PCI_VC_RES_CTRL_ENABLE
if (ctrl2 & PCI_VC_RES_CTRL_ENABLE) {
ctrl2 &= ~PCI_VC_RES_CTRL_ENABLE;
ctrl2 |= PCI_VC_RES_CTRL_ENABLE;
ctrl |= PCI_VC_RES_CTRL_ENABLE;
tmp &= PCI_VC_RES_CTRL_ENABLE;
tmp |= ctrl & ~PCI_VC_RES_CTRL_ENABLE;
if ((ctrl ^ tmp) & PCI_VC_RES_CTRL_ENABLE)