static int
apb_attach(device_t dev)
{
struct apb_softc *sc;
device_t child;
sc = device_get_softc(dev);
sc->dev = dev;
/*
* Get current bridge configuration.
*/
sc->secbus = pci_read_config(dev, PCIR_SECBUS_1, 1);
sc->subbus = pci_read_config(dev, PCIR_SUBBUS_1, 1);
sc->iomap = pci_read_config(dev, APBR_IOMAP, 1);
sc->memmap = pci_read_config(dev, APBR_MEMMAP, 1);
if (bootverbose) {
device_printf(dev, " secondary bus %d\n", sc->secbus);
device_printf(dev, " subordinate bus %d\n", sc->subbus);
device_printf(dev, " I/O decode ");
apb_map_print(sc->iomap, APB_IO_SCALE);
printf("\n");
device_printf(dev, " memory decode ");
apb_map_print(sc->memmap, APB_MEM_SCALE);
printf("\n");
}
/*
* XXX If the subordinate bus number is less than the secondary bus
* number, we should pick a better value. One sensible alternative
* would be to pick 255; the only tradeoff here is that configuration
* transactions would be more widely routed than absolutely necessary.
*/
if (sc->secbus != 0) {
child = device_add_child(dev, "pci", -1);
if (child != NULL)
return (bus_generic_attach(dev));
} else
panic("apb_attach: APB with uninitialized secbus");
/* no secondary bus; we should have fixed this */
return (0);
}
static int
apb_attach(device_t dev)
{
struct apb_softc *sc;
struct sysctl_ctx_list *sctx;
struct sysctl_oid *soid;
sc = device_get_softc(dev);
/*
* Get current bridge configuration.
*/
sc->sc_bsc.ops_pcib_sc.domain = pci_get_domain(dev);
sc->sc_bsc.ops_pcib_sc.secstat =
pci_read_config(dev, PCIR_SECSTAT_1, 2);
sc->sc_bsc.ops_pcib_sc.command =
pci_read_config(dev, PCIR_COMMAND, 2);
sc->sc_bsc.ops_pcib_sc.pribus =
pci_read_config(dev, PCIR_PRIBUS_1, 1);
sc->sc_bsc.ops_pcib_sc.bus.sec =
pci_read_config(dev, PCIR_SECBUS_1, 1);
sc->sc_bsc.ops_pcib_sc.bus.sub =
pci_read_config(dev, PCIR_SUBBUS_1, 1);
sc->sc_bsc.ops_pcib_sc.bridgectl =
pci_read_config(dev, PCIR_BRIDGECTL_1, 2);
sc->sc_bsc.ops_pcib_sc.seclat =
pci_read_config(dev, PCIR_SECLAT_1, 1);
sc->sc_iomap = pci_read_config(dev, APBR_IOMAP, 1);
sc->sc_memmap = pci_read_config(dev, APBR_MEMMAP, 1);
/*
* Setup SYSCTL reporting nodes.
*/
sctx = device_get_sysctl_ctx(dev);
soid = device_get_sysctl_tree(dev);
SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "domain",
CTLFLAG_RD, &sc->sc_bsc.ops_pcib_sc.domain, 0,
"Domain number");
SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "pribus",
CTLFLAG_RD, &sc->sc_bsc.ops_pcib_sc.pribus, 0,
"Primary bus number");
SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "secbus",
CTLFLAG_RD, &sc->sc_bsc.ops_pcib_sc.bus.sec, 0,
"Secondary bus number");
SYSCTL_ADD_UINT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "subbus",
CTLFLAG_RD, &sc->sc_bsc.ops_pcib_sc.bus.sub, 0,
"Subordinate bus number");
ofw_pcib_gen_setup(dev);
if (bootverbose) {
device_printf(dev, " domain %d\n",
sc->sc_bsc.ops_pcib_sc.domain);
device_printf(dev, " secondary bus %d\n",
sc->sc_bsc.ops_pcib_sc.bus.sec);
device_printf(dev, " subordinate bus %d\n",
sc->sc_bsc.ops_pcib_sc.bus.sub);
device_printf(dev, " I/O decode ");
apb_map_print(sc->sc_iomap, APB_IO_SCALE);
printf("\n");
device_printf(dev, " memory decode ");
apb_map_print(sc->sc_memmap, APB_MEM_SCALE);
printf("\n");
}
device_add_child(dev, "pci", -1);
return (bus_generic_attach(dev));
}
