make: add tapeout makefile

target/tapeout/Makefile

@@ -0,0 +1,55 @@
+
+
+##########################
+# Default configurations #
+##########################
+
+MKFILE_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
+MKFILE_DIR  := $(dir $(MKFILE_PATH))
+ROOT        := $(MKFILE_DIR)../..
+BENDER      := bender
+SNITCH_ROOT := $(shell $(BENDER) path snitch_cluster)
+
+OCCAMYGEN  ?= $(ROOT)/util/occamygen/occamygen.py
+
+TARGET_RTL			 ?= $(ROOT)/target/rtl
+
+#######################
+# Config prerequisite #
+#######################
+
+# If the configuration file is overriden on the command-line (through
+# CFG_OVERRIDE) and this file differs from the least recently used
+# (LRU) config, all targets depending on the configuration file have
+# to be rebuilt. This file is used to express this condition as a
+# prerequisite for other rules.
+CFG = $(TARGET_RTL)/cfg/occamy_cfg/lru.hjson
+
+$(CFG): FORCE
+	@# If the LRU config file doesn't exist, we use the default config.
+	@if [ ! -e $@ ] ; then \
+		DEFAULT_CFG="$(TARGET_RTL)/cfg/occamy_cfg/snax_two_clusters.hjson"; \
+		echo "Using default config file: $$DEFAULT_CFG"; \
+		cp $$DEFAULT_CFG $@; \
+	fi
+	@# If a config file is provided on the command-line 
+	@# then we override the LRU file with it
+	@if [ $(CFG_OVERRIDE) ] ; then \
+		echo "Overriding config file with: $(CFG_OVERRIDE)"; \
+		cp $(CFG_OVERRIDE) $@; \
+	fi
+FORCE:
+
+########################
+# Generating Filelists #
+########################
+
+syn-gen-list:
+	@$(OCCAMYGEN) --cfg $(CFG) --outdir ${MKFILE_DIR} --cluster-only-flist ${SNITCH_ROOT}
+
+debug-info:
+	@echo "SNITCH ROOT: ${SNITCH_ROOT}"
+	@echo "CFG override: ${CFG_OVERRIDE}"
+	@echo "Makefile path: ${MKFILE_PATH}"
+	@echo "Makefile dir: ${MKFILE_DIR}"
+