mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2025-11-05 13:56:04 +00:00
Code Activity

Gowin. Handle the WRITE_MODE.

Browse source 
Process the WRITE_MODE in the GW5A series in a more concise manner.

You can check it in the same way as in
https://github.com/YosysHQ/yosys/pull/5440

Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
This commit is contained in:
YRabbit 2025-10-25 16:36:46 +10:00
parent f5c9e122de
commit 221874ba4b
4 changed files with 9 additions and 75 deletions
Download patch file Download diff file Expand all files Collapse all files

1
techlibs/gowin/Makefile.inc
View file

@ -10,6 +10,5 @@ $(eval $(call add_share_file,share/gowin,techlibs/gowin/arith_map.v))
$(eval $(call add_share_file,share/gowin,techlibs/gowin/brams_map.v)) $(eval $(call add_share_file,share/gowin,techlibs/gowin/brams_map.v))
$(eval $(call add_share_file,share/gowin,techlibs/gowin/brams_map_gw5a.v)) $(eval $(call add_share_file,share/gowin,techlibs/gowin/brams_map_gw5a.v))
$(eval $(call add_share_file,share/gowin,techlibs/gowin/brams.txt)) $(eval $(call add_share_file,share/gowin,techlibs/gowin/brams.txt))
$(eval $(call add_share_file,share/gowin,techlibs/gowin/brams_gw5a.txt))
$(eval $(call add_share_file,share/gowin,techlibs/gowin/lutrams_map.v)) $(eval $(call add_share_file,share/gowin,techlibs/gowin/lutrams_map.v))
$(eval $(call add_share_file,share/gowin,techlibs/gowin/lutrams.txt)) $(eval $(call add_share_file,share/gowin,techlibs/gowin/lutrams.txt))

4
techlibs/gowin/brams.txt
View file

@ -19,10 +19,12 @@ ram block $__GOWIN_SP_ {
portoption "WRITE_MODE" 1 { portoption "WRITE_MODE" 1 {
rdwr new; rdwr new;
} }
ifndef gw5a {
portoption "WRITE_MODE" 2 { portoption "WRITE_MODE" 2 {
rdwr old; rdwr old;
} }
} }
}
} }
ram block $__GOWIN_DP_ { ram block $__GOWIN_DP_ {
@ -46,10 +48,12 @@ ram block $__GOWIN_DP_ {
portoption "WRITE_MODE" 1 { portoption "WRITE_MODE" 1 {
rdwr new; rdwr new;
} }
ifndef gw5a {
portoption "WRITE_MODE" 2 { portoption "WRITE_MODE" 2 {
rdwr old; rdwr old;
} }
} }
}
} }
ram block $__GOWIN_SDP_ { ram block $__GOWIN_SDP_ {

69
techlibs/gowin/brams_gw5a.txt
View file

@ -1,69 +0,0 @@
ram block $__GOWIN_SP_ {
abits 14;
widths 1 2 4 9 18 36 per_port;
cost 128;
init no_undef;
port srsw "A" {
clock posedge;
clken;
option "RESET_MODE" "SYNC" {
rdsrst zero ungated;
}
option "RESET_MODE" "ASYNC" {
rdarst zero;
}
rdinit zero;
portoption "WRITE_MODE" 0 {
rdwr no_change;
}
portoption "WRITE_MODE" 1 {
rdwr new;
}
}
}
ram block $__GOWIN_DP_ {
abits 14;
widths 1 2 4 9 18 per_port;
cost 128;
init no_undef;
port srsw "A" "B" {
clock posedge;
clken;
option "RESET_MODE" "SYNC" {
rdsrst zero ungated;
}
option "RESET_MODE" "ASYNC" {
rdarst zero;
}
rdinit zero;
portoption "WRITE_MODE" 0 {
rdwr no_change;
}
portoption "WRITE_MODE" 1 {
rdwr new;
}
}
}
ram block $__GOWIN_SDP_ {
abits 14;
widths 1 2 4 9 18 36 per_port;
cost 128;
init no_undef;
port sr "R" {
clock posedge;
clken;
option "RESET_MODE" "SYNC" {
rdsrst zero ungated;
}
option "RESET_MODE" "ASYNC" {
rdarst zero;
}
rdinit zero;
}
port sw "W" {
clock posedge;
clken;
}
}

2
techlibs/gowin/synth_gowin.cc
View file

@ -263,7 +263,7 @@ struct SynthGowinPass : public ScriptPass
if (nolutram) if (nolutram)
args += " -no-auto-distributed"; args += " -no-auto-distributed";
} }
run(stringf("memory_libmap -lib +/gowin/lutrams.txt -lib +/gowin/brams%s.txt", family == "gw5a" ? "_gw5a" : "") + args, "(-no-auto-block if -nobram, -no-auto-distributed if -nolutram)"); run(stringf("memory_libmap -lib +/gowin/lutrams.txt -lib +/gowin/brams.txt -D %s", family) + args, "(-no-auto-block if -nobram, -no-auto-distributed if -nolutram)");
run(stringf("techmap -map +/gowin/lutrams_map.v -map +/gowin/brams_map%s.v", family == "gw5a" ? "_gw5a" : "")); run(stringf("techmap -map +/gowin/lutrams_map.v -map +/gowin/brams_map%s.v", family == "gw5a" ? "_gw5a" : ""));
} }