diff --git a/cpu/mpc85xx/start.S b/cpu/mpc85xx/start.S
index eaed0e0..7a23b4f 100644
--- a/cpu/mpc85xx/start.S
+++ b/cpu/mpc85xx/start.S
@@ -156,6 +156,10 @@
 	mtspr	MCSR,r0			/* machine check syndrome register */
 	mtxer	r0			/* clear integer exception register */
 
+#ifdef CONFIG_SYS_BOOK3E_HV
+	mtspr	MAS8,r0			/* make sure MAS8 is clear */
+#endif
+
 	/* Enable Time Base and Select Time Base Clock */
 	lis	r0,HID0_EMCP@h		/* Enable machine check */
 #if defined(CONFIG_ENABLE_36BIT_PHYS)
diff --git a/cpu/mpc85xx/tlb.c b/cpu/mpc85xx/tlb.c
index 0497a29..03c2449 100644
--- a/cpu/mpc85xx/tlb.c
+++ b/cpu/mpc85xx/tlb.c
@@ -51,6 +51,9 @@
 #ifdef CONFIG_ENABLE_36BIT_PHYS
 	mtspr(MAS7, _mas7);
 #endif
+#ifdef CONFIG_SYS_BOOK3E_HV
+	mtspr(MAS8, 0);
+#endif
 	asm volatile("isync;msync;tlbwe;isync");
 
 #ifdef CONFIG_ADDR_MAP