add microwatt external core build target to Makefile

diff --git a/Makefile b/Makefile
index 3d4ea62db5a779f896d1f59665014783681f0523..20bce282fdd9dc00c6ecea00bb78c6061dcb72f8 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -56,6 +56,11 @@ ls180_4k_verilog:
                --enable-xics --enable-sram4x4kblock --disable-svp64 \
                        src/soc/litex/florent/libresoc/libresoc.v
 
+# build microwatt "external core"
+microwatt_external_core:
+       python3 simple/issuer_verilog.py --microwatt-compat --enable-mmu \
+            external_core_top.v
+
 # build the litex libresoc SoC without 4k SRAMs
 ls180_verilog_build: ls180_verilog
        make -C soc/soc/litex/florent ls180