diff --git a/arch/powerpc/boot/dts/tqm8540.dts b/arch/powerpc/boot/dts/tqm8540.dts
index 231bae756637e0eca72b6b45b2056ab812bf029a..b6f1fc6eb9600f7ddb72ce3d65eaaf660da74eac 100644
--- a/arch/powerpc/boot/dts/tqm8540.dts
+++ b/arch/powerpc/boot/dts/tqm8540.dts
@@ -84,9 +84,9 @@
 			interrupt-parent = <&mpic>;
 			dfsrr;
 
-			dtt@50 {
+			dtt@48 {
 				compatible = "national,lm75";
-				reg = <0x50>;
+				reg = <0x48>;
 			};
 
 			rtc@68 {
diff --git a/arch/powerpc/boot/dts/tqm8541.dts b/arch/powerpc/boot/dts/tqm8541.dts
index 4356a1f08295d1edf7c9d6d2ee836c4f4d942e43..fa6a3d54a8a5f44860b4ecda5bc869d398e28898 100644
--- a/arch/powerpc/boot/dts/tqm8541.dts
+++ b/arch/powerpc/boot/dts/tqm8541.dts
@@ -83,9 +83,9 @@
 			interrupt-parent = <&mpic>;
 			dfsrr;
 
-			dtt@50 {
+			dtt@48 {
 				compatible = "national,lm75";
-				reg = <0x50>;
+				reg = <0x48>;
 			};
 
 			rtc@68 {
diff --git a/arch/powerpc/boot/dts/tqm8548-bigflash.dts b/arch/powerpc/boot/dts/tqm8548-bigflash.dts
index 28b1a95257cdfd8d5986f971b8cdf318d2808537..a423042b6915b1bf6088814adcc2b840edc3a773 100644
--- a/arch/powerpc/boot/dts/tqm8548-bigflash.dts
+++ b/arch/powerpc/boot/dts/tqm8548-bigflash.dts
@@ -85,9 +85,9 @@
 			interrupt-parent = <&mpic>;
 			dfsrr;
 
-			dtt@50 {
+			dtt@48 {
 				compatible = "national,lm75";
-				reg = <0x50>;
+				reg = <0x48>;
 			};
 
 			rtc@68 {
diff --git a/arch/powerpc/boot/dts/tqm8548.dts b/arch/powerpc/boot/dts/tqm8548.dts
index 826fb622cd3c4525f3f897401302016a97b8d53d..6734dddef7770c3477b534047e7d95441798c89c 100644
--- a/arch/powerpc/boot/dts/tqm8548.dts
+++ b/arch/powerpc/boot/dts/tqm8548.dts
@@ -85,9 +85,9 @@
 			interrupt-parent = <&mpic>;
 			dfsrr;
 
-			dtt@50 {
+			dtt@48 {
 				compatible = "national,lm75";
-				reg = <0x50>;
+				reg = <0x48>;
 			};
 
 			rtc@68 {
diff --git a/arch/powerpc/boot/dts/tqm8555.dts b/arch/powerpc/boot/dts/tqm8555.dts
index 06d366ebbda30a84e910e1e7242cb71b2c867431..6a99f1eef7ad2402b47e9ed8723121bf36dea151 100644
--- a/arch/powerpc/boot/dts/tqm8555.dts
+++ b/arch/powerpc/boot/dts/tqm8555.dts
@@ -83,9 +83,9 @@
 			interrupt-parent = <&mpic>;
 			dfsrr;
 
-			dtt@50 {
+			dtt@48 {
 				compatible = "national,lm75";
-				reg = <0x50>;
+				reg = <0x48>;
 			};
 
 			rtc@68 {
diff --git a/arch/powerpc/boot/dts/tqm8560.dts b/arch/powerpc/boot/dts/tqm8560.dts
index feff915e04926e2810a6ea5c8429aebe5557254e..b6c2d71defd3d4eb8d394d8d6900b04268d1cb56 100644
--- a/arch/powerpc/boot/dts/tqm8560.dts
+++ b/arch/powerpc/boot/dts/tqm8560.dts
@@ -85,9 +85,9 @@
 			interrupt-parent = <&mpic>;
 			dfsrr;
 
-			dtt@50 {
+			dtt@48 {
 				compatible = "national,lm75";
-				reg = <0x50>;
+				reg = <0x48>;
 			};
 
 			rtc@68 {