I'm using this definition for almost an year for my old SL-65:

Micro, 1, 1, "STi5518MVB-X", 0xd405041, 0xfffffff


IRD, 1, "comag sl65", 1, 1, 1, 1, 2, 2, 0x7FE00000, 0x7FFFFFC4, 0x7FFFFFFE, 0x7FFEFFC7, 0x7FEA1028, 0x7FEA1004 , "20.", 3, 4
IRDFlash, 1, "EN29LV160AB", 0x2249, 0x7FE00000, 0x200000, 2, 2, 0


Flash, 1, "EN29LV160AB", 0x2249, 0x200000, 1, 1, 0, 1, 35, 1
Sector, 1, 1, 0x00000, 0x4000
Sector, 1, 2, 0x04000, 0x2000
Sector, 1, 1, 0x08000, 0x8000
Sector, 1, 31, 0x10000, 0x10000


FlashMfg, 0x20, "STMicro"