--- /tmp/rtems-4.9.1/c/src/lib/libbsp/powerpc/shared/irq/irq_init.c	2008-08-19 22:51:48.000000000 -1000
+++ c/src/lib/libbsp/powerpc/shared/irq/irq_init.c	2009-01-06 17:09:25.000000000 -1000
@@ -290,6 +290,10 @@
     /* nothing to do for W83C553 bridge */
     known_cpi_isa_bridge = 1;
   }
+  if ( currentBoard == MVME_2600_2700_W_MVME761 ) {
+    /* nothing to do for W83C553 bridge */
+    known_cpi_isa_bridge = 1;
+  }
   if ( currentBoard == MTX_WO_PP || currentBoard == MTX_W_PP ) {
      /* W83C554, don't to anything at the moment.  gregm 11/6/2002 */
      known_cpi_isa_bridge = 1;
