The toolchain is available as part of the Freescale Linux BSP. This BSP only supports our boards but you may find it useful for extracting the toolchain. The BSPs are available on the Software & Tools section of each i.MX processor.
Go to freescale.com/imx6
Then chose the i.MX6 processor you’ll be using, for example i.MX6Q.
Once on the i.MX6Q page go to to the Software & Tools tab and look under the Run-time Software -> Operating System Software-Board Support Packages section.
In your particular scenario, the board you’re using is from Adeneo, their BSP are available here, although the source code is moderated but you may contact them for more information on how to get it:
http://www.adeneo-embedded.com/Products/Board-Support-Packages/Congatec-conga-QMX6-BSPs