[U-Boot] [PATCH] serial: s5p: set automatically clears after resetting Rx FIFO

[Lukasz Majewski <l.majewski@samsung.com>]

Hi Inha,

> 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.

Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>

> 
> Signed-off-by: Inha Song <ideal.song@samsung.com>
> Signed-off-by: Jaehoon Chung <jh80.chung@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 89f5d68..98c62b4 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);



-- 
Best regards,

Lukasz Majewski

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