---

yaml
---
r: 325795
b: refs/heads/master
c: b3564c2
h: refs/heads/master
i:
  325793: 3a22c1d
  325791: 3270a82
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c7f3e7087ab0abb52bb1286010f2c104fd38ca5c
+refs/heads/master: b3564c2cf464e11f8cb4f8d9c124e5e0f5418e3f

trunk/drivers/tty/serial/amba-pl011.c

@@ -1309,10 +1309,9 @@ static void pl011_put_poll_char(struct uart_port *port,
 
 #endif /* CONFIG_CONSOLE_POLL */
 
-static int pl011_startup(struct uart_port *port)
+static int pl011_hwinit(struct uart_port *port)
 {
 	struct uart_amba_port *uap = (struct uart_amba_port *)port;
-	unsigned int cr;
 	int retval;
 
 	/* Optionaly enable pins to be muxed in and configured */
@@ -1336,6 +1335,37 @@ static int pl011_startup(struct uart_port *port)
 	writew(UART011_OEIS | UART011_BEIS | UART011_PEIS | UART011_FEIS |
 	       UART011_RTIS | UART011_RXIS, uap->port.membase + UART011_ICR);
 
+	/*
+	 * Save interrupts enable mask, and enable RX interrupts in case if
+	 * the interrupt is used for NMI entry.
+	 */
+	uap->im = readw(uap->port.membase + UART011_IMSC);
+	writew(UART011_RTIM | UART011_RXIM, uap->port.membase + UART011_IMSC);
+
+	if (uap->port.dev->platform_data) {
+		struct amba_pl011_data *plat;
+
+		plat = uap->port.dev->platform_data;
+		if (plat->init)
+			plat->init();
+	}
+	return 0;
+ out:
+	return retval;
+}
+
+static int pl011_startup(struct uart_port *port)
+{
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
+	unsigned int cr;
+	int retval;
+
+	retval = pl011_hwinit(port);
+	if (retval)
+		goto clk_dis;
+
+	writew(uap->im, uap->port.membase + UART011_IMSC);
+
 	/*
 	 * Allocate the IRQ
 	 */
@@ -1395,19 +1425,10 @@ static int pl011_startup(struct uart_port *port)
 	writew(uap->im, uap->port.membase + UART011_IMSC);
 	spin_unlock_irq(&uap->port.lock);
 
-	if (uap->port.dev->platform_data) {
-		struct amba_pl011_data *plat;
-
-		plat = uap->port.dev->platform_data;
-		if (plat->init)
-			plat->init();
-	}
-
 	return 0;
 
  clk_dis:
 	clk_disable_unprepare(uap->clk);
- out:
 	return retval;
 }
 
@@ -1701,6 +1722,7 @@ static struct uart_ops amba_pl011_pops = {
 	.config_port	= pl011_config_port,
 	.verify_port	= pl011_verify_port,
 #ifdef CONFIG_CONSOLE_POLL
+	.poll_init     = pl011_hwinit,
 	.poll_get_char = pl011_get_poll_char,
 	.poll_put_char = pl011_put_poll_char,
 #endif