From 879ac39e53c76558766460cfa948d97227119f37 Mon Sep 17 00:00:00 2001 From: gatecat Date: Sat, 8 May 2021 11:00:58 +0100 Subject: mistral: Renamed arch from cyclonev Signed-off-by: gatecat --- mistral/io.cc | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 mistral/io.cc (limited to 'mistral/io.cc') diff --git a/mistral/io.cc b/mistral/io.cc new file mode 100644 index 00000000..f2517e5d --- /dev/null +++ b/mistral/io.cc @@ -0,0 +1,53 @@ +/* + * nextpnr -- Next Generation Place and Route + * + * Copyright (C) 2021 gatecat + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ + +#include "log.h" +#include "nextpnr.h" +#include "util.h" + +NEXTPNR_NAMESPACE_BEGIN + +void Arch::create_gpio(int x, int y) +{ + for (int z = 0; z < 4; z++) { + // Notional pad wire + WireId pad = add_wire(x, y, id(stringf("PAD[%d]", z))); + BelId bel = add_bel(x, y, id(stringf("IO[%d]", z)), id_MISTRAL_IO); + add_bel_pin(bel, id_PAD, PORT_INOUT, pad); + // FIXME: is the port index of zero always correct? + add_bel_pin(bel, id_I, PORT_IN, get_port(CycloneV::GPIO, x, y, z, CycloneV::DATAIN, 0)); + add_bel_pin(bel, id_OE, PORT_IN, get_port(CycloneV::GPIO, x, y, z, CycloneV::OEIN, 0)); + add_bel_pin(bel, id_O, PORT_OUT, get_port(CycloneV::GPIO, x, y, z, CycloneV::DATAOUT, 0)); + } +} + +bool Arch::is_io_cell(IdString cell_type) const +{ + // Return true if a cell is an IO buffer cell type + switch (cell_type.index) { + case ID_MISTRAL_IB: + case ID_MISTRAL_OB: + case ID_MISTRAL_IO: + return true; + default: + return false; + } +} + +NEXTPNR_NAMESPACE_END \ No newline at end of file -- cgit v1.2.3