ecp5: First BRAM type maps successfully

Signed-off-by: David Shah <dave@ds0.me>

1 files changed, 47 insertions, 0 deletions

diff --git a/techlibs/ecp5/brams_map.v b/techlibs/ecp5/brams_map.v
new file mode 100644
index 000000000..894f5c46f
--- /dev/null
+++ b/techlibs/ecp5/brams_map.v
@@ -0,0 +1,47 @@
+module \$__ECP5_DP16KD (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN);
+	parameter CFG_ABITS = 10;
+	parameter CFG_DBITS = 18;
+	parameter CFG_ENABLE_A = 2;
+
+	parameter CLKPOL2 = 1;
+	parameter CLKPOL3 = 1;
+	parameter [18431:0] INIT = 18432'bx;
+	parameter TRANSP2 = 0;
+
+	input CLK2;
+	input CLK3;
+
+	input [CFG_ABITS-1:0] A1ADDR;
+	input [CFG_DBITS-1:0] A1DATA;
+	input [CFG_ENABLE_A-1:0] A1EN;
+
+	input [CFG_ABITS-1:0] B1ADDR;
+	output [CFG_DBITS-1:0] B1DATA;
+	input B1EN;
+
+	localparam CLKAMUX = CLKPOL2 ? "CLKA" : "INV";
+	localparam CLKBMUX = CLKPOL3 ? "CLKB" : "INV";
+
+	localparam WRITEMODE_A = TRANSP2 ? "WRITETHROUGH" : "NORMAL";
+
+
+	generate if (CFG_DBITS == 1) begin
+		DP16KD #(
+			`include "bram_init_1_2_4.vh"
+			.DATA_WIDTH_A(1),
+			.DATA_WIDTH_B(1),
+			.CLKAMUX(CLKAMUX),
+			.CLKBMUX(CLKBMUX),
+			.WRITEMODE_A(WRITEMODE_A),
+			.GSR("DISABLED")
+		) _TECHMAP_REPLACE_ (
+			`include "bram_conn_1.vh"
+			.CLKA(CLK2), .CLKB(CLK3),
+			.WEA(1'b1), .CEA(|A1EN), .OCEA(1'b1),
+			.WEB(1'b0), .CEB(B1EN), .OCEB(1'b1),
+			.RSTA(1'b0), .RSTB(1'b0)
+		);
+	end else begin
+		wire TECHMAP_FAIL = 1'b1;
+	end endgenerate
+endmodule