[nrf fromlist] soc: nordic: nrf54h: generate PERIPHCONF entries based on devicetree

Upstream PR #: 95915

Add build system support for populating the PERIPHCONF
(global domain peripheral configuration), based on nodes and properties
found in the devicetree. This should make it so all samples and tests
that were broken by the move to IronSide SE now function correctly
without workarounds or manual steps.

When enabled, a new python script called gen_periphconf_entries.py is
run when building. The script iterates over nodes and properties in the
devicetree and generates a C file called periphconf_entries_generated.c
in the build directory, which is added as a source file. The C file
uses the macros from uicr.h to configure the global domain according
to the devicetree.

The PERIPHCONF entry generation is enabled by default when building
for nrf54h20dk/nrf54h20/cpuapp and nrf54h20dk/nrf54h20/cpurad.
It will also be used on nrf9280 soon, therefore it is placed
in the common uicr directory.

This new feature does the same job as nrf-regtool did when building
for nrf54h20 before, and is compatible by the bindings that were used
by nrf-regtool.

Signed-off-by: Jonathan Nilsen <[email protected]>

Author: jonathannilsen

soc/nordic/common/uicr/CMakeLists.txt

@@ -4,3 +4,18 @@
 if(CONFIG_NRF_PERIPHCONF_SECTION)
   zephyr_linker_sources(SECTIONS uicr.ld)
 endif()
+
+if(CONFIG_NRF_PERIPHCONF_GENERATE_ENTRIES)
+  set(periphconf_entries_c_file ${PROJECT_BINARY_DIR}/periphconf_entries_generated.c)
+  execute_process(
+    COMMAND
+      ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/gen_periphconf_entries.py
+      --soc ${CONFIG_SOC}
+      --in-edt-pickle ${EDT_PICKLE}
+      --out-periphconf-source ${periphconf_entries_c_file}
+    WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+    COMMAND_ERROR_IS_FATAL ANY
+  )
+  zephyr_sources(${periphconf_entries_c_file})
+  message(STATUS "Generated ${periphconf_entries_c_file} from ${EDT_PICKLE}")
+endif()

soc/nordic/common/uicr/Kconfig

@@ -9,3 +9,12 @@ config NRF_PERIPHCONF_SECTION
 	help
 	  Include static global domain peripheral initialization values from the
 	  build in a dedicated section in the devnull region.
+
+config NRF_PERIPHCONF_GENERATE_ENTRIES
+	bool "Generate PERIPHCONF entries source file"
+	default y if SOC_NRF54H20_CPUAPP || SOC_NRF54H20_CPURAD
+	depends on NRF_PERIPHCONF_SECTION
+	depends on NRF_PLATFORM_HALTIUM
+	help
+	  Generate a C file containing PERIPHCONF entries based on the
+	  device configuration in the devicetree.