Some complementary info: The firmware files can be found here http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/ath10k/QCA6174 and/or http://github.com/kvalo/ath10k-firmware/blob/master/ath10k
See also reports via http://google.com/search?q=atheros+board-2.bin and recent Ubuntu linux-firmware 1.158 package that has $ dpkg -L linux-firmware |grep -i ath10k/QCA6.*bin$ /lib/firmware/ath10k/QCA6174/hw2.1/firmware-5.bin /lib/firmware/ath10k/QCA6174/hw2.1/board-2.bin /lib/firmware/ath10k/QCA6174/hw2.1/board.bin /lib/firmware/ath10k/QCA6174/hw3.0/firmware-4.bin /lib/firmware/ath10k/QCA6174/hw3.0/board-2.bin /lib/firmware/ath10k/QCA6174/hw3.0/board.bin Thanks, Andras
