Add LS0/RS0 tile fixed connection fuzzing.

fuzzers/machxo2/050-pio_routing/fuzzer.py

diff --git a/fuzzers/machxo2/050-pio_routing/fuzzer.py b/fuzzers/machxo2/050-pio_routing/fuzzer.py
index 214908c..7dd07c2 100644
--- a/fuzzers/machxo2/050-pio_routing/fuzzer.py
+++ b/fuzzers/machxo2/050-pio_routing/fuzzer.py
@@ -58,6 +58,8 @@
            "missing_nets" : None,
            "bank" : "L"
         },
+
+        # 4
         {
            "pos" : (10, 22),
            "cfg" : FuzzConfig(job="PIOROUTER", family="MachXO2", device="LCMXO2-1200HC", ncl="pioroute.ncl",
@@ -79,6 +81,22 @@
            "missing_nets" : None,
            "bank" : None,
         },
+        {
+           "pos" : (9, 1),
+           "cfg" : FuzzConfig(job="PIOROUTELS0", family="MachXO2", device="LCMXO2-1200HC", ncl="pioroute.ncl",
+                                  tiles=["PL9:PIC_LS0"]),
+           "missing_nets" : None,
+           "bank" : "LS",
+        },
+
+        # 8
+        {
+           "pos" : (3, 22),
+           "cfg" : FuzzConfig(job="PIOROUTERS0", family="MachXO2", device="LCMXO2-1200HC", ncl="pioroute.ncl",
+                                  tiles=["PR3:PIC_RS0"]),
+           "missing_nets" : None,
+           "bank" : "RS",
+        },
 ]
 
 def main(args):
@@ -108,10 +126,12 @@
         if args.p and job["bank"]:
             # I/O connections in the left/right tiles exist as-if a column "0"
             # or one past maximum is physically present.
-            if job["bank"] == "R":
-                io_nets = mk_nets.io_conns((job["pos"][0], job["pos"][1] + 1), job["bank"])
-            elif job["bank"] == "L":
-                io_nets = mk_nets.io_conns((job["pos"][0], job["pos"][1] - 1), job["bank"])
+            if job["bank"].startswith("R"):
+                ab_only = job["bank"].endswith("S")
+                io_nets = mk_nets.io_conns((job["pos"][0], job["pos"][1] + 1), job["bank"], ab_only)
+            elif job["bank"].startswith("L"):
+                ab_only = job["bank"].endswith("S")
+                io_nets = mk_nets.io_conns((job["pos"][0], job["pos"][1] - 1), job["bank"], ab_only)
             else:
                 io_nets = mk_nets.io_conns(job["pos"][0], job["bank"])
 

fuzzers/machxo2/050-pio_routing/mk_nets.py

diff --git a/fuzzers/machxo2/050-pio_routing/mk_nets.py b/fuzzers/machxo2/050-pio_routing/mk_nets.py
index 308b667..8648e26 100644
--- a/fuzzers/machxo2/050-pio_routing/mk_nets.py
+++ b/fuzzers/machxo2/050-pio_routing/mk_nets.py
@@ -3,7 +3,7 @@
 from collections import defaultdict
 import re
 
-def io_conns(tile, bank):
+def io_conns(tile, bank, ab_only=False):
     # All I/O connections on the left bank are contained in the other banks.
     all_template = [
         ("JPADDO{}", "sink"),
@@ -55,7 +55,7 @@
         bank_template = bottom
     elif bank == "T":
         bank_template = top
-    elif bank == "R":
+    elif bank.startswith("R"):
         bank_template = right
     else:
         bank_template = []
@@ -69,7 +69,12 @@
     eclk_re = re.compile("ECLKC*")
 
     netlist = []
-    for pad in ("A", "B", "C", "D"):
+    if ab_only:
+        pads = ("A", "B")
+    else:
+        pads = ("A", "B", "C", "D")
+
+    for pad in pads:
         # B/BS/T/TSIOLOGIC
         if bank in ("B", "T"):
             if pad == "A":
@@ -79,7 +84,7 @@
             else:
                 io_prefix = ""
         # RIOLOGIC
-        elif bank == "R":
+        elif bank.startswith("R"):
             io_prefix = "R"
         # Just "LOGIC"
         else:
@@ -89,7 +94,7 @@
             suffix = f.format(pad, io_prefix)
             netlist.append(("R{}C{}_{}".format(tile[0], tile[1], suffix), d))
 
-        if bank == "R":
+        if bank.startswith("R"):
             for f, d in bank_template:
                 suffix = f.format(pad, io_prefix)
                 netlist.append(("R{}C{}_{}".format(tile[0], tile[1], suffix), d))
@@ -127,11 +132,14 @@
     return netlist
 
 def main():
-    for t, b in zip(((10, 0), (12, 11), (10, 23), (1, 11)), ("L", "B", "R", "T")):
-        print("Bank {}:".format(b))
-        for i, n in enumerate(io_conns(t, b)):
-            print(i, n)
-        print("")
+    for t, b, ab in zip(
+        ((10, 0), (12, 11), (10, 23), (1, 11), (9, 0), (3, 23)),
+        ("L", "B", "R", "T", "LS", "RS"),
+        (False, False, False, False, True, True)):
+            print("Bank {} (AB only={}):".format(b, ab))
+            for i, n in enumerate(io_conns(t, b, ab)):
+                print(i, n)
+            print("")
 
 if __name__ == "__main__":
     main()