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| author | David Shah <dave@ds0.me> | 2020-01-15 11:43:12 +0000 |
|---|---|---|
| committer | David Shah <dave@ds0.me> | 2020-01-15 11:43:12 +0000 |
| commit | f513d5fff41a180fdde7d19c8db0c688c656f183 (patch) | |
| tree | 90629e32204451c8c6522d3b11b37cd5052514f6 /ecp5/pio.cc | |
| parent | 92a2109f0c906504b8b7daa95b2a88943a59460d (diff) | |
| download | nextpnr-f513d5fff41a180fdde7d19c8db0c688c656f183.tar.gz nextpnr-f513d5fff41a180fdde7d19c8db0c688c656f183.tar.bz2 nextpnr-f513d5fff41a180fdde7d19c8db0c688c656f183.zip | |
ecp5: Add support for top pseudo diff outputs
Signed-off-by: David Shah <dave@ds0.me>
Diffstat (limited to 'ecp5/pio.cc')
| -rw-r--r-- | ecp5/pio.cc | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/ecp5/pio.cc b/ecp5/pio.cc index 65dcd704..5ff375e3 100644 --- a/ecp5/pio.cc +++ b/ecp5/pio.cc @@ -109,6 +109,7 @@ IOVoltage get_vccio(IOType type) case IOType::SSTL18D_II: return IOVoltage::VCC_1V8; case IOType::LVCMOS15: + case IOType::LVCMOS15D: case IOType::SSTL15_I: case IOType::SSTL15_II: case IOType::SSTL15D_I: @@ -120,6 +121,7 @@ IOVoltage get_vccio(IOType type) case IOType::SSTL135D_II: return IOVoltage::VCC_1V35; case IOType::LVCMOS12: + case IOType::LVCMOS12D: case IOType::HSUL12: case IOType::HSUL12D: return IOVoltage::VCC_1V2; @@ -159,6 +161,8 @@ bool is_differential(IOType type) switch (type) { case IOType::LVCMOS33D: case IOType::LVCMOS25D: + case IOType::LVCMOS15D: + case IOType::LVCMOS12D: case IOType::LVPECL33: case IOType::LVDS: case IOType::MLVDS25: @@ -207,7 +211,7 @@ bool valid_loc_for_io(IOType type, PortType dir, IOSide side, int z) bool is_lr = side == IOSide::LEFT || side == IOSide::RIGHT; if (is_referenced(type) && !is_lr) return false; - if (is_differential(type) && (!is_lr || ((z % 2) == 1))) + if (is_differential(type) && ((!is_lr && dir != PORT_OUT) || ((z % 2) == 1))) return false; if ((type == IOType::LVCMOS18D || type == IOType::LVDS) && (dir == PORT_OUT || dir == PORT_INOUT) && z != 0) return false; |