abstractaccelerator/VexRiscv/fpga/synth.sh

#!/bin/bash
set -ex

SOC=../Murax.v

YOSYS_COARSE=true
YOSYS_GLOBRST=false
YOSYS_SPLITNETS=false
TOP="Murax"

mkdir -p gen
rm -rf gen/*

{
	echo "read_verilog ${SOC}"

	if test -n "$TOP"; then
		echo "hierarchy -check -top $TOP"
	else
		echo "hierarchy -check"
	fi
	if $YOSYS_GLOBRST; then
		# insertation of global reset (e.g. for FPGA cores)
		echo "add -global_input globrst 1"
		echo "proc -global_arst globrst"
	fi
	echo "synth -run coarse; opt -fine"
	# echo "tee -o gen/brams.log memory_bram -rules scripts/brams.txt;;"
	if ! $YOSYS_COARSE; then
		echo "memory_map; techmap; opt; abc -dff; clean"
	fi
	if $YOSYS_SPLITNETS; then
		# icarus verilog has a performance problems when there are
		# dependencies between the bits of a long vector
		echo "splitnets; clean"
	fi
	if $YOSYS_COARSE; then
		echo "write_verilog -noexpr -noattr gen/synth.v"
	else
		echo "select -assert-none t:\$[!_]"
		echo "write_verilog -noattr gen/synth.v"
	fi
	echo "synth_ecp5 -top $TOP -json gen/soc.json"
	# echo "synth_xilinx -top $TOP"
} > gen/synth.ys

yosys -v2 -l gen/synth.log gen/synth.ys

nextpnr-ecp5 --25k --package CABGA381 --speed 6 --textcfg gen/soc.cfg --lpf Colorlight_i5_v6.0-extboard.lpf --freq 100  --json gen/soc.json