#! /bin/bash

PATH=$PATH:/usr/local/bin

if [ $(id -u) != "0" ]; then
    sudo "$0" "$@"
    exit $?
fi

device=`lspci -vv | grep -m 1 Xilinx | awk '{print $1}'`
if [ -z "$device" ]; then
    echo "Xilinx device doesn't exist, rescanning..."
    echo 1 > /sys/bus/pci/rescan
    exit
else
    echo "Xilinx is located at: " $device
fi
echo "remove devices"
echo  1 > /sys/bus/pci/devices/0000\:${device:0:2}\:${device:3:4}/remove
sleep 1
echo "rescan"
echo 1 > /sys/bus/pci/rescan
sleep 1
echo "remove driver"
rmmod pciDriver 
sleep 1
echo "instantiate driver"
modprobe pciDriver
sleep 1
pci -i
sleep .1
echo "Firmware:"
pci -r 9020
echo "set bus master dma"
dev=$device  
echo Enabling bus mastering on device $dev
setpci -s $dev 4.w=0x07