2 * Implement the default iomap interfaces
4 * (C) Copyright 2004 Linus Torvalds
5 * (C) Copyright 2006 Ralf Baechle <ralf@linux-mips.org>
6 * (C) Copyright 2007 MIPS Technologies, Inc.
7 * written by Ralf Baechle <ralf@linux-mips.org>
10 #include <linux/module.h>
13 void __iomem *__pci_ioport_map(struct pci_dev *dev,
14 unsigned long port, unsigned int nr)
16 struct pci_controller *ctrl = dev->bus->sysdata;
17 unsigned long base = ctrl->io_map_base;
19 /* This will eventually become a BUG_ON but for now be gentle */
20 if (unlikely(!ctrl->io_map_base)) {
21 struct pci_bus *bus = dev->bus;
27 ctrl->io_map_base = base = mips_io_port_base;
29 sprintf(name, "%04x:%02x", pci_domain_nr(bus), bus->number);
30 printk(KERN_WARNING "io_map_base of root PCI bus %s unset. "
31 "Trying to continue but you better\nfix this issue or "
32 "report it to linux-mips@linux-mips.org or your "
34 #ifdef CONFIG_PCI_DOMAINS
35 panic("To avoid data corruption io_map_base MUST be set with "
36 "multiple PCI domains.");
40 return (void __iomem *) (ctrl->io_map_base + port);
43 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
48 EXPORT_SYMBOL(pci_iounmap);