39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
From 2d68fa06d5cfcf38ce9bd551b478dab408141cce Mon Sep 17 00:00:00 2001
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From: Mike Westerhof <mwester@dls.net>
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Date: Fri, 8 Aug 2008 13:25:02 +0100
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Subject: [PATCH] gta01-uart-fifo-trigger-sooner.patch
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Set the UART FIFO to trigger earlier on the GTA01 device to minimize
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UART overruns from the GSM.
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Signed-off-by: Mike Westerhof <mwester@dls.net>
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---
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arch/arm/mach-s3c2410/mach-gta01.c | 4 +++-
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1 files changed, 3 insertions(+), 1 deletions(-)
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diff --git a/arch/arm/mach-s3c2410/mach-gta01.c b/arch/arm/mach-s3c2410/mach-gta01.c
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index 9e42df0..4927cd4 100644
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--- a/arch/arm/mach-s3c2410/mach-gta01.c
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+++ b/arch/arm/mach-s3c2410/mach-gta01.c
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@@ -87,6 +87,8 @@ static struct map_desc gta01_iodesc[] __initdata = {
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#define UCON S3C2410_UCON_DEFAULT
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#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
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#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
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+/* UFCON for the gta01 sets the FIFO trigger level at 4, not 8 */
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+#define UFCON_GTA01_PORT0 S3C2410_UFCON_FIFOMODE
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static struct s3c2410_uartcfg gta01_uartcfgs[] = {
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[0] = {
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@@ -94,7 +96,7 @@ static struct s3c2410_uartcfg gta01_uartcfgs[] = {
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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- .ufcon = UFCON,
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+ .ufcon = UFCON_GTA01_PORT0,
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},
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[1] = {
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.hwport = 1,
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--
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1.5.6.5
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