litex/make.py

100 lines
3.8 KiB
Python
Executable File

#!/usr/bin/env python3
import argparse, importlib, subprocess, struct
from mibuild.tools import write_to_file
from misoclib.gensoc import cpuif
from misoclib.s6ddrphy import initsequence
import jtag
def _get_args():
parser = argparse.ArgumentParser(description="MiSoC - a high performance SoC based on Migen.")
parser.add_argument("-p", "--platform", default="mixxeo", help="platform to build for")
parser.add_argument("-t", "--target", default="mlabs_video", help="SoC type to build")
parser.add_argument("-s", "--sub-target", default="", help="variant of the SoC type to build")
parser.add_argument("-o", "--option", default=[], nargs=2, action="append", help="set target-specific option")
parser.add_argument("-Xp", "--external-platform", default="", help="use external platform file in the specified path")
parser.add_argument("-Xt", "--external-target", default="", help="use external target file in the specified path")
parser.add_argument("-B", "--no-bitstream", default=False, action="store_true", help="do not build bitstream file")
parser.add_argument("-H", "--no-header", default=False, action="store_true", help="do not build C header files with CSR/IRQ/SDRAM_PHY definitions")
parser.add_argument("-c", "--csr-csv", default="", help="save CSR map into CSV file")
parser.add_argument("-l", "--load", default=False, action="store_true", help="load bitstream to FPGA volatile memory")
parser.add_argument("-f", "--flash", default=False, action="store_true", help="load bitstream to flash")
return parser.parse_args()
def _misoc_import(default, external, name):
if external:
loader = importlib.find_loader(name, [external])
if loader is None:
raise ImportError("Module not found: "+name)
return loader.load_module()
else:
return importlib.import_module(default + "." + name)
def main():
args = _get_args()
platform_module = _misoc_import("mibuild.platforms", args.external_platform, args.platform)
target_module = _misoc_import("targets", args.external_target, args.target)
platform = platform_module.Platform()
if args.sub_target:
top_class = getattr(target_module, args.sub_target)
else:
top_class = target_module.get_default_subtarget(platform)
build_name = top_class.__name__.lower() + "-" + args.platform
top_kwargs = dict((k, eval(v)) for k, v in args.option)
soc = top_class(platform, **top_kwargs)
soc.finalize()
if not args.no_header:
boilerplate = """/*
* Platform: {}
* Target: {}
* Subtarget: {}
*/
""".format(args.platform, args.target, top_class.__name__)
linker_header = cpuif.get_linker_regions(soc.cpu_memory_regions)
write_to_file("software/include/generated/regions.ld", boilerplate + linker_header)
csr_header = cpuif.get_csr_header(soc.csr_base, soc.csrbankarray, soc.interrupt_map)
write_to_file("software/include/generated/csr.h", boilerplate + csr_header)
sdram_phy_header = initsequence.get_sdram_phy_header(soc.ddrphy)
write_to_file("software/include/generated/sdram_phy.h", boilerplate + sdram_phy_header)
if args.csr_csv:
csr_csv = cpuif.get_csr_csv(soc.csr_base, soc.csrbankarray)
write_to_file(args.csr_csv, csr_csv)
if hasattr(soc, "init_bios_memory"):
ret = subprocess.call(["make", "-C", "software/bios"])
if ret:
raise OSError("BIOS build failed")
bios_file = open("software/bios/bios.bin", "rb")
bios_data = []
while True:
w = bios_file.read(4)
if not w:
break
bios_data.append(struct.unpack(">I", w)[0])
bios_file.close()
soc.init_bios_memory(bios_data)
if not args.no_bitstream:
platform.build(soc, build_name=build_name)
subprocess.call(["tools/byteswap",
"build/" + build_name + ".bin",
"build/" + build_name + ".fpg"])
if args.load:
jtag.load("build/" + build_name + ".bit")
if args.flash:
jtag.flash("build/" + build_name + ".fpg")
if __name__ == "__main__":
main()