Merge pull request #3120 from Icenowy/anlogic-bram

anlogic: support BRAM mapping

1 files changed, 17 insertions, 1 deletions

diff --git a/techlibs/anlogic/synth_anlogic.cc b/techlibs/anlogic/synth_anlogic.cc
index 039cae00e..5da14c26b 100644
--- a/techlibs/anlogic/synth_anlogic.cc
+++ b/techlibs/anlogic/synth_anlogic.cc
@@ -63,6 +63,9 @@ struct SynthAnlogicPass : public ScriptPass
 		log("    -nolutram\n");
 		log("        do not use EG_LOGIC_DRAM16X4 cells in output netlist\n");
 		log("\n");
+		log("    -nobram\n");
+		log("        do not use EG_PHY_BRAM or EG_PHY_BRAM32K cells in output netlist\n");
+		log("\n");
 		log("\n");
 		log("The following commands are executed by this synthesis command:\n");
 		help_script();
@@ -70,7 +73,7 @@ struct SynthAnlogicPass : public ScriptPass
 	}
 
 	string top_opt, edif_file, json_file;
-	bool flatten, retime, nolutram;
+	bool flatten, retime, nolutram, nobram;
 
 	void clear_flags() override
 	{
@@ -80,6 +83,7 @@ struct SynthAnlogicPass : public ScriptPass
 		flatten = true;
 		retime = false;
 		nolutram = false;
+		nobram = false;
 	}
 
 	void execute(std::vector<std::string> args, RTLIL::Design *design) override
@@ -118,6 +122,10 @@ struct SynthAnlogicPass : public ScriptPass
 				nolutram = true;
 				continue;
 			}
+			if (args[argidx] == "-nobram") {
+				nobram = true;
+				continue;
+			}
 			if (args[argidx] == "-retime") {
 				retime = true;
 				continue;
@@ -158,6 +166,14 @@ struct SynthAnlogicPass : public ScriptPass
 			run("synth -run coarse");
 		}
 
+		if (!nobram && check_label("map_bram", "(skip if -nobram)"))
+		{
+			run("memory_bram -rules +/anlogic/brams.txt");
+			run("techmap -map +/anlogic/brams_map.v");
+			run("setundef -zero -params t:EG_PHY_BRAM");
+			run("setundef -zero -params t:EG_PHY_BRAM32K");
+		}
+
 		if (!nolutram && check_label("map_lutram", "(skip if -nolutram)"))
 		{
 			run("memory_bram -rules +/anlogic/lutrams.txt");