mmc: sh_sdhi: Set SD_INFOx interrupt mask before command starting

When setting interrupt mask after command starting, an unintended
interrupt status sometimes occurs.

Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com>
Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Cc: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>

diff --git a/drivers/mmc/sh_sdhi.c b/drivers/mmc/sh_sdhi.c
index 25224e2..7f0b4c2 100644 (file)
--- 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);