CFGADDR
data = READCFG32(CFGADDR(bus, devfn, where));
u32 cfgaddr = CFGADDR(bus, devfn, where);
data = READCFG32(CFGADDR(bus, devfn, where));
u32 cfgaddr = CFGADDR(bus, devfn, where);
data = READCFG32(CFGADDR(bus, devfn, where));
u32 cfgaddr = CFGADDR(bus, devfn, where);