To program the board with 128MB DDR, you could just modify the DDR 
initialization of your .gel file!!

 Change bank count!!

 When you want to change the vender & size of flash you need modify the 
Flashwrite_nand.out

 

   /*

     *  DDR Initialization

     */

    DDRCTL = 0x50006404;        // DDR PHY Ctrl - DLL powered, ReadLatency=6

    SDCFG  = 0x00008622;        // DDR Bank Cfg - 32-bit bus, CAS=3, 4 banks, 
1024-word pages

    SDTIM0 = 0x229229c9;        // DDR Timing

    SDTIM1 = 0x0012c722;        // DDR Timing

    SDCFG  = 0x00000622;        // DDR Bank Cfg - disable timing reg access

 

 

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