diff --git a/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h b/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
index bb291f41b6a3e06bc48b63c1df7a2b913d6d7ae2..3d830756b13a4cf7b11fd5f51cb1c116e01675e3 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
@@ -53,6 +53,7 @@
 #define cpu_has_userlocal	0
 #define cpu_has_vint		0
 #define cpu_has_veic		0
+#define cpu_hwrena_impl_bits	0xc0000000
 #define ARCH_HAS_READ_CURRENT_TIMER 1
 #define ARCH_HAS_IRQ_PER_CPU	1
 #define ARCH_HAS_SPINLOCK_PREFETCH 1
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index f54871797ab9cceb6d600e121be18dd06032a665..08f1edf355e80c51362e4e35822e4a109a419acc 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1510,10 +1510,6 @@ void __cpuinit per_cpu_trap_init(void)
 		write_c0_hwrena(enable);
 	}
 
-#ifdef CONFIG_CPU_CAVIUM_OCTEON
-	write_c0_hwrena(0xc000000f); /* Octeon has register 30 and 31 */
-#endif
-
 #ifdef CONFIG_MIPS_MT_SMTC
 	if (!secondaryTC) {
 #endif /* CONFIG_MIPS_MT_SMTC */