diff --git a/kern/mips/cache.S b/kern/mips/cache.S
index ec13a9b95..e4436450f 100644
--- a/kern/mips/cache.S
+++ b/kern/mips/cache.S
@@ -3,7 +3,12 @@
 	/* FIXME: This should invalidate only part of memory.  */
 FUNCTION (grub_cpu_flush_cache)
 FUNCTION (grub_arch_sync_caches)
-#if __mips >= 2
-	sync
-#endif
+repeat:
+	cache 1, 0($a0)
+	cache 0, 0($a0)
+	cache 3, 0($a0)
+	cache 0, 0($a0)
+	addiu $a0, $a0, 1
+	addiu $a1, $a1, 0xffff
+	bne $a1, $zero, repeat
 	j $31