ide-{floppy,tape,scsi}: 400ns delay is required after executing the command

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

3 files changed, 3 insertions, 0 deletions

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index b9983c4a1fac..da79248633a4 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -698,6 +698,7 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
                 /* Issue the packet command */
                 hwif->OUTBSYNC(drive, WIN_PACKETCMD,
                                hwif->io_ports.command_addr);
+                ndelay(400);
                 return (*pkt_xfer_routine) (drive);
         }
 }
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index f3f231de1835..dc88431a2359 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1058,6 +1058,7 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive,
         } else {
                 hwif->OUTBSYNC(drive, WIN_PACKETCMD,
                                hwif->io_ports.command_addr);
+                ndelay(400);
                 return idetape_transfer_pc(drive);
         }
 }
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index 8f716da5b7de..8b1c783e259b 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -576,6 +576,7 @@ static ide_startstop_t idescsi_issue_pc(ide_drive_t *drive,
                 /* Issue the packet command */
                 hwif->OUTBSYNC(drive, WIN_PACKETCMD,
                                hwif->io_ports.command_addr);
+                ndelay(400);
                 return idescsi_transfer_pc(drive);
         }
 }