quicklogic: Set initial values on inferred TDP36K

YosysHQ · Nov 27, 2023 · 53bda48 · 53bda48
1 parent 5bc587c
commit 53bda48
Showing 1 changed file with 27 additions and 2 deletions.
diff --git a/techlibs/quicklogic/qlf_k6n10f/libmap_brams_map.v b/techlibs/quicklogic/qlf_k6n10f/libmap_brams_map.v
@@ -59,6 +59,18 @@ default: mode = 3'b000;
 endcase
 endfunction
 
+function [36863:0] pack_init;
+	integer i;
+	reg [35:0] ri;
+	for (i = 0; i < (OPTION_SPLIT ? 512 : 1024); i = i + 1) begin
+		ri = INIT[i*36 +: 36];
+		pack_init[i*36 +: 36] = {ri[35], ri[26], ri[34:27], ri[25:18],
+								 ri[17], ri[8], ri[16:9], ri[7:0]};
+	end
+	if (OPTION_SPLIT)
+		pack_init[36863:18432] = 18432'bx;
+endfunction
+
 wire REN_A1_i;
 wire REN_A2_i;
 
@@ -152,7 +164,9 @@ defparam _TECHMAP_REPLACE_.MODE_BITS = { 1'b0,
 (* is_split = 0 *)
 (* port_a_width = PORT_A_WIDTH *)
 (* port_b_width = PORT_B_WIDTH *)
-TDP36K _TECHMAP_REPLACE_ (
+TDP36K #(
+	.RAM_INIT(pack_init()),
+) _TECHMAP_REPLACE_ (
 	.RESET_ni(1'b1),
 
 	.CLK_A1_i(PORT_A_CLK),
@@ -274,6 +288,15 @@ default: mode = 3'b000;
 endcase
 endfunction
 
+function [36863:0] pack_init;
+	integer i;
+	reg [35:0] ri;
+	for (i = 0; i < 1024; i = i + 1) begin
+		ri = {INIT2[i*18 +: 18], INIT1[i*18 +: 18]};
+		pack_init[i*36 +: 36] = {ri[35], ri[26], ri[34:27], ri[25:18], ri[17], ri[8], ri[16:9], ri[7:0]};
+	end
+endfunction
+
 wire REN_A1_i;
 wire REN_A2_i;
 
@@ -402,7 +425,9 @@ defparam _TECHMAP_REPLACE_.MODE_BITS = {1'b1,
 (* port_a2_width = PORT_A2_WIDTH *)
 (* port_b1_width = PORT_B1_WIDTH *)
 (* port_b2_width = PORT_B2_WIDTH *)
-TDP36K _TECHMAP_REPLACE_ (
+TDP36K #(
+	.RAM_INIT(pack_init()),
+) _TECHMAP_REPLACE_ (
 	.RESET_ni(1'b1),
 	.WDATA_A1_i(WDATA_A1_i),
 	.WDATA_A2_i(WDATA_A2_i),