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Diffstat (limited to 'examples/ghdlsynth.mk')
| -rw-r--r-- | examples/ghdlsynth.mk | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/examples/ghdlsynth.mk b/examples/ghdlsynth.mk new file mode 100644 index 0000000..d53a57c --- /dev/null +++ b/examples/ghdlsynth.mk @@ -0,0 +1,34 @@ +# Common makefile for GHDL synthesis + +# Specify: +# +# VHDL_SYN_FILES = VHDL files for synthesis, unordered +# VERILOG_FILES = auxiliary verilog wrappers that might be needed +# PLATFORM: 'ecp5' for now +# TOPLEVEL: top level entity name +# TOPLEVEL_PARAMETER: top level entity name parameters, when passed a generic +# LPF: I/O constraints file + +PLATFORM ?= ecp5 + +ifneq ($(VERILOG_FILES),) +MAYBE_READ_VERILOG = read_verilog $(VERILOG_FILES); +endif + +%.json: $(VHDL_SYN_FILES) + $(YOSYS) -m $(GHDLSYNTH) -p \ + "ghdl $(GHDL_FLAGS) $(GHDL_GENERICS) $^ -e $(TOPLEVEL); \ + $(MAYBE_READ_VERILOG) \ + synth_$(PLATFORM) \ + -top $(TOPLEVEL)$(TOPLEVEL_PARAMETER) -json $@" 2>&1 | tee $*-report.txt + +%.config: %.json + $(NEXTPNR) --json $< --lpf $(LPF) \ + --textcfg $@ $(NEXTPNR_FLAGS) --package $(PACKAGE) + +%.svf: %.config + $(ECPPACK) --svf $*.svf $< $@ + + +.PRECIOUS: %.json %.config + |