1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/serial/of_serial.c b/drivers/serial/of_serial.c
index e7928fee833a..7ffdaeaf0545 100644
--- a/drivers/serial/of_serial.c
+++ b/drivers/serial/of_serial.c
@@ -48,7 +48,8 @@ static int __devinit of_platform_serial_setup(struct of_device *ofdev,
         port->iotype = UPIO_MEM;
         port->type = type;
         port->uartclk = *clk;
-        port->flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_IOREMAP;
+        port->flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_IOREMAP
+                | UPF_FIXED_PORT;
         port->dev = &ofdev->dev;
         port->custom_divisor = *clk / (16 * (*spd));