wifi not working on some models of RPi Zero 2 -- Pi02GPi.arm build about lakka-libreelec

[ShigeakiAsai]

Zero2w wifi chip is used one of the two.(BCM43430/1 or BCM43430/2)

I think this problem is concern with following 2 reason.

• Raspberry Pi Linux update.
• Lakka "brcmfmac_sdio-firmware-rpi" package,

- About Raspberry Pi Linux update.
Raspberry Pi Linux updated the Zero2w wifi driver.
"brcmfmac: use separate firmware for 43430 revision 2" Commits on Aug 22, 2021
(raspberrypi/linux@f8d6523)
It seemed to change Zero2w BCM43430/2 firmrare file.
(from brcmfmac43436-sdio to brcmfmac43430b0-sdio)

- About Lakka "brcmfmac_sdio-firmware-rpi" package,
"brcmfmac_sdio-firmware-rpi" package includes brcmfmac43430-sdio and brcmfmac43436-sdio firmrares.
But, brcmfmac43430b0-sdio is not included.
It needs to update.

yasai@X670E-AORUS-MASTER:~/brcmfmac_sdio-firmware-rpi-a25c7c3d04db0363409dfd17f265bab66f0eae5a/firmware/brcm$ ls -l brcmfmac4343*
lrwxrwxrwx 1 yasai yasai 31 Nov 20 2022 brcmfmac43430-sdio.bin -> ../cypress/cyfmac43430-sdio.bin
lrwxrwxrwx 1 yasai yasai 36 Nov 20 2022 brcmfmac43430-sdio.clm_blob -> ../cypress/cyfmac43430-sdio.clm_blob
lrwxrwxrwx 1 yasai yasai 31 Nov 20 2022 brcmfmac43430-sdio.raspberrypi,3-model-b.bin -> ../cypress/cyfmac43430-sdio.bin
lrwxrwxrwx 1 yasai yasai 36 Nov 20 2022 brcmfmac43430-sdio.raspberrypi,3-model-b.clm_blob -> ../cypress/cyfmac43430-sdio.clm_blob
lrwxrwxrwx 1 yasai yasai 22 Nov 20 2022 brcmfmac43430-sdio.raspberrypi,3-model-b.txt -> brcmfmac43430-sdio.txt
lrwxrwxrwx 1 yasai yasai 31 Nov 20 2022 brcmfmac43430-sdio.raspberrypi,model-zero-w.bin -> ../cypress/cyfmac43430-sdio.bin
lrwxrwxrwx 1 yasai yasai 36 Nov 20 2022 brcmfmac43430-sdio.raspberrypi,model-zero-w.clm_blob -> ../cypress/cyfmac43430-sdio.clm_blob
lrwxrwxrwx 1 yasai yasai 22 Nov 20 2022 brcmfmac43430-sdio.raspberrypi,model-zero-w.txt -> brcmfmac43430-sdio.txt
-rw-r--r-- 1 yasai yasai 1121 Nov 20 2022 brcmfmac43430-sdio.txt
-rw-r--r-- 1 yasai yasai 416101 Nov 20 2022 brcmfmac43436-sdio.bin
-rw-r--r-- 1 yasai yasai 11209 Nov 20 2022 brcmfmac43436-sdio.clm_blob
lrwxrwxrwx 1 yasai yasai 22 Nov 20 2022 brcmfmac43436-sdio.raspberrypi,model-zero-2-w.bin -> brcmfmac43436-sdio.bin
lrwxrwxrwx 1 yasai yasai 27 Nov 20 2022 brcmfmac43436-sdio.raspberrypi,model-zero-2-w.clm_blob -> brcmfmac43436-sdio.clm_blob
lrwxrwxrwx 1 yasai yasai 22 Nov 20 2022 brcmfmac43436-sdio.raspberrypi,model-zero-2-w.txt -> brcmfmac43436-sdio.txt
-rw-r--r-- 1 yasai yasai 1613 Nov 20 2022 brcmfmac43436-sdio.txt
-rw-r--r-- 1 yasai yasai 436733 Nov 20 2022 brcmfmac43436s-sdio.bin
lrwxrwxrwx 1 yasai yasai 23 Nov 20 2022 brcmfmac43436s-sdio.raspberrypi,model-zero-2-w.bin -> brcmfmac43436s-sdio.bin
lrwxrwxrwx 1 yasai yasai 23 Nov 20 2022 brcmfmac43436s-sdio.raspberrypi,model-zero-2-w.txt -> brcmfmac43436s-sdio.txt
-rw-r--r-- 1 yasai yasai 1092 Nov 20 2022 brcmfmac43436s-sdio.txt

Thanks
ASAI, Shigeaki

[ShigeakiAsai]

Following may work around before "brcmfmac_sdio-firmware-rpi" package update.

packages/linux-firmware/brcmfmac_sdio-firmware-rpi/package.mk

makeinstall_target() {
if [ "${DEVICE}" = "Pi02GPi" ]; then
ln -sv brcmfmac43436-sdio.bin firmware/brcm/brcmfmac43430b0-sdio.raspberrypi,model-zero-2-w.bin
ln -sv brcmfmac43436-sdio.clm_blob firmware/brcm/brcmfmac43430b0-sdio.raspberrypi,model-zero-2-w.clm_blob
ln -sv brcmfmac43436-sdio.txt firmware/brcm/brcmfmac43430b0-sdio.raspberrypi,model-zero-2-w.txt
fi
DESTDIR=${INSTALL}/$(get_kernel_overlay_dir) ./install
}

Create symbolic link.

Thanks
ASAI, Shigeaki

[ShigeakiAsai]

@Ntemis

Please update "brcmfmac_sdio-firmware-rpi" package.
It was added after "Commits on Nov 19, 2023"(bfad24fe1260fa5217327cbd61477aa396ccf9e2) or later.
"Commits on Nov 19, 2023" is bfad24fe1260fa5217327cbd61477aa396ccf9e2 (Added version)
"Commits on Nov 22, 2023" is 26ff205b45dc109b498a70aaf182804ad9dbfea5 (Latest version)
https://github.com/LibreELEC/brcmfmac_sdio-firmware-rpi/commits/master/

RPi Zero 2W wifi (BCM43430/2) will work by this update.

Thanks
ASAI, Shigeaki

[ShigeakiAsai]

@jdalmanza
PR is merged.
Please confirm to fix on nightly build 2024-01-14_5.x/ or later.

Thanks
ASAI, Shigeaki

[jdalmanza]

confirmed wifi successfully loaded on the 14-JAN build

log-2024-01-15-20.32.48.zip

... output of dmesg

Lakka release: Pi02GPi.arm-devel-20240114170117-f787194

...
[ 11.023620] brcmfmac: F1 signature read @0x18000000=0x1542a9a6
[ 11.030841] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430b0-sdio for chip BCM43430/2
[ 11.031323] usbcore: registered new interface driver brcmfmac