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phy: replace wdly_dqs_taps with half_sys8x_taps (similar to what is implemented on 7-series)

This commit is contained in:
Florent Kermarrec 2018-12-17 11:42:13 +01:00
parent 28b7d3264c
commit 83f763f7b8
1 changed files with 4 additions and 3 deletions
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7
litedram/phy/kusddrphy.py
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@ -73,6 +73,8 @@ class KUSDDRPHY(Module, AutoCSR):
self._en_vtc = CSRStorage(reset=1) self._en_vtc = CSRStorage(reset=1)
self._half_sys8x_taps = CSRStatus(9)
self._wlevel_en = CSRStorage() self._wlevel_en = CSRStorage()
self._wlevel_strobe = CSR() self._wlevel_strobe = CSR()
@ -87,7 +89,6 @@ class KUSDDRPHY(Module, AutoCSR):
self._wdly_dq_inc = CSR() self._wdly_dq_inc = CSR()
self._wdly_dqs_rst = CSR() self._wdly_dqs_rst = CSR()
self._wdly_dqs_inc = CSR() self._wdly_dqs_inc = CSR()
self._wdly_dqs_taps = CSRStatus(9)
# compute phy settings # compute phy settings
cl, cwl = get_cl_cw(memtype, tck) cl, cwl = get_cl_cw(memtype, tck)
@ -294,7 +295,7 @@ class KUSDDRPHY(Module, AutoCSR):
self.sync += \ self.sync += \
If(dqs_taps_timer.done, If(dqs_taps_timer.done,
dqs_taps_done.eq(1), dqs_taps_done.eq(1),
self._wdly_dqs_taps.status.eq(dqs_taps) self._half_sys8x_taps.status.eq(dqs_taps)
) )
self.specials += [ self.specials += [
Instance("OSERDESE3", Instance("OSERDESE3",
@ -313,7 +314,7 @@ class KUSDDRPHY(Module, AutoCSR):
Instance("ODELAYE3", Instance("ODELAYE3",
p_CASCADE="NONE", p_UPDATE_MODE="ASYNC", p_REFCLK_FREQUENCY=200.0, p_CASCADE="NONE", p_UPDATE_MODE="ASYNC", p_REFCLK_FREQUENCY=200.0,
p_IS_CLK_INVERTED=0, p_IS_RST_INVERTED=0, p_IS_CLK_INVERTED=0, p_IS_RST_INVERTED=0,
p_DELAY_FORMAT="TIME", p_DELAY_TYPE="VARIABLE", p_DELAY_VALUE=500, p_DELAY_FORMAT="TIME", p_DELAY_TYPE="VARIABLE", p_DELAY_VALUE=int(tck*1e12/4),
i_CLK=ClockSignal(), i_CLK=ClockSignal(),
i_INC=1, i_EN_VTC=self._en_vtc.storage, i_INC=1, i_EN_VTC=self._en_vtc.storage,