| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/types.h> |
| #include <linux/pci.h> |
| |
| /* |
| * IRQ functions |
| */ |
| |
| int __init pcibios_map_platform_irq(u8 slot, u8 pin, struct pci_dev *dev) |
| { |
| int irq; |
| |
| if (dev->bus->number == 0) { |
| switch (slot) { |
| case 4: return 5; /* eth0 */ |
| case 8: return 5; /* eth1 */ |
| case 6: return 2; /* PCI bridge */ |
| default: |
| printk("PCI: Bad IRQ mapping request for slot %d\n", slot); |
| return 2; |
| } |
| } else { |
| switch (pin) { |
| case 0: irq = 2; break; |
| case 1: irq = 2; break; |
| case 2: irq = 2; break; |
| case 3: irq = 2; break; |
| case 4: irq = 2; break; |
| default: irq = -1; break; |
| } |
| } |
| return irq; |
| } |
| |
| static u8 __init sh03_no_swizzle(struct pci_dev *dev, u8 *pin) |
| { |
| /* no swizzling */ |
| return PCI_SLOT(dev->devfn); |
| } |
| |
| static int sh03_pci_lookup_irq(struct pci_dev *dev, u8 slot, u8 pin) |
| { |
| int irq = -1; |
| |
| /* now lookup the actual IRQ on a platform specific basis (pci-'platform'.c) */ |
| irq = pcibios_map_platform_irq(slot, pin, dev); |
| if( irq < 0 ) { |
| pr_debug("PCI: Error mapping IRQ on device %s\n", pci_name(dev)); |
| return irq; |
| } |
| |
| pr_debug("Setting IRQ for slot %s to %d\n", pci_name(dev), irq); |
| |
| return irq; |
| } |
| |
| void __init pcibios_fixup_irqs(void) |
| { |
| pci_fixup_irqs(sh03_no_swizzle, sh03_pci_lookup_irq); |
| } |