-#define CONFIG_SYS_FLASH_BASE 0xFFFC0000
-#define CONFIG_SYS_MONITOR_BASE TEXT_BASE
-#define CONFIG_SYS_MONITOR_LEN (256 * 1024) /* Reserve 256 kB for Monitor */
-#define CONFIG_SYS_MALLOC_LEN (256 * 1024) /* Reserve 256 kB for malloc() */
+#define CONFIG_SYS_FLASH_BASE CONFIG_SYS_MONITOR_BASE
+#define CONFIG_SYS_MONITOR_BASE TEXT_BASE
+#define CONFIG_SYS_MONITOR_LEN (~(TEXT_BASE) + 1)
+#define CONFIG_SYS_MALLOC_LEN (256 * 1024)