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Merge pull request #1281 from mmicko/efinix 

Initial support for Efinix Trion series FPGAs
This commit is contained in:
Clifford Wolf 2019-08-22 18:06:02 +02:00 committed by GitHub
parent 34a7c0209d 2897fe4d09
commit 4d37710e82
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GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 798 additions and 0 deletions
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10
techlibs/efinix/Makefile.inc Normal file
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OBJS += techlibs/efinix/synth_efinix.o
OBJS += techlibs/efinix/efinix_gbuf.o
OBJS += techlibs/efinix/efinix_fixcarry.o
$(eval $(call add_share_file,share/efinix,techlibs/efinix/cells_map.v))
$(eval $(call add_share_file,share/efinix,techlibs/efinix/arith_map.v))
$(eval $(call add_share_file,share/efinix,techlibs/efinix/cells_sim.v))
$(eval $(call add_share_file,share/efinix,techlibs/efinix/brams_map.v))
$(eval $(call add_share_file,share/efinix,techlibs/efinix/bram.txt))

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techlibs/efinix/arith_map.v Normal file
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/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2018 Miodrag Milanovic <miodrag@symbioticeda.com>
* Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
(* techmap_celltype = "$alu" *)
module _80_efinix_alu (A, B, CI, BI, X, Y, CO);
parameter A_SIGNED = 0;
parameter B_SIGNED = 0;
parameter A_WIDTH = 1;
parameter B_WIDTH = 1;
parameter Y_WIDTH = 1;
input [A_WIDTH-1:0] A;
input [B_WIDTH-1:0] B;
output [Y_WIDTH-1:0] X, Y;
input CI, BI;
output [Y_WIDTH-1:0] CO;
wire CIx;
wire [Y_WIDTH-1:0] COx;
wire _TECHMAP_FAIL_ = Y_WIDTH <= 2;
wire [Y_WIDTH-1:0] A_buf, B_buf;
\$pos #(.A_SIGNED(A_SIGNED), .A_WIDTH(A_WIDTH), .Y_WIDTH(Y_WIDTH)) A_conv (.A(A), .Y(A_buf));
\$pos #(.A_SIGNED(B_SIGNED), .A_WIDTH(B_WIDTH), .Y_WIDTH(Y_WIDTH)) B_conv (.A(B), .Y(B_buf));
wire [Y_WIDTH-1:0] AA = A_buf;
wire [Y_WIDTH-1:0] BB = BI ? ~B_buf : B_buf;
wire [Y_WIDTH-1:0] C = { COx, CIx };
EFX_ADD #(.I0_POLARITY(1'b1),.I1_POLARITY(1'b1))
adder_cin (
.I0(CI),
.I1(1'b1),
.CI(1'b0),
.CO(CIx)
);
genvar i;
generate for (i = 0; i < Y_WIDTH; i = i + 1) begin: slice
EFX_ADD #(.I0_POLARITY(1'b1),.I1_POLARITY(1'b1))
adder_i (
.I0(AA[i]),
.I1(BB[i]),
.CI(C[i]),
.O(Y[i]),
.CO(COx[i])
);
EFX_ADD #(.I0_POLARITY(1'b1),.I1_POLARITY(1'b1))
adder_cout (
.I0(1'b0),
.I1(1'b0),
.CI(COx[i]),
.O(CO[i])
);
end: slice
endgenerate
/* End implementation */
assign X = AA ^ BB;
endmodule

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bram $__EFINIX_5K
init 1
abits 8 @a8d16
dbits 16 @a8d16
abits 9 @a9d8
dbits 8 @a9d8
abits 10 @a10d4
dbits 4 @a10d4
abits 11 @a11d2
dbits 2 @a11d2
abits 12 @a12d1
dbits 1 @a12d1
abits 8 @a8d20
dbits 20 @a8d20
abits 9 @a9d10
dbits 10 @a9d10
groups 2
ports 1 1
wrmode 1 0
enable 1 1
transp 0 2
clocks 2 3
clkpol 2 3
endbram
match $__EFINIX_5K
min bits 256
min efficiency 5
shuffle_enable B
endmatch

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module \$__EFINIX_5K (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN);
parameter CFG_ABITS = 8;
parameter CFG_DBITS = 20;
parameter CFG_ENABLE_A = 1;
parameter CLKPOL2 = 1;
parameter CLKPOL3 = 1;
parameter [5119:0] INIT = 5119'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 WRITEMODE_A = TRANSP2 ? "WRITE_FIRST" : "READ_FIRST";
EFX_RAM_5K #(
.READ_WIDTH(CFG_DBITS),
.WRITE_WIDTH(CFG_DBITS),
.OUTPUT_REG(1'b0),
.RCLK_POLARITY(1'b1),
.RE_POLARITY(1'b1),
.WCLK_POLARITY(1'b1),
.WE_POLARITY(1'b1),
.WCLKE_POLARITY(1'b1),
.WRITE_MODE(WRITEMODE_A),
.INIT_0(INIT[ 0*256 +: 256]),
.INIT_1(INIT[ 1*256 +: 256]),
.INIT_2(INIT[ 2*256 +: 256]),
.INIT_3(INIT[ 3*256 +: 256]),
.INIT_4(INIT[ 4*256 +: 256]),
.INIT_5(INIT[ 5*256 +: 256]),
.INIT_6(INIT[ 6*256 +: 256]),
.INIT_7(INIT[ 7*256 +: 256]),
.INIT_8(INIT[ 8*256 +: 256]),
.INIT_9(INIT[ 9*256 +: 256]),
.INIT_A(INIT[10*256 +: 256]),
.INIT_B(INIT[11*256 +: 256]),
.INIT_C(INIT[12*256 +: 256]),
.INIT_D(INIT[13*256 +: 256]),
.INIT_E(INIT[14*256 +: 256]),
.INIT_F(INIT[15*256 +: 256]),
.INIT_10(INIT[16*256 +: 256]),
.INIT_11(INIT[17*256 +: 256]),
.INIT_12(INIT[18*256 +: 256]),
.INIT_13(INIT[19*256 +: 256])
) _TECHMAP_REPLACE_ (
.WDATA(A1DATA),
.WADDR(A1ADDR),
.WE(A1EN),
.WCLK(CLK2),
.WCLKE(1'b1),
.RDATA(B1DATA),
.RADDR(B1ADDR),
.RE(B1EN),
.RCLK(CLK3)
);
endmodule

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module \$_DFF_N_ (input D, C, output Q); EFX_FF #(.CLK_POLARITY(1'b0), .CE_POLARITY(1'b1), .SR_POLARITY(1'b1), .D_POLARITY(1'b1), .SR_SYNC(1'b1), .SR_VALUE(1'b0), .SR_SYNC_PRIORITY(1'b1)) _TECHMAP_REPLACE_ (.D(D), .CE(1'b1), .CLK(C), .SR(1'b0), .Q(Q)); endmodule
module \$_DFF_P_ (input D, C, output Q); EFX_FF #(.CLK_POLARITY(1'b1), .CE_POLARITY(1'b1), .SR_POLARITY(1'b1), .D_POLARITY(1'b1), .SR_SYNC(1'b1), .SR_VALUE(1'b0), .SR_SYNC_PRIORITY(1'b1)) _TECHMAP_REPLACE_ (.D(D), .CE(1'b1), .CLK(C), .SR(1'b0), .Q(Q)); endmodule
module \$_DFFE_NN_ (input D, C, E, output Q); EFX_FF #(.CLK_POLARITY(1'b0), .CE_POLARITY(1'b0), .SR_POLARITY(1'b1), .D_POLARITY(1'b1), .SR_SYNC(1'b1), .SR_VALUE(1'b0), .SR_SYNC_PRIORITY(1'b1)) _TECHMAP_REPLACE_ (.D(D), .CE(E), .CLK(C), .SR(1'b0), .Q(Q)); endmodule
module \$_DFFE_NP_ (input D, C, E, output Q); EFX_FF #(.CLK_POLARITY(1'b0), .CE_POLARITY(1'b1), .SR_POLARITY(1'b1), .D_POLARITY(1'b1), .SR_SYNC(1'b1), .SR_VALUE(1'b0), .SR_SYNC_PRIORITY(1'b1)) _TECHMAP_REPLACE_ (.D(D), .CE(E), .CLK(C), .SR(1'b0), .Q(Q)); endmodule
module \$_DFFE_PN_ (input D, C, E, output Q); EFX_FF #(.CLK_POLARITY(1'b1), .CE_POLARITY(1'b0), .SR_POLARITY(1'b1), .D_POLARITY(1'b1), .SR_SYNC(1'b1), .SR_VALUE(1'b0), .SR_SYNC_PRIORITY(1'b1)) _TECHMAP_REPLACE_ (.D(D), .CE(E), .CLK(C), .SR(1'b0), .Q(Q)); endmodule
module \$_DFFE_PP_ (input D, C, E, output Q); EFX_FF #(.CLK_POLARITY(1'b1), .CE_POLARITY(1'b1), .SR_POLARITY(1'b1), .D_POLARITY(1'b1), .SR_SYNC(1'b1), .SR_VALUE(1'b0), .SR_SYNC_PRIORITY(1'b1)) _TECHMAP_REPLACE_ (.D(D), .CE(E), .CLK(C), .SR(1'b0), .Q(Q)); endmodule
module \$_DFF_NN0_ (input D, C, R, output Q); EFX_FF #(.CLK_POLARITY(1'b0), .CE_POLARITY(1'b1), .SR_POLARITY(1'b0), .D_POLARITY(1'b1), .SR_SYNC(1'b0), .SR_VALUE(1'b0), .SR_SYNC_PRIORITY(1'b1)) _TECHMAP_REPLACE_ (.D(D), .CE(1'b1), .CLK(C), .SR(R), .Q(Q)); endmodule
module \$_DFF_NN1_ (input D, C, R, output Q); EFX_FF #(.CLK_POLARITY(1'b0), .CE_POLARITY(1'b1), .SR_POLARITY(1'b0), .D_POLARITY(1'b1), .SR_SYNC(1'b0), .SR_VALUE(1'b1), .SR_SYNC_PRIORITY(1'b1)) _TECHMAP_REPLACE_ (.D(D), .CE(1'b1), .CLK(C), .SR(R), .Q(Q)); endmodule
module \$_DFF_PN0_ (input D, C, R, output Q); EFX_FF #(.CLK_POLARITY(1'b1), .CE_POLARITY(1'b1), .SR_POLARITY(1'b0), .D_POLARITY(1'b1), .SR_SYNC(1'b0), .SR_VALUE(1'b0), .SR_SYNC_PRIORITY(1'b1)) _TECHMAP_REPLACE_ (.D(D), .CE(1'b1), .CLK(C), .SR(R), .Q(Q)); endmodule
module \$_DFF_PN1_ (input D, C, R, output Q); EFX_FF #(.CLK_POLARITY(1'b1), .CE_POLARITY(1'b1), .SR_POLARITY(1'b0), .D_POLARITY(1'b1), .SR_SYNC(1'b0), .SR_VALUE(1'b1), .SR_SYNC_PRIORITY(1'b1)) _TECHMAP_REPLACE_ (.D(D), .CE(1'b1), .CLK(C), .SR(R), .Q(Q)); endmodule
module \$_DFF_NP0_ (input D, C, R, output Q); EFX_FF #(.CLK_POLARITY(1'b0), .CE_POLARITY(1'b1), .SR_POLARITY(1'b1), .D_POLARITY(1'b1), .SR_SYNC(1'b0), .SR_VALUE(1'b0), .SR_SYNC_PRIORITY(1'b1)) _TECHMAP_REPLACE_ (.D(D), .CE(1'b1), .CLK(C), .SR(R), .Q(Q)); endmodule
module \$_DFF_NP1_ (input D, C, R, output Q); EFX_FF #(.CLK_POLARITY(1'b0), .CE_POLARITY(1'b1), .SR_POLARITY(1'b1), .D_POLARITY(1'b1), .SR_SYNC(1'b0), .SR_VALUE(1'b1), .SR_SYNC_PRIORITY(1'b1)) _TECHMAP_REPLACE_ (.D(D), .CE(1'b1), .CLK(C), .SR(R), .Q(Q)); endmodule
module \$_DFF_PP0_ (input D, C, R, output Q); EFX_FF #(.CLK_POLARITY(1'b1), .CE_POLARITY(1'b1), .SR_POLARITY(1'b1), .D_POLARITY(1'b1), .SR_SYNC(1'b0), .SR_VALUE(1'b0), .SR_SYNC_PRIORITY(1'b1)) _TECHMAP_REPLACE_ (.D(D), .CE(1'b1), .CLK(C), .SR(R), .Q(Q)); endmodule
module \$_DFF_PP1_ (input D, C, R, output Q); EFX_FF #(.CLK_POLARITY(1'b1), .CE_POLARITY(1'b1), .SR_POLARITY(1'b1), .D_POLARITY(1'b1), .SR_SYNC(1'b0), .SR_VALUE(1'b1), .SR_SYNC_PRIORITY(1'b1)) _TECHMAP_REPLACE_ (.D(D), .CE(1'b1), .CLK(C), .SR(R), .Q(Q)); endmodule
`ifndef NO_LUT
module \$lut (A, Y);
parameter WIDTH = 0;
parameter LUT = 0;
input [WIDTH-1:0] A;
output Y;
generate
if (WIDTH == 1) begin
EFX_LUT4 #(.LUTMASK(LUT)) _TECHMAP_REPLACE_ (.O(Y), .I0(A[0]), .I1(1'b0), .I2(1'b0), .I3(1'b0));
end else
if (WIDTH == 2) begin
EFX_LUT4 #(.LUTMASK(LUT)) _TECHMAP_REPLACE_ (.O(Y), .I0(A[0]), .I1(A[1]), .I2(1'b0), .I3(1'b0));
end else
if (WIDTH == 3) begin
EFX_LUT4 #(.LUTMASK(LUT)) _TECHMAP_REPLACE_ (.O(Y), .I0(A[0]), .I1(A[1]), .I2(A[2]), .I3(1'b0));
end else
if (WIDTH == 4) begin
EFX_LUT4 #(.LUTMASK(LUT)) _TECHMAP_REPLACE_ (.O(Y), .I0(A[0]), .I1(A[1]), .I2(A[2]), .I3(A[3]));
end else begin
wire _TECHMAP_FAIL_ = 1;
end
endgenerate
endmodule
`endif

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module EFX_LUT4(
output O,
input I0,
input I1,
input I2,
input I3
);
parameter LUTMASK = 16'h0000;
endmodule
module EFX_ADD(
output O,
output CO,
input I0,
input I1,
input CI
);
parameter I0_POLARITY = 1;
parameter I1_POLARITY = 1;
endmodule
module EFX_FF(
output Q,
input D,
input CE,
input CLK,
input SR
);
parameter CLK_POLARITY = 1;
parameter CE_POLARITY = 1;
parameter SR_POLARITY = 1;
parameter SR_SYNC = 0;
parameter SR_VALUE = 0;
parameter SR_SYNC_PRIORITY = 0;
parameter D_POLARITY = 1;
endmodule
module EFX_GBUFCE(
input CE,
input I,
output O
);
parameter CE_POLARITY = 1'b1;
endmodule
module EFX_RAM_5K(
input [WRITE_WIDTH-1:0] WDATA,
input [WRITE_ADDR_WIDTH-1:0] WADDR,
input WE,
input WCLK,
input WCLKE,
output [READ_WIDTH-1:0] RDATA,
input [READ_ADDR_WIDTH-1:0] RADDR,
input RE,
input RCLK
);
parameter READ_WIDTH = 20;
parameter WRITE_WIDTH = 20;
parameter OUTPUT_REG = 1'b0;
parameter RCLK_POLARITY = 1'b1;
parameter RE_POLARITY = 1'b1;
parameter WCLK_POLARITY = 1'b1;
parameter WE_POLARITY = 1'b1;
parameter WCLKE_POLARITY = 1'b1;
parameter WRITE_MODE = "READ_FIRST";
parameter INIT_0 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_1 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_2 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_3 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_4 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_5 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_6 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_7 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_8 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_9 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_A = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_B = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_C = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_D = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_E = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_F = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_10 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_11 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_12 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
parameter INIT_13 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
localparam READ_ADDR_WIDTH =
(READ_WIDTH == 16) ? 8 : // 256x16
(READ_WIDTH == 8) ? 9 : // 512x8
(READ_WIDTH == 4) ? 10 : // 1024x4
(READ_WIDTH == 2) ? 11 : // 2048x2
(READ_WIDTH == 1) ? 12 : // 4096x1
(READ_WIDTH == 20) ? 8 : // 256x20
(READ_WIDTH == 10) ? 9 : // 512x10
(READ_WIDTH == 5) ? 10 : -1; // 1024x5
localparam WRITE_ADDR_WIDTH =
(WRITE_WIDTH == 16) ? 8 : // 256x16
(WRITE_WIDTH == 8) ? 9 : // 512x8
(WRITE_WIDTH == 4) ? 10 : // 1024x4
(WRITE_WIDTH == 2) ? 11 : // 2048x2
(WRITE_WIDTH == 1) ? 12 : // 4096x1
(WRITE_WIDTH == 20) ? 8 : // 256x20
(WRITE_WIDTH == 10) ? 9 : // 512x10
(WRITE_WIDTH == 5) ? 10 : -1; // 1024x5
endmodule

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/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2019 Miodrag Milanovic <miodrag@symbioticeda.com>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "kernel/yosys.h"
#include "kernel/sigtools.h"
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
static SigBit get_bit_or_zero(const SigSpec &sig)
{
if (GetSize(sig) == 0)
return State::S0;
return sig[0];
}
static void fix_carry_chain(Module *module)
{
SigMap sigmap(module);
pool<SigBit> ci_bits;
dict<SigBit, SigBit> mapping_bits;
for (auto cell : module->cells())
{
if (cell->type == "\\EFX_ADD") {
SigBit bit_i0 = get_bit_or_zero(cell->getPort("\\I0"));
SigBit bit_i1 = get_bit_or_zero(cell->getPort("\\I1"));
if (bit_i0 == State::S0 && bit_i1== State::S0) {
SigBit bit_ci = get_bit_or_zero(cell->getPort("\\CI"));
SigBit bit_o = sigmap(cell->getPort("\\O"));
ci_bits.insert(bit_ci);
mapping_bits[bit_ci] = bit_o;
}
}
}
vector<Cell*> adders_to_fix_cells;
for (auto cell : module->cells())
{
if (cell->type == "\\EFX_ADD") {
SigBit bit_ci = get_bit_or_zero(cell->getPort("\\CI"));
SigBit bit_i0 = get_bit_or_zero(cell->getPort("\\I0"));
SigBit bit_i1 = get_bit_or_zero(cell->getPort("\\I1"));
SigBit canonical_bit = sigmap(bit_ci);
if (!ci_bits.count(canonical_bit))
continue;
if (bit_i0 == State::S0 && bit_i1== State::S0)
continue;
adders_to_fix_cells.push_back(cell);
log("Found %s cell named %s with invalid CI signal.\n", log_id(cell->type), log_id(cell));
}
}
for (auto cell : adders_to_fix_cells)
{
SigBit bit_ci = get_bit_or_zero(cell->getPort("\\CI"));
SigBit canonical_bit = sigmap(bit_ci);
auto bit = mapping_bits.at(canonical_bit);
log("Fixing %s cell named %s breaking carry chain.\n", log_id(cell->type), log_id(cell));
Cell *c = module->addCell(NEW_ID, "\\EFX_ADD");
SigBit new_bit = module->addWire(NEW_ID);
c->setParam("\\I0_POLARITY", State::S1);
c->setParam("\\I1_POLARITY", State::S1);
c->setPort("\\I0", bit);
c->setPort("\\I1", State::S1);
c->setPort("\\CI", State::S0);
c->setPort("\\CO", new_bit);
cell->setPort("\\CI", new_bit);
}
}
struct EfinixCarryFixPass : public Pass {
EfinixCarryFixPass() : Pass("efinix_fixcarry", "Efinix: fix carry chain") { }
void help() YS_OVERRIDE
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" efinix_fixcarry [options] [selection]\n");
log("\n");
log("Add Efinix adders to fix carry chain if needed.\n");
log("\n");
}
void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
{
log_header(design, "Executing efinix_fixcarry pass (fix invalid carry chain).\n");
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++)
{
break;
}
extra_args(args, argidx, design);
Module *module = design->top_module();
if (module == nullptr)
log_cmd_error("No top module found.\n");
fix_carry_chain(module);
}
} EfinixCarryFixPass;
PRIVATE_NAMESPACE_END

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/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2019 Miodrag Milanovic <miodrag@symbioticeda.com>
* Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "kernel/yosys.h"
#include "kernel/sigtools.h"
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
static void handle_gbufs(Module *module)
{
SigMap sigmap(module);
pool<SigBit> clk_bits;
dict<SigBit, SigBit> rewrite_bits;
vector<pair<Cell*, SigBit>> pad_bits;
for (auto cell : module->cells())
{
if (cell->type == "\\EFX_FF") {
for (auto bit : sigmap(cell->getPort("\\CLK")))
clk_bits.insert(bit);
}
if (cell->type == "\\EFX_RAM_5K") {
for (auto bit : sigmap(cell->getPort("\\RCLK")))
clk_bits.insert(bit);
for (auto bit : sigmap(cell->getPort("\\WCLK")))
clk_bits.insert(bit);
}
}
for (auto wire : vector<Wire*>(module->wires()))
{
if (!wire->port_input)
continue;
for (int index = 0; index < GetSize(wire); index++)
{
SigBit bit(wire, index);
SigBit canonical_bit = sigmap(bit);
if (!clk_bits.count(canonical_bit))
continue;
Cell *c = module->addCell(NEW_ID, "\\EFX_GBUFCE");
SigBit new_bit = module->addWire(NEW_ID);
c->setParam("\\CE_POLARITY", State::S1);
c->setPort("\\O", new_bit);
c->setPort("\\CE", State::S1);
pad_bits.push_back(make_pair(c, bit));
rewrite_bits[canonical_bit] = new_bit;
log("Added %s cell %s for port bit %s.\n", log_id(c->type), log_id(c), log_signal(bit));
}
}
auto rewrite_function = [&](SigSpec &s) {
for (auto &bit : s) {
SigBit canonical_bit = sigmap(bit);
if (rewrite_bits.count(canonical_bit))
bit = rewrite_bits.at(canonical_bit);
}
};
module->rewrite_sigspecs(rewrite_function);
for (auto &it : pad_bits)
it.first->setPort("\\I", it.second);
}
struct EfinixGbufPass : public Pass {
EfinixGbufPass() : Pass("efinix_gbuf", "Efinix: insert global clock buffers") { }
void help() YS_OVERRIDE
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" efinix_gbuf [options] [selection]\n");
log("\n");
log("Add Efinix global clock buffers to top module as needed.\n");
log("\n");
}
void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
{
log_header(design, "Executing efinix_gbuf pass (insert global clock buffers).\n");
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++)
{
break;
}
extra_args(args, argidx, design);
Module *module = design->top_module();
if (module == nullptr)
log_cmd_error("No top module found.\n");
handle_gbufs(module);
}
} EfinixGbufPass;
PRIVATE_NAMESPACE_END

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/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2019 Miodrag Milanovic <miodrag@symbioticeda.com>
* Copyright (C) 2019 Clifford Wolf <clifford@clifford.at>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "kernel/register.h"
#include "kernel/celltypes.h"
#include "kernel/rtlil.h"
#include "kernel/log.h"
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
struct SynthEfinixPass : public ScriptPass
{
SynthEfinixPass() : ScriptPass("synth_efinix", "synthesis for Efinix FPGAs") { }
void help() YS_OVERRIDE
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" synth_efinix [options]\n");
log("\n");
log("This command runs synthesis for Efinix FPGAs.\n");
log("\n");
log(" -top <module>\n");
log(" use the specified module as top module\n");
log("\n");
log(" -edif <file>\n");
log(" write the design to the specified EDIF file. writing of an output file\n");
log(" is omitted if this parameter is not specified.\n");
log("\n");
log(" -json <file>\n");
log(" write the design to the specified JSON file. writing of an output file\n");
log(" is omitted if this parameter is not specified.\n");
log("\n");
log(" -run <from_label>:<to_label>\n");
log(" only run the commands between the labels (see below). an empty\n");
log(" from label is synonymous to 'begin', and empty to label is\n");
log(" synonymous to the end of the command list.\n");
log("\n");
log(" -noflatten\n");
log(" do not flatten design before synthesis\n");
log("\n");
log(" -retime\n");
log(" run 'abc' with -dff option\n");
log("\n");
log("\n");
log("The following commands are executed by this synthesis command:\n");
help_script();
log("\n");
}
string top_opt, edif_file, json_file;
bool flatten, retime;
void clear_flags() YS_OVERRIDE
{
top_opt = "-auto-top";
edif_file = "";
json_file = "";
flatten = true;
retime = false;
}
void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
{
string run_from, run_to;
clear_flags();
size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++)
{
if (args[argidx] == "-top" && argidx+1 < args.size()) {
top_opt = "-top " + args[++argidx];
continue;
}
if (args[argidx] == "-edif" && argidx+1 < args.size()) {
edif_file = args[++argidx];
continue;
}
if (args[argidx] == "-json" && argidx+1 < args.size()) {
json_file = args[++argidx];
continue;
}
if (args[argidx] == "-run" && argidx+1 < args.size()) {
size_t pos = args[argidx+1].find(':');
if (pos == std::string::npos)
break;
run_from = args[++argidx].substr(0, pos);
run_to = args[argidx].substr(pos+1);
continue;
}
if (args[argidx] == "-noflatten") {
flatten = false;
continue;
}
if (args[argidx] == "-retime") {
retime = true;
continue;
}
break;
}
extra_args(args, argidx, design);
if (!design->full_selection())
log_cmd_error("This command only operates on fully selected designs!\n");
log_header(design, "Executing SYNTH_EFINIX pass.\n");
log_push();
run_script(design, run_from, run_to);
log_pop();
}
void script() YS_OVERRIDE
{
if (check_label("begin"))
{
run("read_verilog -lib +/efinix/cells_sim.v");
run(stringf("hierarchy -check %s", help_mode ? "-top <top>" : top_opt.c_str()));
}
if (flatten && check_label("flatten", "(unless -noflatten)"))
{
run("proc");
run("flatten");
run("tribuf -logic");
run("deminout");
}
if (check_label("coarse"))
{
run("synth -run coarse");
}
if (check_label("map_bram", "(skip if -nobram)"))
{
run("memory_bram -rules +/efinix/bram.txt");
run("techmap -map +/efinix/brams_map.v");
run("setundef -zero -params t:EFX_RAM_5K");
}
if (check_label("fine"))
{
run("opt -fast -mux_undef -undriven -fine");
run("memory_map");
run("opt -undriven -fine");
run("techmap -map +/techmap.v -map +/efinix/arith_map.v");
if (retime || help_mode)
run("abc -dff", "(only if -retime)");
}
if (check_label("map_ffs"))
{
run("dffsr2dff");
run("techmap -D NO_LUT -map +/efinix/cells_map.v");
run("dffinit -strinit SET RESET -ff AL_MAP_SEQ q REGSET -noreinit");
run("opt_expr -mux_undef");
run("simplemap");
}
if (check_label("map_luts"))
{
run("abc -lut 4");
run("clean");
}
if (check_label("map_cells"))
{
run("techmap -map +/efinix/cells_map.v");
run("clean");
}
if (check_label("map_gbuf"))
{
run("efinix_gbuf");
run("efinix_fixcarry");
run("clean");
}
if (check_label("check"))
{
run("hierarchy -check");
run("stat");
run("check -noinit");
}
if (check_label("edif"))
{
if (!edif_file.empty() || help_mode)
run(stringf("write_edif %s", help_mode ? "<file-name>" : edif_file.c_str()));
}
if (check_label("json"))
{
if (!json_file.empty() || help_mode)
run(stringf("write_json %s", help_mode ? "<file-name>" : json_file.c_str()));
}
}
} SynthEfinixPass;
PRIVATE_NAMESPACE_END