diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 56fdde35a1202804a521fdf6beacb27647db3e45..787ea2a31593796c31d9d185960ffe071b51135a 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -143,8 +143,11 @@
 			ranges = <0 0x4a000000 0x1000000>;
 
 			cm1: cm1@4000 {
-				compatible = "ti,omap4-cm1";
+				compatible = "ti,omap4-cm1", "simple-bus";
 				reg = <0x4000 0x2000>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				ranges = <0 0x4000 0x2000>;
 
 				cm1_clocks: clocks {
 					#address-cells = <1>;
@@ -156,8 +159,11 @@
 			};
 
 			cm2: cm2@8000 {
-				compatible = "ti,omap4-cm2";
+				compatible = "ti,omap4-cm2", "simple-bus";
 				reg = <0x8000 0x3000>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				ranges = <0 0x8000 0x3000>;
 
 				cm2_clocks: clocks {
 					#address-cells = <1>;
@@ -243,6 +249,9 @@
 					compatible = "ti,omap4-prm";
 					reg = <0x6000 0x3000>;
 					interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+					#address-cells = <1>;
+					#size-cells = <1>;
+					ranges = <0 0x6000 0x3000>;
 
 					prm_clocks: clocks {
 						#address-cells = <1>;