Revert "[nrf noup] soc/nordic/nrf54h/pm_s2ram: S2RAM resume hardening"

This reverts commit a41a631.

Signed-off-by: Adam Kondraciuk <[email protected]>

Author: adamkondraciuk

boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuapp.dts

@@ -345,26 +345,19 @@ zephyr_udc0: &usbhs {
 
 /* Trim this RAM block for making room on all run-time common S2RAM cpu context. */
 &cpuapp_ram0 {
-	reg = <0x22000000 (DT_SIZE_K(32) - 52)>;
-	ranges = <0x0 0x22000000 (0x8000 - 0x34)>;
+	reg = <0x22000000 (DT_SIZE_K(32) - 48)>;
+	ranges = <0x0 0x22000000 (0x8000 - 0x30)>;
 };
 
 / {
 	soc {
 		/* temporary stack for S2RAM resume logic */
-		pm_s2ram_stack: cpuapp_s2ram_stack@22007fcc  {
+		pm_s2ram_stack: cpuapp_s2ram_stack@22007fd0  {
 			compatible = "zephyr,memory-region", "mmio-sram";
-			reg = <0x22007fcc 16>;
+			reg = <0x22007fd0 16>;
 			zephyr,memory-region = "pm_s2ram_stack";
 		};
 
-		/* run-time common mcuboot S2RAM support section */
-		mcuboot_s2ram: cpuapp_s2ram@22007fdc  {
-			compatible = "zephyr,memory-region", "mmio-sram";
-			reg = <0x22007fdc 4>;
-			zephyr,memory-region = "mcuboot_s2ram_context";
-		};
-
 		/* run-time common S2RAM cpu context RAM */
 		pm_s2ram: cpuapp_s2ram@22007fe0  {
 			compatible = "zephyr,memory-region", "mmio-sram";

soc/nordic/nrf54h/pm_s2ram.c

@@ -219,24 +219,10 @@ static void fpu_restore(_fpu_context_t *backup)
 #endif /* !defined(CONFIG_FPU_SHARING) */
 #endif /* defined(CONFIG_FPU) */
 
-#if DT_NODE_EXISTS(DT_NODELABEL(mcuboot_s2ram)) &&\
-	DT_NODE_HAS_COMPAT(DT_NODELABEL(mcuboot_s2ram), zephyr_memory_region)
-/* Linker section name is given by `zephyr,memory-region` property of
- * `zephyr,memory-region` compatible DT node with nodelabel `mcuboot_s2ram`.
- */
-__attribute__((section(DT_PROP(DT_NODELABEL(mcuboot_s2ram), zephyr_memory_region))))
-volatile struct mcuboot_resume_s _mcuboot_resume;
-
-#define SET_MCUBOOT_RESUME_MAGIC() _mcuboot_resume.magic = MCUBOOT_S2RAM_RESUME_MAGIC
-#else
-#define SET_MCUBOOT_RESUME_MAGIC()
-#endif
-
 int soc_s2ram_suspend(pm_s2ram_system_off_fn_t system_off)
 {
 	int ret;
 
-	SET_MCUBOOT_RESUME_MAGIC();
 	scb_save(&backup_data.scb_context);
 #if defined(CONFIG_FPU)
 #if !defined(CONFIG_FPU_SHARING)

soc/nordic/nrf54h/pm_s2ram.h

@@ -10,12 +10,6 @@
 #ifndef _ZEPHYR_SOC_ARM_NORDIC_NRF_PM_S2RAM_H_
 #define _ZEPHYR_SOC_ARM_NORDIC_NRF_PM_S2RAM_H_
 
-#define MCUBOOT_S2RAM_RESUME_MAGIC 0x75832419
-
-struct mcuboot_resume_s {
-	uint32_t magic; /* magic value to identify valid structure */
-};
-
 /**
  * @brief Save CPU state on suspend
  *