int dram_init(void)
 {
        gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE) +
-               get_ram_size((long *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
+               get_ram_size((long *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE) +
+               get_ram_size((long *)PHYS_SDRAM_3, PHYS_SDRAM_3_SIZE) +
+               get_ram_size((long *)PHYS_SDRAM_4, PHYS_SDRAM_4_SIZE);
 
        return 0;
 }
        gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
        gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
        gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
+       gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
+       gd->bd->bi_dram[2].size = PHYS_SDRAM_3_SIZE;
+       gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
+       gd->bd->bi_dram[3].size = PHYS_SDRAM_4_SIZE;
 }
 
 static unsigned int get_hw_revision(void)