If you compile a mips kernel for IP22 with newport console it will
cause the kernel to panic when booted on an Indigo 2. This is fixed 
with this patch.

Index: arch/mips/config.in
===================================================================
RCS file: /cvs/linux/arch/mips/config.in,v
retrieving revision 1.96
diff -u -r1.96 config.in
--- arch/mips/config.in	2001/03/18 04:20:23	1.96
+++ arch/mips/config.in	2001/03/25 13:57:39
@@ -430,11 +430,10 @@
    if [ "$CONFIG_VT" = "y" ]; then
       bool 'Support for console on virtual terminal' CONFIG_VT_CONSOLE
       tristate 'SGI Newport Console support' CONFIG_SGI_NEWPORT_CONSOLE
-      if [ "$CONFIG_SGI_NEWPORT_CONSOLE" != "y" ]; then
-	 define_bool CONFIG_DUMMY_CONSOLE y
-      else
+      if [ "$CONFIG_SGI_NEWPORT_CONSOLE" = "y" ]; then
 	 define_bool CONFIG_FONT_8x16 y
       fi
+      define_bool CONFIG_DUMMY_CONSOLE y
    fi
    bool 'PS/2 mouse support' CONFIG_PSMOUSE
    if [ "$CONFIG_PSMOUSE" != "n" ]; then
 			int len = strlen(ignored[i]);
Index: arch/mips/sgi/kernel/setup.c
===================================================================
RCS file: /cvs/linux/arch/mips/sgi/kernel/setup.c,v
retrieving revision 1.43
diff -u -r1.43 setup.c
--- arch/mips/sgi/kernel/setup.c	2001/03/11 21:52:24	1.43
+++ arch/mips/sgi/kernel/setup.c	2001/03/25 13:57:41
@@ -290,19 +290,23 @@
 
 #ifdef CONFIG_VT
 #ifdef CONFIG_SGI_NEWPORT_CONSOLE
-	conswitchp = &newport_con;
+	if( mips_machtype == MACH_SGI_INDY ) {
+		conswitchp = &newport_con;
 
-	screen_info = (struct screen_info) {
-		0, 0,		/* orig-x, orig-y */
-		0,		/* unused */
-		0,		/* orig_video_page */
-		0,		/* orig_video_mode */
-		160,		/* orig_video_cols */
-		0, 0, 0,	/* unused, ega_bx, unused */
-		64,		/* orig_video_lines */
-		0,		/* orig_video_isVGA */
-		16		/* orig_video_points */
-	};
+		screen_info = (struct screen_info) {
+			0, 0,		/* orig-x, orig-y */
+			0,		/* unused */
+			0,		/* orig_video_page */
+			0,		/* orig_video_mode */
+			160,		/* orig_video_cols */
+			0, 0, 0,	/* unused, ega_bx, unused */
+			64,		/* orig_video_lines */
+			0,		/* orig_video_isVGA */
+			16		/* orig_video_points */
+		};
+	} else {
+		conswitchp = &dummy_con;
+	}
 #else
 	conswitchp = &dummy_con;
 #endif