X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fserial%2Famba-pl011.c;h=08adc1de4a7953072d42209d47338a04b7de38cc;hb=7cd95f56cb61f5348d062527c9d3653196f6e629;hp=72229df9dc111754a74de5b1e3fb4eb896d8768e;hpb=939ab20152390c8ccccfa6fac0830405ca91d903;p=linux-2.6

diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c
index 72229df9dc..08adc1de4a 100644
--- a/drivers/serial/amba-pl011.c
+++ b/drivers/serial/amba-pl011.c
@@ -263,15 +263,15 @@ static unsigned int pl01x_get_mctrl(struct uart_port *port)
 	unsigned int result = 0;
 	unsigned int status = readw(uap->port.membase + UART01x_FR);
 
-#define BIT(uartbit, tiocmbit)		\
+#define TIOCMBIT(uartbit, tiocmbit)	\
 	if (status & uartbit)		\
 		result |= tiocmbit
 
-	BIT(UART01x_FR_DCD, TIOCM_CAR);
-	BIT(UART01x_FR_DSR, TIOCM_DSR);
-	BIT(UART01x_FR_CTS, TIOCM_CTS);
-	BIT(UART011_FR_RI, TIOCM_RNG);
-#undef BIT
+	TIOCMBIT(UART01x_FR_DCD, TIOCM_CAR);
+	TIOCMBIT(UART01x_FR_DSR, TIOCM_DSR);
+	TIOCMBIT(UART01x_FR_CTS, TIOCM_CTS);
+	TIOCMBIT(UART011_FR_RI, TIOCM_RNG);
+#undef TIOCMBIT
 	return result;
 }
 
@@ -282,18 +282,18 @@ static void pl011_set_mctrl(struct uart_port *port, unsigned int mctrl)
 
 	cr = readw(uap->port.membase + UART011_CR);
 
-#define	BIT(tiocmbit, uartbit)		\
+#define	TIOCMBIT(tiocmbit, uartbit)		\
 	if (mctrl & tiocmbit)		\
 		cr |= uartbit;		\
 	else				\
 		cr &= ~uartbit
 
-	BIT(TIOCM_RTS, UART011_CR_RTS);
-	BIT(TIOCM_DTR, UART011_CR_DTR);
-	BIT(TIOCM_OUT1, UART011_CR_OUT1);
-	BIT(TIOCM_OUT2, UART011_CR_OUT2);
-	BIT(TIOCM_LOOP, UART011_CR_LBE);
-#undef BIT
+	TIOCMBIT(TIOCM_RTS, UART011_CR_RTS);
+	TIOCMBIT(TIOCM_DTR, UART011_CR_DTR);
+	TIOCMBIT(TIOCM_OUT1, UART011_CR_OUT1);
+	TIOCMBIT(TIOCM_OUT2, UART011_CR_OUT2);
+	TIOCMBIT(TIOCM_LOOP, UART011_CR_LBE);
+#undef TIOCMBIT
 
 	writew(cr, uap->port.membase + UART011_CR);
 }
@@ -314,6 +314,32 @@ static void pl011_break_ctl(struct uart_port *port, int break_state)
 	spin_unlock_irqrestore(&uap->port.lock, flags);
 }
 
+#ifdef CONFIG_CONSOLE_POLL
+static int pl010_get_poll_char(struct uart_port *port)
+{
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
+	unsigned int status;
+
+	do {
+		status = readw(uap->port.membase + UART01x_FR);
+	} while (status & UART01x_FR_RXFE);
+
+	return readw(uap->port.membase + UART01x_DR);
+}
+
+static void pl010_put_poll_char(struct uart_port *port,
+			 unsigned char ch)
+{
+	struct uart_amba_port *uap = (struct uart_amba_port *)port;
+
+	while (readw(uap->port.membase + UART01x_FR) & UART01x_FR_TXFF)
+		barrier();
+
+	writew(ch, uap->port.membase + UART01x_DR);
+}
+
+#endif /* CONFIG_CONSOLE_POLL */
+
 static int pl011_startup(struct uart_port *port)
 {
 	struct uart_amba_port *uap = (struct uart_amba_port *)port;
@@ -572,6 +598,10 @@ static struct uart_ops amba_pl011_pops = {
 	.request_port	= pl010_request_port,
 	.config_port	= pl010_config_port,
 	.verify_port	= pl010_verify_port,
+#ifdef CONFIG_CONSOLE_POLL
+	.poll_get_char = pl010_get_poll_char,
+	.poll_put_char = pl010_put_poll_char,
+#endif
 };
 
 static struct uart_amba_port *amba_ports[UART_NR];