QCA9984 board file help

I am bringing up Openwrt on a proprietary router board based on the IPQ8065 / QCA9984. The OEM has supplied firmware based on a very old version of the Qualcomm SDK. I am trying to port the latest version of OpenWrt to it. I have everything working except the wireless interfaces. I have all the original board files supplied by the OEM however they are for the proprietary driver/firmware and I am not entirely sure what to do with them. They seem to be in a different format than the board-2.bin file. Does anyone have any experience with this?