Ubuntu
linux-meta-raspi package

limited wireles channels on a RPi 3B

Bug #1874354 reported by Brian Murray
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-meta-raspi (Ubuntu)
Fix Released
Undecided
Unassigned

Bug Description

I saw the following in my dmesg:

[ 13.113608] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[ 13.113640] cfg80211: failed to load regulatory.db
[ 13.259143] brcmfmac: F1 signature read @0x18000000=0x1541a9a6
[ 13.268452] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[ 13.279732] usbcore: registered new interface driver brcmfmac
[ 13.520854] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[ 13.532110] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[ 13.552859] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43430/1 wl0: Oct 23 2017 03:55:53 version 7.45.98.38 (r674442 CY) FWID 01-e58d219f

I don't know if the channels are really limited.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-raspi 5.4.0.1008.8
ProcVersionSignature: User Name 5.4.0-1008.8-raspi 5.4.29
Uname: Linux 5.4.0-1008-raspi aarch64
ApportVersion: 2.20.11-0ubuntu27
Architecture: arm64
CasperMD5CheckResult: skip
Date: Thu Apr 23 00:29:47 2020
SourcePackage: linux-meta-raspi
UpgradeStatus: No upgrade log present (probably fresh install)

Revision history for this message
Brian Murray (brian-murray) wrote :
tags: added: rls-ff-incoming
Revision history for this message
Dave Jones (waveform) wrote :

The currently provided firmware for the BCM43430 wireless chipset (the one used by the Pi 3B) has no .clm_blob included. [1] is our source of this firmware and according to [2], Broadcom provide these files directly the Pi Foundation.

It's notable the same message appears in the dmesg log on Raspbian, so I'd suggest this is effectively an upstream issue and that the best place to file it would probably be in the RPi-Distro/firmware-nonfree repo.

[1] https://github.com/RPi-Distro/firmware-nonfree/tree/master/brcm
[2] https://github.com/RPi-Distro/firmware-nonfree/issues/1

Matthieu Clemenceau (mclemenceau)
tags: added: fr-2582
Revision history for this message
Dave Jones (waveform) wrote :

Ah, I remember this old one. We discussed this with upstream and found the issue was that for that specific firmware, the clm-blob was included in the firmware blob itself, but the code that loaded firmware blobs still warned that it couldn't find the external file. That code was eventually cleaned up so it no longer complains, so this is essentially fix released.

Changed in linux-meta-raspi (Ubuntu):
status: New → Fix Released
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