DDR initializing for OMAP-L138 EDMA3 mcsdk example

Hi All!

I try to understand structures of example projects for OMAP-L138 from TI. I investigated edma3_lld_02_11_09_08 examples. For ping-pong sample I see that routine use adress location of DDR:

signed char __attribute__((section(".my_sect_ddr"))) _pingpongDestBuf[PING_PONG_DDR_BUFFER_SIZE] __attribute__ ((aligned (EDMA3_CACHE_LINE_SIZE_IN_BYTES)));

but I do not see any external memory initialization function in the project. Project also has no any *.gel scripts which is also can provide initialize routine.

 Where DDR initialization performing?