From d0c7d235c09fc65dbdb278e7016a96f79c6a49cc Mon Sep 17 00:00:00 2001
From: "Robert N. M. Watson" <robert.watson@cl.cam.ac.uk>
Date: Fri, 2 May 2014 20:56:31 +0100
Subject: [PATCH] Make the Altera JTAG UART device driver slightly more
 forgiving of the foibles of a sub-par hrdware interface by increasing the
 timeout for spotting JTAG polling from one to two seconds.

---
 sys/dev/altera/jtag_uart/altera_jtag_uart_tty.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/dev/altera/jtag_uart/altera_jtag_uart_tty.c b/sys/dev/altera/jtag_uart/altera_jtag_uart_tty.c
index ad5b8a41bdc5..18fb8cd93966 100644
--- a/sys/dev/altera/jtag_uart/altera_jtag_uart_tty.c
+++ b/sys/dev/altera/jtag_uart/altera_jtag_uart_tty.c
@@ -67,7 +67,7 @@ static struct ttydevsw aju_ttydevsw = {
  * When polling for the AC bit, the number of times we have to not see it
  * before assuming JTAG has disappeared on us.  By default, one second.
  */
-#define	AJU_JTAG_MAXMISS		5
+#define	AJU_JTAG_MAXMISS		10
 
 /*
  * Polling intervals for input/output and JTAG connection events.