From e6252fab2d6989025bfb97e33abca03b5cb10ff1 Mon Sep 17 00:00:00 2001
From: Inha Song <ideal.song@samsung.com>
Date: Tue, 4 Feb 2014 14:57:25 +0900
Subject: [PATCH] serial: s5p: set automatically clears after resetting Rx FIFO
This patch fix the u-boot shell problem on TRATS2 board.
- If hold the key while booting is in progress,
white spaces are written in u-boot shell.
Set Automatically clears after resetting Rx FIFO.
Signed-off-by: Inha Song <ideal.song@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
---
drivers/serial/serial_s5p.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/serial/serial_s5p.c b/drivers/serial/serial_s5p.c
index 89f5d68dd0..98c62b4c14 100644
--- a/drivers/serial/serial_s5p.c
+++ b/drivers/serial/serial_s5p.c
@@ -100,8 +100,8 @@ static int serial_init_dev(const int dev_index)
{
struct s5p_uart *const uart = s5p_get_base_uart(dev_index);
- /* enable FIFOs */
- writel(0x1, &uart->ufcon);
+ /* enable FIFOs, auto clear Rx FIFO */
+ writel(0x3, &uart->ufcon);
writel(0, &uart->umcon);
/* 8N1 */
writel(0x3, &uart->ulcon);
--
2.39.5