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Sebastien Bourdeauducq
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Mar 14, 2012
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from migen.fhdl.structure import * | ||
from migen.bus import dfi, asmibus | ||
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from milkymist.asmicon.refresher import * | ||
from milkymist.asmicon.bankmachine import * | ||
from milkymist.asmicon.multiplexer import * | ||
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class PhySettings: | ||
def __init__(self, dfi_a, dfi_ba, dfi_d, nphases, rdphase, wrphase): | ||
self.dfi_a = dfi_a | ||
self.dfi_ba = dfi_ba | ||
self.dfi_d = dfi_d | ||
self.nphases = nphases | ||
self.rdphase = rdphase | ||
self.wrphase = wrphase | ||
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class GeomSettings: | ||
def __init__(self, row_a, col_a): | ||
self.row_a = row_a | ||
self.col_a = col_a | ||
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class TimingSettings: | ||
def __init__(self, tREFI, tRFC): | ||
self.tREFI = tREFI | ||
self.tRFC = tRFC | ||
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class ASMIcon: | ||
def __init__(self, phy_settings, geom_settings, timing_settings, time=0): | ||
self.phy_settings = phy_settings | ||
self.geom_settings = geom_settings | ||
self.timing_settings = timing_settings | ||
self.finalized = False | ||
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self.dfi = dfi.Interface(self.phy_settings.dfi_a, | ||
self.phy_settings.dfi_ba, | ||
self.phy_settings.dfi_d, | ||
self.phy_settings.nphases) | ||
burst_length = self.phy_settings.nphases*2 | ||
self.address_align = log2_int(burst_length) | ||
aw = self.phy_settings.dfi_ba + self.geom_settings.row_a + self.geom_settings.col_a - self.address_align | ||
dw = self.phy_settings.dfi_d*self.phy_settings.nphases | ||
self.hub = asmibus.Hub(aw, dw, time) | ||
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def finalize(self): | ||
if self.finalized: | ||
raise FinalizeError | ||
self.finalized = True | ||
self.hub.finalize() | ||
slots = self.hub.get_slots() | ||
self.refresher = Refresher(self.timing_settings) | ||
self.bank_machines = [BankMachine(self.geom_settings, self.timing_settings, self.address_align, i, slots) for i in range(2**self.phy_settings.dfi_ba)] | ||
self.multiplexer = Multiplexer(self.phy_settings, self.geom_settings, self.timing_settings, | ||
self.bank_machines, self.refresher, | ||
self.dfi, self.hub) | ||
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def get_fragment(self): | ||
if not self.finalized: | ||
raise FinalizeError | ||
return self.hub.get_fragment() + \ | ||
self.refresher.get_fragment() + \ | ||
sum([bm.get_fragment() for bm in self.bank_machines], Fragment()) + \ | ||
self.multiplexer.get_fragment() |
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from migen.fhdl.structure import * | ||
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class BankMachine: | ||
def __init__(self, geom_settings, timing_settings, address_align, bankn, slots): | ||
pass | ||
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def get_fragment(self): | ||
return Fragment() |
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Original file line number | Diff line number | Diff line change |
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from migen.fhdl.structure import * | ||
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class Multiplexer: | ||
def __init__(self, phy_settings, geom_settings, timing_settings, bank_machines, refresher, dfi, hub): | ||
pass | ||
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def get_fragment(self): | ||
return Fragment() |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,8 @@ | ||
from migen.fhdl.structure import * | ||
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class Refresher: | ||
def __init__(self, timing_settings): | ||
pass | ||
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def get_fragment(self): | ||
return Fragment() |
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