diff -Naurp linux-2.6.14.6.orig/arch/mips/Kconfig linux-2.6.14.6/arch/mips/Kconfig
--- linux-2.6.14.6.orig/arch/mips/Kconfig	2006-01-19 01:36:52.000000000 -0500
+++ linux-2.6.14.6/arch/mips/Kconfig	2006-01-19 01:44:23.000000000 -0500
@@ -594,6 +594,7 @@ config SGI_IP32
 	select SYS_HAS_CPU_R5000
 	select SYS_HAS_CPU_R10000 if BROKEN
 	select SYS_HAS_CPU_RM7000
+	select SYS_HAS_CPU_NEVADA
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	help
diff -Naurp linux-2.6.14.6.orig/include/asm-mips/mach-ip32/cpu-feature-overrides.h linux-2.6.14.6/include/asm-mips/mach-ip32/cpu-feature-overrides.h
--- linux-2.6.14.6.orig/include/asm-mips/mach-ip32/cpu-feature-overrides.h	2006-01-19 01:36:52.000000000 -0500
+++ linux-2.6.14.6/include/asm-mips/mach-ip32/cpu-feature-overrides.h	2006-01-19 01:44:52.000000000 -0500
@@ -18,7 +18,7 @@
  * so, for 64bit IP32 kernel we just don't use ll/sc.
  * This does not affect luserland.
  */
-#if defined(CONFIG_CPU_R5000) && defined(CONFIG_64BIT)
+#if (defined(CONFIG_CPU_R5000) || defined(CONFIG_CPU_NEVADA)) && defined(CONFIG_64BIT)
 #define cpu_has_llsc		0
 #else
 #define cpu_has_llsc		1