SoC/evalsoc: Change default ddr memory used to 256M

Signed-off-by: Huaqi Fang <[email protected]>

Author: fanghuaqi

SoC/evalsoc/Board/nuclei_fpga_eval/Source/GCC/evalsoc.memory

@@ -25,9 +25,9 @@ SRAM_MEMORY_SIZE = 0x40000;
 SRAM_MEMORY_ROM_SIZE = 0x20000;
 
 /* DDR Memory Information */
-/* Here we only use 512M DDR Memory Started from 0xA0000000 */
+/* Here we only use 256M DDR Memory Started from 0xA0000000 */
 DDR_MEMORY_PRESENT = 1;
 DDR_MEMORY_BASE = 0xA0000000;
-DDR_MEMORY_SIZE = 0x20000000;
+DDR_MEMORY_SIZE = 0x10000000;
 /* DDR_MEMORY_ROM_SIZE must be smaller than DDR_MEMORY_SIZE */
-DDR_MEMORY_ROM_SIZE = 0x10000000;
+DDR_MEMORY_ROM_SIZE = 0x08000000;