diff --git a/bootloader/ondavx747.c b/bootloader/ondavx747.c
index cdacb69bd2..ba169d7dfe 100644
--- a/bootloader/ondavx747.c
+++ b/bootloader/ondavx747.c
@@ -128,8 +128,7 @@ static int boot_of(void)
     __cpm_start_all();
 
     disable_interrupt();
-    __dcache_writeback_all();
-    __icache_invalidate_all();
+    commit_discard_idcache();
 
     for(i=8000; i>0; i--)
         asm volatile("nop\n");