arch/mips/pci/common.c

   1 void __init pcibios_fixup_bus(struct pci_bus *b)
   2 {
   3         Dprintk("pcibios_fixup_bus()\n");
   4 }
   5
   6 static int pcibios_enable_resources(struct pci_dev *dev, int mask)
   7 {
   8         u16 cmd, old_cmd;
   9         int idx;
  10         struct resource *r;
  11
  12         pci_read_config_word(dev, PCI_COMMAND, &cmd);
  13         old_cmd = cmd;
  14         for (idx = 0; idx < 6; idx++) {
  15                 /* Only set up the requested stuff */
  16                 if (!(mask & (1 << idx)))
  17                         continue;
  18
  19                 r = &dev->resource[idx];
  20                 if (!r->start && r->end) {
  21                         printk(KERN_ERR
  22                                "PCI: Device %s not available because of resource collisions\n",
  23                                dev->slot_name);
  24                         return -EINVAL;
  25                 }
  26                 if (r->flags & IORESOURCE_IO)
  27                         cmd |= PCI_COMMAND_IO;
  28                 if (r->flags & IORESOURCE_MEM)
  29                         cmd |= PCI_COMMAND_MEMORY;
  30         }
  31         if (dev->resource[PCI_ROM_RESOURCE].start)
  32                 cmd |= PCI_COMMAND_MEMORY;
  33         if (cmd != old_cmd) {
  34                 printk("PCI: Enabling device %s (%04x -> %04x)\n",
  35                        dev->slot_name, old_cmd, cmd);
  36                 pci_write_config_word(dev, PCI_COMMAND, cmd);
  37         }
  38         return 0;
  39 }
  40
  41 int pcibios_enable_device(struct pci_dev *dev, int mask)
  42 {
  43         int err;
  44
  45         if ((err = pcibios_enable_resources(dev, mask)) < 0)
  46                 return err;
  47
  48         return 0;
  49 }
  50
  51 void __init pcibios_align_resource(void *data, struct resource *res,
  52                                    unsigned long size, unsigned long align)
  53 {
  54         panic("Uhhoh called pcibios_align_resource");
  55 }
  56
  57 unsigned __init int pcibios_assign_all_busses(void)
  58 {
  59         return 1;
  60 }
  61
  62 char *pcibios_setup(char *str)
  63 {
  64         return str;
  65 }
  66
  67 struct pci_fixup pcibios_fixups[] = {
  68         {0}
  69 };