel?

Best regards

Matthias