Exemplo n.º 1
0
static int ltq_pci_probe(struct platform_device *pdev)
{
	struct resource *res_cfg, *res_bridge;

	pci_clear_flags(PCI_PROBE_ONLY);

	res_cfg = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	res_bridge = platform_get_resource(pdev, IORESOURCE_MEM, 1);
	if (!res_cfg || !res_bridge) {
		dev_err(&pdev->dev, "missing memory reources\n");
		return -EINVAL;
	}

	ltq_pci_membase = devm_request_and_ioremap(&pdev->dev, res_bridge);
	ltq_pci_mapped_cfg = devm_request_and_ioremap(&pdev->dev, res_cfg);

	if (!ltq_pci_membase || !ltq_pci_mapped_cfg) {
		dev_err(&pdev->dev, "failed to remap resources\n");
		return -ENOMEM;
	}

	ltq_pci_startup(pdev);

	pci_load_of_ranges(&pci_controller, pdev->dev.of_node);
	register_pci_controller(&pci_controller);
	return 0;
}
void __init find_and_init_phbs(void)
{
	struct device_node *node;
	struct pci_controller *phb;
	struct device_node *root = of_find_node_by_path("/");

	for_each_child_of_node(root, node) {
		if (node->type == NULL || (strcmp(node->type, "pci") != 0 &&
					   strcmp(node->type, "pciex") != 0))
			continue;

		phb = pcibios_alloc_controller(node);
		if (!phb)
			continue;
		rtas_setup_phb(phb);
		pci_process_bridge_OF_ranges(phb, node, 0);
		isa_bridge_find_early(phb);
	}

	of_node_put(root);
	pci_devs_phb_init();

	/* Create EEH devices for all PHBs */
	eeh_dev_phb_init();

	/*
	 * PCI_PROBE_ONLY and PCI_REASSIGN_ALL_BUS can be set via properties
	 * in chosen.
	 */
	if (of_chosen) {
		const int *prop;

		prop = of_get_property(of_chosen,
				"linux,pci-probe-only", NULL);
		if (prop) {
			if (*prop)
				pci_add_flags(PCI_PROBE_ONLY);
			else
				pci_clear_flags(PCI_PROBE_ONLY);
		}

#ifdef CONFIG_PPC32 /* Will be made generic soon */
		prop = of_get_property(of_chosen,
				"linux,pci-assign-all-buses", NULL);
		if (prop && *prop)
			pci_add_flags(PCI_REASSIGN_ALL_BUS);
#endif /* CONFIG_PPC32 */
	}
}
Exemplo n.º 3
0
static int ltq_pci_probe(struct platform_device *pdev)
{
	struct resource *res_cfg, *res_bridge;

	pci_clear_flags(PCI_PROBE_ONLY);

	res_bridge = platform_get_resource(pdev, IORESOURCE_MEM, 1);
	ltq_pci_membase = devm_ioremap_resource(&pdev->dev, res_bridge);
	if (IS_ERR(ltq_pci_membase))
		return PTR_ERR(ltq_pci_membase);

	res_cfg = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	ltq_pci_mapped_cfg = devm_ioremap_resource(&pdev->dev, res_cfg);
	if (IS_ERR(ltq_pci_mapped_cfg))
		return PTR_ERR(ltq_pci_mapped_cfg);

	ltq_pci_startup(pdev);

	pci_load_of_ranges(&pci_controller, pdev->dev.of_node);
	register_pci_controller(&pci_controller);
	return 0;
}