diff --git a/patch/kernel/rockchip-default/xt-q8l-v10-add-device-tree.patch b/patch/kernel/rockchip-default/xt-q8l-v10-add-device-tree.patch
index 82814dae6f..70d41a6c6d 100644
--- a/patch/kernel/rockchip-default/xt-q8l-v10-add-device-tree.patch
+++ b/patch/kernel/rockchip-default/xt-q8l-v10-add-device-tree.patch
@@ -1,4 +1,4 @@
---- /dev/null	2018-12-06 21:33:05.512000000 +0000
+--- /dev/null
 +++ b/arch/arm/boot/dts/rk3288-xt-q8l-v10.dts	2018-09-23 13:07:34.000000000 +0000
 @@ -0,0 +1,1120 @@
 +/*
diff --git a/patch/kernel/rockchip-dev/xt-q8l-v10-add-device-tree.patch b/patch/kernel/rockchip-dev/xt-q8l-v10-add-device-tree.patch
index 1d93886e15..f077a28e78 100644
--- a/patch/kernel/rockchip-dev/xt-q8l-v10-add-device-tree.patch
+++ b/patch/kernel/rockchip-dev/xt-q8l-v10-add-device-tree.patch
@@ -1,6 +1,6 @@
---- /dev/null	2018-12-06 21:33:05.512000000 +0000
-+++ b/arch/arm/boot/dts/rk3288-xt-q8l-v10.dts	2018-12-06 21:46:51.493688015 +0000
-@@ -0,0 +1,966 @@
+--- /dev/null
++++ b/arch/arm/boot/dts/rk3288-xt-q8l-v10.dts	2018-12-09 14:29:56.405019782 +0000
+@@ -0,0 +1,969 @@
 +/*
 + * Copyright (c) 2014, 2015 FUKAUMI Naoki <naobsd@gmail.com>
 + * 					   2018 Paolo Sabatino <paolo.sabatino@gm**l.com>
@@ -847,36 +847,39 @@
 + *  - uart0 is the serial port connected to the bluetooth module
 + *  - uart2 is the onboard serial port 
 + * 
++ * As ok kernel 4.19 DMA for serial ports is disabled because it makes
++ * the ports unusable
++ * 
 + */
 +&uart0 {
 +	pinctrl-names = "default";
 +	pinctrl-0 = <&uart0_xfer>, <&uart0_cts>, <&uart0_rts>;
-+	dmas = <&dmac_peri 1 &dmac_peri 2>;
-+	dma-names = "tx", "rx";
++	//dmas = <&dmac_peri 1 &dmac_peri 2>;
++	//dma-names = "tx", "rx";
 +	status = "okay";
 +};
 +
 +&uart1 {
-+	dmas = <&dmac_peri 3 &dmac_peri 4>;
-+	dma-names = "tx", "rx";
++	//dmas = <&dmac_peri 3 &dmac_peri 4>;
++	//dma-names = "tx", "rx";
 +	status = "okay";
 +};
 +
 +&uart2 {
-+	dmas = <&dmac_bus_s 4 &dmac_bus_s 5>;
-+	dma-names = "tx", "rx";
++	//dmas = <&dmac_bus_s 4 &dmac_bus_s 5>;
++	//dma-names = "tx", "rx";
 +	status = "okay";
 +};
 +
 +&uart3 {
-+	dmas = <&dmac_peri 7 &dmac_peri 8>;
-+	dma-names = "tx", "rx";
++	//dmas = <&dmac_peri 7 &dmac_peri 8>;
++	//dma-names = "tx", "rx";
 +	status = "okay";
 +};
 +
 +&uart4 {
-+	dmas = <&dmac_peri 9 &dmac_peri 10>;
-+	dma-names = "tx", "rx";
++	//dmas = <&dmac_peri 9 &dmac_peri 10>;
++	//dma-names = "tx", "rx";
 +	status = "disabled";
 +};
 +
diff --git a/patch/kernel/rockchip-next/xt-q8l-v10-add-device-tree.patch b/patch/kernel/rockchip-next/xt-q8l-v10-add-device-tree.patch
index 4c17f841b5..0198f68f9e 100644
--- a/patch/kernel/rockchip-next/xt-q8l-v10-add-device-tree.patch
+++ b/patch/kernel/rockchip-next/xt-q8l-v10-add-device-tree.patch
@@ -1,4 +1,4 @@
---- /dev/null	2018-12-06 21:33:05.512000000 +0000
+--- /dev/null
 +++ b/arch/arm/boot/dts/rk3288-xt-q8l-v10.dts	2018-11-29 21:02:56.636665164 +0000
 @@ -0,0 +1,951 @@
 +/*
diff --git a/patch/u-boot/u-boot-rockchip/board_xt-q8l-v10/xt-q8l-v10-device-tree.patch b/patch/u-boot/u-boot-rockchip/board_xt-q8l-v10/xt-q8l-v10-device-tree.patch
index fcc1aea24f..912fda6be2 100644
--- a/patch/u-boot/u-boot-rockchip/board_xt-q8l-v10/xt-q8l-v10-device-tree.patch
+++ b/patch/u-boot/u-boot-rockchip/board_xt-q8l-v10/xt-q8l-v10-device-tree.patch
@@ -1,4 +1,4 @@
---- /dev/null	2018-12-06 21:33:05.512000000 +0000
+--- /dev/null
 +++ b/arch/arm/dts/rk3288-xt-q8l-v10.dts	2018-09-23 12:59:27.000000000 +0000
 @@ -0,0 +1,740 @@
 +/*