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

[Stefan Wahren]

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

I already tried the additional patches from Gerd Hofmann's repo [2], but this didn't improve anything.

Any ideas what could be the problem?

Thanks
Stefan

[1] - http://lists.infradead.org/pipermail/linux-rpi-kernel/2017-June/006598.html
[2] - https://www.kraxel.org/cgit/linux/log/?h=bcm2837