synth_intel: Remove incomplete Arria 10 GX support.

The techmap rules for this target do not work in the first place (note
lack of >2-input LUT mappings), and if proper support is ever added,
it'd be better placed in the synth_intel_alm backend.

3 files changed, 0 insertions, 184 deletions

diff --git a/techlibs/intel/arria10gx/cells_arith.v b/techlibs/intel/arria10gx/cells_arith.v
deleted file mode 100644
index 6a52a0f95..000000000
--- a/techlibs/intel/arria10gx/cells_arith.v
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- *  yosys -- Yosys Open SYnthesis Suite
- *
- *  Copyright (C) 2012  Clifford Wolf <clifford@clifford.at>
- *
- *  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.
- *
- */
-
-// NOTE: This is still WIP.
-(* techmap_celltype = "$alu" *)
-module _80_altera_a10gx_alu (A, B, CI, BI, X, Y, CO);
-   parameter A_SIGNED = 0;
-   parameter B_SIGNED = 0;
-   parameter A_WIDTH  = 1;
-   parameter B_WIDTH  = 1;
-   parameter Y_WIDTH  = 1;
-
-	(* force_downto *)
-	input [A_WIDTH-1:0] A;
-	(* force_downto *)
-	input [B_WIDTH-1:0] B;
-	(* force_downto *)
-	output [Y_WIDTH-1:0] X, Y;
-
-	input CI, BI;
-	//output [Y_WIDTH-1:0] CO;
-        output                 CO;
-
-	wire _TECHMAP_FAIL_ = Y_WIDTH <= 4;
-
-	(* force_downto *)
-	wire [Y_WIDTH-1:0] A_buf, B_buf;
-	\$pos #(.A_SIGNED(A_SIGNED), .A_WIDTH(A_WIDTH), .Y_WIDTH(Y_WIDTH)) A_conv (.A(A), .Y(A_buf));
-	\$pos #(.A_SIGNED(B_SIGNED), .A_WIDTH(B_WIDTH), .Y_WIDTH(Y_WIDTH)) B_conv (.A(B), .Y(B_buf));
-
-	(* force_downto *)
-	wire [Y_WIDTH-1:0] AA = A_buf;
-	(* force_downto *)
-	wire [Y_WIDTH-1:0] BB = BI ? ~B_buf : B_buf;
-	//wire [Y_WIDTH:0] C = {CO, CI};
-        wire [Y_WIDTH+1:0] COx;
-        wire [Y_WIDTH+1:0] C = {COx, CI};
-
-	/* Start implementation */
-	(* keep *) fiftyfivenm_lcell_comb #(.lut_mask(16'b0000_0000_1010_1010), .sum_lutc_input("cin")) carry_start (.cout(COx[0]), .dataa(C[0]), .datab(1'b1), .datac(1'b1), .datad(1'b1));
-
-	genvar i;
-	generate for (i = 0; i < Y_WIDTH; i = i + 1) begin: slice
-	  if(i==Y_WIDTH-1) begin
-	    (* keep *) fiftyfivenm_lcell_comb #(.lut_mask(16'b1111_0000_1110_0000), .sum_lutc_input("cin")) carry_end (.combout(COx[Y_WIDTH]), .dataa(1'b1), .datab(1'b1), .datac(1'b1), .datad(1'b1), .cin(C[Y_WIDTH]));
-            assign CO = COx[Y_WIDTH];
-          end
-	  else
-	    fiftyfivenm_lcell_comb #(.lut_mask(16'b1001_0110_1110_1000), .sum_lutc_input("cin")) arith_cell (.combout(Y[i]), .cout(COx[i+1]), .dataa(AA[i]), .datab(BB[i]), .datac(1'b1), .datad(1'b1), .cin(C[i+1]));
-	  end: slice
-	endgenerate
-	/* End implementation */
-	assign X = AA ^ BB;
-
-endmodule
diff --git a/techlibs/intel/arria10gx/cells_map.v b/techlibs/intel/arria10gx/cells_map.v
deleted file mode 100644
index 83f5881da..000000000
--- a/techlibs/intel/arria10gx/cells_map.v
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- *  yosys -- Yosys Open SYnthesis Suite
- *
- *  Copyright (C) 2012  Clifford Wolf <clifford@clifford.at>
- *
- *  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.
- *
- */
-// Input buffer map
-module \$__inpad (input I, output O);
-    twentynm_io_ibuf _TECHMAP_REPLACE_ (.o(O), .i(I), .ibar(1'b0));
-endmodule
-
-// Output buffer map
-module \$__outpad (input I, output O);
-    twentynm_io_obuf _TECHMAP_REPLACE_ (.o(O), .i(I), .oe(1'b1));
-endmodule
-
-// LUT Map
-module \$lut (A, Y);
-   parameter WIDTH  = 0;
-   parameter LUT    = 0;
-   (* force_downto *)
-   input [WIDTH-1:0] A;
-   output            Y;
-   generate
-      if (WIDTH == 1) begin
-	   assign Y = ~A[0]; // Not need to spend 1 logic cell for such an easy function
-      end else
-      if (WIDTH == 2) begin
-           twentynm_lcell_comb #(.lut_mask({16{LUT}}), .shared_arith("off"), .extended_lut("off"))
-           _TECHMAP_REPLACE_ (.combout(Y), .dataa(A[0]), .datab(A[1]), .datac(1'b1),.datad(1'b1), .datae(1'b1), .dataf(1'b1), .datag(1'b1));
-      end /*else
-      if(WIDTH == 3) begin
-	   fiftyfivenm_lcell_comb #(.lut_mask({2{LUT}}), .sum_lutc_input("datac")) _TECHMAP_REPLACE_ (.combout(Y), .dataa(A[0]), .datab(A[1]), .datac(A[2]),.datad(1'b1));
-      end else
-      if(WIDTH == 4) begin
-	   fiftyfivenm_lcell_comb #(.lut_mask(LUT), .sum_lutc_input("datac")) _TECHMAP_REPLACE_ (.combout(Y), .dataa(A[0]), .datab(A[1]), .datac(A[2]),.datad(A[3]));
-      end*/ else
-	   wire _TECHMAP_FAIL_ = 1;
-   endgenerate
-endmodule //
-
-
diff --git a/techlibs/intel/arria10gx/cells_sim.v b/techlibs/intel/arria10gx/cells_sim.v
deleted file mode 100644
index e892b377e..000000000
--- a/techlibs/intel/arria10gx/cells_sim.v
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- *  yosys -- Yosys Open SYnthesis Suite
- *
- *  Copyright (C) 2012  Clifford Wolf <clifford@clifford.at>
- *
- *  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.
- *
- */
-module VCC (output V);
-   assign V = 1'b1;
-endmodule // VCC
-
-module GND (output G);
-   assign G = 1'b0;
-endmodule // GND
-
-/* Altera Arria 10 GX devices Input Buffer Primitive */
-module twentynm_io_ibuf (output o, input i, input ibar);
-   assign ibar = ibar;
-   assign o    = i;
-endmodule // twentynm_io_ibuf
-
-/* Altera Arria 10 GX  devices Output Buffer Primitive */
-module twentynm_io_obuf (output o, input i, input oe);
-   assign o  = i;
-   assign oe = oe;
-endmodule // twentynm_io_obuf
-
-/* Altera Arria 10 GX  LUT Primitive */
-module twentynm_lcell_comb (output combout, cout, sumout,
-                            input  dataa, datab, datac, datad,
-                            input  datae, dataf, datag, cin,
-                            input  sharein);
-
-parameter lut_mask      = 64'hFFFFFFFFFFFFFFFF;
-parameter dont_touch    = "off";
-parameter lpm_type      = "twentynm_lcell_comb";
-parameter shared_arith  = "off";
-parameter extended_lut  = "off";
-
-// TODO: This is still WIP
-initial begin
-  $display("Simulation model is still under investigation\n");
-end
-
-endmodule // twentynm_lcell_comb
-
-
-