Wifi firmware for Zero2 is missing

[mschorer]

• The issue is present in the latest release.
• I have searched the issues of this repository and believe that this is not a duplicate.

What happened?

Wrote chirpstack-gateway-os-4.7.0-full-bcm27xx-bcm2709-rpi-2-squashfs-factory.img.gz to a SD card
Boot looks good - except kernel can't load the wifi firmware -> no networking

What did you expect?

Firmware should load - networking be active.

Steps to reproduce this issue

Steps:

1. write chirpstack-gateway-os-4.7.0-full-bcm27xx-bcm2709-rpi-2-squashfs-factory.img.gz to a micro sd
2. boot raspberry zero2 W
3. the failure(s) to find find the firmware with either of the 2 tried methods are at the end of the console output

Could you share your log output?

currently no log - as no network.

Your Environment

Component	Version
ChirpStack Gateway OS	v4.7.0

[brocaar]

Could you confirm if the same issue persists when flashing a vanilla OpenWrt image for the same target?

[mschorer]

Openwrt 24.10.1 doesn't work either (openwrt-24.10.1-bcm27xx-bcm2709-rpi-2-ext4-factory.img.gz).
The problem seems to be, that the kernel tries to load the firmware for brcfmac43430b0-sdio.bin which doesn't exist.

I haven't managed to get clear on the variants for the zero2-w yet.

[mschorer]

there seem to be 43430a0/a1/b0/c0 versions ...

[brocaar]

Openwrt 24.10.1 doesn't work either (openwrt-24.10.1-bcm27xx-bcm2709-rpi-2-ext4-factory.img.gz).

In that case, it would be better to report the issue here as this issue is not related to the ChirpStack Gateway OS, but affects all OpenWrt users:
https://github.com/openwrt/openwrt

[brocaar]

I believe the issue is related to licensing of this firmware:

See the notes here:
https://openwrt.org/toh/hwdata/raspberry_pi_foundation/raspberry_pi_foundation_raspberry_pi_zero_2w

WLAN Comments:
Due to licensing uncertainty add firmware to image using instructions in git-commit

This is the commit being referred to:
https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=e9f9cd14cc71826957877999fd063dd080de4751