[rdl2ot] add UDPs to rdljson output

Signed-off-by: Douglas Reis <doreis@lowrisc.org>

Author: engdoreis

rdl2ot/src/rdl2ot/rtl_exporter.py

@@ -11,6 +11,7 @@
 from jinja2 import Environment, FileSystemLoader
 from systemrdl import node
 from systemrdl.rdltypes import OnReadType
+from systemrdl.rdltypes.user_struct import UserStruct
 
 from rdl2ot import opentitan
 
@@ -172,6 +173,9 @@ def get_mem(self, mem: node.FieldNode) -> dict:
         obj["offset"] = mem.address_offset
         obj["size"] = obj["width"] * obj["entries"] // 8
         obj["integrity_bypass"] = mem.get_property("integrity_bypass", default=False)
+        if udps := self.get_udps(mem):
+            obj["udps"] = udps
+
         self.all_async_clk &= bool(mem.get_property("async_clk", default=False))
         self.num_windows += 1
         return obj
@@ -243,6 +247,24 @@ def get_paramesters(self, obj: node.AddrmapNode | node.RegfileNode) -> [dict]:
             for param in obj.inst.parameters
         ]
 
+
+    def get_udps(self, obj: node.AddrmapNode | node.RegfileNode) -> [dict]:
+         """
+         Parse the customs properties and return a list of dictionaries.
+         """
+         udps = obj.list_properties(include_native=False)
+         if len(udps) < 1:
+             return None
+         res = {}
+         for name in udps:
+             udp = obj.get_property(name)
+             if isinstance(udp, list) and isinstance(udp[0], UserStruct):
+                 res.update({name: [dict(item.members) for item in udp ]})
+             else:
+                 res.update({name:  udp})
+
+         return res
+
     def get_interface(self, addrmap: node.AddrmapNode, defalt_name: None | str = None) -> dict:
         """Parse an interface and return a dictionary."""
         self.num_regs = 0
@@ -308,10 +330,12 @@ def get_interface(self, addrmap: node.AddrmapNode, defalt_name: None | str = Non
     def parse_ip_block(self, ip_block: node.AddrmapNode) -> dict:
         """Parse the ip_block node of an IP block and return a dictionary."""
         obj = {"name": ip_block.inst_name, "type": "device", "type_name": ip_block.type_name}
-        params = self.get_paramesters(ip_block)
-        if params:
+        if params:= self.get_paramesters(ip_block):
             obj["parameters"] = params
 
+        if udps := self.get_udps(ip_block):
+            obj["udps"] = udps
+
         obj["offsets"] = self.parse_array(ip_block)
         obj["size"] = ip_block.array_stride if ip_block.is_array else ip_block.size