target/linux/ramips/patches-3.8/0116-serial-of-allow-au1x00-and-rt288x-to-load-from-OF.patch

   1 From 6ffb42870411ca082e8e46d96d72bc5d8881ce8d Mon Sep 17 00:00:00 2001
   2 From: John Crispin <blogic@openwrt.org>
   3 Date: Tue, 22 Jan 2013 16:01:07 +0100
   4 Subject: [PATCH 116/121] serial: of: allow au1x00 and rt288x to load from OF
   5
   6 In order to make serial_8250 loadable via OF on Au1x00 and Ralink WiSoC we need
   7 to default the iotype to UPIO_AU.
   8
   9 Signed-off-by: John Crispin <blogic@openwrt.org>
  10 ---
  11  drivers/tty/serial/of_serial.c |    5 ++++-
  12  1 file changed, 4 insertions(+), 1 deletion(-)
  13
  14 --- a/drivers/tty/serial/of_serial.c
  15 +++ b/drivers/tty/serial/of_serial.c
  16 @@ -97,7 +97,10 @@ static int of_platform_serial_setup(stru
  17                 port->regshift = prop;
  18
  19         port->irq = irq_of_parse_and_map(np, 0);
  20 -       port->iotype = UPIO_MEM;
  21 +       if (of_device_is_compatible(np, "ralink,rt2880-uart"))
  22 +               port->iotype = UPIO_AU;
  23 +       else
  24 +               port->iotype = UPIO_MEM;
  25         if (of_property_read_u32(np, "reg-io-width", &prop) == 0) {
  26                 switch (prop) {
  27                 case 1: