diff options
Diffstat (limited to 'arch/sparc/kernel/of_device.c')
-rw-r--r-- | arch/sparc/kernel/of_device.c | 76 |
1 files changed, 54 insertions, 22 deletions
diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c index c481d45f97b7..0837bd52e28f 100644 --- a/arch/sparc/kernel/of_device.c +++ b/arch/sparc/kernel/of_device.c @@ -29,15 +29,38 @@ struct of_device *of_find_device_by_node(struct device_node *dp) } EXPORT_SYMBOL(of_find_device_by_node); -#ifdef CONFIG_PCI -struct bus_type ebus_bus_type; -EXPORT_SYMBOL(ebus_bus_type); -#endif +unsigned int irq_of_parse_and_map(struct device_node *node, int index) +{ + struct of_device *op = of_find_device_by_node(node); + + if (!op || index >= op->num_irqs) + return 0; + + return op->irqs[index]; +} +EXPORT_SYMBOL(irq_of_parse_and_map); + +/* Take the archdata values for IOMMU, STC, and HOSTDATA found in + * BUS and propagate to all child of_device objects. + */ +void of_propagate_archdata(struct of_device *bus) +{ + struct dev_archdata *bus_sd = &bus->dev.archdata; + struct device_node *bus_dp = bus->node; + struct device_node *dp; + + for (dp = bus_dp->child; dp; dp = dp->sibling) { + struct of_device *op = of_find_device_by_node(dp); -#ifdef CONFIG_SBUS -struct bus_type sbus_bus_type; -EXPORT_SYMBOL(sbus_bus_type); -#endif + op->dev.archdata.iommu = bus_sd->iommu; + op->dev.archdata.stc = bus_sd->stc; + op->dev.archdata.host_controller = bus_sd->host_controller; + op->dev.archdata.numa_node = bus_sd->numa_node; + + if (dp->child) + of_propagate_archdata(op); + } +} struct bus_type of_platform_bus_type; EXPORT_SYMBOL(of_platform_bus_type); @@ -241,7 +264,7 @@ static int of_bus_sbus_map(u32 *addr, const u32 *range, int na, int ns, int pna) return of_bus_default_map(addr, range, na, ns, pna); } -static unsigned int of_bus_sbus_get_flags(const u32 *addr) +static unsigned long of_bus_sbus_get_flags(const u32 *addr, unsigned long flags) { return IORESOURCE_MEM; } @@ -327,6 +350,27 @@ static int __init build_one_resource(struct device_node *parent, return 1; } +static int __init use_1to1_mapping(struct device_node *pp) +{ + /* If we have a ranges property in the parent, use it. */ + if (of_find_property(pp, "ranges", NULL) != NULL) + return 0; + + /* Some SBUS devices use intermediate nodes to express + * hierarchy within the device itself. These aren't + * real bus nodes, and don't have a 'ranges' property. + * But, we should still pass the translation work up + * to the SBUS itself. + */ + if (!strcmp(pp->name, "dma") || + !strcmp(pp->name, "espdma") || + !strcmp(pp->name, "ledma") || + !strcmp(pp->name, "lebuffer")) + return 0; + + return 1; +} + static int of_resource_verbose; static void __init build_device_resources(struct of_device *op, @@ -373,10 +417,7 @@ static void __init build_device_resources(struct of_device *op, flags = bus->get_flags(reg, 0); - /* If the immediate parent has no ranges property to apply, - * just use a 1<->1 mapping. - */ - if (of_find_property(pp, "ranges", NULL) == NULL) { + if (use_1to1_mapping(pp)) { result = of_read_addr(addr, na); goto build_res; } @@ -565,15 +606,6 @@ static int __init of_bus_driver_init(void) int err; err = of_bus_type_init(&of_platform_bus_type, "of"); -#ifdef CONFIG_PCI - if (!err) - err = of_bus_type_init(&ebus_bus_type, "ebus"); -#endif -#ifdef CONFIG_SBUS - if (!err) - err = of_bus_type_init(&sbus_bus_type, "sbus"); -#endif - if (!err) scan_of_devices(); |