[src/trunk]: src/sys/arch/mvmeppc/mvmeppc Implement mvme160x platform-specifi...

[scw <scw%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/12314480edb5
branches:  trunk
changeset: 550050:12314480edb5
user:      scw <scw%NetBSD.org@localhost>
date:      Mon Jul 28 21:45:13 2003 +0000

description:
Implement mvme160x platform-specific reset using a semi-documented
register of the IBC.

diffstat:

 sys/arch/mvmeppc/mvmeppc/machdep.c       |   8 ++++----
 sys/arch/mvmeppc/mvmeppc/platform_160x.c |  13 +++++++++++--
 2 files changed, 15 insertions(+), 6 deletions(-)

diffs (64 lines):

diff -r 38c0c3b69c26 -r 12314480edb5 sys/arch/mvmeppc/mvmeppc/machdep.c
--- a/sys/arch/mvmeppc/mvmeppc/machdep.c        Mon Jul 28 21:33:57 2003 +0000
+++ b/sys/arch/mvmeppc/mvmeppc/machdep.c        Mon Jul 28 21:45:13 2003 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: machdep.c,v 1.15 2003/07/28 09:25:28 scw Exp $ */
+/*     $NetBSD: machdep.c,v 1.16 2003/07/28 21:45:13 scw Exp $ */
 
 /*
  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
@@ -32,7 +32,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.15 2003/07/28 09:25:28 scw Exp $");
+__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.16 2003/07/28 21:45:13 scw Exp $");
 
 #include "opt_compat_netbsd.h"
 #include "opt_mvmetype.h"
@@ -393,9 +393,9 @@
 
        printf("rebooting...\n\n");
 
-#if 0
        (*platform->reset)();
-#endif
+
+       printf("Oops! Board reset failed!\n");
 
        for (;;)
                continue;
diff -r 38c0c3b69c26 -r 12314480edb5 sys/arch/mvmeppc/mvmeppc/platform_160x.c
--- a/sys/arch/mvmeppc/mvmeppc/platform_160x.c  Mon Jul 28 21:33:57 2003 +0000
+++ b/sys/arch/mvmeppc/mvmeppc/platform_160x.c  Mon Jul 28 21:45:13 2003 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: platform_160x.c,v 1.3 2003/07/28 14:55:46 chs Exp $    */
+/*     $NetBSD: platform_160x.c,v 1.4 2003/07/28 21:45:14 scw Exp $    */
 
 /*-
  * Copyright (c) 2002 The NetBSD Foundation, Inc.
@@ -37,7 +37,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: platform_160x.c,v 1.3 2003/07/28 14:55:46 chs Exp $");
+__KERNEL_RCSID(0, "$NetBSD: platform_160x.c,v 1.4 2003/07/28 21:45:14 scw Exp $");
 
 #include <sys/param.h>
 #include <sys/device.h>
@@ -142,6 +142,15 @@
 static void
 p160x_reset(void)
 {
+       /*
+        * The mvme160x programmer's manual makes reference to an
+        * "IBC Port 92" register which can be used to reset the board.
+        * Unfortunately, I can't find any documentation for this
+        * register.
+        * Fortunately, it appears that simply setting bit-0 does
+        * the trick...
+        */
+       outb(0x80000092, inb(0x80000092) | 1);
 }
 
 static void