build/lattice/icestorm: increase similarities with trellis.

litex/build/lattice/icestorm.py

@@ -37,10 +37,10 @@ def _build_pre_pack(vns, clocks):
 
 # Yosys/Nextpnr Helpers/Templates ------------------------------------------------------------------
 
-yosys_template = [
+_yosys_template = [
     "{read_files}",
     "attrmap -tocase keep -imap keep=\"true\" keep=1 -imap keep=\"false\" keep=0 -remove keep=0",
-    "synth_ice40 {synth_opts} -top {build_name} -json {build_name}.json",
+    "synth_ice40 {synth_opts} -json {build_name}.json -top {build_name}",
 ]
 
 def _yosys_import_sources(platform):
@@ -76,24 +76,25 @@ def parse_device(device):
         "up5k": ["sg48", "uwg30"],
     }
 
-    (family, serie, package) = device.split("-")
+    (family, architecture, package) = device.split("-")
     if family not in ["ice40"]:
         raise ValueError("Unknown device family {}".format(family))
-    if serie not in ["lp384", "lp1k", "hx1k", "lp8k", "hx8k", "up5k"]:
-        raise ValueError("Invalid device serie {}".format(serie))
-    if package not in packages[serie]:
+    if architecture not in ["lp384", "lp1k", "hx1k", "lp8k", "hx8k", "up5k"]:
+        raise ValueError("Invalid device architecture {}".format(architecture))
+    if package not in packages[architecture]:
         raise ValueError("Invalid device package {}".format(package))
-    return (family, serie, package)
+    return (family, architecture, package)
 
 # Script -------------------------------------------------------------------------------------------
 
-build_template = [
+_build_template = [
     "yosys -q -l {build_name}.rpt {build_name}.ys",
-    "nextpnr-ice40 {pnr_pkg_opts} --pcf {build_name}.pcf --json {build_name}.json --asc {build_name}.txt --pre-pack {build_name}_pre_pack.py",
+    "nextpnr-ice40 --json {build_name}.json --pcf {build_name}.pcf --asc {build_name}.txt \
+    --pre-pack {build_name}_pre_pack.py --{architecture} --package {package}",
     "icepack {build_name}.txt {build_name}.bin"
 ]
 
-def _build_script(build_template, build_name, **kwargs):
+def _build_script(build_template, build_name, architecture, package):
     if sys.platform in ("win32", "cygwin"):
         script_ext = ".bat"
         build_script_contents = "@echo off\nrem Autogenerated by LiteX / git: " + tools.get_litex_git_revision() + "\n\n"
@@ -105,7 +106,11 @@ def _build_script(build_template, build_name, **kwargs):
 
     for s in build_template:
         s_fail = s + "{fail_stmt}\n"  # Required so Windows scripts fail early.
-        build_script_contents += s_fail.format(build_name=build_name, fail_stmt=fail_stmt, **kwargs)
+        build_script_contents += s_fail.format(
+            build_name   = build_name,
+            architecture = architecture,
+            package      = package,
+            fail_stmt    = fail_stmt)
 
     build_script_file = "build_" + build_name + script_ext
     tools.write_to_file(build_script_file, build_script_contents,force_unix=False)
@@ -139,8 +144,8 @@ class LatticeIceStormToolchain:
     special_overrides = common.lattice_ice40_special_overrides
 
     def __init__(self):
-        self.yosys_template = yosys_template
-        self.build_template = build_template
+        self.yosys_template = _yosys_template
+        self.build_template = _build_template
         self.clocks         = dict()
 
     def build(self, platform, fragment,
@@ -178,11 +183,10 @@ def build(self, platform, fragment,
         _build_yosys(self.yosys_template, platform, build_name, synth_opts=synth_opts)
 
         # Translate device to Nextpnr architecture/package
-        (family, serie, package) = parse_device(platform.device)
-        pnr_pkg_opts = "--" + serie + " --package " + package
+        (family, architecture, package) = parse_device(platform.device)
 
         # Generate build script
-        script = _build_script(self.build_template, build_name, pnr_pkg_opts=pnr_pkg_opts)
+        script = _build_script(self.build_template, build_name, architecture, package)
 
         # Run
         if run: