27 lines
597 B
Python
27 lines
597 B
Python
import subprocess
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from migen.fhdl.std import *
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from migen.bank.description import *
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def get_id():
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output = subprocess.check_output(["git", "rev-parse", "HEAD"]).decode("ascii")
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return int(output[:8], 16)
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class Identifier(Module, AutoCSR):
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def __init__(self, sysid, frequency, revision=None):
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self._r_sysid = CSRStatus(16)
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self._r_revision = CSRStatus(32)
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self._r_frequency = CSRStatus(32)
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###
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if revision is None:
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revision = get_id()
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self.comb += [
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self._r_sysid.status.eq(sysid),
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self._r_revision.status.eq(revision),
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self._r_frequency.status.eq(frequency),
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]
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