--- a/arch/mips/boot/dts/vr9.dtsi	2019-02-15 00:02:29.250847492 +0100
+++ b/arch/mips/boot/dts/vr9.dtsi	2019-03-14 03:06:04.106022564 +0100
@@ -38,17 +38,19 @@
 			#interrupt-cells = <1>;
 			interrupt-controller;
 			compatible = "lantiq,icu";
-			reg = <0x80200 0x28
-				0x80228 0x28
-				0x80250 0x28
-				0x80278 0x28
-				0x802a0 0x28>;
+
+			reg = <0x80200 0xc8	// icu0
+				0x80300 0xc8	// icu1
+				>;
 		};
 
 		watchdog@803f0 {
 			compatible = "lantiq,xrx100-wdt", "lantiq,xrx100-wdt";
 			reg = <0x803f0 0x10>;
-
+			
+			//pc2005
+			status = "disabled";
+			
 			regmap = <&rcu0>;
 		};
 	};
@@ -59,7 +61,8 @@
 		compatible = "lantiq,sram", "simple-bus";
 		reg = <0x1f000000 0x800000>;
 		ranges = <0x0 0x1f000000 0x7fffff>;
-
+		
+		//interrupt
 		eiu0: eiu@101000 {
 			#interrupt-cells = <1>;
 			interrupt-controller;
@@ -69,21 +72,25 @@
 			lantiq,eiu-irqs = <166 135 66 40 41 42>;
 		};
 
+		//????todo power management unit
 		pmu0: pmu@102000 {
 			compatible = "lantiq,pmu-xway";
 			reg = <0x102000 0x1000>;
 		};
-
+		
+		//??? what
 		cgu0: cgu@103000 {
 			compatible = "lantiq,cgu-xway";
 			reg = <0x103000 0x1000>;
 		};
 
+		//DC DC power
 		dcdc@106a00 {
 			compatible = "lantiq,dcdc-xrx200";
 			reg = <0x106a00 0x200>;
 		};
-
+		
+		//todo drivers/char/ltq_mps2/drv_mps_linux.c
 		vmmc: vmmc@103000 {
 			status = "disabled";
 			compatible = "lantiq,vmmc-xway";
@@ -176,14 +183,16 @@
 				1 0 0x4000000 0x4000010>; /* addsel1 */
 			compatible = "lantiq,localbus", "simple-bus";
 		};
-
+		
+		//timer
 		gptu@e100a00 {
 			compatible = "lantiq,gptu-xway";
 			reg = <0xe100a00 0x100>;
 			interrupt-parent = <&icu0>;
 			interrupts = <126 127 128 129 130 131>;
 		};
-
+		
+		//uart or spi??
 		usif: usif@da00000 {
 			compatible = "lantiq,usif";
 			reg = <0xda00000 0x1000000>;
@@ -211,6 +220,7 @@
 			reg = <0xe100b10 0xa0>;
 		};
 
+		//gpio
 		stp: stp@e100bb0 {
 			status = "disabled";
 			compatible = "lantiq,gpio-stp-xway";
@@ -224,7 +234,8 @@
 			lantiq,phy1 = <0x0>;
 			lantiq,phy2 = <0x0>;
 		};
-
+		
+		//uart
 		asc1: serial@e100c00 {
 			compatible = "lantiq,asc";
 			reg = <0xe100c00 0x400>;
@@ -232,6 +243,7 @@
 			interrupts = <112 113 114>;
 		};
 
+		//Data Encryption Unit Driver
 		deu@e103100 {
 			compatible = "lantiq,deu-xrx200";
 			reg = <0xe103100 0xf00>;
@@ -242,6 +254,7 @@
 			reg = <0xe104100 0x800>;
 		};
 
+		//external bus unit
 		ebu0: ebu@e105300 {
 			compatible = "lantiq,ebu-xway";
 			reg = <0xe105300 0x100>;
@@ -286,6 +299,7 @@
 			lantiq,phys = <&gphy0>, <&gphy1>;
 		};
 
+		//todo! drv_mei_cpe-1.5.17.6/src/drv_mei_cpe_linux.c
 		mei@e116000 {
 			compatible = "lantiq,mei-xrx200";
 			reg = <0xe116000 0x9c>;
@@ -293,6 +307,7 @@
 			interrupts = <63>;
 		};
 
+		//TODO ltq-atm-vr9/ltq_atm.c 
 		ppe@e234000 {
 			compatible = "lantiq,ppe-xrx200";
 			interrupt-parent = <&icu0>;