Makefile: Use modeswitch tool in Makefile.

Fixes #263.

Author: mithro

Makefile

@@ -67,6 +67,14 @@ FLASHEXTRA_CMD = \
     $(PROGRAMMER_OPTION) \
     $(BOARD)
 
+MODESWITCH_CMD = \
+  hdmi2usb-mode-switch \
+    --by-type=$(BOARD) \
+    --verbose
+
+MODEINFO_CMD = \
+  hdmi2usb-find-board \
+    --by-type=$(BOARD)
 
 ifeq ($(OS),Windows_NT)
 	FLTERM = $(PYTHON) $(MSCDIR)/tools/flterm.py
@@ -146,13 +154,15 @@ download-prebuilt:
 
 # Load
 load-gateware:
+	$(MODESWITCH_CMD) --mode=jtag
 	$(MAKEPY_CMD) load-bitstream
 
 load: load-gateware $(addprefix load-,$(TARGETS))
 	@true
 
 # Flash
 flash-gateware: gateware-submodules
+	$(MODESWITCH_CMD) --mode=jtag
 	$(MAKEPY_CMD) flash-bitstream
 	@echo ""
 	@echo ""

Makefile.fx2

@@ -34,7 +34,7 @@ embed-fx2: firmware/lm32/fx2_fw_hdmi2usb.c
 	@true
 
 load-fx2: firmware/fx2/hdmi2usb.hex
-	firmware/fx2/download.sh firmware/fx2/hdmi2usb.hex
+	$(MODESWITCH_CMD) --load-fx2-firmware firmware/fx2/hdmi2usb.hex
 
 flash-fx2:
 	@true

Makefile.lm32

@@ -16,19 +16,15 @@ TARGETS += lm32
 
 RAM_ADDR ?= 0x20000000
 
-ifeq ($(BOARD),atlys)
-SERIAL ?= /dev/ttyVIZ0
-else
 ifeq ($(BOARD),minispartan6)
 SERIAL ?= /dev/ttyUSB1
 RAM_ADDR = 0x40000000
 else
 ifeq ($(BOARD),pipistrello)
 SERIAL ?= /dev/ttyUSB1
 else
-# Opsis fall through
-SERIAL ?= /dev/ttyACM0
-endif
+# Atlys/Opsis use modeswitch to find the serial port
+SERIAL ?= $$($(MODEINFO_CMD) --get-serial)
 endif
 endif
 
@@ -70,11 +66,13 @@ flash-lm32: image-lm32
 	@echo " see https://github.com/timvideos/HDMI2USB-misoc-firmware/issues/274)"
 	@echo "Booting will use lm32 firmware embedded in the gateware."
 	@echo
+#	$(MODESWITCH_CMD) --mode=jtag
 #	export FIRMWARE_ADDRESS=$$($(PYTHON) -c "import platforms.$(BOARD) as b; print(b.Platform.gateware_size)"); \
 #	echo "Flashing to $$($(PYTHON) -c "print(hex($$FIRMWARE_ADDRESS))") ($$FIRMWARE_ADDRESS)"; \
 #	$(FLASHEXTRA_CMD) $(HDMI2USBDIR)/firmware/lm32/firmware.fbi $$FIRMWARE_ADDRESS
 
 clear-flash-lm32:
+	$(MODESWITCH_CMD) --mode=jtag
 	export FIRMWARE_ADDRESS=$$($(PYTHON) -c "import platforms.$(BOARD) as b; print(b.Platform.gateware_size)"); \
 	echo "Zeroing $$($(PYTHON) -c "print(hex($$FIRMWARE_ADDRESS))") ($$FIRMWARE_ADDRESS)"; \
 	$(FLASHEXTRA_CMD) $(HDMI2USBDIR)/firmware/zero.bin $$FIRMWARE_ADDRESS