diff --git a/arch/sh/drivers/pci/ops-rts7751r2d.c b/arch/sh/drivers/pci/ops-rts7751r2d.c
index ec8430c8d2d1b16050bf4851a143a70e2691f0c9..b3fa3e2ef184ffd24b2a3afb604254e3c03634ee 100644
--- a/arch/sh/drivers/pci/ops-rts7751r2d.c
+++ b/arch/sh/drivers/pci/ops-rts7751r2d.c
@@ -33,7 +33,7 @@ int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
 static struct resource sh7751_io_resource = {
 	.name	= "SH7751_IO",
 	.start	= 0x4000,
-	.end	= 0x4000 + SH7751_PCI_IO_SIZE - 1,
+	.end	= SH7751_PCI_IO_SIZE - 1,
 	.flags	= IORESOURCE_IO
 };
 
@@ -68,6 +68,7 @@ static struct sh4_pci_address_map sh7751_pci_map = {
 
 int __init pcibios_init_platform(void)
 {
+	__set_io_port_base(SH7751_PCI_IO_BASE);
 	return sh7751_pcic_init(&sh7751_pci_map);
 }