target/linux/s3c24xx/patches-2.6.26/1245-gta01-uart-fifo-trigger-sooner.patch.patch

   1 From e669553bac329b9033b201c46e4a8c29e8165d79 Mon Sep 17 00:00:00 2001
   2 From: Mike Westerhof <mwester@dls.net>
   3 Date: Sun, 10 Aug 2008 09:14:01 +0100
   4 Subject: [PATCH] gta01-uart-fifo-trigger-sooner.patch
   5
   6     Set the UART FIFO to trigger earlier on the GTA01 device to minimize
   7     UART overruns from the GSM.
   8
   9     Signed-off-by: Mike Westerhof <mwester@dls.net>
  10 ---
  11  arch/arm/mach-s3c2410/mach-gta01.c |    4 +++-
  12  1 files changed, 3 insertions(+), 1 deletions(-)
  13
  14 diff --git a/arch/arm/mach-s3c2410/mach-gta01.c b/arch/arm/mach-s3c2410/mach-gta01.c
  15 index 9e42df0..4927cd4 100644
  16 --- a/arch/arm/mach-s3c2410/mach-gta01.c
  17 +++ b/arch/arm/mach-s3c2410/mach-gta01.c
  18 @@ -87,6 +87,8 @@ static struct map_desc gta01_iodesc[] __initdata = {
  19  #define UCON S3C2410_UCON_DEFAULT
  20  #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  21  #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  22 +/* UFCON for the gta01 sets the FIFO trigger level at 4, not 8 */
  23 +#define UFCON_GTA01_PORT0 S3C2410_UFCON_FIFOMODE
  24
  25  static struct s3c2410_uartcfg gta01_uartcfgs[] = {
  26         [0] = {
  27 @@ -94,7 +96,7 @@ static struct s3c2410_uartcfg gta01_uartcfgs[] = {
  28                 .flags       = 0,
  29                 .ucon        = UCON,
  30                 .ulcon       = ULCON,
  31 -               .ufcon       = UFCON,
  32 +               .ufcon       = UFCON_GTA01_PORT0,
  33         },
  34         [1] = {
  35                 .hwport      = 1,
  36 --
  37 1.5.6.3
  38