sunxi-linux fel script

#!/bin/bash
#
# This scripts boots the sunxi kernel over fel
#
# Make sure only root can run our script
if [[ $EUID -ne 0 ]]; then
	echo "This script must be run as root" 1>&2
	exit 1
fi
if [ ! -d /tmp/Hacking ]; then
	echo "Hacking Directory not found!"
	mkdir /tmp/Hacking
fi
# need to mount the build computer
if grep -qs '/tmp/Hacking' /proc/mounts; then
	echo "Hacking Directory is mounted."
else
	echo "Hacking Directory is not mounted. Attach to build computer"
	mount -t nfs BLAH/Hacking /tmp/Hacking
fi
#is any device in fel mode
if [ "`./fel 2>&1 >/dev/null | grep ERROR`" ] ; then
	echo "Device in fel mode not detected."
	exit 1
else
	echo "Device in fel mode."
fi
echo "Checking correct kernel is available"
if [ "`./fel ver | grep A20`" ] ; then
	if grep -ciqm1 CONFIG_ARCH_SUN7I=y /tmp/Hacking/sunxi/linux-sunxi/.config; then
		echo "A20 device located and SUN7I build found."
	else
		echo "A20 device located but SUN7I build not found."
		exit
	fi
fi
if [ "`./fel ver | grep A31`" ] ; then
	if grep -ciqm1 CONFIG_ARCH_SUN6I=y /tmp/Hacking/sunxi/linux-sunxi/.config; then
		echo "A31 device located and SUN6I build found."
	else
		echo "A31 device located but SUN6I build not found."
		exit
	fi
fi
echo "Uploading u-boot"
if [ "`./fel ver | grep A20`" ] ; then
	echo "to the mk808c"
	./fel write 0x2000 /tmp/Hacking/dumping_ground/mk808c-u-boot-spl-old.bin
	./fel exe 0x2000
	sleep 2
	./fel write 0x4a000000 /tmp/Hacking/dumping_ground/mk808c-u-boot-old.bin
fi
if [ "`./fel ver | grep A31`" ] ; then
	echo "to the mele i7"
	./fel write 0x2000 /tmp/Hacking/dumping_ground/mele-i7-u-boot-spl-old.bin
	./fel exe 0x2000
	sleep 2
	./fel write 0x4a000000 /tmp/Hacking/dumping_ground/mele-i7-u-boot-old.bin
fi
echo "Uploading kernel"
./fel -v write 0x44000000 /tmp/Hacking/sunxi/linux-sunxi/arch/arm/boot/uImage

echo "Uploading initramfs - modify if any modules are required"
if grep -ciqm1 CONFIG_MODULES=y /tmp/Hacking/sunxi/linux-sunxi/.config; then
	echo "Modules are used in this build"
	cp /tmp/Hacking/openwrt/bin/sunxi/openwrt-sunxi-rootfs.cpio.gz /tmp/rootfs.cpio.gz
	rm -rf /tmp/rootfs
	gzip -df /tmp/rootfs.cpio.gz
	mkdir /tmp/rootfs
	cd /tmp/rootfs
	cpio -idm < /tmp/rootfs.cpio
	VERSION=(`strings /tmp/Hacking/sunxi/linux-sunxi/vmlinux | grep "Linux version" | awk '{ print $3 }'`)
	cp -rp /tmp/Hacking/sunxi/linux-sunxi/output/lib/modules/$VERSION /tmp/rootfs/lib/modules/.
	find ./ | cpio -H newc -o > /tmp/rootfs.cpio
	gzip /tmp/rootfs.cpio
	cd -
else
	echo "Modules are not used in this build"
	cp /tmp/Hacking/openwrt/bin/sunxi/openwrt-sunxi-rootfs.cpio.gz /tmp/rootfs.cpio.gz
fi

mkimage -A arm -T ramdisk -C none -n uInitrd -d /tmp/rootfs.cpio.gz /tmp/coops.uboot
./fel -v write 0x4c000000 /tmp/coops.uboot

if [ "`./fel ver | grep A20`" ] ; then
	echo "Uploading mk808c script.bin"
	./fex2bin /tmp/Hacking/sunxi/sunxi-boards/sys_config/a20/mk808c.fex > /tmp/script.bin
	./fel write 0x43000000 /tmp/script.bin
fi

if [ "`./fel ver | grep A31`" ] ; then
	echo "Uploading mele i7 script.bin"
	./fex2bin /tmp/Hacking/sunxi/sunxi-boards/sys_config/a31/mele_i7.fex > /tmp/script.bin
	./fel write 0x43000000 /tmp/script.bin
fi
mkimage -C none -A arm -T script -d linux-sunxi.cmd /tmp/boot.scr
./fel write 0x43100000 /tmp/boot.scr

./fel exe 0x4a000000