[nrf noup] Provide a workaround for Factory Data support on nRF54H

Until we do not have a proper solution for merging the factory data
hex file with the firmware hex file, we need to flash the factory
data manually. This commit allows doing that on nRF54H20 DK.

Signed-off-by: Arkadiusz Balys <arkadiusz.balys@nordicsemi.no>

Author: ArekBalysNordic

config/nrfconnect/chip-module/generate_factory_data.cmake

@@ -141,6 +141,17 @@ else()
     endif()
     dt_reg_addr(factory_data_addr PATH ${factory_data_alias})
     dt_reg_size(factory_data_size PATH ${factory_data_alias})
+
+    # If the location of the factory data is defined as an alias,
+    # add the base address to the factory data offset
+    # to get the proper offset calcualted from the base memory location.
+    dt_alias(factory_data_location PROPERTY "factory-data-location")
+    dt_node_exists(factory_data_location_exists PATH "${factory_data_location}")
+    if(${factory_data_location_exists})
+        dt_reg_addr(flash_base_addr PATH ${factory_data_location})
+        math(EXPR factory_data_addr "${flash_base_addr} + ${factory_data_addr}" OUTPUT_FORMAT HEXADECIMAL)
+    endif()
+            
     string(APPEND script_args "--offset ${factory_data_addr}\n")
     string(APPEND script_args "--size ${factory_data_size}\n")     
 endif()

src/platform/nrfconnect/FactoryDataProvider.h

@@ -36,7 +36,12 @@
 #else
 #include <zephyr/storage/flash_map.h>
 #define FACTORY_DATA_SIZE DT_REG_SIZE(DT_ALIAS(factory_data))
+#define FACTORY_DATA_LOCATION_ADDRESS DT_REG_ADDR(DT_ALIAS(factory_data_location))
+#if FACTORY_DATA_LOCATION_ADDRESS
+#define FACTORY_DATA_ADDRESS (DT_REG_ADDR(DT_ALIAS(factory_data)) + FACTORY_DATA_LOCATION_ADDRESS)
+#else
 #define FACTORY_DATA_ADDRESS DT_REG_ADDR(DT_ALIAS(factory_data))
+#endif // if FACTORY_DATA_LOCATION_ADDRESS
 #endif // if defined(USE_PARTITION_MANAGER) && USE_PARTITION_MANAGER == 1
 
 #include <system/SystemError.h>