Index: src/arm64/rockchip/rk3399-rockpro64.dtsi
--- src/arm64/rockchip/rk3399-rockpro64.dtsi.orig
+++ src/arm64/rockchip/rk3399-rockpro64.dtsi
@@ -17,7 +17,7 @@
 	};
 
 	chosen {
-		stdout-path = "serial2:1500000n8";
+		stdout-path = "serial2:115200n8";
 	};
 
 	/* enable for panel backlight support */
