LOONGSON_PCI_MEM_END
#define LOONGSON_PCI_MEM_END (0x80000000ul-1) /* 2G */
#define LOONGSON_PCI_MEM_END (LOONGSON_PCILO1_BASE + 0x04000000 * 2)
#define LOONGSON_PCI_MEM_END 0x7effffffUL