import argparse
from nmigen.cli import verilog
+from openpower.consts import MSR
from soc.config.test.test_loadstore import TestMemPspec
-from soc.simple.issuer import TestIssuer
+from soc.simple.issuer import TestIssuer, TestIssuerInternal
if __name__ == '__main__':
parser = argparse.ArgumentParser(description="Simple core issuer " \
"verilog generator")
parser.add_argument("output_filename")
- parser.add_argument("--enable-xics", action="store_true",
+ parser.add_argument("--enable-xics", dest='xics', action="store_true",
+ help="Enable interrupts",
+ default=True)
+ parser.add_argument("--disable-xics", dest='xics', action="store_false",
help="Disable interrupts",
+ default=False)
+ parser.add_argument("--enable-lessports", dest='lessports',
+ action="store_true",
+ help="Enable less regfile ports",
+ default=True)
+ parser.add_argument("--disable-lessports", dest='lessports',
+ action="store_false",
+ help="enable more regfile ports",
+ default=False)
+ parser.add_argument("--enable-core", dest='core', action="store_true",
+ help="Enable main core",
default=True)
- parser.add_argument("--use-pll", action="store_true", help="Enable pll",
+ parser.add_argument("--disable-core", dest='core', action="store_false",
+ help="disable main core",
+ default=False)
+ parser.add_argument("--enable-mmu", dest='mmu', action="store_true",
+ help="Enable mmu",
+ default=False)
+ parser.add_argument("--disable-mmu", dest='mmu', action="store_false",
+ help="Disable mmu",
+ default=False)
+ parser.add_argument("--enable-pll", dest='pll', action="store_true",
+ help="Enable pll",
+ default=False)
+ parser.add_argument("--disable-pll", dest='pll', action="store_false",
+ help="Disable pll",
default=False)
parser.add_argument("--enable-testgpio", action="store_true",
help="Disable gpio pins",
default=False)
+ parser.add_argument("--enable-sram4x4kblock", action="store_true",
+ help="Disable sram 4x4k block",
+ default=False)
parser.add_argument("--debug", default="jtag", help="Select debug " \
"interface [jtag | dmi] [default jtag]")
+ parser.add_argument("--enable-svp64", dest='svp64', action="store_true",
+ help="Enable SVP64",
+ default=True)
+ parser.add_argument("--disable-svp64", dest='svp64', action="store_false",
+ help="disable SVP64",
+ default=False)
+ parser.add_argument("--pc-reset", default="0",
+ help="Set PC at reset (default 0)")
+ parser.add_argument("--xlen", default=64, type=int,
+ help="Set register width [default 64]")
+ # create a module that's directly compatible as a drop-in replacement
+ # in microwatt.v
+ parser.add_argument("--microwatt-compat", dest='mwcompat',
+ action="store_true",
+ help="generate microwatt-compatible interface",
+ default=False)
+ parser.add_argument("--microwatt-compat-svp64", dest='mwcompatsvp64',
+ action="store_true",
+ help="generate microwatt-compatible interface + SVP64",
+ default=False)
+ parser.add_argument("--old-microwatt-compat", dest='old_mwcompat',
+ action="store_true",
+ help="generate old microwatt-compatible interface",
+ default=True)
+ parser.add_argument("--microwatt-debug", dest='mwdebug',
+ action="store_true",
+ help="generate old microwatt-compatible interface",
+ default=False)
+ # create a module with Fabric compatibility
+ parser.add_argument("--fabric-compat", dest='fabriccompat',
+ action="store_true",
+ help="generate Fabric-compatible interface",
+ default=False)
+ # small cache option
+ parser.add_argument("--small-cache", dest='smallcache',
+ action="store_true",
+ help="generate small caches",
+ default=False)
+
+ # allow overlaps in TestIssuer
+ parser.add_argument("--allow-overlap", dest='allow_overlap',
+ action="store_true",
+ help="allow overlap in TestIssuer",
+ default=False)
args = parser.parse_args()
+ # convenience: set some defaults
+ if args.mwcompat:
+ args.pll = False
+ args.debug = 'dmi'
+ args.core = True
+ args.xics = False
+ args.gpio = False
+ args.sram4x4kblock = False
+ args.svp64 = False
+
+ # Yes, this is duplicating mwcompat, but for the sake of simplicity
+ # adding support for svp64 like this
+ if args.mwcompatsvp64:
+ args.pll = False
+ args.debug = 'dmi'
+ args.core = True
+ args.xics = False
+ args.gpio = False
+ args.sram4x4kblock = False
+ args.svp64 = True
+ args.mwcompat = True # Ensures TestMemPspec gets the expected value
+
print(args)
units = {'alu': 1,
'mul': 1,
'shiftrot': 1
}
- pspec = TestMemPspec(ldst_ifacetype='bare_wb',
- imem_ifacetype='bare_wb',
- addr_wid=48,
+ if args.mmu:
+ units['mmu'] = 1 # enable MMU
+
+ # decide which memory type to configure
+ if args.mmu:
+ ldst_ifacetype = 'mmu_cache_wb'
+ imem_ifacetype = 'mmu_cache_wb'
+ else:
+ ldst_ifacetype = 'bare_wb'
+ imem_ifacetype = 'bare_wb'
+
+ # default MSR
+ msr_reset = (1<<MSR.LE) | (1<<MSR.SF) # 64-bit, little-endian default
+
+ # default PC
+ if args.pc_reset.startswith("0x"):
+ pc_reset = int(args.pc_reset, 16)
+ else:
+ pc_reset = int(args.pc_reset)
+
+ pspec = TestMemPspec(ldst_ifacetype=ldst_ifacetype,
+ imem_ifacetype=imem_ifacetype,
+ addr_wid=64,
mask_wid=8,
+ # pipeline and integer register file width
+ XLEN=args.xlen,
# must leave at 64
reg_wid=64,
# set to 32 for instruction-memory width=32
imem_reg_wid=64,
# set to 32 to make data wishbone bus 32-bit
#wb_data_wid=32,
- xics=args.enable_xics, # XICS interrupt controller
- #nocore=True, # to help test coriolis2 ioring
- use_pll=args.use_pll, # bypass PLL
+ xics=args.xics, # XICS interrupt controller
+ nocore=not args.core, # test coriolis2 ioring
+ regreduce = args.lessports, # less regfile ports
+ use_pll=args.pll, # bypass PLL
gpio=args.enable_testgpio, # for test purposes
+ sram4x4kblock=args.enable_sram4x4kblock, # add SRAMs
debug=args.debug, # set to jtag or dmi
- units=units)
+ svp64=args.svp64, # enable SVP64
+ microwatt_mmu=args.mmu, # enable MMU
+ microwatt_compat=args.mwcompat, # microwatt compatible
+ microwatt_old=args.old_mwcompat, # old microwatt api
+ microwatt_debug=args.mwdebug, # microwatt debug signals
+ fabric_compat=args.fabriccompat, # fabric compatible (overlaps with microwatt compat)
+ small_cache=args.smallcache, # small cache/TLB sizes
+ allow_overlap=args.allow_overlap, # allow overlap
+ units=units,
+ msr_reset=msr_reset,
+ pc_reset=pc_reset)
+ #if args.mwcompat:
+ # pspec.core_domain = 'sync'
+
+ print("mmu", pspec.__dict__["microwatt_mmu"])
+ print("nocore", pspec.__dict__["nocore"])
+ print("regreduce", pspec.__dict__["regreduce"])
+ print("gpio", pspec.__dict__["gpio"])
+ print("sram4x4kblock", pspec.__dict__["sram4x4kblock"])
+ print("xics", pspec.__dict__["xics"])
+ print("use_pll", pspec.__dict__["use_pll"])
+ print("debug", pspec.__dict__["debug"])
+ print("SVP64", pspec.__dict__["svp64"])
+ print("XLEN", pspec.__dict__["XLEN"])
+ print("MSR@reset", hex(pspec.__dict__["msr_reset"]))
+ print("PC@reset", hex(pspec.__dict__["pc_reset"]))
+ print("Microwatt compatibility", pspec.__dict__["microwatt_compat"])
+ print("Old Microwatt compatibility", pspec.__dict__["microwatt_old"])
+ print("Microwatt debug", pspec.__dict__["microwatt_debug"])
+ print("Fabric compatibility", pspec.__dict__["fabric_compat"])
+ print("Small Cache/TLB", pspec.__dict__["small_cache"])
- dut = TestIssuer(pspec)
+ if args.mwcompat:
+ dut = TestIssuerInternal(pspec)
+ name = "external_core_top"
+ else:
+ dut = TestIssuer(pspec)
+ name = "test_issuer"
- vl = verilog.convert(dut, ports=dut.external_ports(), name="test_issuer")
+ vl = verilog.convert(dut, ports=dut.external_ports(), name=name)
with open(args.output_filename, "w") as f:
f.write(vl)
projects / soc.git / blobdiff