C++ rman_manage_region函数代码示例

static void
xlp_pci_init_resources(void)
{

	irq_rman.rm_start = 0;
	irq_rman.rm_end = 255;
	irq_rman.rm_type = RMAN_ARRAY;
	irq_rman.rm_descr = "PCI Mapped Interrupts";
	if (rman_init(&irq_rman)
	    || rman_manage_region(&irq_rman, 0, 255))
		panic("pci_init_resources irq_rman");

	port_rman.rm_start = 0;
	port_rman.rm_end = ~0ul;
	port_rman.rm_type = RMAN_ARRAY;
	port_rman.rm_descr = "I/O ports";
	if (rman_init(&port_rman)
	    || rman_manage_region(&port_rman, 0x14000000UL, 0x15ffffffUL))
		panic("pci_init_resources port_rman");

	mem_rman.rm_start = 0;
	mem_rman.rm_end = ~0ul;
	mem_rman.rm_type = RMAN_ARRAY;
	mem_rman.rm_descr = "I/O memory";
	if (rman_init(&mem_rman)
	    || rman_manage_region(&mem_rman, 0xd0000000ULL, 0xdfffffffULL))
		panic("pci_init_resources mem_rman");

	emul_rman.rm_start = 0;
	emul_rman.rm_end = ~0ul;
	emul_rman.rm_type = RMAN_ARRAY;
	emul_rman.rm_descr = "Emulated MEMIO";
	if (rman_init(&emul_rman)
	    || rman_manage_region(&emul_rman, 0x18000000ULL, 0x18ffffffULL))
		panic("pci_init_resources emul_rman");

}

static int
obio_attach(device_t dev)
{
	struct obio_softc *sc = device_get_softc(dev);

	obio_bs_tag = arm_base_bs_tag;
	sc->oba_st = obio_bs_tag;
	sc->oba_rman.rm_type = RMAN_ARRAY;
	sc->oba_rman.rm_descr = "OBIO I/O";
	if (rman_init(&sc->oba_rman) != 0 ||
	    rman_manage_region(&sc->oba_rman,
	    IOP34X_UART0_VADDR, IOP34X_UART1_VADDR + 0x40) != 0)
		panic("obio_attach: failed to set up I/O rman");
	sc->oba_irq_rman.rm_type = RMAN_ARRAY;
	sc->oba_irq_rman.rm_descr = "OBIO IRQ";
	if (rman_init(&sc->oba_irq_rman) != 0 ||
	    rman_manage_region(&sc->oba_irq_rman, ICU_INT_UART0, ICU_INT_UART1) != 0)
		panic("obio_attach: failed to set up IRQ rman");
	device_add_child(dev, "uart", 0);
	device_add_child(dev, "uart", 1);
	bus_generic_probe(dev);
	bus_generic_attach(dev);
	return (0);
}

int
obio_attach(device_t dev)
{
	struct obio_softc *sc = device_get_softc(dev);

	sc->oba_st = &obio_bs_tag;
	sc->oba_addr = IQ80321_OBIO_BASE;
	sc->oba_size = IQ80321_OBIO_SIZE;
	sc->oba_rman.rm_type = RMAN_ARRAY;
	sc->oba_rman.rm_descr = "OBIO I/O";
	if (rman_init(&sc->oba_rman) != 0 ||
	    rman_manage_region(&sc->oba_rman,
	    sc->oba_addr, sc->oba_addr + sc->oba_size) != 0)
		panic("obio_attach: failed to set up I/O rman");
	sc->oba_irq_rman.rm_type = RMAN_ARRAY;
	sc->oba_irq_rman.rm_descr = "OBIO IRQ";
	if (rman_init(&sc->oba_irq_rman) != 0 ||
	    rman_manage_region(&sc->oba_irq_rman, 28, 28) != 0)
		panic("obio_attach: failed to set up IRQ rman");
	device_add_child(dev, "uart", 0);
	bus_generic_probe(dev);
	bus_generic_attach(dev);
	return (0);
}

static int
nexus_attach(device_t dev)
{

	mem_rman.rm_start = 0;
	mem_rman.rm_end = ~0ul;
	mem_rman.rm_type = RMAN_ARRAY;
	mem_rman.rm_descr = "I/O memory addresses";
	if (rman_init(&mem_rman) || rman_manage_region(&mem_rman, 0, ~0))
		panic("nexus_probe mem_rman");

	/*
	 * First, deal with the children we know about already
	 */
	bus_generic_probe(dev);
	bus_generic_attach(dev);

	return (0);
}

static void
wiibus_init_device_resources(struct rman *rm, struct wiibus_devinfo *dinfo,
    unsigned int rid, uintptr_t addr, size_t len, unsigned int irq)

{

	if (!dinfo->di_init) {
		resource_list_init(&dinfo->di_resources);
		dinfo->di_init++;
	}
	if (addr) {
		rman_manage_region(rm, addr, addr + len - 1);
		resource_list_add(&dinfo->di_resources, SYS_RES_MEMORY, rid,
		    addr, addr + len, len);
	}
	if (irq)
		resource_list_add(&dinfo->di_resources, SYS_RES_IRQ, rid,
		    irq, irq, 1);
}

/* Allocate region records for the given port, and add the port's memory
 * range to the mem_rman */
static int
chipc_rman_init_regions (struct chipc_softc *sc, bhnd_port_type type,
    u_int port)
{
	struct	chipc_region	*cr;
	rman_res_t		 start, end;
	u_int			 num_regions;
	int			 error;

	num_regions = bhnd_get_region_count(sc->dev, type, port);
	for (u_int region = 0; region < num_regions; region++) {
		/* Allocate new region record */
		cr = chipc_alloc_region(sc, type, port, region);
		if (cr == NULL)
			return (ENODEV);

		/* Can't manage regions that cannot be allocated */
		if (cr->cr_rid < 0) {
			BHND_DEBUG_DEV(sc->dev, "no rid for chipc region "
			    "%s%u.%u", bhnd_port_type_name(type), port, region);
			chipc_free_region(sc, cr);
			continue;
		}

		/* Add to rman's managed range */
		start = cr->cr_addr;
		end = cr->cr_end;
		if ((error = rman_manage_region(&sc->mem_rman, start, end))) {
			chipc_free_region(sc, cr);
			return (error);
		}

		/* Add to region list */
		STAILQ_INSERT_TAIL(&sc->mem_regions, cr, cr_link);
	}

	return (0);
}

/*
 * Create an sgmap to manage a range of bus addresses which map
 * physical memory using a scatter-gather map.
 */
struct sgmap *
sgmap_map_create(bus_addr_t sba, bus_addr_t eba,
		 sgmap_map_callback *map, void *arg)
{
	struct sgmap *sgmap;
    
	sgmap = malloc(sizeof *sgmap, M_SGMAP, M_NOWAIT);
	if (!sgmap)
		return 0;


	sgmap->rm.rm_start = sba;
	sgmap->rm.rm_end = eba;
	sgmap->rm.rm_type = RMAN_ARRAY;
	sgmap->rm.rm_descr = "Scatter Gather Bus Addresses";
	rman_init(&sgmap->rm);
	rman_manage_region(&sgmap->rm, sba, eba);
	sgmap->map = map;
	sgmap->arg = arg;
	sgmap->sba = sba;
	sgmap->eba = eba;

	return sgmap;
}

static int
pxa_smi_attach(device_t dev)
{
	int		error, i, dunit;
	const char	*dname;
	struct		pxa_smi_softc *sc;

	sc = (struct pxa_smi_softc *)device_get_softc(dev);

	error = bus_alloc_resources(dev, pxa_smi_spec, sc->ps_res);
	if (error) {
		device_printf(dev, "could not allocate resources\n");
		return (ENXIO);
	}

	sc->ps_mem.rm_type = RMAN_ARRAY;
	sc->ps_mem.rm_descr = device_get_nameunit(dev);
	if (rman_init(&sc->ps_mem) != 0)
		panic("pxa_smi_attach: failed to init mem rman");
	if (rman_manage_region(&sc->ps_mem, 0, PXA2X0_CS_SIZE * 6) != 0)
		panic("pxa_smi_attach: failed ot set up mem rman");

	sc->ps_bst = base_tag;
	sc->ps_base = rman_get_start(sc->ps_res[0]);

	i = 0;
	while (resource_find_match(&i, &dname, &dunit, "at",
	    device_get_nameunit(dev)) == 0) {
		pxa_smi_add_device(dev, dname, dunit);
	}

	bus_generic_probe(dev);
	bus_generic_attach(dev);

	return (0);
}

static int
nexus_attach(device_t dev)
{
	phandle_t	root;
	phandle_t	child;
	struct		nexus_softc *sc;
	u_long		start, end;

	sc = device_get_softc(dev);

	start = 0;
	end = MAX_PICS*INTR_VECTORS - 1;

	sc->sc_rman.rm_start = start;
	sc->sc_rman.rm_end = end;
	sc->sc_rman.rm_type = RMAN_ARRAY;
	sc->sc_rman.rm_descr = "Interrupt request lines";
	if (rman_init(&sc->sc_rman) ||
	    rman_manage_region(&sc->sc_rman, start, end))
		panic("nexus_probe IRQ rman");

	if ((root = OF_peer(0)) == 0)
		return (bus_generic_attach(dev));
		
	/*
	 * Now walk the OFW tree to locate top-level devices
	 */
	for (child = OF_child(root); child != 0; child = OF_peer(child)) {
		if (child == -1)
			panic("nexus_probe(): OF_child failed.");
		(void)nexus_device_from_node(dev, child);

	}

	return (bus_generic_attach(dev));
}

static int
fdtbus_attach(device_t dev)
{
	phandle_t root;
	phandle_t child;
	struct fdtbus_softc *sc;
	u_long start, end;
	int error;

	if ((root = OF_finddevice("/")) == -1)
		panic("fdtbus_attach: no root node.");

	sc = device_get_softc(dev);

	/*
	 * IRQ rman.
	 */
	start = 0;
	end = ~0;
	sc->sc_irq.rm_start = start;
	sc->sc_irq.rm_end = end;
	sc->sc_irq.rm_type = RMAN_ARRAY;
	sc->sc_irq.rm_descr = "Interrupt request lines";
	if ((error = rman_init(&sc->sc_irq)) != 0) {
		device_printf(dev, "could not init IRQ rman, error = %d\n",
		    error);
		return (error);
	}
	if ((error = rman_manage_region(&sc->sc_irq, start, end)) != 0) {
		device_printf(dev, "could not manage IRQ region, error = %d\n",
		    error);
		return (error);
	}

	/*
	 * Mem-mapped I/O space rman.
	 */
	start = 0;
	end = ~0ul;
	sc->sc_mem.rm_start = start;
	sc->sc_mem.rm_end = end;
	sc->sc_mem.rm_type = RMAN_ARRAY;
	sc->sc_mem.rm_descr = "I/O memory";
	if ((error = rman_init(&sc->sc_mem)) != 0) {
		device_printf(dev, "could not init I/O mem rman, error = %d\n",
		    error);
		return (error);
	}
	if ((error = rman_manage_region(&sc->sc_mem, start, end)) != 0) {
		device_printf(dev, "could not manage I/O mem region, "
		    "error = %d\n", error);
		return (error);
	}

	/*
	 * Walk the FDT root node and add top-level devices as our children.
	 */
	for (child = OF_child(root); child != 0; child = OF_peer(child)) {
		/* Check and process 'status' property. */
		if (!(fdt_is_enabled(child)))
			continue;

		newbus_device_from_fdt_node(dev, child);
	}

	return (bus_generic_attach(dev));
}

static int
iobus_attach(device_t dev)
{
	struct iobus_softc *sc;
        struct iobus_devinfo *dinfo;
        phandle_t  root;
        phandle_t  child;
        device_t   cdev;
        char *name;
	u_int reg[2];
	int size;

	sc = device_get_softc(dev);
	sc->sc_node = ofw_bus_get_node(dev);

	/*
	 * Find the base addr/size of the iobus, and initialize the
	 * resource manager
	 */
	size = OF_getprop(sc->sc_node, "reg", reg, sizeof(reg));
	if (size == sizeof(reg)) {
		sc->sc_addr = reg[0];
		sc->sc_size = reg[1];
	} else {
		return (ENXIO);
	}

	sc->sc_mem_rman.rm_type = RMAN_ARRAY;
        sc->sc_mem_rman.rm_descr = "IOBus Device Memory";
        if (rman_init(&sc->sc_mem_rman) != 0) {
		device_printf(dev,
                    "failed to init mem range resources\n");
                return (ENXIO);
	}
	rman_manage_region(&sc->sc_mem_rman, 0, sc->sc_size);

        /*
         * Iterate through the sub-devices
         */
        root = sc->sc_node;

        for (child = OF_child(root); child != 0; child = OF_peer(child)) {
                OF_getprop_alloc(child, "name", 1, (void **)&name);

                cdev = device_add_child(dev, NULL, -1);
                if (cdev != NULL) {
                        dinfo = malloc(sizeof(*dinfo), M_IOBUS, M_WAITOK);
			memset(dinfo, 0, sizeof(*dinfo));
			resource_list_init(&dinfo->id_resources);
                        dinfo->id_node = child;
                        dinfo->id_name = name;
			iobus_add_intr(child, dinfo);
			iobus_add_reg(child, dinfo, sc->sc_addr);
                        device_set_ivars(cdev, dinfo);
                } else {
                        free(name, M_OFWPROP);
                }
        }

        return (bus_generic_attach(dev));
}

void
nexus_init_resources(void)
{
	int irq;

	/*
	 * XXX working notes:
	 *
	 * - IRQ resource creation should be moved to the PIC/APIC driver.
	 * - DRQ resource creation should be moved to the DMAC driver.
	 * - The above should be sorted to probe earlier than any child busses.
	 *
	 * - Leave I/O and memory creation here, as child probes may need them.
	 *   (especially eg. ACPI)
	 */

	/*
	 * IRQ's are on the mainboard on old systems, but on the ISA part
	 * of PCI->ISA bridges.  There would be multiple sets of IRQs on
	 * multi-ISA-bus systems.  PCI interrupts are routed to the ISA
	 * component, so in a way, PCI can be a partial child of an ISA bus(!).
	 * APIC interrupts are global though.
	 */
	irq_rman.rm_start = 0;
	irq_rman.rm_type = RMAN_ARRAY;
	irq_rman.rm_descr = "Interrupt request lines";
	irq_rman.rm_end = NUM_IO_INTS - 1;
	if (rman_init(&irq_rman))
		panic("nexus_init_resources irq_rman");

	/*
	 * We search for regions of existing IRQs and add those to the IRQ
	 * resource manager.
	 */
	for (irq = 0; irq < NUM_IO_INTS; irq++)
		if (intr_lookup_source(irq) != NULL)
			if (rman_manage_region(&irq_rman, irq, irq) != 0)
				panic("nexus_init_resources irq_rman add");

	/*
	 * ISA DMA on PCI systems is implemented in the ISA part of each
	 * PCI->ISA bridge and the channels can be duplicated if there are
	 * multiple bridges.  (eg: laptops with docking stations)
	 */
	drq_rman.rm_start = 0;
#ifdef PC98
	drq_rman.rm_end = 3;
#else
	drq_rman.rm_end = 7;
#endif
	drq_rman.rm_type = RMAN_ARRAY;
	drq_rman.rm_descr = "DMA request lines";
	/* XXX drq 0 not available on some machines */
	if (rman_init(&drq_rman)
	    || rman_manage_region(&drq_rman,
				  drq_rman.rm_start, drq_rman.rm_end))
		panic("nexus_init_resources drq_rman");

	/*
	 * However, IO ports and Memory truely are global at this level,
	 * as are APIC interrupts (however many IO APICS there turn out
	 * to be on large systems..)
	 */
	port_rman.rm_start = 0;
	port_rman.rm_end = 0xffff;
	port_rman.rm_type = RMAN_ARRAY;
	port_rman.rm_descr = "I/O ports";
	if (rman_init(&port_rman)
	    || rman_manage_region(&port_rman, 0, 0xffff))
		panic("nexus_init_resources port_rman");

	mem_rman.rm_start = 0;
	mem_rman.rm_end = ~0ul;
	mem_rman.rm_type = RMAN_ARRAY;
	mem_rman.rm_descr = "I/O memory addresses";
	if (rman_init(&mem_rman)
	    || rman_manage_region(&mem_rman, 0, ~0))
		panic("nexus_init_resources mem_rman");
}

static int
sbus_probe(device_t dev)
{
	struct sbus_softc *sc = device_get_softc(dev);
	struct sbus_devinfo *sdi;
	struct sbus_ranges *range;
	struct resource *res;
	device_t cdev;
	bus_addr_t phys;
	bus_size_t size;
	char *name, *cname, *t;
	phandle_t child, node = nexus_get_node(dev);
	u_int64_t mr;
	int intr, clock, rid, vec, i;

	t = nexus_get_device_type(dev);
	if (((t == NULL || strcmp(t, OFW_SBUS_TYPE) != 0)) &&
	    strcmp(nexus_get_name(dev), OFW_SBUS_NAME) != 0)
		return (ENXIO);
	device_set_desc(dev, "U2S UPA-SBus bridge");

	if ((sc->sc_nreg = OF_getprop_alloc(node, "reg", sizeof(*sc->sc_reg),
	    (void **)&sc->sc_reg)) == -1) {
		panic("sbus_probe: error getting reg property");
	}
	if (sc->sc_nreg < 1)
		panic("sbus_probe: bogus properties");
	phys = UPA_REG_PHYS(&sc->sc_reg[0]);
	size = UPA_REG_SIZE(&sc->sc_reg[0]);
	rid = 0;
	sc->sc_sysio_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, phys,
	    phys + size - 1, size, RF_ACTIVE);
	if (sc->sc_sysio_res == NULL ||
	    rman_get_start(sc->sc_sysio_res) != phys)
		panic("sbus_probe: can't allocate device memory");
	sc->sc_bustag = rman_get_bustag(sc->sc_sysio_res);
	sc->sc_bushandle = rman_get_bushandle(sc->sc_sysio_res);

	if (OF_getprop(node, "interrupts", &intr, sizeof(intr)) == -1)
		panic("sbus_probe: cannot get IGN");
	sc->sc_ign = intr & INTMAP_IGN_MASK;	/* Find interrupt group no */
	sc->sc_cbustag = sbus_alloc_bustag(sc);

	/*
	 * Record clock frequency for synchronous SCSI.
	 * IS THIS THE CORRECT DEFAULT??
	 */
	if (OF_getprop(node, "clock-frequency", &clock, sizeof(clock)) == -1)
		clock = 25000000;
	sc->sc_clockfreq = clock;
	clock /= 1000;
	device_printf(dev, "clock %d.%03d MHz\n", clock / 1000, clock % 1000);

	sc->sc_dmatag = nexus_get_dmatag(dev);
	if (bus_dma_tag_create(sc->sc_dmatag, 8, 1, 0, 0x3ffffffff, NULL, NULL,
	    0x3ffffffff, 0xff, 0xffffffff, 0, &sc->sc_cdmatag) != 0)
		panic("bus_dma_tag_create failed");
	/* Customize the tag */
	sc->sc_cdmatag->cookie = sc;
	sc->sc_cdmatag->dmamap_create = sbus_dmamap_create;
	sc->sc_cdmatag->dmamap_destroy = sbus_dmamap_destroy;
	sc->sc_cdmatag->dmamap_load = sbus_dmamap_load;
	sc->sc_cdmatag->dmamap_unload = sbus_dmamap_unload;
	sc->sc_cdmatag->dmamap_sync = sbus_dmamap_sync;
	sc->sc_cdmatag->dmamem_alloc = sbus_dmamem_alloc;
	sc->sc_cdmatag->dmamem_free = sbus_dmamem_free;
	/* XXX: register as root dma tag (kluge). */
	sparc64_root_dma_tag = sc->sc_cdmatag;

	/*
	 * Collect address translations from the OBP.
	 */
	if ((sc->sc_nrange = OF_getprop_alloc(node, "ranges",
	    sizeof(*range), (void **)&range)) == -1) {
		panic("%s: error getting ranges property",
		    device_get_name(dev));
	}
	sc->sc_rd = (struct sbus_rd *)malloc(sizeof(*sc->sc_rd) * sc->sc_nrange,
	    M_DEVBUF, M_NOWAIT);
	if (sc->sc_rd == NULL)
		panic("sbus_probe: could not allocate rmans");
	/*
	 * Preallocate all space that the SBus bridge decodes, so that nothing
	 * else gets in the way; set up rmans etc.
	 */
	for (i = 0; i < sc->sc_nrange; i++) {
		phys = range[i].poffset | ((bus_addr_t)range[i].pspace << 32);
		size = range[i].size;
		sc->sc_rd[i].rd_slot = range[i].cspace;
		sc->sc_rd[i].rd_coffset = range[i].coffset;
		sc->sc_rd[i].rd_cend = sc->sc_rd[i].rd_coffset + size;
		rid = 0;
		if ((res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, phys,
		    phys + size - 1, size, RF_ACTIVE)) == NULL)
			panic("sbus_probe: could not allocate decoded range");
		sc->sc_rd[i].rd_bushandle = rman_get_bushandle(res);
		sc->sc_rd[i].rd_rman.rm_type = RMAN_ARRAY;
		sc->sc_rd[i].rd_rman.rm_descr = "SBus Device Memory";
		if (rman_init(&sc->sc_rd[i].rd_rman) != 0 ||
		    rman_manage_region(&sc->sc_rd[i].rd_rman, 0, size) != 0)
//.........这里部分代码省略.........

static int
nexus_probe(device_t dev)
{

	device_quiet(dev);	/* suppress attach message for neatness */

	/* 
	 * XXX working notes:
	 *
	 * - IRQ resource creation should be moved to the PIC/APIC driver.
	 * - DRQ resource creation should be moved to the DMAC driver.
	 * - The above should be sorted to probe earlier than any child busses.
	 *
	 * - Leave I/O and memory creation here, as child probes may need them.
	 *   (especially eg. ACPI)
	 */

	/*
	 * IRQ's are on the mainboard on old systems, but on the ISA part
	 * of PCI->ISA bridges.  There would be multiple sets of IRQs on
	 * multi-ISA-bus systems.  PCI interrupts are routed to the ISA
	 * component, so in a way, PCI can be a partial child of an ISA bus(!).
	 * APIC interrupts are global though.
	 *
	 * XXX We depend on the AT PIC driver correctly claiming IRQ 2
	 *     to prevent its reuse elsewhere in the !APIC_IO case.
	 */
	irq_rman.rm_start = 0;
	irq_rman.rm_type = RMAN_ARRAY;
	irq_rman.rm_descr = "Interrupt request lines";
#ifdef APIC_IO
	irq_rman.rm_end = APIC_INTMAPSIZE - 1;
#else
	irq_rman.rm_end = 15;
#endif
	if (rman_init(&irq_rman)
	    || rman_manage_region(&irq_rman,
				  irq_rman.rm_start, irq_rman.rm_end))
		panic("nexus_probe irq_rman");

	/*
	 * ISA DMA on PCI systems is implemented in the ISA part of each
	 * PCI->ISA bridge and the channels can be duplicated if there are
	 * multiple bridges.  (eg: laptops with docking stations)
	 */
	drq_rman.rm_start = 0;
#ifdef PC98
	drq_rman.rm_end = 3;
#else
	drq_rman.rm_end = 7;
#endif
	drq_rman.rm_type = RMAN_ARRAY;
	drq_rman.rm_descr = "DMA request lines";
	/* XXX drq 0 not available on some machines */
	if (rman_init(&drq_rman)
	    || rman_manage_region(&drq_rman,
				  drq_rman.rm_start, drq_rman.rm_end))
		panic("nexus_probe drq_rman");

	/*
	 * However, IO ports and Memory truely are global at this level,
	 * as are APIC interrupts (however many IO APICS there turn out
	 * to be on large systems..)
	 */
	port_rman.rm_start = 0;
	port_rman.rm_end = 0xffff;
	port_rman.rm_type = RMAN_ARRAY;
	port_rman.rm_descr = "I/O ports";
	if (rman_init(&port_rman)
	    || rman_manage_region(&port_rman, 0, 0xffff))
		panic("nexus_probe port_rman");

	mem_rman.rm_start = 0;
	mem_rman.rm_end = ~0u;
	mem_rman.rm_type = RMAN_ARRAY;
	mem_rman.rm_descr = "I/O memory addresses";
	if (rman_init(&mem_rman)
	    || rman_manage_region(&mem_rman, 0, ~0))
		panic("nexus_probe mem_rman");

	return 0;
}

static int
lbc_attach(device_t dev)
{
	struct lbc_softc *sc;
	struct lbc_devinfo *di;
	struct rman *rm;
	u_long offset, start, size;
	device_t cdev;
	phandle_t node, child;
	pcell_t *ranges, *rangesptr;
	int tuple_size, tuples;
	int par_addr_cells;
	int bank, error, i;

	sc = device_get_softc(dev);
	sc->sc_dev = dev;

	sc->sc_mrid = 0;
	sc->sc_mres = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->sc_mrid,
	    RF_ACTIVE);
	if (sc->sc_mres == NULL)
		return (ENXIO);

	sc->sc_bst = rman_get_bustag(sc->sc_mres);
	sc->sc_bsh = rman_get_bushandle(sc->sc_mres);

	for (bank = 0; bank < LBC_DEV_MAX; bank++) {
		bus_space_write_4(sc->sc_bst, sc->sc_bsh, LBC85XX_BR(bank), 0);
		bus_space_write_4(sc->sc_bst, sc->sc_bsh, LBC85XX_OR(bank), 0);
	}

	/*
	 * Initialize configuration register:
	 * - enable Local Bus
	 * - set data buffer control signal function
	 * - disable parity byte select
	 * - set ECC parity type
	 * - set bus monitor timing and timer prescale
	 */
	bus_space_write_4(sc->sc_bst, sc->sc_bsh, LBC85XX_LBCR, 0);

	/*
	 * Initialize clock ratio register:
	 * - disable PLL bypass mode
	 * - configure LCLK delay cycles for the assertion of LALE
	 * - set system clock divider
	 */
	bus_space_write_4(sc->sc_bst, sc->sc_bsh, LBC85XX_LCRR, 0x00030008);

	bus_space_write_4(sc->sc_bst, sc->sc_bsh, LBC85XX_LTEDR, 0);
	bus_space_write_4(sc->sc_bst, sc->sc_bsh, LBC85XX_LTESR, ~0);
	bus_space_write_4(sc->sc_bst, sc->sc_bsh, LBC85XX_LTEIR, 0x64080001);

	sc->sc_irid = 0;
	sc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->sc_irid,
	    RF_ACTIVE | RF_SHAREABLE);
	if (sc->sc_ires != NULL) {
		error = bus_setup_intr(dev, sc->sc_ires,
		    INTR_TYPE_MISC | INTR_MPSAFE, NULL, lbc_intr, sc,
		    &sc->sc_icookie);
		if (error) {
			device_printf(dev, "could not activate interrupt\n");
			bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irid,
			    sc->sc_ires);
			sc->sc_ires = NULL;
		}
	}

	sc->sc_ltesr = ~0;

	rangesptr = NULL;

	rm = &sc->sc_rman;
	rm->rm_type = RMAN_ARRAY;
	rm->rm_descr = "Local Bus Space";
	rm->rm_start = 0UL;
	rm->rm_end = ~0UL;
	error = rman_init(rm);
	if (error)
		goto fail;

	error = rman_manage_region(rm, rm->rm_start, rm->rm_end);
	if (error) {
		rman_fini(rm);
		goto fail;
	}

	/*
	 * Process 'ranges' property.
	 */
	node = ofw_bus_get_node(dev);
	if ((fdt_addrsize_cells(node, &sc->sc_addr_cells,
	    &sc->sc_size_cells)) != 0) {
		error = ENXIO;
		goto fail;
	}

	par_addr_cells = fdt_parent_addr_cells(node);
	if (par_addr_cells > 2) {
		device_printf(dev, "unsupported parent #addr-cells\n");
//.........这里部分代码省略.........