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Implement mvme160x platform-specific reset using a semi-documented 

register of the IBC.
This commit is contained in:
scw 2003-07-28 21:45:13 +00:00
parent ebfb9912e2
commit ef9f9d240b
2 changed files with 15 additions and 6 deletions
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8
sys/arch/mvmeppc/mvmeppc/machdep.c
View File

@ -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 @@ halt_sys:
printf("rebooting...\n\n");
#if 0
(*platform->reset)();
#endif
printf("Oops! Board reset failed!\n");
for (;;)
continue;

13
sys/arch/mvmeppc/mvmeppc/platform_160x.c
View File

@ -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 @@ p160x_cpu_setup(struct device *dev)
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