[nrf noup] drivers: flash: Allow reading secure mem by nrf_rram.

fixup! [nrf noup] tree-wide: support NCS Partition Manager (PM) definitions

To read the secure memory we need to use soc_secure_mem_read
function instead of memcpy.

This commit allows to use the soc_secure_mem_read function
if the CONFIG_TRUSTED_EXECUTION_NONSECURE and PARTITION_MANAGER
is enabled.

Signed-off-by: Arkadiusz Balys <[email protected]>
(cherry picked from commit 711346a)

drivers/flash/soc_flash_nrf_rram.c

@@ -54,6 +54,11 @@ LOG_MODULE_REGISTER(flash_nrf_rram, CONFIG_FLASH_LOG_LEVEL);
 #define WRITE_BLOCK_SIZE_FROM_DT DT_PROP(RRAM, write_block_size)
 #define ERASE_VALUE              0xFF
 
+#if CONFIG_TRUSTED_EXECUTION_NONSECURE && USE_PARTITION_MANAGER
+#include <soc_secure.h>
+#include <pm_config.h>
+#endif /* CONFIG_TRUSTED_EXECUTION_NONSECURE && USE_PARTITION_MANAGER */
+
 #ifdef CONFIG_MULTITHREADING
 static struct k_sem sem_lock;
 #define SYNC_INIT()   k_sem_init(&sem_lock, 1, 1)
@@ -279,6 +284,12 @@ static int nrf_rram_read(const struct device *dev, off_t addr, void *data, size_
 	}
 	addr += RRAM_START;
 
+#if CONFIG_TRUSTED_EXECUTION_NONSECURE && USE_PARTITION_MANAGER && PM_APP_ADDRESS
+	if (addr < PM_APP_ADDRESS) {
+		return soc_secure_mem_read(data, (void *)addr, len);
+	}
+#endif
+
 	memcpy(data, (void *)addr, len);
 
 	return 0;