[U-Boot] [PATCH 2/5] mmc: sh_sdhi: Set SD_INFOx interrupt mask before command starting

[Jaehoon Chung]

On 05/13/2017 10:51 PM, Marek Vasut wrote:
> From: Kouei Abe <kouei.abe.cp at renesas.com>
> 
> When setting interrupt mask after command starting, an unintended
> interrupt status sometimes occurs.
> 
> Signed-off-by: Kouei Abe <kouei.abe.cp at renesas.com>
> Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx at renesas.com>
> Cc: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx at renesas.com>
> Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
> Cc: Jaehoon Chung <jh80.chung at samsung.com>

Reviewed-by: Jaehoon Chung <jh80.chung at samsung.com>

> ---
>  drivers/mmc/sh_sdhi.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mmc/sh_sdhi.c b/drivers/mmc/sh_sdhi.c
> index 25224e2e1d..7f0b4c2603 100644
> --- a/drivers/mmc/sh_sdhi.c
> +++ b/drivers/mmc/sh_sdhi.c
> @@ -546,8 +546,6 @@ static int sh_sdhi_start_cmd(struct sh_sdhi_host *host,
>  			break;
>  	}
>  
> -	sh_sdhi_writew(host, SDHI_CMD, (unsigned short)(opc & CMD_MASK));
> -
>  	host->wait_int = 0;
>  	sh_sdhi_writew(host, SDHI_INFO1_MASK,
>  		       ~INFO1M_RESP_END & sh_sdhi_readw(host, SDHI_INFO1_MASK));
> @@ -557,6 +555,8 @@ static int sh_sdhi_start_cmd(struct sh_sdhi_host *host,
>  		       INFO2M_RESP_TIMEOUT | INFO2M_ILA) &
>  		       sh_sdhi_readw(host, SDHI_INFO2_MASK));
>  
> +	sh_sdhi_writew(host, SDHI_CMD, (unsigned short)(opc & CMD_MASK));
> +
>  	time = sh_sdhi_wait_interrupt_flag(host);
>  	if (!time)
>  		return sh_sdhi_error_manage(host);
>