Hardware
/
litedram
mirror of https://github.com/enjoy-digital/litedram.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #76 from daveshah1/trellis_io 

ecp5ddrphy: Use triples for inputs to fix build with TRELLIS_IOs
This commit is contained in:
enjoy-digital 2019-02-25 19:26:45 +01:00 committed by GitHub
parent 9057f510d2 691d9308b2
commit 6715c1bd45
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
litedram/phy/ecp5ddrphy.py
View File

@ -275,6 +275,7 @@ class ECP5DDRPHY(Module, AutoCSR):
dqs_read = Signal() dqs_read = Signal()
for i in range(databits//8): for i in range(databits//8):
# DQSBUFM # DQSBUFM
dqs_i = Signal()
dqsr90 = Signal() dqsr90 = Signal()
dqsw270 = Signal() dqsw270 = Signal()
dqsw = Signal() dqsw = Signal()
@ -318,7 +319,7 @@ class ECP5DDRPHY(Module, AutoCSR):
i_READCLKSEL0=rdly[0], i_READCLKSEL0=rdly[0],
i_READCLKSEL1=rdly[1], i_READCLKSEL1=rdly[1],
i_READCLKSEL2=rdly[2], i_READCLKSEL2=rdly[2],
i_DQSI=pads.dqs_p[i], i_DQSI=dqs_i,
o_DQSR90=dqsr90, o_DQSR90=dqsr90,
o_RDPNTR0=rdpntr[0], o_RDPNTR0=rdpntr[0],
o_RDPNTR1=rdpntr[1], o_RDPNTR1=rdpntr[1],
@ -389,7 +390,7 @@ class ECP5DDRPHY(Module, AutoCSR):
i_RST=ResetSignal("sys2x"), i_RST=ResetSignal("sys2x"),
o_Q=dqs_oe_n, o_Q=dqs_oe_n,
) )
self.specials += Tristate(pads.dqs_p[i], dqs, ~dqs_oe_n) self.specials += Tristate(pads.dqs_p[i], dqs, ~dqs_oe_n, dqs_i)
for j in range(8*i, 8*(i+1)): for j in range(8*i, 8*(i+1)):
dq_o = Signal() dq_o = Signal()
@ -427,7 +428,7 @@ class ECP5DDRPHY(Module, AutoCSR):
) )
self.specials += \ self.specials += \
Instance("DELAYF", Instance("DELAYF",
i_A=pads.dq[j], i_A=dq_i,
i_LOADN=1, i_LOADN=1,
i_MOVE=0, i_MOVE=0,
i_DIRECTION=0, i_DIRECTION=0,
@ -481,7 +482,7 @@ class ECP5DDRPHY(Module, AutoCSR):
i_RST=ResetSignal("sys2x"), i_RST=ResetSignal("sys2x"),
o_Q=dq_oe_n, o_Q=dq_oe_n,
) )
self.specials += Tristate(pads.dq[j], dq_o, ~dq_oe_n) self.specials += Tristate(pads.dq[j], dq_o, ~dq_oe_n, dq_i)
# Flow control ----------------------------------------------------------------------------- # Flow control -----------------------------------------------------------------------------
# #