Wifi firmware problem

I am getting the below error logs while booting. These logs are taken from Snapdragon 820 custom board with QCA6174.

[ 19.165958] ath10k_pci 0000:01:00.0: failed to submit wmi echo: -11
[ 19.165995] ath10k_pci 0000:01:00.0: failed to ping firmware: -11
[ 19.173916] ath10k_pci 0000:01:00.0: failed to reset rx filter: -11
[ 19.256330] ath10k_pci 0000:01:00.0: could not init core (-11)
[ 19.256467] ath10k_pci 0000:01:00.0: could not probe fw (-11)

Please suggest if anything is missing on software configuration.
Any problem with QCA6174 firmaware version? I am using latest rootfs (build 200).

Thanks