diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 356f38473b5d293c20b0049a0782106ee8c8c844..e02ada312be8239d687f491b7b75824a82b1204e 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -105,6 +105,8 @@ static void * __init get_memblock(unsigned long size)
 	else
 		panic("get_memblock() failed.\n");
 
+	memset(__va(phys), 0, size);
+
 	return __va(phys);
 }