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phy/usddrphy: simplify OSERDESE3/ISERDESE3 data mapping.

This commit is contained in:
Florent Kermarrec 2020-09-30 10:44:41 +02:00
parent 5d41cce080
commit 1d756cb209
1 changed files with 8 additions and 30 deletions
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36
litedram/phy/usddrphy.py
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@ -179,10 +179,7 @@ class USDDRPHY(Module, AutoCSR):
i_RST = ResetSignal() | self._rst.storage, i_RST = ResetSignal() | self._rst.storage,
i_CLK = ClockSignal("sys4x"), i_CLK = ClockSignal("sys4x"),
i_CLKDIV = ClockSignal(), i_CLKDIV = ClockSignal(),
i_D = Cat(dfi.phases[0].address[i], dfi.phases[0].address[i], i_D = Cat(*[dfi.phases[n//2].address[i] for n in range(8)]),
dfi.phases[1].address[i], dfi.phases[1].address[i],
dfi.phases[2].address[i], dfi.phases[2].address[i],
dfi.phases[3].address[i], dfi.phases[3].address[i]),
o_OQ = a_o_nodelay, o_OQ = a_o_nodelay,
), ),
Instance("ODELAYE3", Instance("ODELAYE3",
@ -222,11 +219,7 @@ class USDDRPHY(Module, AutoCSR):
i_RST = ResetSignal() | self._rst.storage, i_RST = ResetSignal() | self._rst.storage,
i_CLK = ClockSignal("sys4x"), i_CLK = ClockSignal("sys4x"),
i_CLKDIV = ClockSignal(), i_CLKDIV = ClockSignal(),
i_D = Cat( i_D = Cat(*[dfi.phases[n//2].bank[i] for n in range(8)]),
dfi.phases[0].bank[i], dfi.phases[0].bank[i],
dfi.phases[1].bank[i], dfi.phases[1].bank[i],
dfi.phases[2].bank[i], dfi.phases[2].bank[i],
dfi.phases[3].bank[i], dfi.phases[3].bank[i]),
o_OQ = ba_o_nodelay, o_OQ = ba_o_nodelay,
), ),
Instance("ODELAYE3", Instance("ODELAYE3",
@ -267,11 +260,7 @@ class USDDRPHY(Module, AutoCSR):
i_RST = ResetSignal() | self._rst.storage, i_RST = ResetSignal() | self._rst.storage,
i_CLK = ClockSignal("sys4x"), i_CLK = ClockSignal("sys4x"),
i_CLKDIV = ClockSignal(), i_CLKDIV = ClockSignal(),
i_D = Cat( i_D = Cat(*[getattr(dfi.phases[n//2], name) for n in range(8)]),
getattr(dfi.phases[0], name), getattr(dfi.phases[0], name),
getattr(dfi.phases[1], name), getattr(dfi.phases[1], name),
getattr(dfi.phases[2], name), getattr(dfi.phases[2], name),
getattr(dfi.phases[3], name), getattr(dfi.phases[3], name)),
o_OQ = x_o_nodelay, o_OQ = x_o_nodelay,
), ),
Instance("ODELAYE3", Instance("ODELAYE3",
@ -336,11 +325,7 @@ class USDDRPHY(Module, AutoCSR):
i_CLK = ClockSignal("sys4x"), i_CLK = ClockSignal("sys4x"),
i_CLKDIV = ClockSignal(), i_CLKDIV = ClockSignal(),
i_T = ~dqs_oe_delayed, i_T = ~dqs_oe_delayed,
i_D = Cat( i_D = Cat(*[dqs_pattern.o[n] for n in range(8)]),
dqs_pattern.o[0], dqs_pattern.o[1],
dqs_pattern.o[2], dqs_pattern.o[3],
dqs_pattern.o[4], dqs_pattern.o[5],
dqs_pattern.o[6], dqs_pattern.o[7]),
o_OQ = dqs_nodelay, o_OQ = dqs_nodelay,
o_T_OUT = dqs_t, o_T_OUT = dqs_t,
@ -387,11 +372,7 @@ class USDDRPHY(Module, AutoCSR):
i_RST = ResetSignal() | self._rst.storage, i_RST = ResetSignal() | self._rst.storage,
i_CLK = ClockSignal("sys4x"), i_CLK = ClockSignal("sys4x"),
i_CLKDIV = ClockSignal(), i_CLKDIV = ClockSignal(),
i_D = Cat( i_D = Cat(*[dfi.phases[n//2].wrdata_mask[n%2*databits//8+i] for n in range(8)]),
dfi.phases[0].wrdata_mask[i], dfi.phases[0].wrdata_mask[databits//8+i],
dfi.phases[1].wrdata_mask[i], dfi.phases[1].wrdata_mask[databits//8+i],
dfi.phases[2].wrdata_mask[i], dfi.phases[2].wrdata_mask[databits//8+i],
dfi.phases[3].wrdata_mask[i], dfi.phases[3].wrdata_mask[databits//8+i]),
o_OQ = dm_o_nodelay, o_OQ = dm_o_nodelay,
), ),
Instance("ODELAYE3", Instance("ODELAYE3",
@ -440,11 +421,7 @@ class USDDRPHY(Module, AutoCSR):
i_RST = ResetSignal() | self._rst.storage, i_RST = ResetSignal() | self._rst.storage,
i_CLK = ClockSignal("sys4x"), i_CLK = ClockSignal("sys4x"),
i_CLKDIV = ClockSignal(), i_CLKDIV = ClockSignal(),
i_D = Cat( i_D = Cat(*[dfi.phases[n//2].wrdata[n%2*databits+i] for n in range(8)]),
dfi.phases[0].wrdata[i], dfi.phases[0].wrdata[databits+i],
dfi.phases[1].wrdata[i], dfi.phases[1].wrdata[databits+i],
dfi.phases[2].wrdata[i], dfi.phases[2].wrdata[databits+i],
dfi.phases[3].wrdata[i], dfi.phases[3].wrdata[databits+i]),
i_T = ~dq_oe_delayed, i_T = ~dq_oe_delayed,
o_OQ = dq_o_nodelay, o_OQ = dq_o_nodelay,
o_T_OUT = dq_t, o_T_OUT = dq_t,
@ -506,6 +483,7 @@ class USDDRPHY(Module, AutoCSR):
io_IO = pads.dq[i], io_IO = pads.dq[i],
) )
] ]
self.comb += [ self.comb += [
dfi.phases[0].rddata[i].eq(dq_bitslip.o[0]), dfi.phases[0].rddata[i].eq(dq_bitslip.o[0]),
dfi.phases[1].rddata[i].eq(dq_bitslip.o[2]), dfi.phases[1].rddata[i].eq(dq_bitslip.o[2]),