Hi list, Any of you successfully used >512MB ram with MIPS SOC's. I have a requirement where I have to use 1 GB ram with RM9000 based SOC. I have enabled 64 Bit support and so far it is working with 512 MB of RAM. How ever if I increase memory beyond 512MB I am getting kernel panic. I am adding memory region from 0x00 add_memory_region(0 ,0x40000000 , BOOT_MEM_RAM). (PMON maps RAM from 0x0 to 0x40000000) Am I wrong here? It will be great if you can give some suggestion /point me to a working implementation. I am using 2.6.18 kernel. Thanks Anoop