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BRAM improvements 

Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2018-10-12 14:22:21 +01:00
parent bdfead8c64
commit 812538a036
1 changed files with 16 additions and 11 deletions
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27
techlibs/ecp5/brams_map.v
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@ -22,7 +22,7 @@ module \$__ECP5_DP16KD (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN);
localparam CLKAMUX = CLKPOL2 ? "CLKA" : "INV";
localparam CLKBMUX = CLKPOL3 ? "CLKB" : "INV";
localparam WRITEMODE_A = TRANSP2 ? "WRITETHROUGH" : "NORMAL";
localparam WRITEMODE_A = TRANSP2 ? "WRITETHROUGH" : "READBEFOREWRITE";
generate if (CFG_DBITS == 1) begin
DP16KD #(
@ -32,12 +32,13 @@ module \$__ECP5_DP16KD (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN);
.CLKAMUX(CLKAMUX),
.CLKBMUX(CLKBMUX),
.WRITEMODE_A(WRITEMODE_A),
.WRITEMODE_B("READBEFOREWRITE"),
.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),
.WEA(|A1EN), .CEA(1'b1), .OCEA(1'b1),
.WEB(1'b0), .CEB(1'b1), .OCEB(B1EN),
.RSTA(1'b0), .RSTB(1'b0)
);
end else if (CFG_DBITS == 2) begin
@ -48,12 +49,13 @@ module \$__ECP5_DP16KD (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN);
.CLKAMUX(CLKAMUX),
.CLKBMUX(CLKBMUX),
.WRITEMODE_A(WRITEMODE_A),
.WRITEMODE_B("READBEFOREWRITE"),
.GSR("DISABLED")
) _TECHMAP_REPLACE_ (
`include "bram_conn_2.vh"
.CLKA(CLK2), .CLKB(CLK3),
.WEA(1'b1), .CEA(|A1EN), .OCEA(1'b1),
.WEB(1'b0), .CEB(B1EN), .OCEB(1'b1),
.WEA(|A1EN), .CEA(1'b1), .OCEA(1'b1),
.WEB(1'b0), .CEB(1'b1), .OCEB(B1EN),
.RSTA(1'b0), .RSTB(1'b0)
);
end else if (CFG_DBITS <= 4) begin
@ -64,12 +66,13 @@ module \$__ECP5_DP16KD (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN);
.CLKAMUX(CLKAMUX),
.CLKBMUX(CLKBMUX),
.WRITEMODE_A(WRITEMODE_A),
.WRITEMODE_B("READBEFOREWRITE"),
.GSR("DISABLED")
) _TECHMAP_REPLACE_ (
`include "bram_conn_4.vh"
.CLKA(CLK2), .CLKB(CLK3),
.WEA(1'b1), .CEA(|A1EN), .OCEA(1'b1),
.WEB(1'b0), .CEB(B1EN), .OCEB(1'b1),
.WEA(|A1EN), .CEA(1'b1), .OCEA(1'b1),
.WEB(1'b0), .CEB(1'b1), .OCEB(B1EN),
.RSTA(1'b0), .RSTB(1'b0)
);
end else if (CFG_DBITS <= 9) begin
@ -80,12 +83,13 @@ module \$__ECP5_DP16KD (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN);
.CLKAMUX(CLKAMUX),
.CLKBMUX(CLKBMUX),
.WRITEMODE_A(WRITEMODE_A),
.WRITEMODE_B("READBEFOREWRITE"),
.GSR("DISABLED")
) _TECHMAP_REPLACE_ (
`include "bram_conn_9.vh"
.CLKA(CLK2), .CLKB(CLK3),
.WEA(1'b1), .CEA(|A1EN), .OCEA(1'b1),
.WEB(1'b0), .CEB(B1EN), .OCEB(1'b1),
.WEA(|A1EN), .CEA(1'b1), .OCEA(1'b1),
.WEB(1'b0), .CEB(1'b1), .OCEB(B1EN),
.RSTA(1'b0), .RSTB(1'b0)
);
end else if (CFG_DBITS <= 18) begin
@ -96,12 +100,13 @@ module \$__ECP5_DP16KD (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN);
.CLKAMUX(CLKAMUX),
.CLKBMUX(CLKBMUX),
.WRITEMODE_A(WRITEMODE_A),
.WRITEMODE_B("READBEFOREWRITE"),
.GSR("DISABLED")
) _TECHMAP_REPLACE_ (
`include "bram_conn_18.vh"
.CLKA(CLK2), .CLKB(CLK3),
.WEA(1'b1), .CEA(|A1EN), .OCEA(1'b1),
.WEB(1'b0), .CEB(B1EN), .OCEB(1'b1),
.WEA(|A1EN), .CEA(1'b1), .OCEA(1'b1),
.WEB(1'b0), .CEB(1'b1), .OCEB(B1EN),
.RSTA(1'b0), .RSTB(1'b0)
);
end else begin