ncr5380: Keep BSY asserted when entering SELECTION phase

NCR5380.c is not compliant with the SCSI-2 standard (at least, not with
the draft revision 10L that I have to refer to). The selection algorithm
in atari_NCR5380.c is correct, so use that.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index 4ef4fc7..d51aad3 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -1236,7 +1236,13 @@
 		dprintk(NDEBUG_ARBITRATION, "scsi%d : lost arbitration, deasserting MR_ARBITRATE\n", instance->host_no);
 		return -1;
 	}
-	NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_SEL);
+
+	/* After/during arbitration, BSY should be asserted.
+	 * IBM DPES-31080 Version S31Q works now
+	 * Tnx to Thomas_Roesch@m2.maus.de for finding this! (Roman)
+	 */
+	NCR5380_write(INITIATOR_COMMAND_REG,
+		      ICR_BASE | ICR_ASSERT_SEL | ICR_ASSERT_BSY);
 
 	if (!(hostdata->flags & FLAG_DTC3181E) &&
 	    /* RvC: DTC3181E has some trouble with this