diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
index 8feb42c89e47..9d96b19d0e7c 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
@@ -622,8 +622,8 @@ fss: bus@47000000 {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges = <0x00 0x47000000 0x00 0x47000000 0x00 0x00068400>,
-			 <0x05 0x00000000 0x05 0x00000000 0x01 0x00000000>,
-			 <0x07 0x00000000 0x07 0x00000000 0x01 0x00000000>;
+			 <0x00 0x50000000 0x00 0x50000000 0x00 0x10000000>,
+			 <0x04 0x00000000 0x04 0x00000000 0x04 0x00000000>;
 
 		ospi0: spi@47040000 {
 			compatible = "ti,am654-ospi", "cdns,qspi-nor";
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2.dtsi
index 568e6a04619d..ea16f82822ae 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2.dtsi
@@ -141,8 +141,7 @@ cbass_main: bus@100000 {
 			 <0x00 0x46000000 0x00 0x46000000 0x00 0x00200000>,
 			 <0x00 0x47000000 0x00 0x47000000 0x00 0x00068400>,
 			 <0x00 0x50000000 0x00 0x50000000 0x00 0x10000000>,
-			 <0x05 0x00000000 0x05 0x00000000 0x01 0x00000000>,
-			 <0x07 0x00000000 0x07 0x00000000 0x01 0x00000000>;
+			 <0x04 0x00000000 0x04 0x00000000 0x04 0x00000000>;
 
 		cbass_mcu_wakeup: bus@28380000 {
 			compatible = "simple-bus";
@@ -158,9 +157,8 @@ cbass_mcu_wakeup: bus@28380000 {
 				 <0x00 0x45100000 0x00 0x45100000 0x00 0x00c24000>, /* MMRs, remaining NAVSS */
 				 <0x00 0x46000000 0x00 0x46000000 0x00 0x00200000>, /* CPSW */
 				 <0x00 0x47000000 0x00 0x47000000 0x00 0x00068400>, /* OSPI register space */
-				 <0x00 0x50000000 0x00 0x50000000 0x00 0x10000000>, /* FSS OSPI0/1 data region 0 */
-				 <0x05 0x00000000 0x05 0x00000000 0x01 0x00000000>, /* FSS OSPI0 data region 3 */
-				 <0x07 0x00000000 0x07 0x00000000 0x01 0x00000000>; /* FSS OSPI1 data region 3*/
+				 <0x00 0x50000000 0x00 0x50000000 0x00 0x10000000>, /* FSS data region 1 */
+				 <0x04 0x00000000 0x04 0x00000000 0x04 0x00000000>; /* FSS data region 0/3 */
 
 		};