fix ruche connection on the east row edge (#510)

bespoke-silicon-group · Apr 16, 2021 · 3acb35f · 3acb35f
1 parent 567a984
commit 3acb35f
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Showing 2 changed files with 8 additions and 32 deletions.
diff --git a/testbenches/common/v/bsg_nonsynth_manycore_testbench.v b/testbenches/common/v/bsg_nonsynth_manycore_testbench.v
@@ -672,40 +672,16 @@ module bsg_nonsynth_manycore_testbench
   // RUCHE LINK TIEOFF (west)
   for (genvar j = 0; j < num_pods_y_p; j++) begin
     for (genvar k = 0; k < num_tiles_y_p; k++) begin
-      bsg_manycore_ruche_x_link_sif_tieoff #(
-        .addr_width_p(addr_width_p)
-        ,.data_width_p(data_width_p)
-        ,.x_cord_width_p(x_cord_width_p)
-        ,.y_cord_width_p(y_cord_width_p)
-        ,.ruche_stage_p(0)
-        ,.ruche_factor_X_p(ruche_factor_X_p)
-        ,.west_not_east_p(1)
-      ) rw_tieoff (
-        .clk_i(clk_i)
-        ,.reset_i(reset_r)
-        ,.ruche_link_i(~ruche_link_lo[W][j][k]) // put it in the correct phase.
-        ,.ruche_link_o(ruche_link_li[W][j][k])
-      );
+      // hard coded for ruche factor 3
+      assign ruche_link_li[W][j][k] = '0;
     end
   end
 
   // RUCHE LINK TIEOFF (east)
   for (genvar j = 0; j < num_pods_y_p; j++) begin
     for (genvar k = 0; k < num_tiles_y_p; k++) begin
-      bsg_manycore_ruche_x_link_sif_tieoff #(
-        .addr_width_p(addr_width_p)
-        ,.data_width_p(data_width_p)
-        ,.x_cord_width_p(x_cord_width_p)
-        ,.y_cord_width_p(y_cord_width_p)
-        ,.ruche_stage_p(2)
-        ,.ruche_factor_X_p(ruche_factor_X_p)
-        ,.west_not_east_p(0)
-      ) re_tieoff (
-        .clk_i(clk_i)
-        ,.reset_i(reset_r)
-        ,.ruche_link_i(ruche_link_lo[E][j][k])
-        ,.ruche_link_o(ruche_link_li[E][j][k])
-      );
+      // hard coded for ruche factor 3
+      assign ruche_link_li[E][j][k] = '0;
     end
   end
 

diff --git a/v/bsg_manycore_pod_ruche_row.v b/v/bsg_manycore_pod_ruche_row.v
@@ -225,12 +225,12 @@ module bsg_manycore_pod_ruche_row
     assign ruche_link_li[0][W][y][2] = '1; // tieoff
 
     // connect manycore ruche to east
-    assign ruche_link_li[num_pods_x_p-1][E][y][2] = ruche_link_i[E][y];
-    assign ruche_link_o[E][y] = ruche_link_lo[num_pods_x_p-1][E][y][2];
+    assign ruche_link_li[num_pods_x_p-1][E][y][0] = ruche_link_i[E][y];
+    assign ruche_link_o[E][y] = ruche_link_lo[num_pods_x_p-1][E][y][0];
 
     // tieoff east manycore ruche
-    assign ruche_link_li[num_pods_x_p-1][E][y][0] = '1;
-    assign ruche_link_li[num_pods_x_p-1][E][y][1] = '0;
+    assign ruche_link_li[num_pods_x_p-1][E][y][1] = '1;
+    assign ruche_link_li[num_pods_x_p-1][E][y][2] = '0;
   end
 
   // connect wormhole ruche links to the outside