Atmel SB202 Firmware AVR474 IAR to GCC port
http://www.atmel.com/tools/ATAVRSB202.aspx?tab=overview ATAVRSB202 Firmware
IAR folder is as can be found on the Atmel website (updated August 2012)
GCC folder is the Atmel Studio 7 project based on the IAR version provided by Atmel.