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Added syn_useioff attribute support for Oxide toolchain and for the DDRTristate in Crosslink NX 

Signed-off-by: Maciej Kurc <mkurc@antmicro.com>
This commit is contained in:
Maciej Kurc 2021-09-20 10:57:20 +02:00
parent e8e14d8ca5
commit 6c0a758468
2 changed files with 2 additions and 0 deletions
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1
litex/build/lattice/common.py
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@ -309,6 +309,7 @@ class LatticeNXDDRTristateImpl(Module):
self.specials += SDROutput(oe1|oe2, _oe, clk) self.specials += SDROutput(oe1|oe2, _oe, clk)
self.specials += DDRInput(_i, o1, o2, clk) self.specials += DDRInput(_i, o1, o2, clk)
self.specials += Tristate(io, _o, _oe, _i) self.specials += Tristate(io, _o, _oe, _i)
_oe.attr.add("syn_useioff")
class LatticeNXDDRTristate: class LatticeNXDDRTristate:
@staticmethod @staticmethod

1
litex/build/lattice/oxide.py
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@ -108,6 +108,7 @@ def _run_script(script):
class LatticeOxideToolchain: class LatticeOxideToolchain:
attr_translate = { attr_translate = {
"keep": ("keep", "true"), "keep": ("keep", "true"),
"syn_useioff": ("syn_useioff", 1),
} }
special_overrides = common.lattice_NX_special_overrides_for_oxide special_overrides = common.lattice_NX_special_overrides_for_oxide