diff --git a/arch/mips/sgi-ip32/ip32-platform.c b/arch/mips/sgi-ip32/ip32-platform.c
index ba3697ee7ff6..7309e48d163d 100644
--- a/arch/mips/sgi-ip32/ip32-platform.c
+++ b/arch/mips/sgi-ip32/ip32-platform.c
@@ -41,8 +41,8 @@ static struct platform_device uart8250_device = {
 
 static int __init uart8250_init(void)
 {
-	uart8250_data[0].iobase = (unsigned long) &mace->isa.serial1;
-	uart8250_data[1].iobase = (unsigned long) &mace->isa.serial1;
+	uart8250_data[0].membase = (void __iomem *) &mace->isa.serial1;
+	uart8250_data[1].membase = (void __iomem *) &mace->isa.serial1;
 
 	return platform_device_register(&uart8250_device);
 }