| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | #include <linux/kernel.h> |
| 2 | #include <linux/init.h> |
| 3 | #include <linux/types.h> |
| 4 | #include <linux/pci.h> |
| 5 | |
| 6 | /* |
| 7 | * IRQ functions |
| 8 | */ |
| 9 | |
| 10 | int __init pcibios_map_platform_irq(u8 slot, u8 pin, struct pci_dev *dev) |
| 11 | { |
| 12 | int irq; |
| 13 | |
| 14 | if (dev->bus->number == 0) { |
| 15 | switch (slot) { |
| 16 | case 4: return 5; /* eth0 */ |
| 17 | case 8: return 5; /* eth1 */ |
| 18 | case 6: return 2; /* PCI bridge */ |
| 19 | default: |
| 20 | printk("PCI: Bad IRQ mapping request for slot %d\n", slot); |
| 21 | return 2; |
| 22 | } |
| 23 | } else { |
| 24 | switch (pin) { |
| 25 | case 0: irq = 2; break; |
| 26 | case 1: irq = 2; break; |
| 27 | case 2: irq = 2; break; |
| 28 | case 3: irq = 2; break; |
| 29 | case 4: irq = 2; break; |
| 30 | default: irq = -1; break; |
| 31 | } |
| 32 | } |
| 33 | return irq; |
| 34 | } |
| 35 | |
| 36 | static u8 __init sh03_no_swizzle(struct pci_dev *dev, u8 *pin) |
| 37 | { |
| 38 | /* no swizzling */ |
| 39 | return PCI_SLOT(dev->devfn); |
| 40 | } |
| 41 | |
| 42 | static int sh03_pci_lookup_irq(struct pci_dev *dev, u8 slot, u8 pin) |
| 43 | { |
| 44 | int irq = -1; |
| 45 | |
| 46 | /* now lookup the actual IRQ on a platform specific basis (pci-'platform'.c) */ |
| 47 | irq = pcibios_map_platform_irq(slot, pin, dev); |
| 48 | if( irq < 0 ) { |
| 49 | pr_debug("PCI: Error mapping IRQ on device %s\n", pci_name(dev)); |
| 50 | return irq; |
| 51 | } |
| 52 | |
| 53 | pr_debug("Setting IRQ for slot %s to %d\n", pci_name(dev), irq); |
| 54 | |
| 55 | return irq; |
| 56 | } |
| 57 | |
| 58 | void __init pcibios_fixup_irqs(void) |
| 59 | { |
| 60 | pci_fixup_irqs(sh03_no_swizzle, sh03_pci_lookup_irq); |
| 61 | } |