nixos-riscv/fpga/run-node.sh

#!/usr/bin/bash

#set -x
set -e

echo "Hello from $(hostname)"

path="$1"

cd "$path"

# First kill any picocom instance
killall picocom || true

# Setup the environment
. env.sh

set -x

# Then perform the boot
./fpgactl -w bitstream.bit -b opensbi.bin -k kernel.bin -i initrd.bin -r rootfs.img
#./fpgactl -w bitstream.bit -b opensbi.bin -k kernel.bin -i initrd.bin

# Restart it again only loading the bootrom and OpenSBI (notice OpenSBI
# relocates itself so it will likely be gone by now)
sleep 1 && ./fpgactl -b opensbi.bin &

timeout=$((30 * 60)) # Always stop after 30 min
timeout_silent=$((10 * 60)) # Stop if 10 min without output

# Set dead switch
sleep $timeout && killall picocom &

# Note: --imap igncr is broken so we replace it with LF.
# See https://github.com/npat-efault/picocom/pull/114
# It looks like picocom is abandoned, we may want to switch to minicom or
# stty+cat
picocom --imap crlf -q -x $(($timeout_silent*1000)) -b 115200 $FPGACTL_UART