brcmfmac: BCM43431 won't get probed on Raspberry Pi Zero W

[Arend van Spriel]

On 7/26/2017 8:19 AM, Stefan Wahren wrote:
> Hi,
>
>> Stefan Wahren <stefan.wahren at i2se.com> hat am 17. Juli 2017 um 22:31 geschrieben:
>>
>>
>> Hi,
>>
>>> Franky Lin <franky.lin at broadcom.com> hat am 17. Juli 2017 um 21:50 geschrieben:
>>>
>>>
>>> On Mon, Jul 17, 2017 at 6:10 AM, Stefan Wahren <stefan.wahren at i2se.com> wrote:
>>>> Hi,
>>>>
>>>>> Stefan Wahren <stefan.wahren at i2se.com> hat am 28. Juni 2017 um 21:33 geschrieben:
>>>>>
>>>>>
>>>>> Hi,
>>>>>
>>>>> i'm currently working on Raspberry Pi Zero W for Mainline. Here is my first patch series [1].
>>>>>
>>>>> Unfortunately i didn't get brcmfmac (connected via SDIO) probed with this patch series against 4.12.0-rc5-next-20170616+
>>>>>
>>>>> [    8.389167] brcmfmac: F1 signature read @0x18000000=0x1541a9a6
>>>>> [    8.735111] brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: May 27 2016 00:13:38 version 7.45.41.26 (r640327) FWID 01-df77e4a7
>>>>> [    8.786016] brcmfmac: brcmf_sdio_hostmail: Unknown mailbox data content: 0x40012
>>>>> [   11.288798] brcmfmac: brcmf_sdio_bus_rxctl: resumed on timeout
>>>>> [   11.292822] brcmfmac: brcmf_sdio_checkdied: firmware trap in dongle
>>>>> [   13.848777] brcmfmac: brcmf_sdio_bus_rxctl: resumed on timeout
>>>>> [   13.852974] brcmfmac: brcmf_sdio_checkdied: firmware trap in dongle
>>>>> [   16.408762] brcmfmac: brcmf_sdio_bus_rxctl: resumed on timeout
>>>>> [   16.413004] brcmfmac: brcmf_sdio_checkdied: firmware trap in dongle
>>>>> [   18.968769] brcmfmac: brcmf_sdio_bus_rxctl: resumed on timeout
>>>>> [   18.972965] brcmfmac: brcmf_sdio_checkdied: firmware trap in dongle
>>>>> [   21.528743] brcmfmac: brcmf_sdio_bus_rxctl: resumed on timeout
>>>>> [   21.532924] brcmfmac: brcmf_sdio_checkdied: firmware trap in dongle
>>>>> [   24.088745] brcmfmac: brcmf_sdio_bus_rxctl: resumed on timeout
>>>>> [   24.092948] brcmfmac: brcmf_sdio_checkdied: firmware trap in dongle
>>>>> [   26.648764] brcmfmac: brcmf_proto_bcdc_query_dcmd: brcmf_proto_bcdc_msg failed w/status -110
>>>>> [   26.648789] brcmfmac: brcmf_cfg80211_attach: Failed to get D11 version (-110)
>>>>> [   26.648831] brcmfmac: brcmf_bus_started: failed: -12
>>>>> [   26.648842] brcmfmac: brcmf_sdio_firmware_callback: dongle is not responding
>>>>>
>>> ...
>>> Can you please try to comment out the following lines in
>>> brcmf_feat_attach? That's the only suspicious line that interact with
>>> firmware in the patch.
>>>
>>> + brcmf_feat_iovar_data_set(ifp, BRCMF_FEAT_GSCAN, "pfn_gscan_cfg",
>>> +                                            &gscan_cfg, sizeof(gscan_cfg));
>>
>> after commenting out this line, the issue doesn't appear.
>>
>
> what are the plans to fix this regression?

I am a bit in doubt about this one. We can avoid the firmware config 
above for bcm4343x devices as a short term fix. However, I would like to 
root cause the issue. Received a Pi Zero over here so gearing it up.

Regards,
Arend