soc: nordic: uicr: Populate UICR.VERSION field in gen_uicr.py

Set the VERSION field to 2.0 in gen_uicr.py to indicate the version of
the format the script produces blobs for. This is required for forwards
compatibility with newer versions of IronSide SE.

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

Author: jonathannilsen

soc/nordic/common/uicr/gen_uicr.py

@@ -17,6 +17,10 @@
 from elftools.elf.elffile import ELFFile
 from intelhex import IntelHex
 
+# The UICR format version produced by this script
+UICR_FORMAT_VERSION_MAJOR = 2
+UICR_FORMAT_VERSION_MINOR = 0
+
 # Name of the ELF section containing PERIPHCONF entries.
 # Must match the name used in the linker script.
 PERIPHCONF_SECTION = "uicr_periphconf_entry"
@@ -45,6 +49,14 @@ class PeriphconfEntry(c.LittleEndianStructure):
 PERIPHCONF_ENTRY_SIZE = c.sizeof(PeriphconfEntry)
 
 
+class Version(c.LittleEndianStructure):
+    _pack_ = 1
+    _fields_ = [
+        ("MINOR", c.c_uint16),
+        ("MAJOR", c.c_uint16),
+    ]
+
+
 class Approtect(c.LittleEndianStructure):
     _pack_ = 1
     _fields_ = [
@@ -104,7 +116,7 @@ class Mpcconf(c.LittleEndianStructure):
 class Uicr(c.LittleEndianStructure):
     _pack_ = 1
     _fields_ = [
-        ("VERSION", c.c_uint32),
+        ("VERSION", Version),
         ("RESERVED", c.c_uint32),
         ("LOCK", c.c_uint32),
         ("RESERVED1", c.c_uint32),
@@ -171,6 +183,9 @@ def main() -> None:
         init_values = DISABLED_VALUE.to_bytes(4, "little") * (c.sizeof(Uicr) // 4)
         uicr = Uicr.from_buffer_copy(init_values)
 
+        uicr.VERSION.MAJOR = UICR_FORMAT_VERSION_MAJOR
+        uicr.VERSION.MINOR = UICR_FORMAT_VERSION_MINOR
+
         kconfig_str = args.in_config.read()
         kconfig = parse_kconfig(kconfig_str)