From: David Shah Date: Tue, 1 Oct 2019 12:46:36 +0000 (+0100) Subject: ecp5: Add support for mapping 36-bit wide PDP BRAMs X-Git-Tag: working-ls180~1022^2~1 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7a1538cd36b45fd3c397dd0414de37af768ad89e;p=yosys.git ecp5: Add support for mapping 36-bit wide PDP BRAMs Signed-off-by: David Shah --- diff --git a/techlibs/ecp5/.gitignore b/techlibs/ecp5/.gitignore index 54c329735..9d4723264 100644 --- a/techlibs/ecp5/.gitignore +++ b/techlibs/ecp5/.gitignore @@ -6,4 +6,5 @@ bram_conn_2.vh bram_conn_4.vh bram_conn_9.vh bram_conn_18.vh +bram_conn_36.vh brams_connect.mk diff --git a/techlibs/ecp5/Makefile.inc b/techlibs/ecp5/Makefile.inc index 80eee5004..b03da164c 100644 --- a/techlibs/ecp5/Makefile.inc +++ b/techlibs/ecp5/Makefile.inc @@ -44,6 +44,7 @@ techlibs/ecp5/bram_conn_2.vh: techlibs/ecp5/brams_connect.mk techlibs/ecp5/bram_conn_4.vh: techlibs/ecp5/brams_connect.mk techlibs/ecp5/bram_conn_9.vh: techlibs/ecp5/brams_connect.mk techlibs/ecp5/bram_conn_18.vh: techlibs/ecp5/brams_connect.mk +techlibs/ecp5/bram_conn_36.vh: techlibs/ecp5/brams_connect.mk $(eval $(call add_gen_share_file,share/ecp5,techlibs/ecp5/bram_init_1_2_4.vh)) $(eval $(call add_gen_share_file,share/ecp5,techlibs/ecp5/bram_init_9_18_36.vh)) @@ -53,3 +54,4 @@ $(eval $(call add_gen_share_file,share/ecp5,techlibs/ecp5/bram_conn_2.vh)) $(eval $(call add_gen_share_file,share/ecp5,techlibs/ecp5/bram_conn_4.vh)) $(eval $(call add_gen_share_file,share/ecp5,techlibs/ecp5/bram_conn_9.vh)) $(eval $(call add_gen_share_file,share/ecp5,techlibs/ecp5/bram_conn_18.vh)) +$(eval $(call add_gen_share_file,share/ecp5,techlibs/ecp5/bram_conn_36.vh)) diff --git a/techlibs/ecp5/bram.txt b/techlibs/ecp5/bram.txt index f223a42b8..570960489 100644 --- a/techlibs/ecp5/bram.txt +++ b/techlibs/ecp5/bram.txt @@ -1,3 +1,18 @@ +bram $__ECP5_PDPW16KD + init 1 + + abits 9 + dbits 36 + + groups 2 + ports 1 1 + wrmode 1 0 + enable 4 1 + transp 0 0 + clocks 2 3 + clkpol 2 3 +endbram + bram $__ECP5_DP16KD init 1 @@ -22,6 +37,14 @@ bram $__ECP5_DP16KD clkpol 2 3 endbram +match $__ECP5_PDPW16KD + min bits 2048 + min efficiency 5 + shuffle_enable B + make_transp + or_next_if_better +endmatch + match $__ECP5_DP16KD min bits 2048 min efficiency 5 diff --git a/techlibs/ecp5/brams_connect.py b/techlibs/ecp5/brams_connect.py index f86dcfcf0..098607c59 100755 --- a/techlibs/ecp5/brams_connect.py +++ b/techlibs/ecp5/brams_connect.py @@ -10,6 +10,18 @@ def write_bus_ports(f, ada_bits, adb_bits, dia_bits, dob_bits): print(" %s," % ", ".join(dia_conn), file=f) print(" %s," % ", ".join(dob_conn), file=f) +def write_bus_ports_pdp(f, adw_bits, adr_bits, di_bits, do_bits, be_bits): + adw_conn = [".ADW%d(%s)" % (i, adw_bits[i]) for i in range(len(adw_bits))] + adr_conn = [".ADR%d(%s)" % (i, adr_bits[i]) for i in range(len(adr_bits))] + di_conn = [".DI%d(%s)" % (i, di_bits[i]) for i in range(len(di_bits))] + do_conn = [".DO%d(%s)" % (i, do_bits[i]) for i in range(len(do_bits))] + be_conn = [".BE%d(%s)" % (i, be_bits[i]) for i in range(len(be_bits))] + print(" %s," % ", ".join(adw_conn), file=f) + print(" %s," % ", ".join(adr_conn), file=f) + print(" %s," % ", ".join(di_conn), file=f) + print(" %s," % ", ".join(do_conn), file=f) + print(" %s," % ", ".join(be_conn), file=f) + with open("techlibs/ecp5/bram_conn_1.vh", "w") as f: ada_bits = ["A1ADDR[%d]" % i for i in range(14)] adb_bits = ["B1ADDR[%d]" % i for i in range(14)] @@ -44,3 +56,11 @@ with open("techlibs/ecp5/bram_conn_18.vh", "w") as f: dia_bits = ["A1DATA[%d]" % i for i in range(18)] dob_bits = ["B1DATA[%d]" % i for i in range(18)] write_bus_ports(f, ada_bits, adb_bits, dia_bits, dob_bits) + +with open("techlibs/ecp5/bram_conn_36.vh", "w") as f: + adw_bits = ["A1ADDR[%d]" % i for i in range(9)] + adr_bits = ["1'b0", "1'b0", "1'b0", "1'b0", "1'b0"] + ["B1ADDR[%d]" % i for i in range(9)] + di_bits = ["A1DATA[%d]" % i for i in range(36)] + do_bits = ["B1DATA[%d]" % (i + 18) for i in range(18)] + ["B1DATA[%d]" % i for i in range(18)] + be_bits = ["A1EN[%d]" % i for i in range(4)] + write_bus_ports_pdp(f, adw_bits, adr_bits, di_bits, do_bits, be_bits) diff --git a/techlibs/ecp5/brams_map.v b/techlibs/ecp5/brams_map.v index 0353cbadb..310aedaf2 100644 --- a/techlibs/ecp5/brams_map.v +++ b/techlibs/ecp5/brams_map.v @@ -113,3 +113,45 @@ module \$__ECP5_DP16KD (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN); wire TECHMAP_FAIL = 1'b1; end endgenerate endmodule + +module \$__ECP5_PDPW16KD (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN); + parameter CFG_ABITS = 9; + parameter CFG_DBITS = 36; + parameter CFG_ENABLE_A = 4; + + parameter CLKPOL2 = 1; + parameter CLKPOL3 = 1; + parameter [18431:0] INIT = 18432'bx; + + 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 CLKWMUX = CLKPOL2 ? "CLKA" : "INV"; + localparam CLKRMUX = CLKPOL3 ? "CLKB" : "INV"; + + localparam WRITEMODE_A = TRANSP2 ? "WRITETHROUGH" : "READBEFOREWRITE"; + + PDPW16KD #( + `include "bram_init_9_18_36.vh" + .DATA_WIDTH_W(36), + .DATA_WIDTH_R(36), + .CLKWMUX(CLKWMUX), + .CLKRMUX(CLKRMUX), + .GSR("AUTO") + ) _TECHMAP_REPLACE_ ( + `include "bram_conn_36.vh" + .CLKW(CLK2), .CLKR(CLK3), + .CEW(1'b1), + .CER(B1EN), .OCER(1'b1), + .RST(1'b0) + ); + +endmodule diff --git a/techlibs/ecp5/cells_bb.v b/techlibs/ecp5/cells_bb.v index 8557053b6..0a5046db2 100644 --- a/techlibs/ecp5/cells_bb.v +++ b/techlibs/ecp5/cells_bb.v @@ -683,4 +683,98 @@ endmodule module SGSR ( input GSR, CLK ); -endmodule \ No newline at end of file +endmodule + + +(* blackbox *) +module PDPW16KD ( + input DI35, DI34, DI33, DI32, DI31, DI30, DI29, DI28, DI27, DI26, DI25, DI24, DI23, DI22, DI21, DI20, DI19, DI18, + input DI17, DI16, DI15, DI14, DI13, DI12, DI11, DI10, DI9, DI8, DI7, DI6, DI5, DI4, DI3, DI2, DI1, DI0, + input ADW8, ADW7, ADW6, ADW5, ADW4, ADW3, ADW2, ADW1, ADW0, + input BE3, BE2, BE1, BE0, CEW, CLKW, CSW2, CSW1, CSW0, + input ADR13, ADR12, ADR11, ADR10, ADR9, ADR8, ADR7, ADR6, ADR5, ADR4, ADR3, ADR2, ADR1, ADR0, + input CER, OCER, CLKR, CSR2, CSR1, CSR0, RST, + output DO35, DO34, DO33, DO32, DO31, DO30, DO29, DO28, DO27, DO26, DO25, DO24, DO23, DO22, DO21, DO20, DO19, DO18, + output DO17, DO16, DO15, DO14, DO13, DO12, DO11, DO10, DO9, DO8, DO7, DO6, DO5, DO4, DO3, DO2, DO1, DO0 +); + parameter DATA_WIDTH_W = 36; + parameter DATA_WIDTH_R = 36; + parameter GSR = "ENABLED"; + + parameter REGMODE = "NOREG"; + + parameter RESETMODE = "SYNC"; + parameter ASYNC_RESET_RELEASE = "SYNC"; + + parameter CSDECODE_W = "0b000"; + parameter CSDECODE_R = "0b000"; + + parameter INITVAL_00 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_01 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_02 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_03 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_04 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_05 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_06 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_07 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_08 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_09 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_0A = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_0B = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_0C = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_0D = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_0E = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_0F = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_10 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_11 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_12 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_13 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_14 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_15 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_16 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_17 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_18 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_19 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_1A = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_1B = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_1C = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_1D = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_1E = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_1F = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_20 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_21 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_22 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_23 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_24 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_25 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_26 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_27 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_28 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_29 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_2A = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_2B = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_2C = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_2D = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_2E = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_2F = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_30 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_31 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_32 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_33 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_34 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_35 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_36 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_37 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_38 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_39 = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_3A = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_3B = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_3C = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_3D = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_3E = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INITVAL_3F = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; + parameter INIT_DATA = "STATIC"; + parameter CLKWMUX = "CLKW"; + parameter CLKRMUX = "CLKR"; + +endmodule