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From: Marius Strobl <marius@FreeBSD.org>
Date: Mon, 15 Dec 2008 21:42:39 +0000 (UTC)
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Subject: svn commit: r186140 - head/sys/dev/isp
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Author: marius
Date: Mon Dec 15 21:42:38 2008
New Revision: 186140
URL: http://svn.freebsd.org/changeset/base/186140

Log:
  Don't try reading the SXP_PINS_DIFF on the 10160 and 12160 SCSI
  controllers. Reading this register, for which there are indications
  that it doesn't really exist, returns 0 on at least some 12160
  and doing so on Sun Fire V880 causes a data access error exception.
  
  Reported and tested by:	Beat Gaetzi
  Approved by:		mjacob
  Obtained from:		OpenBSD (modulo setting isp_lvdmode)

Modified:
  head/sys/dev/isp/isp.c

Modified: head/sys/dev/isp/isp.c
==============================================================================
--- head/sys/dev/isp/isp.c	Mon Dec 15 21:39:31 2008	(r186139)
+++ head/sys/dev/isp/isp.c	Mon Dec 15 21:42:38 2008	(r186140)
@@ -335,6 +335,23 @@ isp_reset(ispsoftc_t *isp)
 		/*
 		 * XXX: Should probably do some bus sensing.
 		 */
+	} else if (IS_ULTRA3(isp)) {
+		sdparam *sdp = isp->isp_param;
+
+		isp->isp_clock = 100;
+
+		if (IS_10160(isp))
+			btype = "10160";
+		else if (IS_12160(isp))
+			btype = "12160";
+		else
+			btype = "<UNKLVD>";
+		sdp->isp_lvdmode = 1;
+
+		if (IS_DUALBUS(isp)) {
+			sdp++;
+			sdp->isp_lvdmode = 1;
+		}
 	} else if (IS_ULTRA2(isp)) {
 		static const char m[] = "bus %d is in %s Mode";
 		uint16_t l;
@@ -346,10 +363,6 @@ isp_reset(ispsoftc_t *isp)
 			btype = "1280";
 		else if (IS_1080(isp))
 			btype = "1080";
-		else if (IS_10160(isp))
-			btype = "10160";
-		else if (IS_12160(isp))
-			btype = "12160";
 		else
 			btype = "<UNKLVD>";