diff --git a/include/asm-ia64/pci.h b/include/asm-ia64/pci.h
index 556f53f..5160233 100644
--- a/include/asm-ia64/pci.h
+++ b/include/asm-ia64/pci.h
@@ -167,4 +167,10 @@
 
 #define pcibios_scan_all_fns(a, b)	0
 
+#define HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
+static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
+{
+	return channel ? 15 : 14;
+}
+
 #endif /* _ASM_IA64_PCI_H */