Which is Yocto meta layer branch(morty?) for Qt5.9 cross compiler toolchain?

[Mahesh Kumar Kodanda]

Hello,

I like to cross compile QT5.9 for Sabreauto AI board with Integrity RTOS, i'm looking for toolchain.

After going through the documentation Qt 5.9 for Device Creation

I got to know the possibility of getting toolchain using yocto project meta layer from

Building Your Own Embedded Linux Image | Qt 5.9 for Device Creation

it is mentioned that yocto layer meta-b2qt can be used, is it same as meta-boot2qt?

Can I get compatible cross compiler toolchain from morty branch to build qt5.9?

Please help.