Internal wifi is not working. Some issue with the firmware.
dmesg:
[ 6.739511] cfg80211: Calling CRDA to update world regulatory domain
[ 6.792722] brcmfmac: brcmf_sdio_drivestrengthinit: No SDIO Drive strength init done for chip 43430 rev 1 pmurev 24
[ 6.793430] usbcore: registered new interface driver brcmfmac
[ 6.793549] brcmfmac_sdio mmc1:0001:1: Direct firmware load for brcm/brcmfmac43430-sdio.bin failed with error -2
[ 7.077639] uart-pl011 3f201000.uart: no DMA platform data
[ 7.079385] i2c /dev entries driver
[ 7.132078] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 7.799144] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
[ 8.643876] random: nonblocking pool is initialized
[ 8.695523] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
[ 8.809195] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50
[ 9.889147] cfg80211: Calling CRDA to update world regulatory domain
[ 13.039129] cfg80211: Calling CRDA to update world regulatory domain
[ 16.189127] cfg80211: Calling CRDA to update world regulatory domain
[ 19.339136] cfg80211: Calling CRDA to update world regulatory domain
[ 22.489146] cfg80211: Calling CRDA to update world regulatory domain
[ 25.639126] cfg80211: Calling CRDA to update world regulatory domain
[ 28.789129] cfg80211: Calling CRDA to update world regulatory domain
[ 31.939135] cfg80211: Calling CRDA to update world regulatory domain
[ 35.089130] cfg80211: Calling CRDA to update world regulatory domain
[ 38.239125] cfg80211: Calling CRDA to update world regulatory domain
[ 41.389126] cfg80211: Exceeded CRDA call max attempts. Not calling CRDA
lsmod:
tc@box:~$ lsmod
Module Size Used by Not tainted
i2c_dev 6020 0
brcmfmac 178877 0
brcmutil 5731 1 brcmfmac
cfg80211 421646 1 brcmfmac
rfkill 16625 1 cfg80211
evdev 10230 0
i2c_bcm2708 5002 0
spi_bcm2835 7252 0
bcm2835_gpiomem 3023 0
bcm2835_rng 1816 0
uio_pdrv_genirq 2966 0
uio 8340 1 uio_pdrv_genirq