pru: Add support for "make flash" rule

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-07-05 12:26:47 -04:00
parent 5793271308
commit b32ba3727b
2 changed files with 34 additions and 0 deletions

30
scripts/flash-pru.sh Executable file
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@ -0,0 +1,30 @@
#!/bin/bash
# This script installs the PRU firmware on a beaglebone machine.
if [ "$EUID" -ne 0 ]; then
echo "This script must be run as root"
exit -1
fi
set -e
# Install new firmware
echo "Installing firmware to /lib/firmware/"
cp out/pru0.elf /lib/firmware/am335x-pru0-fw
cp out/pru1.elf /lib/firmware/am335x-pru1-fw
sync
# Shutdown existing Klipper instance (if applicable). The goal is to
# put the GPIO pins in a safe state.
if [ -c /dev/rpmsg_pru30 ]; then
echo "Attempting to shutdown existing firmware..."
( echo "FORCE_SHUTDOWN" > /dev/rpmsg_pru30 ) 2> /dev/null || ( echo "Firmware busy! Please shutdown Klipper and then retry." && exit 1 )
sleep 1
( echo "FORCE_SHUTDOWN" > /dev/rpmsg_pru30 ) 2> /dev/null || ( echo "Firmware busy! Please shutdown Klipper and then retry." && exit 1 )
sleep 1
fi
set +e
# Restart the PRU
echo "Restarting pru_rproc module"
rmmod -f pru_rproc
modprobe pru_rproc

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@ -31,3 +31,7 @@ $(OUT)pru0.elf: $(patsubst %.c, $(OUT)src/%.o,$(pru0-y))
$(OUT)pru1.elf: $(OUT)klipper.elf $(OUT)pru1.elf: $(OUT)klipper.elf
@echo " Linking $@" @echo " Linking $@"
$(Q)$(CC) $(CFLAGS_pru1.elf) $^ -o $@ $(Q)$(CC) $(CFLAGS_pru1.elf) $^ -o $@
flash: $(OUT)pru0.elf $(OUT)pru1.elf
@echo " Flashing"
$(Q)sudo ./scripts/flash-pru.sh