[nrf noup] boot/zephyr/socs: nrf54h20 prj.conf for S2RAM

Added configuration which pre-configures MCUboot so It is able
to support operation of resuming the App from S2RAM by the application
itself.

Offset application start address by mrm1x.

Implementation is able to support only MCUboot modes with a swap.
Direct-XIP is not handled as it require a way to run-time recognization of
active application slot.

Signed-off-by: Tomasz Chyrowicz <[email protected]>

Author: nvlsianpu

boot/zephyr/nrf54h20_custom_s2ram.c

@@ -20,11 +20,17 @@
  * `zephyr,memory-region` compatible DT node with nodelabel `mcuboot_s2ram`.
  */
 __attribute__((section(DT_PROP(DT_NODELABEL(mcuboot_s2ram), zephyr_memory_region))))
-struct mcuboot_resume_s _mcuboot_resume;
+volatile struct mcuboot_resume_s _mcuboot_resume;
 #else
     #error  "mcuboot resume support section not defined in dts"
 #endif
 
+#define FIXED_PARTITION_ADDR(node_label)                                   \
+	(DT_REG_ADDR(DT_NODELABEL(node_label)) +                               \
+	 COND_CODE_0(DT_FIXED_PARTITION_EXISTS(DT_NODELABEL(node_label)), (0), \
+        (DT_REG_ADDR(DT_GPARENT(DT_NODELABEL(node_label))))))
+
+
 int soc_s2ram_suspend(pm_s2ram_system_off_fn_t system_off)
 {
 	(void)(system_off);
@@ -61,7 +67,7 @@ bool pm_s2ram_mark_check_and_clear(void)
 
 	// s2ram boot
     struct arm_vector_table *vt;
-    vt = (struct arm_vector_table *)(FIXED_PARTITION_OFFSET(slot0_partition) + 0x800);
+    vt = (struct arm_vector_table *)(FIXED_PARTITION_ADDR(slot0_partition) + 0x800);
 
 	// Jump to application
     __asm__ volatile (

boot/zephyr/socs/nrf54h20_cpuapp.conf

@@ -0,0 +1,13 @@
+# Copyright (c) 2025 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+# Configuration which is needed for supporting resume the application execution
+# after suspend to RAM (S2RAM) requested by the application.
+# MCUboot does not support S2RAM itself, but serves as an immediate actor while waking up
+# from suspension.
+CONFIG_PM=y
+CONFIG_PM_S2RAM=y
+CONFIG_PM_S2RAM_CUSTOM_MARKING=y
+CONFIG_SOC_NRF54H20_PM_S2RAM_OVERRIDE=y