diff --git a/arch/mips/jz4780/dts/ci20.dts b/arch/mips/jz4780/dts/ci20.dts
index 7cdc970ce87a42..d0c9a364fea618 100644
--- a/arch/mips/jz4780/dts/ci20.dts
+++ b/arch/mips/jz4780/dts/ci20.dts
@@ -30,7 +30,7 @@
 	compatible = "img,ci20";
 
 	chosen {
-		bootargs = "console=ttyS0,115200 clk_ignore_unused";
+		bootargs = "console=ttyS0,115200 clk_ignore_unused root=/dev/mmcblk0p1 rootwait";
 	};
 
 	memory {