diff --git a/arch/arm/boot/dts/rv1109-evb-ddr3-v10.dts b/arch/arm/boot/dts/rv1109-evb-ddr3-v10.dts
index 8914660dea17..17a3294f3e84 100644
--- a/arch/arm/boot/dts/rv1109-evb-ddr3-v10.dts
+++ b/arch/arm/boot/dts/rv1109-evb-ddr3-v10.dts
@@ -12,6 +12,6 @@
 	compatible = "rockchip,rv1109-evb-ddr3-v10", "rockchip,rv1109";
 
 	chosen {
-		bootargs = "clk_ignore_unused earlycon=uart8250,mmio32,0xff570000 console=ttyFIQ0 root=PARTUUID=614e0000-0000 rootfstype=ext4 rootwait";
+		bootargs = "clk_ignore_unused earlycon=uart8250,mmio32,0xff570000 console=ttyFIQ0 root=PARTUUID=614e0000-0000 rootfstype=ext4 rootwait snd_aloop.index=7";
 	};
 };
diff --git a/arch/arm/boot/dts/rv1109-evb-lp3-v10.dts b/arch/arm/boot/dts/rv1109-evb-lp3-v10.dts
index 15c9dce056df..fc507c9084e4 100644
--- a/arch/arm/boot/dts/rv1109-evb-lp3-v10.dts
+++ b/arch/arm/boot/dts/rv1109-evb-lp3-v10.dts
@@ -13,6 +13,6 @@
 	compatible = "rockchip,rv1109-evb-lp3-v10", "rockchip,rv1109";
 
 	chosen {
-		bootargs = "clk_ignore_unused earlycon=uart8250,mmio32,0xff570000 console=ttyFIQ0 root=PARTUUID=614e0000-0000 rootfstype=ext4 rootwait";
+		bootargs = "clk_ignore_unused earlycon=uart8250,mmio32,0xff570000 console=ttyFIQ0 root=PARTUUID=614e0000-0000 rootfstype=ext4 rootwait snd_aloop.index=7";
 	};
 };
diff --git a/arch/arm/boot/dts/rv1126-evb-ddr3-v10.dts b/arch/arm/boot/dts/rv1126-evb-ddr3-v10.dts
index 9b417af11b34..27efa78f860c 100644
--- a/arch/arm/boot/dts/rv1126-evb-ddr3-v10.dts
+++ b/arch/arm/boot/dts/rv1126-evb-ddr3-v10.dts
@@ -12,6 +12,6 @@
 	compatible = "rockchip,rv1126-evb-ddr3-v10", "rockchip,rv1126";
 
 	chosen {
-		bootargs = "clk_ignore_unused earlycon=uart8250,mmio32,0xff570000 console=ttyFIQ0 root=PARTUUID=614e0000-0000 rootfstype=ext4 rootwait";
+		bootargs = "clk_ignore_unused earlycon=uart8250,mmio32,0xff570000 console=ttyFIQ0 root=PARTUUID=614e0000-0000 rootfstype=ext4 rootwait snd_aloop.index=7";
 	};
 };
diff --git a/arch/arm/boot/dts/rv1126-evb-lp3-v10.dts b/arch/arm/boot/dts/rv1126-evb-lp3-v10.dts
index 52816e624c43..f9d7137e59c2 100644
--- a/arch/arm/boot/dts/rv1126-evb-lp3-v10.dts
+++ b/arch/arm/boot/dts/rv1126-evb-lp3-v10.dts
@@ -13,6 +13,6 @@
 	compatible = "rockchip,rv1126-evb-lp3-v10", "rockchip,rv1126";
 
 	chosen {
-		bootargs = "clk_ignore_unused earlycon=uart8250,mmio32,0xff570000 console=ttyFIQ0 root=PARTUUID=614e0000-0000 rootfstype=ext4 rootwait";
+		bootargs = "clk_ignore_unused earlycon=uart8250,mmio32,0xff570000 console=ttyFIQ0 root=PARTUUID=614e0000-0000 rootfstype=ext4 rootwait snd_aloop.index=7";
 	};
 };