wip: board configuration

Author: robtaylor

chipflow_lib/__init__.py

@@ -7,6 +7,7 @@
 import sys
 import tomli
 from pathlib import Path
+
 from pydantic import ValidationError
 
 __version__ = importlib.metadata.version("chipflow_lib")
@@ -64,3 +65,5 @@ def _parse_config_file(config_file):
 
         error_str = "\n".join(error_messages)
         raise ChipFlowError(f"Validation error in chipflow.toml:\n{error_str}")
+
+

chipflow_lib/config_models.py

@@ -58,6 +58,13 @@ def validate_pad_dicts(cls, v, info: ValidationInfo):
         return v
 
 
+class BoardType(BaseModel):
+    """Configuration for silicon in chipflow.toml."""
+    board_name: Literal["ULX3S"]
+    board_type: Literal["85F"]
+
+
+
 class StepsConfig(BaseModel):
     """Configuration for steps in chipflow.toml."""
     silicon: str
@@ -69,6 +76,7 @@ class ChipFlowConfig(BaseModel):
     top: Dict[str, Any] = {}
     steps: StepsConfig
     silicon: SiliconConfig
+    board: BoardConfig
     clocks: Optional[Dict[str, str]] = None
     resets: Optional[Dict[str, str]] = None