X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=techlibs%2Fice40%2Fsynth_ice40.cc;h=22cac7d7d12b76d74b11437139886cf8722cb746;hb=ebee746ad21b9f1fe37f50908bdc5d219880e6bb;hp=d92e407262e76c1eba194b78ee8d80ec697bf25e;hpb=b7be6cfd6544a351b885a869008bf10cec189b8b;p=yosys.git

diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc
index d92e40726..22cac7d7d 100644
--- a/techlibs/ice40/synth_ice40.cc
+++ b/techlibs/ice40/synth_ice40.cc
@@ -304,7 +304,9 @@ struct SynthIce40Pass : public ScriptPass
 		if (check_label("map_ffram"))
 		{
 			run("opt -fast -mux_undef -undriven -fine");
-			run("memory_map");
+			run("memory_map -iattr -attr !ram_block -attr !rom_block -attr logic_block "
+			    "-attr syn_ramstyle=auto -attr syn_ramstyle=registers "
+			    "-attr syn_romstyle=auto -attr syn_romstyle=logic");
 			run("opt -undriven -fine");
 		}
 
@@ -316,6 +318,7 @@ struct SynthIce40Pass : public ScriptPass
 				run("ice40_wrapcarry");
 				run("techmap -map +/techmap.v -map +/ice40/arith_map.v");
 			}
+			run("opt -fast");
 			if (retime || help_mode)
 				run("abc -dff -D 1", "(only if -retime)");
 			run("ice40_opt");