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From cf52f453acdd9599a1be0fcf0e941bad62046cd4 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Tue, 22 Jan 2013 16:01:07 +0100
Subject: [PATCH 145/164] serial: of: allow au1x00 and rt288x to load from OF

In order to make serial_8250 loadable via OF on Au1x00 and Ralink WiSoC we need
to default the iotype to UPIO_AU.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 drivers/tty/serial/of_serial.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/tty/serial/of_serial.c
+++ b/drivers/tty/serial/of_serial.c
@@ -98,7 +98,10 @@ static int of_platform_serial_setup(stru
 		port->regshift = prop;
 
 	port->irq = irq_of_parse_and_map(np, 0);
-	port->iotype = UPIO_MEM;
+	if (of_device_is_compatible(np, "ralink,rt2880-uart"))
+		port->iotype = UPIO_AU;
+	else
+		port->iotype = UPIO_MEM;
 	if (of_property_read_u32(np, "reg-io-width", &prop) == 0) {
 		switch (prop) {
 		case 1: