Adds apicula toolchain to gowin platform
This commit is contained in:
parent
3d0fe4ebca
commit
e0968b3574
|
@ -0,0 +1,46 @@
|
||||||
|
from litex.build.generic_platform import *
|
||||||
|
from litex.build import tools
|
||||||
|
from litex.build.gowin.gowin import _build_cst
|
||||||
|
from litex.build.yosys_nextpnr_toolchain import YosysNextPNRToolchain
|
||||||
|
|
||||||
|
class GowinApiculaToolchain(YosysNextPNRToolchain):
|
||||||
|
family = "gowin"
|
||||||
|
synth_fmt = "json"
|
||||||
|
pnr_fmt = "report"
|
||||||
|
packer_cmd = "gowin_pack"
|
||||||
|
|
||||||
|
def __init__(self):
|
||||||
|
super().__init__()
|
||||||
|
self.additional_cst_commands = []
|
||||||
|
|
||||||
|
def build_timing_constraints(self, vns):
|
||||||
|
# nextpnr-himbaechel for gowin currently doesnt supports timing constaints
|
||||||
|
pass
|
||||||
|
|
||||||
|
def build_io_constraints(self):
|
||||||
|
_build_cst(self.named_sc, self.named_pc, self.additional_cst_commands, self._build_name)
|
||||||
|
return (self._build_name + ".cst", "CST")
|
||||||
|
|
||||||
|
def finalize(self):
|
||||||
|
pnr_opts = "--write {top}_routed.json --top {top} --device {device}" + \
|
||||||
|
" --vopt family={devicename} --vopt cst={top}.cst"
|
||||||
|
self._pnr_opts += pnr_opts.format(
|
||||||
|
top = self._build_name,
|
||||||
|
device = self.platform.device,
|
||||||
|
devicename = self.platform.devicename
|
||||||
|
)
|
||||||
|
|
||||||
|
self._packer_opts += "-d {devicename} -o {top}.fs {top}_routed.json".format(
|
||||||
|
devicename = self.platform.devicename,
|
||||||
|
top = self._build_name
|
||||||
|
)
|
||||||
|
|
||||||
|
YosysNextPNRToolchain.finalize(self)
|
||||||
|
|
||||||
|
# family is gowin but NextPNRWrapper needs to call 'nextpnr-himbaechel' not 'nextpnr-gowin'
|
||||||
|
self._nextpnr.name = "nextpnr-himbaechel"
|
||||||
|
|
||||||
|
def build(self, platform, fragment, **kwargs):
|
||||||
|
self.platform = platform
|
||||||
|
|
||||||
|
return YosysNextPNRToolchain.build(self, platform, fragment, **kwargs)
|
|
@ -17,6 +17,61 @@ from litex.build.generic_toolchain import GenericToolchain
|
||||||
from litex.build.generic_platform import *
|
from litex.build.generic_platform import *
|
||||||
from litex.build import tools
|
from litex.build import tools
|
||||||
|
|
||||||
|
# Constraints (.cst) -------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
def _build_cst(named_sc, named_pc, additional_cst_commands, build_name):
|
||||||
|
cst = []
|
||||||
|
|
||||||
|
flat_sc = []
|
||||||
|
for name, pins, other, resource in named_sc:
|
||||||
|
if len(pins) > 1:
|
||||||
|
for i, p in enumerate(pins):
|
||||||
|
flat_sc.append((f"{name}[{i}]", p, other))
|
||||||
|
else:
|
||||||
|
flat_sc.append((name, pins[0], other))
|
||||||
|
|
||||||
|
def _search_pin_entry(pin_lst, pin_name):
|
||||||
|
for name, pin, other in pin_lst:
|
||||||
|
if pin_name == name:
|
||||||
|
return (name, pin, other)
|
||||||
|
return (None, None, None)
|
||||||
|
|
||||||
|
for name, pin, other in flat_sc:
|
||||||
|
if pin != "X":
|
||||||
|
t_name = name.split('[') # avoid index pins
|
||||||
|
tmp_name = t_name[0]
|
||||||
|
if tmp_name[-2:] == "_p":
|
||||||
|
pn = tmp_name[:-2] + "_n"
|
||||||
|
if len(t_name) > 1:
|
||||||
|
pn += '[' + t_name[1]
|
||||||
|
(_, n_pin, _) = _search_pin_entry(flat_sc, pn)
|
||||||
|
if n_pin is not None:
|
||||||
|
pin = f"{pin},{n_pin}"
|
||||||
|
elif tmp_name[-2:] == "_n":
|
||||||
|
pp = tmp_name[:-2] + "_p"
|
||||||
|
if len(t_name) > 1:
|
||||||
|
pp += '[' + t_name[1]
|
||||||
|
(p_name, _, _) = _search_pin_entry(flat_sc, pp)
|
||||||
|
if p_name is not None:
|
||||||
|
continue
|
||||||
|
cst.append(f"IO_LOC \"{name}\" {pin};")
|
||||||
|
|
||||||
|
other_cst = []
|
||||||
|
for c in other:
|
||||||
|
if isinstance(c, IOStandard):
|
||||||
|
other_cst.append(f"IO_TYPE={c.name}")
|
||||||
|
elif isinstance(c, Misc):
|
||||||
|
other_cst.append(f"{c.misc}")
|
||||||
|
if len(other_cst):
|
||||||
|
t = " ".join(other_cst)
|
||||||
|
cst.append(f"IO_PORT \"{name}\" {t};")
|
||||||
|
|
||||||
|
if named_pc:
|
||||||
|
cst.extend(named_pc)
|
||||||
|
|
||||||
|
cst.extend(additional_cst_commands)
|
||||||
|
|
||||||
|
tools.write_to_file(build_name + ".cst", "\n".join(cst))
|
||||||
|
|
||||||
# GowinToolchain -----------------------------------------------------------------------------------
|
# GowinToolchain -----------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
@ -60,58 +115,7 @@ class GowinToolchain(GenericToolchain):
|
||||||
# Constraints (.cst ) --------------------------------------------------------------------------
|
# Constraints (.cst ) --------------------------------------------------------------------------
|
||||||
|
|
||||||
def build_io_constraints(self):
|
def build_io_constraints(self):
|
||||||
cst = []
|
_build_cst(self.named_sc, self.named_pc, self.additional_cst_commands, self._build_name)
|
||||||
|
|
||||||
flat_sc = []
|
|
||||||
for name, pins, other, resource in self.named_sc:
|
|
||||||
if len(pins) > 1:
|
|
||||||
for i, p in enumerate(pins):
|
|
||||||
flat_sc.append((f"{name}[{i}]", p, other))
|
|
||||||
else:
|
|
||||||
flat_sc.append((name, pins[0], other))
|
|
||||||
|
|
||||||
def _search_pin_entry(pin_lst, pin_name):
|
|
||||||
for name, pin, other in pin_lst:
|
|
||||||
if pin_name == name:
|
|
||||||
return (name, pin, other)
|
|
||||||
return (None, None, None)
|
|
||||||
|
|
||||||
for name, pin, other in flat_sc:
|
|
||||||
if pin != "X":
|
|
||||||
t_name = name.split('[') # avoid index pins
|
|
||||||
tmp_name = t_name[0]
|
|
||||||
if tmp_name[-2:] == "_p":
|
|
||||||
pn = tmp_name[:-2] + "_n"
|
|
||||||
if len(t_name) > 1:
|
|
||||||
pn += '[' + t_name[1]
|
|
||||||
(_, n_pin, _) = _search_pin_entry(flat_sc, pn)
|
|
||||||
if n_pin is not None:
|
|
||||||
pin = f"{pin},{n_pin}"
|
|
||||||
elif tmp_name[-2:] == "_n":
|
|
||||||
pp = tmp_name[:-2] + "_p"
|
|
||||||
if len(t_name) > 1:
|
|
||||||
pp += '[' + t_name[1]
|
|
||||||
(p_name, _, _) = _search_pin_entry(flat_sc, pp)
|
|
||||||
if p_name is not None:
|
|
||||||
continue
|
|
||||||
cst.append(f"IO_LOC \"{name}\" {pin};")
|
|
||||||
|
|
||||||
other_cst = []
|
|
||||||
for c in other:
|
|
||||||
if isinstance(c, IOStandard):
|
|
||||||
other_cst.append(f"IO_TYPE={c.name}")
|
|
||||||
elif isinstance(c, Misc):
|
|
||||||
other_cst.append(f"{c.misc}")
|
|
||||||
if len(other_cst):
|
|
||||||
t = " ".join(other_cst)
|
|
||||||
cst.append(f"IO_PORT \"{name}\" {t};")
|
|
||||||
|
|
||||||
if self.named_pc:
|
|
||||||
cst.extend(self.named_pc)
|
|
||||||
|
|
||||||
cst.extend(self.additional_cst_commands)
|
|
||||||
|
|
||||||
tools.write_to_file(f"{self._build_name}.cst", "\n".join(cst))
|
|
||||||
return (f"{self._build_name}.cst", "CST")
|
return (f"{self._build_name}.cst", "CST")
|
||||||
|
|
||||||
# Timing Constraints (.sdc ) -------------------------------------------------------------------
|
# Timing Constraints (.sdc ) -------------------------------------------------------------------
|
||||||
|
|
|
@ -8,7 +8,7 @@
|
||||||
import os
|
import os
|
||||||
|
|
||||||
from litex.build.generic_platform import GenericPlatform
|
from litex.build.generic_platform import GenericPlatform
|
||||||
from litex.build.gowin import common, gowin
|
from litex.build.gowin import common, gowin, apicula
|
||||||
|
|
||||||
# GowinPlatform ------------------------------------------------------------------------------------
|
# GowinPlatform ------------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
@ -28,7 +28,7 @@ class GowinPlatform(GenericPlatform):
|
||||||
if toolchain == "gowin":
|
if toolchain == "gowin":
|
||||||
self.toolchain = gowin.GowinToolchain()
|
self.toolchain = gowin.GowinToolchain()
|
||||||
elif toolchain == "apicula":
|
elif toolchain == "apicula":
|
||||||
raise ValueError("Apicula toolchain needs more work")
|
self.toolchain = apicula.GowinApiculaToolchain()
|
||||||
else:
|
else:
|
||||||
raise ValueError(f"Unknown toolchain {toolchain}")
|
raise ValueError(f"Unknown toolchain {toolchain}")
|
||||||
|
|
||||||
|
|
|
@ -83,9 +83,10 @@ class NextPNRWrapper():
|
||||||
=======
|
=======
|
||||||
str containing instruction and/or rule
|
str containing instruction and/or rule
|
||||||
"""
|
"""
|
||||||
cmd = "{pnr_name} --{in_fmt} {build_name}.{in_fmt} --{constr_fmt}" + \
|
cmd = "{pnr_name} --{in_fmt} {build_name}.{in_fmt}"
|
||||||
" {build_name}.{constr_fmt}" + \
|
if self._constr_format != "":
|
||||||
" --{out_fmt} {build_name}.{out_ext} {pnr_opts}"
|
cmd += " --{constr_fmt} {build_name}.{constr_fmt}"
|
||||||
|
cmd += " --{out_fmt} {build_name}.{out_ext} {pnr_opts}"
|
||||||
base_cmd = cmd.format(
|
base_cmd = cmd.format(
|
||||||
pnr_name = self.name,
|
pnr_name = self.name,
|
||||||
build_name = self._build_name,
|
build_name = self._build_name,
|
||||||
|
|
Loading…
Reference in New Issue