NXP Recommends using Wi-Fi source code drivers available from GitHub based on the following decisions:
Linux software drivers on NXP host processor (i.MX6, 7, 8 or 9)
Pre-built binary demo files for each quarterly BSP release are available here:
RTOS software drivers on NXP host processor (MCX, MCU, or i.MX RT)
Non-nxp host processor with Linux or Android
Non-nxp host MCU RTOS
In addition to GitHub, RTOS drivers are available on NXP web site and as an Open CMSIS Pack from ARM:
NXP Website
Available in SDK Builder on nxp.com
Distributed in .zip folder alongside entire SDK
www.keil.arm.com/packs/wifi-nxp/versions/
ARM Open-CMSIS Pack
Distributed as ARM CMSIS pack
Linux Drivers are available as a .ZIP folder from each of the Wi-Fi specific product pages.