update for open source

scripts/flash-pru.sh

@@ -0,0 +1,20 @@
+#!/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
+
+# Restart (if system install script present)
+if [ -f /etc/init.d/klipper_pru ]; then
+    echo "Attempting PRU restart..."
+    service klipper_pru restart
+fi