GT_PCICFG_ADDR
pcicfg_addr = (uint32_t *)MIPS_PHYS_TO_KSEG1(GT_BASE + GT_PCICFG_ADDR);
bus_space_write_4(pc->pc_bst, pc->pc_bsh, GT_PCICFG_ADDR,
bus_space_write_4(pc->pc_bst, pc->pc_bsh, GT_PCICFG_ADDR, 0);
bus_space_write_4(pc->pc_bst, pc->pc_bsh, GT_PCICFG_ADDR,
bus_space_write_4(pc->pc_bst, pc->pc_bsh, GT_PCICFG_ADDR, 0);
pcicfg_addr = (uint32_t *)MIPS_PHYS_TO_KSEG1(GT_BASE + GT_PCICFG_ADDR);