diff --git a/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_0_8_0.dtsi b/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_0_8_0.dtsi
new file mode 100644
index 000000000000..940ac4d23916
--- /dev/null
+++ b/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_0_8_0.dtsi
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/delete-node/ &suit_storage_partition;
+
+/ {
+	reserved-memory {
+		suit_storage_partition: memory@e1eb000 {
+			reg = <0xe1eb000 DT_SIZE_K(24)>;
+		};
+	};
+};
diff --git a/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuapp_0_8_0.overlay b/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuapp_0_8_0.overlay
new file mode 100644
index 000000000000..a99b8aa4806f
--- /dev/null
+++ b/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuapp_0_8_0.overlay
@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) 2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <nrf54h20dk_nrf54h20_0_8_0.dtsi>
diff --git a/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuflpr_0_8_0.overlay b/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuflpr_0_8_0.overlay
new file mode 100644
index 000000000000..a99b8aa4806f
--- /dev/null
+++ b/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuflpr_0_8_0.overlay
@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) 2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <nrf54h20dk_nrf54h20_0_8_0.dtsi>
diff --git a/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuppr_0_8_0.overlay b/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuppr_0_8_0.overlay
new file mode 100644
index 000000000000..a99b8aa4806f
--- /dev/null
+++ b/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuppr_0_8_0.overlay
@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) 2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <nrf54h20dk_nrf54h20_0_8_0.dtsi>
diff --git a/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpurad_0_8_0.overlay b/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpurad_0_8_0.overlay
new file mode 100644
index 000000000000..a99b8aa4806f
--- /dev/null
+++ b/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpurad_0_8_0.overlay
@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) 2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <nrf54h20dk_nrf54h20_0_8_0.dtsi>
diff --git a/dts/bindings/arm/nordic,nrf-uicr-v2.yaml b/dts/bindings/arm/nordic,nrf-uicr-v2.yaml
index f509fdf40612..9000cce94c5b 100644
--- a/dts/bindings/arm/nordic,nrf-uicr-v2.yaml
+++ b/dts/bindings/arm/nordic,nrf-uicr-v2.yaml
@@ -17,10 +17,3 @@ properties:
     description: |
       Domain ID of the domain associated with this UICR instance. Must be unique
       across all UICR instances in the system.
-
-  ptr-ext-uicr:
-    type: phandle
-    required: true
-    description: |
-      Handle of a memory region reserved to contain an Extended UICR instance.
-      The address of that node will be stored in the UICR.PTREXTUICR register.
diff --git a/dts/common/nordic/nrf54h20.dtsi b/dts/common/nordic/nrf54h20.dtsi
index 4374246073b0..8728aec8618c 100644
--- a/dts/common/nordic/nrf54h20.dtsi
+++ b/dts/common/nordic/nrf54h20.dtsi
@@ -147,16 +147,8 @@
 		#address-cells = <1>;
 		#size-cells = <1>;
 
-		suit_storage_partition: memory@e1eb000 {
-			reg = <0xe1eb000 DT_SIZE_K(24)>;
-		};
-
-		cpurad_uicr_ext: memory@e1ff000 {
-			reg = <0xe1ff000 DT_SIZE_K(2)>;
-		};
-
-		cpuapp_uicr_ext: memory@e1ff800 {
-			reg = <0xe1ff800 DT_SIZE_K(2)>;
+		suit_storage_partition: memory@e1ed000 {
+			reg = <0xe1ed000 DT_SIZE_K(20)>;
 		};
 	};
 
@@ -219,14 +211,12 @@
 			compatible = "nordic,nrf-uicr-v2";
 			reg = <0xfff8000 DT_SIZE_K(2)>;
 			domain = <2>;
-			ptr-ext-uicr = <&cpuapp_uicr_ext>;
 		};
 
 		cpurad_uicr: uicr@fffa000 {
 			compatible = "nordic,nrf-uicr-v2";
 			reg = <0xfffa000 DT_SIZE_K(2)>;
 			domain = <3>;
-			ptr-ext-uicr = <&cpurad_uicr_ext>;
 		};
 
 		ficr: ficr@fffe000 {
diff --git a/dts/common/nordic/nrf9280.dtsi b/dts/common/nordic/nrf9280.dtsi
index 082234490761..c580afaa2927 100644
--- a/dts/common/nordic/nrf9280.dtsi
+++ b/dts/common/nordic/nrf9280.dtsi
@@ -113,14 +113,12 @@
 			compatible = "nordic,nrf-uicr-v2";
 			reg = <0xfff8000 DT_SIZE_K(2)>;
 			domain = <2>;
-			ptr-ext-uicr = <&cpuapp_uicr_ext>;
 		};
 
 		cpurad_uicr: uicr@fffa000 {
 			compatible = "nordic,nrf-uicr-v2";
 			reg = <0xfffa000 DT_SIZE_K(2)>;
 			domain = <3>;
-			ptr-ext-uicr = <&cpurad_uicr_ext>;
 		};
 
 		ficr: ficr@fffe000 {