Random collection of fixes.

Makefile

@@ -208,13 +208,13 @@ image-flash-py: image
 .PHONY: image image-load image-flash image-flash-py image-flash-$(PLATFORM) image-load-$(PLATFORM)
 .NOTPARALLEL: image-load image-flash image-flash-py image-flash-$(PLATFORM) image-load-$(PLATFORM)
 
-# Gateware - the stuff which configures the FPGA.
-# --------------------------------------
-GATEWARE_MODULES=litex litedram liteeth litepcie litesata litescope liteusb litevideo litex
-gateware-submodules: $(addsuffix /.git,$(addprefix third_party/,$(GATEWARE_MODULES)))
+LITEX_SUBMODULES=litex litedram liteeth litepcie litesata litescope liteusb litevideo
+litex-submodules: $(addsuffix /.git,$(addprefix third_party/,$(LITEX_SUBMODULES)))
 	@true
 
-gateware: gateware-submodules
+# Gateware - the stuff which configures the FPGA.
+# --------------------------------------
+gateware: litex-submodules
 	mkdir -p $(TARGET_BUILD_DIR)
 ifneq ($(OS),Windows_NT)
 	$(MAKE_CMD) \
@@ -250,7 +250,7 @@ gateware-clean:
 
 # Firmware - the stuff which runs in the soft CPU inside the FPGA.
 # --------------------------------------
-firmware-cmd:
+firmware-cmd: litex-submodules
 	mkdir -p $(TARGET_BUILD_DIR)
 ifneq ($(OS),Windows_NT)
 	$(MAKE_CMD) --no-compile-gateware \
@@ -325,8 +325,13 @@ tftp: $(FIRMWARE_FILEBASE).bin
 	cp $(FIRMWARE_FILEBASE).bin $(TFTPD_DIR)/boot.bin
 
 tftpd_stop:
-	sudo true
-	sudo killall atftpd || sudo killall in.tftpd || true # FIXME: This is dangerous...
+	# FIXME: This is dangerous...
+	@if [ $(TFTP_SERVER_PORT) -lt 1024 ]; then \
+		sudo true; \
+		sudo killall atftpd || sudo killall in.tftpd || true; \
+	else \
+		killall atftpd || killall in.tftpd || true; \
+	fi
 
 tftpd_start:
 	mkdir -p $(TFTPD_DIR)
@@ -481,7 +486,7 @@ reset: reset-$(PLATFORM)
 clean:
 	rm -f build/cache.mk
 	rm -rf $(TARGET_BUILD_DIR)
-	py3clean . || rm -rf $$(find -name __pycache__)
+	py3clean . 2>/dev/null || rm -rf $$(find -name __pycache__)
 
 dist-clean:
 	rm -rf build

firmware/hdmi_in.sh

@@ -25,8 +25,8 @@ X=$1
 set -e
 
 # These must be outside the heredoc below otherwise the script won't error.
-TMPFILE_H=$(tempfile -s .h | mktemp --suffix=.h)
-TMPFILE_C=$(tempfile -s .c | mktemp --suffix=.c)
+TMPFILE_H=$(tempfile -s .h 2>/dev/null || mktemp --suffix=.h)
+TMPFILE_C=$(tempfile -s .c 2>/dev/null || mktemp --suffix=.c)
 
 cat $FIRMWARE_DIR/hdmi_in0.h | sed \
 	-e"s/IN0_INDEX\([^0-9]\+\)0/IN${X}_INDEX\1$X/g" \

firmware/version_data.sh

@@ -7,8 +7,8 @@ COMMIT="$(git log --format="%H" -n 1)"
 BRANCH="$(git symbolic-ref --short HEAD)"
 DESCRIBE="$(git describe --dirty)"
 
-TMPFILE_H=$(tempfile -s .h || mktemp --suffix=.h)
-TMPFILE_C=$(tempfile -s .c || mktemp --suffix=.c)
+TMPFILE_H=$(tempfile -s .h 2>/dev/null || mktemp --suffix=.h)
+TMPFILE_C=$(tempfile -s .c 2>/dev/null || mktemp --suffix=.c)
 
 UPLATFORM="$(echo $PLATFORM | tr '[:lower:]' '[:upper:]')"
 UTARGET="$(echo $TARGET | tr '[:lower:]' '[:upper:]')"

scripts/build-linux.sh

@@ -78,7 +78,7 @@ LINUX_BRANCH=${LINUX_BRANCH:-litex-minimal}
 	CURRENT_LINUX_REMOTE_NAME=$(git remote -v | grep fetch | grep "$LINUX_REMOTE_BIT" | sed -e's/\t.*$//')
 	if [ x"$CURRENT_LINUX_REMOTE_NAME" = x ]; then
 		git remote add $LINUX_REMOTE_NAME $LINUX_REMOTE
-		CURRENT_LINUX_REMOTE_NAME=$CURRENT_LINUX_REMOTE_NAME
+		CURRENT_LINUX_REMOTE_NAME=$LINUX_REMOTE_NAME
 	fi
 
 	# Get any new data
@@ -142,9 +142,6 @@ TARGET_LINUX_BUILD_DIR=$(dirname $TOP_DIR/$FIRMWARE_FILEBASE)
 		if [ ! -e $ROOTFS ]; then
 			wget "https://ozlabs.org/~joel/openrisc-rootfs.cpio.gz" -O $ROOTFS
 		fi
-		if [ ! -e $ROOTFS.gz ]; then
-			gzip -k $ROOTFS
-		fi
 	)
 	make O="$TARGET_LINUX_BUILD_DIR" litex_defconfig
 	time make O="$TARGET_LINUX_BUILD_DIR" -j$JOBS

scripts/build-qemu.sh

@@ -33,6 +33,10 @@ make info
 set -x
 set -e
 
+QEMU_REMOTE="${QEMU_REMOTE:-https://github.com/timvideos/qemu-litex.git}"
+QEMU_REMOTE_NAME=timvideos-qemu-litex
+QEMU_REMOTE_BIT=$(echo $QEMU_REMOTE | sed -e's-^.*://--' -e's/.git$//')
+QEMU_BRANCH=${QEMU_BRANCH:-master}
 QEMU_SRC_DIR=$TOP_DIR/third_party/qemu-litex
 if [ ! -d "$QEMU_SRC_DIR" ]; then
 	(
@@ -41,6 +45,26 @@ if [ ! -d "$QEMU_SRC_DIR" ]; then
 		cd $QEMU_SRC_DIR
 		git submodule update --init dtc
 	)
+else
+	(
+		cd $QEMU_SRC_DIR
+
+		# Add the remote if it doesn't exist
+		CURRENT_QEMU_REMOTE_NAME=$(git remote -v | grep fetch | grep "$QEMU_REMOTE_BIT" | sed -e's/\t.*$//')
+		if [ x"$CURRENT_QEMU_REMOTE_NAME" = x ]; then
+			git remote add $QEMU_REMOTE_NAME $QEMU_REMOTE
+			CURRENT_QEMU_REMOTE_NAME=$QEMU_REMOTE_NAME
+		fi
+
+		# Get any new data
+		git fetch $CURRENT_QEMU_REMOTE_NAME
+
+		# Checkout master branch it not already on it
+		if [ "$(git rev-parse --abbrev-ref HEAD)" != "$QEMU_BRANCH" ]; then
+			git checkout $QEMU_BRANCH || \
+				git checkout "$CURRENT_QEMU_REMOTE_NAME/$QEMU_BRANCH" -b $QEMU_BRANCH
+		fi
+	)
 fi
 
 TARGET_QEMU_BUILD_DIR=$TARGET_BUILD_DIR/qemu
@@ -116,30 +140,48 @@ if grep -q ETHMAC_BASE $TARGET_BUILD_DIR/software/include/generated/csr.h; then
 	QEMU_NETWORK=${QEMU_NETWORK:-tap}
 	case $QEMU_NETWORK in
 	tap)
+		echo "Using tun device for QEmu networking, (may need sudo)..."
+		# Make the tap0 dev node exists
 		if [ ! -e /dev/net/tap0 ]; then
-			echo "Need to create and bring up a tun device, needing sudo..."
 			sudo true
 			sudo mknod /dev/net/tap0 c 10 200
+			sudo chown $(whoami) /dev/net/tap0
+		fi
+
+		# Check that the tap0 network interface exists
+		if [ ! -e /sys/class/net/tap0 ]; then
+			sudo true
 			if sudo which openvpn > /dev/null; then
-				sudo openvpn --mktun --dev tap0
+				sudo openvpn --mktun --dev tap0 --user $(whoami)
 			elif sudo which tunctl > /dev/null; then
 				sudo tunctl -t tap0 -u $(whoami)
 			else
 				echo "Unable to find tool to create tap0 device!"
 				exit 1
 			fi
-			sudo chown $(whoami) /dev/net/tap0
-			if sudo which ifconifg > /dev/null; then
-				sudo ifconfig tap0 $TFTP_IPRANGE.100 up
-			elif sudo which ip > /dev/null; then
+		fi
+
+		# Check the tap0 device if configure and up
+		if sudo which ifconfig > /dev/null; then
+			if ! ifconfig tap0 | grep -q "UP" || ! ifconfig tap0 | grep -q "$TFTP_IPRANGE.100"; then
+				sudo true
+				sudo ifconfig tap0 $TFTP_IPRANGE.100 netmask 255.255.255.0 up
+			fi
+		elif sudo which ip > /dev/null; then
+			if ! ip addr show tap0 | grep -q "UP" || ! ip addr show tap0 | grep -q "$TFTP_IPRANGE.100"; then
+				sudo true
 				sudo ip addr add $TFTP_IPRANGE.100/24 dev tap0
 				sudo ip link set dev tap0 up
-			else
-				echo "Unable to find tool to configure tap0 address"
-				exit 1
 			fi
-			make tftpd_start
+		else
+			echo "Unable to find tool to configure tap0 address"
+			exit 1
 		fi
+
+		# Restart tftpd
+		make tftpd_stop
+		make tftpd_start
+
 		EXTRA_ARGS+=("-net nic -net tap,ifname=tap0,script=no,downscript=no")
 		;;
 
@@ -160,6 +202,9 @@ if grep -q ETHMAC_BASE $TARGET_BUILD_DIR/software/include/generated/csr.h; then
 		# FIXME: Make this optional.
 		EXTRA_ARGS+=("-net dump,file=/tmp/data.pcap")
 		;;
+	none)
+		echo "QEmu networking disabled..."
+		;;
 	*)
 		echo "Unknown QEMU_NETWORK mode '$QEMU_NETWORK'"
 		;;