Edit the efm32gg332f1024_pinout.edc file with simplicity studio.

Find it here: http://community.silabs.com/t5/Simplicity-Studio-and-Software/Simplicity-Studio-1-20-energyAware-Tools-OSX-Linux/m-p/107821#M8497

Download the GCC toolchain from:

https://launchpad.net/gcc-arm-embedded/+download

and set the LINUXCS environment var to point to it.

see also: 

http://joost.damad.be/2013/11/using-efm32-simplicitystudio-under-linux.html


