We made a u-boot patch to fix the hang up issue
when booting filesystem from ramdisk.

Signed-off-by:Jason Jin <Jason.jin@freescale.com>
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index e5d70fa..a78a16d 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -538,6 +538,7 @@
 			initrd_copy_to_ram = 0;
 	} else {	/* not set, no restrictions to load high */
 		initrd_high = ~0;
+		initrd_copy_to_ram = 0;
 	}
 
 #ifdef CONFIG_LOGBUFFER