Index: sys/arch/sgimips/dev/crime.c
===================================================================
RCS file: /cvsroot/src/sys/arch/sgimips/dev/crime.c,v
retrieving revision 1.38
diff -p -u -r1.38 crime.c
--- sys/arch/sgimips/dev/crime.c	18 Feb 2015 16:47:58 -0000	1.38
+++ sys/arch/sgimips/dev/crime.c	12 Apr 2021 23:05:31 -0000
@@ -107,6 +107,8 @@ crime_attach(device_t parent, device_t s
 	uint64_t baseline, endline;
 	uint32_t startctr, endctr, cps;
 
+	platform.mach_reset = crime_reboot;
+
 	sc->sc_dev = self;
 	crm_iot = normal_memt;
 
Index: sys/arch/sgimips/include/sysconf.h
===================================================================
RCS file: /cvsroot/src/sys/arch/sgimips/include/sysconf.h,v
retrieving revision 1.8
diff -p -u -r1.8 sysconf.h
--- sys/arch/sgimips/include/sysconf.h	20 Feb 2011 07:59:50 -0000	1.8
+++ sys/arch/sgimips/include/sysconf.h	12 Apr 2021 23:05:31 -0000
@@ -81,6 +81,7 @@ struct platform {
 	void	(*intr3)(vaddr_t, uint32_t, uint32_t);
 	void	(*intr4)(vaddr_t, uint32_t, uint32_t);
 	void	(*intr5)(vaddr_t, uint32_t, uint32_t);
+	void	(*mach_reset)(void);
 };
 
 extern struct platform platform;
Index: sys/arch/sgimips/sgimips/machdep.c
===================================================================
RCS file: /cvsroot/src/sys/arch/sgimips/sgimips/machdep.c,v
retrieving revision 1.150
diff -p -u -r1.150 machdep.c
--- sys/arch/sgimips/sgimips/machdep.c	11 Jun 2020 19:20:45 -0000	1.150
+++ sys/arch/sgimips/sgimips/machdep.c	12 Apr 2021 23:05:31 -0000
@@ -98,6 +98,7 @@ __KERNEL_RCSID(0, "$NetBSD: machdep.c,v 
 #include <ddb/db_access.h>
 #include <ddb/db_sym.h>
 #include <ddb/db_extern.h>
+#include <ddb/db_output.h>
 #include <sys/exec_elf.h>
 #endif
 
@@ -197,6 +198,7 @@ static void	*unimpl_intr_establish(int, 
 static void	unimpl_intr(vaddr_t, uint32_t, uint32_t);
 static unsigned	long nulllong(void);
 static void	nullvoid(void);
+static void	ddb_sgimips_mach_reset(void);
 
 void ddb_trap_hook(int where);
 
@@ -216,7 +218,8 @@ struct platform platform = {
 	.intr2			= unimpl_intr,
 	.intr3			= unimpl_intr,
 	.intr4			= unimpl_intr,
-	.intr5			= unimpl_intr
+	.intr5			= unimpl_intr,
+	.mach_reset		= nullvoid,
 };
 
 extern u_int32_t ssir;
@@ -263,6 +266,10 @@ mach_init(int argc, int32_t argv32[], ui
 	char **argv = (void *)argv32;
 #endif
 
+#if defined(DDB)
+	cpu_reset_address = ddb_sgimips_mach_reset;
+#endif
+
 	/*
 	 * Initialize firmware.  This will set up the bootstrap console.
 	 * At this point we do not yet know the machine type, so we
@@ -929,6 +936,15 @@ void ddb_trap_hook(int where)
 	}
 }
 
+static void
+ddb_sgimips_mach_reset(void)
+{
+	if (platform.mach_reset)
+		(*platform.mach_reset)();
+	else
+		db_printf("sgimips mach reset not implemented.");
+}
+
 #endif
 
 void mips_machdep_cache_config(void)