diff --git a/arch/parisc/include/asm/ropes.h b/arch/parisc/include/asm/ropes.h
index 8e51c775c80a..fd96706c7234 100644
--- a/arch/parisc/include/asm/ropes.h
+++ b/arch/parisc/include/asm/ropes.h
@@ -252,7 +252,7 @@ static inline int agp_mode_mercury(void __iomem *hpa) {
 ** fixup_irq is to initialize PCI IRQ line support and
 ** virtualize pcidev->irq value. To be called by pci_fixup_bus().
 */
-extern void *iosapic_register(unsigned long hpa);
+extern void *iosapic_register(unsigned long hpa, void __iomem *vaddr);
 extern int iosapic_fixup_irq(void *obj, struct pci_dev *pcidev);
 
 #define LBA_FUNC_ID	0x0000	/* function id */
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index bcc1dae00780..27478e9f4e84 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -890,7 +890,7 @@ iosapic_rd_version(struct iosapic_info *isi)
 **	o allocate and initialize isi_vector[]
 **	o allocate irq region
 */
-void *iosapic_register(unsigned long hpa)
+void *iosapic_register(unsigned long hpa, void __iomem *vaddr)
 {
 	struct iosapic_info *isi = NULL;
 	struct irt_entry *irte = irt_cell;
@@ -919,7 +919,7 @@ void *iosapic_register(unsigned long hpa)
 		return NULL;
 	}
 
-	isi->addr = ioremap(hpa, 4096);
+	isi->addr = vaddr;
 	isi->isi_hpa = hpa;
 	isi->isi_version = iosapic_rd_version(isi);
 	isi->isi_num_vectors = IOSAPIC_IRDT_MAX_ENTRY(isi->isi_version) + 1;
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 702bfd64e6e1..9e22b117fb3a 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1535,7 +1535,8 @@ lba_driver_probe(struct parisc_device *dev)
 	}
 
 	/* Tell I/O SAPIC driver we have a IRQ handler/region. */
-	tmp_obj = iosapic_register(dev->hpa.start + LBA_IOSAPIC_BASE);
+	tmp_obj = iosapic_register(dev->hpa.start + LBA_IOSAPIC_BASE,
+						addr + LBA_IOSAPIC_BASE);
 
 	/* NOTE: PCI devices (e.g. 103c:1005 graphics card) which don't
 	**	have an IRT entry will get NULL back from iosapic code.