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c0dd394ca5
This list used was by only two platforms with all other platforms defining an own list of valid bus id's to pass to of_platform_bus_probe. This patch: i) copies the default list to the two platforms that depended on it (powerpc) ii) remove the usage of of_default_bus_ids in of_platform_bus_probe iii) removes the definition of the list from all architectures that defined it Passing a NULL 'matches' parameter to of_platform_bus_probe is still valid; the function returns no error in that case as the NULL value is equivalent to an empty list. Signed-off-by: Jonas Bonn <jonas@southpole.se> [grant.likely@secretlab.ca: added __initdata annotations, warn on and return error on missing match table, and fix whitespace errors] Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
124 lines
2.9 KiB
C
124 lines
2.9 KiB
C
/*
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* Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
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* <benh@kernel.crashing.org>
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* and Arnd Bergmann, IBM Corp.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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*/
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#undef DEBUG
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#include <linux/string.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/mod_devicetable.h>
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#include <linux/pci.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/of_platform.h>
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#include <asm/errno.h>
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#include <asm/topology.h>
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#include <asm/pci-bridge.h>
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#include <asm/ppc-pci.h>
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#include <asm/atomic.h>
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#ifdef CONFIG_PPC_OF_PLATFORM_PCI
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/* The probing of PCI controllers from of_platform is currently
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* 64 bits only, mostly due to gratuitous differences between
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* the 32 and 64 bits PCI code on PowerPC and the 32 bits one
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* lacking some bits needed here.
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*/
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static int __devinit of_pci_phb_probe(struct platform_device *dev,
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const struct of_device_id *match)
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{
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struct pci_controller *phb;
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/* Check if we can do that ... */
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if (ppc_md.pci_setup_phb == NULL)
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return -ENODEV;
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pr_info("Setting up PCI bus %s\n", dev->dev.of_node->full_name);
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/* Alloc and setup PHB data structure */
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phb = pcibios_alloc_controller(dev->dev.of_node);
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if (!phb)
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return -ENODEV;
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/* Setup parent in sysfs */
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phb->parent = &dev->dev;
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/* Setup the PHB using arch provided callback */
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if (ppc_md.pci_setup_phb(phb)) {
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pcibios_free_controller(phb);
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return -ENODEV;
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}
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/* Process "ranges" property */
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pci_process_bridge_OF_ranges(phb, dev->dev.of_node, 0);
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/* Init pci_dn data structures */
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pci_devs_phb_init_dynamic(phb);
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/* Register devices with EEH */
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#ifdef CONFIG_EEH
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if (dev->dev.of_node->child)
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eeh_add_device_tree_early(dev->dev.of_node);
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#endif /* CONFIG_EEH */
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/* Scan the bus */
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pcibios_scan_phb(phb, dev->dev.of_node);
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if (phb->bus == NULL)
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return -ENXIO;
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/* Claim resources. This might need some rework as well depending
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* wether we are doing probe-only or not, like assigning unassigned
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* resources etc...
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*/
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pcibios_claim_one_bus(phb->bus);
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/* Finish EEH setup */
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#ifdef CONFIG_EEH
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eeh_add_device_tree_late(phb->bus);
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#endif
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/* Add probed PCI devices to the device model */
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pci_bus_add_devices(phb->bus);
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return 0;
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}
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static struct of_device_id of_pci_phb_ids[] = {
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{ .type = "pci", },
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{ .type = "pcix", },
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{ .type = "pcie", },
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{ .type = "pciex", },
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{ .type = "ht", },
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{}
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};
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static struct of_platform_driver of_pci_phb_driver = {
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.probe = of_pci_phb_probe,
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.driver = {
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.name = "of-pci",
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.owner = THIS_MODULE,
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.of_match_table = of_pci_phb_ids,
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},
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};
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static __init int of_pci_phb_init(void)
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{
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return of_register_platform_driver(&of_pci_phb_driver);
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}
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device_initcall(of_pci_phb_init);
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#endif /* CONFIG_PPC_OF_PLATFORM_PCI */
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