Merge pull request #314 from antonblanchard/yosys-go-fast-bits

Reduce Yosys ECP5 cell usage by 30% with -abc9 -nowidelut
remove-potato-uart
Paul Mackerras 3 years ago committed by GitHub
commit 1896e5f803
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@ -196,7 +196,7 @@ fpga_files = fpga/soc_reset.vhdl \
synth_files = $(core_files) $(soc_files) $(fpga_files) $(clkgen) $(toplevel) $(dmi_dtm)

microwatt.json: $(synth_files) $(RAM_INIT_FILE)
$(YOSYS) -m $(GHDLSYNTH) -p "ghdl --std=08 --no-formal $(GHDL_IMAGE_GENERICS) $(synth_files) -e toplevel; synth_ecp5 -json $@ $(SYNTH_ECP5_FLAGS)" $(uart_files)
$(YOSYS) -m $(GHDLSYNTH) -p "ghdl --std=08 --no-formal $(GHDL_IMAGE_GENERICS) $(synth_files) -e toplevel; synth_ecp5 -abc9 -nowidelut -json $@ $(SYNTH_ECP5_FLAGS)" $(uart_files)

microwatt.v: $(synth_files) $(RAM_INIT_FILE)
$(YOSYS) -m $(GHDLSYNTH) -p "ghdl --std=08 --no-formal $(GHDL_IMAGE_GENERICS) $(synth_files) -e toplevel; write_verilog $@"

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