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serial: s5p: set automatically clears after resetting Rx FIFO

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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>
This commit is contained in:
Inha Song 2014-02-04 14:57:25 +09:00 committed by Minkyu Kang
parent 0ab9a03ca4
commit e6252fab2d
1 changed files with 2 additions and 2 deletions
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4
drivers/serial/serial_s5p.c
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@ -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);