You could use u-boot, Linux Kernel and Toolchain from Linux SDK 2.0 release.
Please download and install "Source: QorIQ Linux SDK v2.0" ISO from https://www.nxp.com/design/software/embedded-software/linux-software-and-development-tools/linux-sdk...
Go to the folder <installation_path>/QorIQ-SDK-V2.0-20160527-yocto, create the build project and fetch u-boot source.
$ source ./fsl-setup-env -m t2080rdb
Get u-boot source code:
$ bitbake u-boot -c cleansstate
$ bitbake u-boot -c patch
Get u-boot source folder build_t2080rdb/tmp/work/t2080rdb-fsl-linux/u-boot-qoriq/2016.09+fslgit-r0/git/.
$ bitbake virtual/kernel -c cleansstate
$ bitbake virtual/kernel -c patch
Get Linux Kernel source folder build_t2080rdb/tmp/work/t2080rdb-fsl-linux/linux-qoriq/4.1-r0/git
Please download "Image: QorIQ Linux SDK v2.0 PPCE6500 IMAGE" from the following link, please install Toolchain provided in this ISO.
https://www.nxp.com/design/software/embedded-software/linux-software-and-development-tools/linux-sdk...
