36 lines
1.2 KiB
Python
36 lines
1.2 KiB
Python
from migen.fhdl.std import *
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from migen.flow.actor import Sink, Source
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from lib.sata.k7sataphy.std import *
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from lib.sata.k7sataphy.gtx import GTXE2_CHANNEL
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from lib.sata.k7sataphy.clocking import K7SATAPHYClocking
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from lib.sata.k7sataphy.ctrl import K7SATAPHYHostCtrl, K7SATAPHYDeviceCtrl
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class K7SATAPHY(Module):
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def __init__(self, pads, host=True):
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self.sink = Sink([("d", 32)], True)
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self.source = Source([("d", 32)], True)
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self.submodules.gtx = GTXE2_CHANNEL(pads, "SATA3")
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self.submodules.clocking = K7SATAPHYClocking(pads, self.gtx)
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if host:
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self.submodules.ctrl = K7SATAPHYHostCtrl(self.gtx)
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else:
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self.submodules.ctrl = K7SATAPHYDeviceCtrl(self.gtx)
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self.comb += [
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If(self.ctrl.link_up,
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self.gtx.sink.stb.eq(self.sink.stb),
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self.gtx.sink.data.eq(self.sink.d),
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self.gtx.sink.charisk.eq(0),
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self.sink.ack.eq(self.gtx.sink.ack),
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).Else(
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self.gtx.sink.stb.eq(1),
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self.gtx.sink.data.eq(self.ctrl.txdata),
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self.gtx.sink.charisk.eq(self.ctrl.txcharisk)
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),
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self.source.stb.eq(self.gtx.source.stb),
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self.source.payload.eq(self.gtx.source.payload),
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self.gtx.source.ack.eq(self.source.ack),
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self.ctrl.rxdata.eq(self.gtx.source.data)
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]
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