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machxo2: synth_machxo2 now maps ports to FACADE_IO.

This commit is contained in:
William D. Jones 2020-11-26 13:39:40 -05:00 committed by Marcelina Kościelnicka
parent 03cbf1327d
commit c76f361b56
2 changed files with 12 additions and 0 deletions
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7
techlibs/machxo2/cells_map.v
View File

@ -24,4 +24,11 @@ module \$lut (A, Y);
LUT4 #(.INIT({rep{LUT}})) _TECHMAP_REPLACE_ (.A(I[0]), .B(I[1]), .C(I[2]), .D(I[3]), .Z(Y));
endmodule
// DFFs
module \$_DFF_P_ (input D, C, output Q); FACADE_FF #(.CEMUX("1"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("RESET")) _TECHMAP_REPLACE_ (.CLK(C), .LSR(1'b0), .DI(D), .Q(Q)); endmodule
// IO- "$__" cells for the iopadmap pass.
module \$__FACADE_OUTPAD (input I, output O); FACADE_IO #(.DIR("OUTPUT")) _TECHMAP_REPLACE_ (.PAD(O), .I(I), .EN(1'b1)); endmodule
module \$__FACADE_INPAD (input I, output O); FACADE_IO #(.DIR("INPUT")) _TECHMAP_REPLACE_ (.PAD(I), .O(O)); endmodule
module \$__FACADE_TOUTPAD (input I, OE, output O); FACADE_IO #(.DIR("OUTPUT")) _TECHMAP_REPLACE_ (.PAD(O), .I(I), .EN(OE)); endmodule
module \$__FACADE_TINOUTPAD (input I, OE, output O, inout B); FACADE_IO #(.DIR("BIDIR")) _TECHMAP_REPLACE_ (.PAD(B), .I(I), .O(O), .EN(OE)); endmodule

5
techlibs/machxo2/synth_machxo2.cc
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@ -173,6 +173,11 @@ struct SynthMachXO2Pass : public ScriptPass
run("opt -fast");
}
if (check_label("map_ios"))
{
run("iopadmap -bits -outpad $__FACADE_OUTPAD I:O -inpad $__FACADE_INPAD O:I -toutpad $__FACADE_TOUTPAD OE:I:O -tinoutpad $__FACADE_TINOUTPAD OE:O:I:B A:top");
}
if (check_label("map_ffs"))
{
run("dfflegalize -cell $_DFF_P_ 0");