From: Joshua Housh <joshua.housh@calxeda.com>
Date: Sun, 2 Dec 2012 17:09:26 +0000 (+0000)
Subject: serial_pl011: Set RTS during initialization
X-Git-Tag: v2013.01-rc2~79
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=10501df05e2d2eef501c92483c134d5f7c9da150;p=u-boot

serial_pl011: Set RTS during initialization

If the pl011 is connected to another device which has hardware
flow-control on, characters are never received by the pl011.
Asserting RTS when flow-control is off will have no effect.

This is in line with how Linux behaves.

Signed-off-by: Joshua Housh <joshua.housh@calxeda.com>
Tested-by: Marek Vasut <marex@denx.de>
---

diff --git a/drivers/serial/serial_pl01x.c b/drivers/serial/serial_pl01x.c
index b331be794b..dfdba9f64e 100644
--- a/drivers/serial/serial_pl01x.c
+++ b/drivers/serial/serial_pl01x.c
@@ -163,8 +163,8 @@ static int pl01x_serial_init(void)
 	}
 #endif
 	/* Finally, enable the UART */
-	writel(UART_PL011_CR_UARTEN | UART_PL011_CR_TXE | UART_PL011_CR_RXE,
-	       &regs->pl011_cr);
+	writel(UART_PL011_CR_UARTEN | UART_PL011_CR_TXE | UART_PL011_CR_RXE |
+	       UART_PL011_CR_RTS, &regs->pl011_cr);
 
 	return 0;
 }