do not use wildcard imports

diff --git a/src/soc/litex/florent/sim.py b/src/soc/litex/florent/sim.py
index 9e4a5d3fc1586521e33d725d4141cb3559421632..a24833d800e1459470a82c43273ede009a4dffab 100755 (executable)
--- a/src/soc/litex/florent/sim.py
+++ b/src/soc/litex/florent/sim.py
@@ -1,22 +1,25 @@
 #!/usr/bin/env python3
 
+import os
 import argparse
 
-from migen import *
+from migen import Signal, FSM
 
-from litex.build.generic_platform import *
+from litex.build.generic_platform import Pins, Subsignal
 from litex.build.sim import SimPlatform
+from litex.build.io import CRG
 from litex.build.sim.config import SimConfig
 
-from litex.soc.integration.soc_core import *
-from litex.soc.integration.builder import *
+from litex.soc.integration.soc import SoCRegion
+from litex.soc.integration.soc_core import SoCCore
+from litex.soc.integration.builder import Builder
 
 from litex.tools.litex_sim import Platform
 
 from libresoc import LibreSoC
 from microwatt import Microwatt
 
-# LibreSoCSim --------------------------------------------------------------------------------------
+# LibreSoCSim -----------------------------------------------------------------
 
 class LibreSoCSim(SoCCore):
     def __init__(self, cpu="libresoc", debug=False):
@@ -24,19 +27,20 @@ class LibreSoCSim(SoCCore):
         platform     = Platform()
         sys_clk_freq = int(1e6)
 
-        # SoCCore ----------------------------------------------------------------------------------
+        # SoCCore -------------------------------------------------------------
         SoCCore.__init__(self, platform, clk_freq=sys_clk_freq,
             cpu_type                 = "microwatt",
-            cpu_cls                  = LibreSoC   if cpu == "libresoc" else Microwatt,
+            cpu_cls                  = LibreSoC   if cpu == "libresoc" \
+                                       else Microwatt,
             uart_name                = "sim",
             integrated_rom_size      = 0x10000,
             integrated_main_ram_size = 0x10000000) # 256MB
         self.platform.name = "sim"
 
-        # CRG --------------------------------------------------------------------------------------
+        # CRG -----------------------------------------------------------------
         self.submodules.crg = CRG(platform.request("sys_clk"))
 
-        # Debug ------------------------------------------------------------------------------------
+        # Debug ---------------------------------------------------------------
         if debug:
             uptime = Signal(64)
             self.sync += uptime.eq(uptime + 1)
@@ -71,15 +75,20 @@ class LibreSoCSim(SoCCore):
             # Stop after 20000 cycles
             self.sync += If(uptime == 100000, Finish())
 
-# Build --------------------------------------------------------------------------------------------
+# Build -----------------------------------------------------------------------
 
 def main():
-    parser = argparse.ArgumentParser(description="LiteX LibreSoC CPU Simulation")
-    parser.add_argument("--cpu",          default="libresoc",  help="CPU to use: libresoc (default) or microwatt")
-    parser.add_argument("--debug",        action="store_true", help="Enable debug traces")
-    parser.add_argument("--trace",        action="store_true", help="Enable tracing")
-    parser.add_argument("--trace-start",  default=0,           help="Cycle to start FST tracing")
-    parser.add_argument("--trace-end",    default=-1,          help="Cycle to end FST tracing")
+    parser = argparse.ArgumentParser(description="LiteX LibreSoC CPU Sim")
+    parser.add_argument("--cpu",          default="libresoc",
+                        help="CPU to use: libresoc (default) or microwatt")
+    parser.add_argument("--debug",        action="store_true",
+                        help="Enable debug traces")
+    parser.add_argument("--trace",        action="store_true",
+                        help="Enable tracing")
+    parser.add_argument("--trace-start",  default=0,
+                        help="Cycle to start FST tracing")
+    parser.add_argument("--trace-end",    default=-1,
+                        help="Cycle to end FST tracing")
     args = parser.parse_args()
 
     sim_config = SimConfig(default_clk="sys_clk")