pata_bk3710: clear status bits of BMISP on chipset initialization

Clear IORDYINT, INTRSTAT and DMAERROR bits of BMISP register
(value '1' needs to be written to the bit to clear it).

Suggested-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

diff --git a/drivers/ata/pata_bk3710.c b/drivers/ata/pata_bk3710.c
index f22e4bf7a7f6b4519d010c34ff9303c4c56894a7..6c3bd5fae3e40d3afb93167cbf3b78780f988a7a 100644 (file)
--- a/drivers/ata/pata_bk3710.c
+++ b/drivers/ata/pata_bk3710.c
@@ -276,7 +276,7 @@ static void pata_bk3710_chipinit(void __iomem *base)
         * (ATA_BMISP_INTRSTAT  , CLEAR)        |
         * (ATA_BMISP_DMAERROR  , CLEAR)
         */
-       iowrite16(0, base + BK3710_BMISP);
+       iowrite16(0xE, base + BK3710_BMISP);
 
        pata_bk3710_setpiomode(base, NULL, 0, 600, 0);
        pata_bk3710_setpiomode(base, NULL, 1, 600, 0);