Digi provided Digi ESP for Embedded Linux which will select the cross compiler gcc tool depending on the platform.
ESP for 5.9.2 has support for ConnectCore Wi-i.mx53, ConnectCore Wi-i.mx51 and ConnectCard Wi-i.mx28.
i.mx53 and i.mx51 are Cortex A8 architectures , and so it will use arm-cortex_a8-linux-gnueabi