dmesg | grep brcm
[    1.187459] brcmfmac: brcmf_of_probe: interrupt could not be mapped
[    1.194419] brcmfmac: F1 signature read @0x18000000=0x1530a9a6
[    1.197807] brcmfmac: brcmf_sdio_drivestrengthinit: No SDIO Drive strength init done for chip 43430 rev 0 pmurev 24
[    2.310138] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
[    3.319433] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
[    4.349022] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50