diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c
index 3497c8329c1d70bc7d010e97a3aeb66f524b9e1d..3022d67f0c48b9ead4d7e76ae2590f78c0d1d617 100644
--- a/arch/powerpc/kernel/mce_power.c
+++ b/arch/powerpc/kernel/mce_power.c
@@ -89,6 +89,13 @@ static void flush_and_reload_slb(void)
 
 static void flush_erat(void)
 {
+#ifdef CONFIG_PPC_BOOK3S_64
+	if (!early_cpu_has_feature(CPU_FTR_ARCH_300)) {
+		flush_and_reload_slb();
+		return;
+	}
+#endif
+	/* PPC_INVALIDATE_ERAT can only be used on ISA v3 and newer */
 	asm volatile(PPC_INVALIDATE_ERAT : : :"memory");
 }
 
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index 729f02df8290c4a9730d9b6af21abc0530c48072..aaa28fd918fe4ce26a5bb0a46909ecff9ec877c3 100644
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -115,6 +115,8 @@ static void tlbiel_all_isa300(unsigned int num_sets, unsigned int is)
 	tlbiel_hash_set_isa300(0, is, 0, 2, 1);
 
 	asm volatile("ptesync": : :"memory");
+
+	asm volatile(PPC_INVALIDATE_ERAT "; isync" : : :"memory");
 }
 
 void hash__tlbiel_all(unsigned int action)
@@ -140,8 +142,6 @@ void hash__tlbiel_all(unsigned int action)
 		tlbiel_all_isa206(POWER7_TLB_SETS, is);
 	else
 		WARN(1, "%s called on pre-POWER7 CPU\n", __func__);
-
-	asm volatile(PPC_INVALIDATE_ERAT "; isync" : : :"memory");
 }
 
 static inline unsigned long  ___tlbie(unsigned long vpn, int psize,