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intel_alm: re-enable 8x40-bit M10K support

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Lofty 2023-05-29 05:49:53 +01:00
parent 8596c5ce49
commit fb7af093a8
2 changed files with 11 additions and 1 deletions
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2
techlibs/intel_alm/common/bram_m10k.txt
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@ -10,6 +10,8 @@ bram $__MISTRAL_M10K
dbits 10 @D1024x10
abits 9 @D512x20
dbits 20 @D512x20
abits 8 @D256x40
dbits 40 @D256x40
groups 2
ports 1 1
wrmode 1 0

10
techlibs/intel_alm/common/bram_m10k_map.v
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@ -13,6 +13,14 @@ input [CFG_DBITS-1:0] A1DATA;
input A1EN, B1EN;
output reg [CFG_DBITS-1:0] B1DATA;
MISTRAL_M10K #(.INIT(INIT), .CFG_ABITS(CFG_ABITS), .CFG_DBITS(CFG_DBITS)) _TECHMAP_REPLACE_ (.CLK1(CLK1), .A1ADDR(A1ADDR), .A1DATA(A1DATA), .A1EN(!A1EN), .B1ADDR(B1ADDR), .B1DATA(B1DATA), .B1EN(B1EN));
// Normal M10K configs use WREN[1], which is negative-true.
// However, 8x40-bit mode uses WREN[0], which is positive-true.
wire a1en;
if (CFG_DBITS == 40)
assign a1en = A1EN;
else
assign a1en = !A1EN;
MISTRAL_M10K #(.INIT(INIT), .CFG_ABITS(CFG_ABITS), .CFG_DBITS(CFG_DBITS)) _TECHMAP_REPLACE_ (.CLK1(CLK1), .A1ADDR(A1ADDR), .A1DATA(A1DATA), .A1EN(a1en), .B1ADDR(B1ADDR), .B1DATA(B1DATA), .B1EN(B1EN));
endmodule