[linux-firmware] Raspberry pi 4 wlan0 is missing

[galaxy0419]

When I upgrade linux-firmware from 20201218.646f159-1 to 20210208.b79d239-1 and reboot, the wifi device is missing. It seems a firmware issue. I have tried to reinstall the package. The result is the same. Here is the demsg log I reload the kernel module brcmfmac.

$this->bbcode_second_pass_code('', '
[ 1233.031297] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 1233.039701] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 1233.057760] brcmfmac: F1 signature read @0x18000000=0x15264345
[ 1233.061404] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 1233.071479] usbcore: registered new interface driver brcmfmac
[ 1234.176268] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
[ 1235.186507] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
')

[acorbi]

Hi all,

I'm usig a rpi4 and up to (and included) kernel 5.10.13-x I was able to use wifi without problems.

Since updating to kernel 5.10.14-1-ARCH the 'wlan0' interface doesn't even exist, I mean, an 'ip a' command does not list it, 'rfkill list' does not list it.

If I boot with a spare sdcard that has a previous 5.10.x kernel, wifi works as expected.

Any ideas about what can be happening?

Thanks!

[graysky]

MOD NOTE: Merged topics

Which kernel package are you both using? Anyone running linux-aarch64 or are you both running linux-raspberrypi4?

EDIT on 17-Feb-2021: I posted this announcement with some recovery options.

[acorbi]

Hi graysky,

Not on my rpi4 now, but I'm using the one that provides 'uname -r' = 5.10.14-1-ARCH.
I think it's the last one in the repos, and I'm sure I'm using the latest firmware package as I update the pi every day.

$ uname -a
Linux hal9000 5.10.14-1-ARCH #1 SMP Mon Feb 8 16:01:39 UTC 2021 armv7l GNU/Linux

[graysky]

I can confirm that wlan0 does not work under 20210208.b79d239-1 as well (linux-raspberrypi4/aarch64). Downgrading to 20201218.646f159-1 restores it. Upstream bug? Can one of you check their bug tracker and open a report if none?

[acorbi]

From where can we download previous versions of packages?

[graysky]

$this->bbcode_second_pass_quote('acorbi', 'F')rom where can we download previous versions of packages?

[galaxy0419]

Hi all,

I just downgraded both linux-raspberrypi4 and linux-firmware to the last version. The problem was gone. If I update either of the package, the issue presists.

@graysky Could you open an issue for linux-firmware, I don't know where to report this to upstream.

Edit: After a bit more testing, linux-raspberrypi4 is not the problem. It just had some complaints about the firmware. wlan0 is still there. Demsg:

$this->bbcode_second_pass_code('', '
[ 9.332207] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 9.342808] usbcore: registered new interface driver brcmfmac
[ 9.528226] .
[ 9.566712] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 9.591161] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Feb 27 2018 03:15:32 version 7.45.154 (r684107 CY) FWID 01-4fbe0b
')

[graysky]

You shouldn't need to downgrade the kernel package. I believe the issue was introduced in the linux-firmware package.

[Krest]

Exactly the same issue on the pi3b too.