diff options
Diffstat (limited to 'arch/sh/drivers/pci/pci.c')
| -rw-r--r-- | arch/sh/drivers/pci/pci.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index 82e59bc6210e..45a15cab01df 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c @@ -33,15 +33,22 @@ static int pci_initialized; static void __devinit pcibios_scanbus(struct pci_channel *hose) { static int next_busno; + static int need_domain_info; struct pci_bus *bus; bus = pci_scan_bus(next_busno, hose->pci_ops, hose); + hose->bus = bus; + + need_domain_info = need_domain_info || hose->index; + hose->need_domain_info = need_domain_info; if (bus) { next_busno = bus->subordinate + 1; /* Don't allow 8-bit bus number overflow inside the hose - reserve some space for bridges. */ - if (next_busno > 224) + if (next_busno > 224) { next_busno = 0; + need_domain_info = 1; + } pci_bus_size_bridges(bus); pci_bus_assign_resources(bus); @@ -307,9 +314,15 @@ static void __iomem *ioport_map_pci(struct pci_dev *dev, { struct pci_channel *chan = dev->sysdata; - if (!chan->io_map_base) + if (unlikely(!chan->io_map_base)) { chan->io_map_base = generic_io_base; + if (pci_domains_supported) + panic("To avoid data corruption io_map_base MUST be " + "set with multiple PCI domains."); + } + + return (void __iomem *)(chan->io_map_base + port); } |