5 files changed, 16 insertions, 2 deletions
diff --git a/drivers/serial/altera_jtag_uart.c b/drivers/serial/altera_jtag_uart.c
index fb28aa9..2980e4d 100644
--- a/drivers/serial/altera_jtag_uart.c
+++ b/drivers/serial/altera_jtag_uart.c
@@ -38,8 +38,16 @@ int serial_init( void ) { return(0);}
 
 void serial_putc (char c)
 {
-	while (NIOS_JTAG_WSPACE ( readl (&jtag->control)) == 0)
-		WATCHDOG_RESET ();
+	while (1) {
+		unsigned st = readl(&jtag->control);
+		if (NIOS_JTAG_WSPACE(st))
+			break;
+#ifdef CONFIG_ALTERA_JTAG_UART_BYPASS
+		if (!(st & NIOS_JTAG_AC)) /* no connection */
+			return;
+#endif
+		WATCHDOG_RESET();
+	}
 	writel ((unsigned char)c, &jtag->data);
 }
 
diff --git a/drivers/serial/serial.c b/drivers/serial/serial.c
index dd5f332..8eda95c 100644
--- a/drivers/serial/serial.c
+++ b/drivers/serial/serial.c
@@ -115,6 +115,7 @@ static NS16550_t serial_ports[4] = {
 	name,\
 	bus,\
 	eserial##port##_init,\
+	NULL,\
 	eserial##port##_setbrg,\
 	eserial##port##_getc,\
 	eserial##port##_tstc,\
diff --git a/drivers/serial/serial_pxa.c b/drivers/serial/serial_pxa.c
index 9ba457e..b74e439 100644
--- a/drivers/serial/serial_pxa.c
+++ b/drivers/serial/serial_pxa.c
@@ -266,6 +266,7 @@ struct serial_device serial_ffuart_device =
 	"serial_ffuart",
 	"PXA",
 	ffuart_init,
+	NULL,
 	ffuart_setbrg,
 	ffuart_getc,
 	ffuart_tstc,
@@ -310,6 +311,7 @@ struct serial_device serial_btuart_device =
 	"serial_btuart",
 	"PXA",
 	btuart_init,
+	NULL,
 	btuart_setbrg,
 	btuart_getc,
 	btuart_tstc,
@@ -354,6 +356,7 @@ struct serial_device serial_stuart_device =
 	"serial_stuart",
 	"PXA",
 	stuart_init,
+	NULL,
 	stuart_setbrg,
 	stuart_getc,
 	stuart_tstc,
diff --git a/drivers/serial/serial_s3c24x0.c b/drivers/serial/serial_s3c24x0.c
index 5dd4dd8..8a3e302 100644
--- a/drivers/serial/serial_s3c24x0.c
+++ b/drivers/serial/serial_s3c24x0.c
@@ -78,6 +78,7 @@ DECLARE_GLOBAL_DATA_PTR;
 	name, \
 	bus, \
 	s3serial##port##_init, \
+	NULL,\
 	s3serial##port##_setbrg, \
 	s3serial##port##_getc, \
 	s3serial##port##_tstc, \
diff --git a/drivers/serial/serial_s5pc1xx.c b/drivers/serial/serial_s5pc1xx.c
index 73669a9..8da0c86 100644
--- a/drivers/serial/serial_s5pc1xx.c
+++ b/drivers/serial/serial_s5pc1xx.c
@@ -185,6 +185,7 @@ void s5p_serial##port##_puts(const char *s) { serial_puts_dev(s, port); }
 	name, \
 	bus, \
 	s5p_serial##port##_init, \
+	NULL, \
 	s5p_serial##port##_setbrg, \
 	s5p_serial##port##_getc, \
 	s5p_serial##port##_tstc, \