diff --git a/arch/powerpc/boot/dts/tqm8540.dts b/arch/powerpc/boot/dts/tqm8540.dts
index a693f01c21aa..39e55ab82b89 100644
--- a/arch/powerpc/boot/dts/tqm8540.dts
+++ b/arch/powerpc/boot/dts/tqm8540.dts
@@ -84,6 +84,11 @@
 			interrupt-parent = <&mpic>;
 			dfsrr;
 
+			dtt@50 {
+				compatible = "national,lm75";
+				reg = <0x50>;
+			};
+
 			rtc@68 {
 				compatible = "dallas,ds1337";
 				reg = <0x68>;
diff --git a/arch/powerpc/boot/dts/tqm8541.dts b/arch/powerpc/boot/dts/tqm8541.dts
index 9e3f5f0dde20..58ae8bc58817 100644
--- a/arch/powerpc/boot/dts/tqm8541.dts
+++ b/arch/powerpc/boot/dts/tqm8541.dts
@@ -83,6 +83,11 @@
 			interrupt-parent = <&mpic>;
 			dfsrr;
 
+			dtt@50 {
+				compatible = "national,lm75";
+				reg = <0x50>;
+			};
+
 			rtc@68 {
 				compatible = "dallas,ds1337";
 				reg = <0x68>;
diff --git a/arch/powerpc/boot/dts/tqm8548-bigflash.dts b/arch/powerpc/boot/dts/tqm8548-bigflash.dts
index 86ebbe9ca74a..bff380a25aa6 100644
--- a/arch/powerpc/boot/dts/tqm8548-bigflash.dts
+++ b/arch/powerpc/boot/dts/tqm8548-bigflash.dts
@@ -85,6 +85,11 @@
 			interrupt-parent = <&mpic>;
 			dfsrr;
 
+			dtt@50 {
+				compatible = "national,lm75";
+				reg = <0x50>;
+			};
+
 			rtc@68 {
 				compatible = "dallas,ds1337";
 				reg = <0x68>;
diff --git a/arch/powerpc/boot/dts/tqm8548.dts b/arch/powerpc/boot/dts/tqm8548.dts
index c7eb92166093..112ac90f2ea7 100644
--- a/arch/powerpc/boot/dts/tqm8548.dts
+++ b/arch/powerpc/boot/dts/tqm8548.dts
@@ -85,6 +85,11 @@
 			interrupt-parent = <&mpic>;
 			dfsrr;
 
+			dtt@50 {
+				compatible = "national,lm75";
+				reg = <0x50>;
+			};
+
 			rtc@68 {
 				compatible = "dallas,ds1337";
 				reg = <0x68>;
diff --git a/arch/powerpc/boot/dts/tqm8555.dts b/arch/powerpc/boot/dts/tqm8555.dts
index cf92b4e7945e..4b7da890c03b 100644
--- a/arch/powerpc/boot/dts/tqm8555.dts
+++ b/arch/powerpc/boot/dts/tqm8555.dts
@@ -83,6 +83,11 @@
 			interrupt-parent = <&mpic>;
 			dfsrr;
 
+			dtt@50 {
+				compatible = "national,lm75";
+				reg = <0x50>;
+			};
+
 			rtc@68 {
 				compatible = "dallas,ds1337";
 				reg = <0x68>;
diff --git a/arch/powerpc/boot/dts/tqm8560.dts b/arch/powerpc/boot/dts/tqm8560.dts
index fe83d22118cc..3fa552f31edb 100644
--- a/arch/powerpc/boot/dts/tqm8560.dts
+++ b/arch/powerpc/boot/dts/tqm8560.dts
@@ -85,6 +85,11 @@
 			interrupt-parent = <&mpic>;
 			dfsrr;
 
+			dtt@50 {
+				compatible = "national,lm75";
+				reg = <0x50>;
+			};
+
 			rtc@68 {
 				compatible = "dallas,ds1337";
 				reg = <0x68>;