From b94b10aaa3532482fdf0e4b4721af4ee61c28281 Mon Sep 17 00:00:00 2001
From: Thor Thayer <tthayer@opensource.altera.com>
Date: Thu, 22 Sep 2016 14:56:17 -0500
Subject: [PATCH] nios2: dts: 10m50: Add tx-threshold parameter

The tx-threshold parameter sets the TX FIFO low water threshold
trigger for the Altera 16550-FIFO32 soft IP.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/nios2/boot/dts/10m50_devboard.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/nios2/boot/dts/10m50_devboard.dts b/arch/nios2/boot/dts/10m50_devboard.dts
index 3e411c644824..f362b2224ee7 100755
--- a/arch/nios2/boot/dts/10m50_devboard.dts
+++ b/arch/nios2/boot/dts/10m50_devboard.dts
@@ -83,6 +83,7 @@ a_16550_uart_0: serial@18001600 {
 			fifo-size = <32>;
 			reg-io-width = <4>;
 			reg-shift = <2>;
+			tx-threshold = <16>;
 		};
 
 		sysid: sysid@18001528 {