diff --git a/arch/arm/plat-mxc/devices/platform-pata_imx.c b/arch/arm/plat-mxc/devices/platform-pata_imx.c
index de33048aad6a28927c87a9d16b7fe8a77de16c7d..70e2f2a4471440bc200a63135db831775722ef39 100644
--- a/arch/arm/plat-mxc/devices/platform-pata_imx.c
+++ b/arch/arm/plat-mxc/devices/platform-pata_imx.c
@@ -44,7 +44,7 @@ struct platform_device *__init imx_add_pata_imx(
 	struct resource res[] = {
 		{
 			.start = data->iobase,
-			.end = data->iobase + data->iobase - 1,
+			.end = data->iobase + data->iosize - 1,
 			.flags = IORESOURCE_MEM,
 		},
 		{