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Dev/downsize apb paddr (#27)

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* Downsize paddr bits

* Updated Test suite to use offset aligned address

* fix for apb3 and axi4lite

* modified structure to pass hierarchy information

---------

Co-authored-by: Byron Lathi <bslathi19@gmail.com>
This commit is contained in:
Arnav Sacheti
2025-12-04 21:31:44 -08:00
committed by GitHub
parent 9f41487430
commit c63b2cbab2
16 changed files with 89 additions and 26 deletions
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12
tests/cocotb/apb4/smoke/test_register_access.py
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@@ -3,6 +3,7 @@
from __future__ import annotations
import json
import logging
import os
from typing import Any, Iterable
@@ -71,6 +72,8 @@ def _build_master_table(dut, masters_cfg: list[dict[str, Any]]) -> dict[str, dic
"PREADY": SignalHandle(dut, f"{port_prefix}_PREADY"),
"PSLVERR": SignalHandle(dut, f"{port_prefix}_PSLVERR"),
},
"inst_size": master["inst_size"],
"inst_address": master["inst_address"],
}
table[master["inst_name"]] = entry
return table
@@ -138,11 +141,16 @@ async def test_apb4_address_decoding(dut) -> None:
slave.PSEL.value = 1
slave.PENABLE.value = 1
dut._log.info(
f"Starting transaction {txn['label']} to {master_name}{index} at address 0x{address:08X}"
)
master_address = (address - entry["inst_address"]) % entry["inst_size"]
await Timer(1, units="ns")
assert _get_int(entry["outputs"]["PSEL"], index) == 1, f"{master_name} should assert PSEL for write"
assert _get_int(entry["outputs"]["PWRITE"], index) == 1, f"{master_name} should see write intent"
assert _get_int(entry["outputs"]["PADDR"], index) == address, (
assert _get_int(entry["outputs"]["PADDR"], index) == master_address, (
f"{master_name} must receive write address"
)
assert _get_int(entry["outputs"]["PWDATA"], index) == write_data, (
@@ -189,7 +197,7 @@ async def test_apb4_address_decoding(dut) -> None:
assert _get_int(entry["outputs"]["PWRITE"], index) == 0, (
f"{master_name} should deassert write for reads"
)
assert _get_int(entry["outputs"]["PADDR"], index) == address, (
assert _get_int(entry["outputs"]["PADDR"], index) == master_address, (
f"{master_name} must receive read address"
)