LOONGSON_MMIO_MEM_END   32 arch/mips/include/asm/mach-loongson64/mem.h #define LOONGSON_MMIO_MEM_END	0x20000000
LOONGSON_MMIO_MEM_END   34 arch/mips/include/asm/mach-loongson64/mem.h #define LOONGSON_MMIO_MEM_END	0x80000000