integration/common: Add get_boot_address to get CPU boot address from json file.
Will allow litex_sim to use similar .json files than the ones used on hardware.
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@ -19,8 +19,7 @@ def get_version(with_time=True):
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fmt = "%Y-%m-%d %H:%M:%S" if with_time else "%Y-%m-%d"
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fmt = "%Y-%m-%d %H:%M:%S" if with_time else "%Y-%m-%d"
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return datetime.datetime.fromtimestamp(time.time()).strftime(fmt)
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return datetime.datetime.fromtimestamp(time.time()).strftime(fmt)
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def get_mem_data(filename_or_regions, endianness="big", mem_size=None, offset=0):
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def get_mem_regions(filename_or_regions, offset):
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# Create memory regions.
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if isinstance(filename_or_regions, dict):
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if isinstance(filename_or_regions, dict):
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regions = filename_or_regions
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regions = filename_or_regions
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else:
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else:
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@ -38,13 +37,18 @@ def get_mem_data(filename_or_regions, endianness="big", mem_size=None, offset=0)
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f.close()
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f.close()
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else:
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else:
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regions = {filename: f"{offset:08x}"}
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regions = {filename: f"{offset:08x}"}
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return regions
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def get_mem_data(filename_or_regions, endianness="big", mem_size=None, offset=0):
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# Create memory regions.
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regions = get_mem_regions(filename_or_regions, offset)
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# Determine data_size.
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# Determine data_size.
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data_size = 0
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data_size = 0
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for filename, base in regions.items():
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for filename, base in regions.items():
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if not os.path.isfile(filename):
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if not os.path.isfile(filename):
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raise OSError(f"Unable to find {filename} memory content file.")
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raise OSError(f"Unable to find {filename} memory content file.")
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data_size = max(int(base, 16) + os.path.getsize(filename), data_size)
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data_size = max(int(base, 16) + os.path.getsize(filename) - offset, data_size)
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assert data_size > 0
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assert data_size > 0
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if mem_size is not None:
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if mem_size is not None:
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assert data_size < mem_size, (
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assert data_size < mem_size, (
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@ -71,3 +75,13 @@ def get_mem_data(filename_or_regions, endianness="big", mem_size=None, offset=0)
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data[(base - offset)//4 + i] = struct.unpack(unpack_order, w)[0]
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data[(base - offset)//4 + i] = struct.unpack(unpack_order, w)[0]
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i += 1
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i += 1
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return data
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return data
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def get_boot_address(filename_or_regions, offset=0):
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# Create memory regions.
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regions = get_mem_regions(filename_or_regions, offset)
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print(regions)
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# Boot on last region.
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filename, base = regions.popitem()
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return int(base, 0)
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