target/linux/ramips/patches-3.14/0029-serial-of-allow-au1x00-and-rt288x-to-load-from-OF.patch

   1 From 49b47dfcef1353cd28eac8f64170e75d28ce4311 Mon Sep 17 00:00:00 2001
   2 From: John Crispin <blogic@openwrt.org>
   3 Date: Sun, 14 Jul 2013 23:18:57 +0200
   4 Subject: [PATCH 29/57] 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 diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c
  15 index 9924660..42853b4 100644
  16 --- a/drivers/tty/serial/of_serial.c
  17 +++ b/drivers/tty/serial/of_serial.c
  18 @@ -102,7 +102,10 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
  19                 port->fifosize = prop;
  20
  21         port->irq = irq_of_parse_and_map(np, 0);
  22 -       port->iotype = UPIO_MEM;
  23 +       if (of_device_is_compatible(np, "ralink,rt2880-uart"))
  24 +               port->iotype = UPIO_AU;
  25 +       else
  26 +               port->iotype = UPIO_MEM;
  27         if (of_property_read_u32(np, "reg-io-width", &prop) == 0) {
  28                 switch (prop) {
  29                 case 1:
  30 --
  31 1.7.10.4
  32