]>
git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - arch/mips/lib/iomap-pci.c
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/export.h>
13 #ifdef CONFIG_PCI_DRIVERS_LEGACY
15 void __iomem
*__pci_ioport_map(struct pci_dev
*dev
,
16 unsigned long port
, unsigned int nr
)
18 struct pci_controller
*ctrl
= dev
->bus
->sysdata
;
19 unsigned long base
= ctrl
->io_map_base
;
21 /* This will eventually become a BUG_ON but for now be gentle */
22 if (unlikely(!ctrl
->io_map_base
)) {
23 struct pci_bus
*bus
= dev
->bus
;
29 ctrl
->io_map_base
= base
= mips_io_port_base
;
31 sprintf(name
, "%04x:%02x", pci_domain_nr(bus
), bus
->number
);
32 printk(KERN_WARNING
"io_map_base of root PCI bus %s unset. "
33 "Trying to continue but you better\nfix this issue or "
34 "report it to linux-mips@linux-mips.org or your "
36 #ifdef CONFIG_PCI_DOMAINS
37 panic("To avoid data corruption io_map_base MUST be set with "
38 "multiple PCI domains.");
42 return (void __iomem
*) (ctrl
->io_map_base
+ port
);
45 #endif /* CONFIG_PCI_DRIVERS_LEGACY */
47 void pci_iounmap(struct pci_dev
*dev
, void __iomem
* addr
)
52 EXPORT_SYMBOL(pci_iounmap
);