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yosys/techlibs/nexus/cells_xtra.py

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Python
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#!/usr/bin/env python3
# Based on Xilinx cells_xtra.py; modified for Radiant's structure
from argparse import ArgumentParser
from io import StringIO
from enum import Enum, auto
import os.path
import sys
import re
class Cell:
def __init__(self, name, keep=False, port_attrs={}):
self.name = name
self.keep = keep
self.port_attrs = port_attrs
self.found = False
class State(Enum):
OUTSIDE = auto()
IN_MODULE = auto()
IN_OTHER_MODULE = auto()
IN_FUNCTION = auto()
IN_TASK = auto()
devices = [
("lifcl", [
Cell("ACC54"),
Cell("ADC"),
Cell("ALUREG"),
Cell("BB_ADC", keep=True),
Cell("BB_CDR", keep=True),
Cell("BB_I3C_A", keep=True),
Cell("BFD1P3KX"),
Cell("BFD1P3LX"),
Cell("BNKREF18", keep=True),
Cell("CONFIG_LMMI", keep=True),
Cell("DCC"),
Cell("DCS"),
Cell("DDRDLL"),
Cell("DELAYA"),
Cell("DELAYB"),
Cell("DIFFIO18", keep=True),
Cell("DLLDEL"),
Cell("DP16K_MODE"),
Cell("DP16K"),
Cell("DPHY", keep=True),
Cell("DPSC512K"),
Cell("DQSBUF"),
Cell("EBR_CORE"),
Cell("EBR"),
Cell("ECLKDIV"),
Cell("ECLKSYNC"),
Cell("FBMUX"),
Cell("FIFO16K_MODE"),
Cell("FIFO16K"),
Cell("GSR"),
Cell("HSE"),
Cell("I2CFIFO"),
Cell("IDDR71"),
Cell("IDDRX1"),
Cell("IDDRX2DQ"),
Cell("IDDRX2"),
Cell("IDDRX4DQ"),
Cell("IDDRX4"),
Cell("IDDRX5"),
Cell("IFD1P3BX"),
Cell("IFD1P3DX"),
Cell("IFD1P3IX"),
Cell("IFD1P3JX"),
Cell("JTAG", keep=True),
Cell("LRAM"),
Cell("M18X36"),
Cell("MIPI"),
Cell("MULT18"),
# Cell("MULT18X18"),
# Cell("MULT18X36"),
Cell("MULT36"),
# Cell("MULT36X36"),
Cell("MULT9"),
# Cell("MULT9X9"),
# Cell("MULTADDSUB18X18"),
Cell("MULTADDSUB18X18WIDE"),
# Cell("MULTADDSUB18X36"),
# Cell("MULTADDSUB36X36"),
Cell("MULTADDSUB9X9WIDE"),
Cell("MULTIBOOT", keep=True),
# Cell("MULTPREADD18X18"),
# Cell("MULTPREADD9X9"),
Cell("ODDR71"),
Cell("ODDRX1"),
Cell("ODDRX2DQS"),
Cell("ODDRX2DQ"),
Cell("ODDRX2"),
Cell("ODDRX4DQS"),
Cell("ODDRX4DQ"),
Cell("ODDRX4"),
Cell("ODDRX5"),
Cell("OFD1P3BX"),
Cell("OFD1P3DX"),
Cell("OFD1P3IX"),
Cell("OFD1P3JX"),
Cell("OSC"),
Cell("OSCA"),
Cell("OSHX2"),
Cell("OSHX4"),
Cell("PCIE"),
Cell("PCLKDIV"),
Cell("PCLKDIVSP"),
Cell("PDP16K_MODE"),
Cell("PDP16K"),
Cell("PDPSC16K_MODE"),
Cell("PDPSC16K"),
Cell("PDPSC512K"),
Cell("PLL"),
Cell("PREADD9"),
Cell("PUR", keep=True),
Cell("REFMUX"),
Cell("REG18"),
Cell("SEDC", keep=True),
Cell("SEIO18"),
Cell("SEIO33"),
Cell("SGMIICDR"),
Cell("SP16K_MODE"),
Cell("SP16K"),
Cell("SP512K"),
Cell("TSALLA"),
Cell("TSHX2DQS"),
Cell("TSHX2DQ"),
Cell("TSHX4DQS"),
Cell("TSHX4DQ"),
Cell("WDT", keep=True),
Cell("ACC54_CORE"),
Cell("ADC_CORE"),
Cell("ALUREG_CORE"),
Cell("BNKREF18_CORE"),
Cell("BNKREF33_CORE"),
Cell("DIFFIO18_CORE"),
Cell("CONFIG_CLKRST_CORE", keep=True),
Cell("CONFIG_HSE_CORE", keep=True),
Cell("CONFIG_IP_CORE", keep=True),
Cell("CONFIG_JTAG_CORE", keep=True),
Cell("CONFIG_LMMI_CORE", keep=True),
Cell("CONFIG_MULTIBOOT_CORE", keep=True),
Cell("CONFIG_SEDC_CORE", keep=True),
Cell("CONFIG_WDT_CORE", keep=True),
Cell("DDRDLL_CORE"),
Cell("DLLDEL_CORE"),
Cell("DPHY_CORE"),
Cell("DQSBUF_CORE"),
Cell("ECLKDIV_CORE"),
Cell("ECLKSYNC_CORE"),
Cell("FBMUX_CORE"),
Cell("GSR_CORE"),
Cell("I2CFIFO_CORE"),
Cell("LRAM_CORE"),
Cell("MULT18_CORE"),
Cell("MULT18X36_CORE"),
Cell("MULT36_CORE"),
Cell("MULT9_CORE"),
Cell("OSC_CORE"),
Cell("PCIE_CORE"),
Cell("PLL_CORE"),
Cell("PREADD9_CORE"),
Cell("REFMUX_CORE"),
Cell("REG18_CORE"),
Cell("SEIO18_CORE"),
Cell("SEIO33_CORE"),
Cell("SGMIICDR_CORE"),
])
]
def xtract_cells_decl(device, cells, dirs, outf):
fname = os.path.join(dir, device + '.v')
with open(fname) as f:
state = State.OUTSIDE
# Probably the most horrible Verilog "parser" ever written.
cell = None
for l in f:
l, _, comment = l.partition('//')
l = l.strip()
if l.startswith("module "):
cell_name = l[7:l.find('(')].strip()
cell = None
module_ports = []
iopad_pin = set()
if state != State.OUTSIDE:
print('Nested modules in {}.'.format(fname))
sys.exit(1)
for c in cells:
if c.name != cell_name:
continue
cell = c
state = State.IN_MODULE
if cell.keep:
outf.write('(* keep *)\n')
outf.write('module {} (...);\n'.format(cell.name))
cell.found = True
m = re.search(r'synthesis .*black_box_pad_pin="([^"]*)"', comment)
if m:
iopad_pin = set(m.group(1).split(","))
if cell is None:
state = State.IN_OTHER_MODULE
elif l.startswith('task '):
if state == State.IN_MODULE:
state = State.IN_TASK
elif l.startswith('function '):
if state == State.IN_MODULE:
state = State.IN_FUNCTION
elif l == 'endtask':
if state == State.IN_TASK:
state = State.IN_MODULE
elif l == 'endfunction':
if state == State.IN_FUNCTION:
state = State.IN_MODULE
elif l == 'endmodule':
if state == State.IN_MODULE:
for kind, rng, port in module_ports:
for attr in cell.port_attrs.get(port, []):
outf.write(' (* {} *)\n'.format(attr))
if port in iopad_pin:
outf.write(' (* iopad_external_pin *)\n')
if rng is None:
outf.write(' {} {};\n'.format(kind, port))
else:
outf.write(' {} {} {};\n'.format(kind, rng, port))
outf.write(l + '\n')
outf.write('\n')
elif state != State.IN_OTHER_MODULE:
print('endmodule in weird place in {}.'.format(cell.name, fname))
sys.exit(1)
state = State.OUTSIDE
elif l.startswith(('input ', 'output ', 'inout ')) and state == State.IN_MODULE:
if l.endswith((';', ',')):
l = l[:-1]
if ';' in l:
print('Weird port line in {} [{}].'.format(fname, l))
sys.exit(1)
kind, _, ports = l.partition(' ')
for port in ports.split(','):
port = port.strip()
if port.startswith('['):
rng, port = port.split()
else:
rng = None
module_ports.append((kind, rng, port))
elif l.startswith('parameter ') and state == State.IN_MODULE:
if l.endswith((';', ',')):
l = l[:-1]
while ' ' in l:
l = l.replace(' ', ' ')
if ';' in l:
print('Weird parameter line in {} [{}].'.format(fname, l))
sys.exit(1)
outf.write(' {};\n'.format(l))
if state != State.OUTSIDE:
print('endmodule not found in {}.'.format(fname))
sys.exit(1)
for cell in cells:
if not cell.found:
print('cell {} not found in {}.'.format(cell.name, fname))
if __name__ == '__main__':
parser = ArgumentParser(description='Extract Lattice blackbox cell definitions from Radiant.')
parser.add_argument('radiant_dir', nargs='?', default='/opt/lscc/radiant/2.0/')
args = parser.parse_args()
dirs = [
os.path.join(args.radiant_dir, 'cae_library/synthesis/verilog/'),
]
for dir in dirs:
if not os.path.isdir(dir):
print('{} is not a directory'.format(dir))
out = StringIO()
for device, cells in devices:
xtract_cells_decl(device, cells, dirs, out)
with open('cells_xtra.v', 'w') as f:
f.write('// Created by cells_xtra.py from Lattice models\n')
f.write('\n')
f.write(out.getvalue())
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