pci_mech1_putl
pci_putl_func = pci_mech1_putl;
pci_putl_func = pci_mech1_putl;
pci_mech1_putl(bus, device, function, reg, val);
pci_mech1_putl(bus, device, function, reg, val);
extern void pci_mech1_putl(int bus, int dev, int func, int reg, uint32_t val);