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authorBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>2017-03-22 19:21:00 +0100
committerSekhar Nori <nsekhar@ti.com>2017-03-30 12:43:04 +0200
commit396ff64d44dbcbd4e6c06c005c4e931bd4b35e4d (patch)
tree0807b36d8965094b70f17ba6db5cc70daa84b744 /drivers/ata
parentpata_bk3710: disable IORDY Timer on chipset initialization (diff)
downloadlinux-396ff64d44dbcbd4e6c06c005c4e931bd4b35e4d.tar.xz
linux-396ff64d44dbcbd4e6c06c005c4e931bd4b35e4d.zip
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>
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/pata_bk3710.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ata/pata_bk3710.c b/drivers/ata/pata_bk3710.c
index f22e4bf7a7f6..6c3bd5fae3e4 100644
--- 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);