from migen.fhdl.std import *
from migen.bank.description import *

from misoclib.identifier import git

class Identifier(Module, AutoCSR):
	def __init__(self, sysid, frequency, l2_size, revision=None):
		self._sysid = CSRStatus(16)
		self._revision = CSRStatus(32)
		self._frequency = CSRStatus(32)
		self._l2_size = CSRStatus(8)

		###

		if revision is None:
			revision = git.get_id()

		self.comb += [
			self._sysid.status.eq(sysid),
			self._revision.status.eq(revision),
			self._frequency.status.eq(frequency),
			self._l2_size.status.eq(l2_size)
		]