Add testbench targets on top-level

The testbenches live in their own Makefiles under
hw/application_fpga/core/*/toolruns (except picorv32). Let's add a
top-level target to build and run them.

In order to run core testbenches, use

  cd hw/application_fpga
  make tb

or if using Podman:

  cd contrib
  make run-tb

to run the same target in a container.

contrib/Makefile

@@ -1,3 +1,5 @@
+# Copyright (C) 2024 - Tillitis AB
+# SPDX-License-Identifier: GPL-2.0-only
 
 # image produced by build-image targets
 BUILDIMAGE=tkey-builder-local
@@ -9,6 +11,7 @@ all:
 	@echo "Targets:"
 	@echo "run                   Run a shell using image '$(IMAGE)' (Podman)"
 	@echo "run-make              Build the FPGA bitstream using image '$(IMAGE)' (Podman)"
+	@echo "run-tb                Run all the testbenches using image '$(IMAGE)' (Podman)"
 	@echo "run-make-no-clean     Like run-make but without cleaning first, useful for iterative firmware dev"
 	@echo "run-make-clean_fw     Like run-make but cleans only firmware"
 	@echo "flash                 Program the SPI flash on the TKey - needs an existing bitstream"
@@ -30,6 +33,10 @@ run-make:
 	podman run --rm --mount type=bind,source="`pwd`/../hw/application_fpga",target=/build -w /build -it \
 	 $(IMAGE) make clean application_fpga.bin
 
+run-tb:
+	podman run --rm --mount type=bind,source="`pwd`/../hw/application_fpga",target=/build -w /build -it \
+	 $(IMAGE) make tb
+
 run-make-testfw:
 	podman run --rm --mount type=bind,source="`pwd`/../hw/application_fpga",target=/build -w /build -it \
 	 $(IMAGE) make clean application_fpga_testfw.bin

hw/application_fpga/Makefile

@@ -6,9 +6,13 @@
 # HW targets as well as its firmware.
 #
 #
-# Copyright (C) 2022, 2023 - Tillitis AB
+# Copyright (C) 2022-2024 - Tillitis AB
 # SPDX-License-Identifier: GPL-2.0-only
 #
+#
+# Please note: When creating a new cores and adding more testbenches,
+# please update the tb target below to include it as well.
+#
 #=======================================================================
 
 #-------------------------------------------------------------------
@@ -207,6 +211,18 @@ verilator: $(VERILATOR_FPGA_SRC) $(VERILOG_SRCS) firmware.hex $(ICE40_SIM_CELLS)
 	make -C verilated -f Vapplication_fpga.mk
 .PHONY: verilator
 
+#-------------------------------------------------------------------
+# Run all testbenches
+#-------------------------------------------------------------------
+tb:
+	make -C core/timer/toolruns sim-top
+	make -C core/tk1/toolruns sim-top
+	make -C core/touch_sense/toolruns sim-top
+	make -C core/trng/toolruns sim-top
+	make -C core/uart/toolruns sim-top
+	make -C core/uds/toolruns sim-top
+
+.PHONY: tb
 
 #-------------------------------------------------------------------
 # Main FPGA build flow.
@@ -333,6 +349,7 @@ help:
 	@echo "bram_fw.hex        Build a fake BRAM file that will be filled in later after place-n-route."
 	@echo "verilator          Build Verilator simulation program"
 	@echo "lint               Run lint on Verilog source files."
+	@echo "tb                 Run all testbenches"
 	@echo "prog_flash         Program device flash with FGPA bitstream including firmware (using the RPi Pico-based programmer)."
 	@echo "prog_flash_testfw  Program device flash as above, but with testfw."
 	@echo "clean              Delete all generated files."