diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 2c9ee98..885f352 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -120,12 +120,15 @@
  * configuration data in statically from the platform). An additional
  * argument of struct dma_slave_config must be passed in with this
  * command.
+ * @FSLDMA_EXTERNAL_START: this command will put the Freescale DMA controller
+ * into external start mode.
  */
 enum dma_ctrl_cmd {
 	DMA_TERMINATE_ALL,
 	DMA_PAUSE,
 	DMA_RESUME,
 	DMA_SLAVE_CONFIG,
+	FSLDMA_EXTERNAL_START,
 };
 
 /**