PCI_BRIDGE_BUS_SECONDARY
v &= ~(PCI_BRIDGE_BUS_SUBORDINATE | PCI_BRIDGE_BUS_SECONDARY |
__SHIFTIN(1, PCI_BRIDGE_BUS_SECONDARY) |
__SHIFTIN(startbus & 0xff, PCI_BRIDGE_BUS_SECONDARY) |
__SHIFTIN(startbus & 0xff, PCI_BRIDGE_BUS_SECONDARY) |
busreg |= __SHIFTIN(sec, PCI_BRIDGE_BUS_SECONDARY);
__SHIFTIN(pb->next_busno, PCI_BRIDGE_BUS_SECONDARY) |
((uint32_t)__SHIFTOUT((reg), PCI_BRIDGE_BUS_SECONDARY))