microwatt: Update to latest

Add the new source files and bump the revision used.

Signed-off-by: Joel Stanley <joel@jms.id.au>

litex/soc/cores/cpu/microwatt/core.py

@@ -172,12 +172,13 @@ class Microwatt(CPU):
 
             # Instruction/Data Cache.
             "cache_ram.vhdl",
-            "plru.vhdl",
+            "plrufn.vhdl",
             "dcache.vhdl",
             "icache.vhdl",
 
             # Decode.
             "insn_helpers.vhdl",
+            "predecode.vhdl",
             "decode1.vhdl",
             "control.vhdl",
             "decode2.vhdl",
@@ -219,8 +220,10 @@ class Microwatt(CPU):
         from litex.build.xilinx import XilinxPlatform
         if isinstance(platform, XilinxPlatform) and not use_ghdl_yosys_plugin:
             sources.append("xilinx-mult.vhdl")
+            sources.append("xilinx-mult-32s.vhdl")
         else:
             sources.append("multiply.vhdl")
+            sources.append("multiply-32s.vhdl")
         sdir = get_data_mod("cpu", "microwatt").data_location
         cdir = os.path.dirname(__file__)
         self.cpu_vhd2v_converter.add_sources(sdir, *sources)

litex_setup.py

@@ -112,7 +112,7 @@ git_repos = {
     "pythondata-cpu-marocchino":   GitRepo(url="https://github.com/litex-hub/"),
 
     # OpenPower CPU(s).
-    "pythondata-cpu-microwatt":    GitRepo(url="https://github.com/litex-hub/", sha1=0xb940b55acff),
+    "pythondata-cpu-microwatt":    GitRepo(url="https://github.com/litex-hub/", sha1=0xb4986b23af6),
 
     # RISC-V CPU(s).
     "pythondata-cpu-blackparrot":  GitRepo(url="https://github.com/litex-hub/"),