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#!/bin/bash
#
# Copyright (c) 2015 Igor Pecovnik, igor.pecovnik@gma**.com
#
# This file is licensed under the terms of the GNU General Public
# License version 2. This program is licensed "as is" without any
# warranty of any kind, whether express or implied.
#
# This file is a part of tool chain https://github.com/igorpecovnik/lib
#
# FEL_ROOTFS should be set to path to debootstrapped root filesystem
# unless you want to kill your /etc/fstab and share your rootfs on NFS
# without any access control
fel_prepare_host()
{
# remove and re-add NFS share
rm -f /etc/exports.d/armbian.exports
mkdir -p /etc/exports.d
echo "$FEL_ROOTFS *(rw,async,no_subtree_check,no_root_squash,fsid=root)" > /etc/exports.d/armbian.exports
exportfs -ra
}
fel_prepare_target()
{
if [[ -f $SRC/userpatches/fel-boot.cmd ]]; then
display_alert "Using custom boot script" "userpatches/fel-boot.cmd" "info"
cp $SRC/userpatches/fel-boot.cmd $FEL_ROOTFS/boot/boot.cmd
else
cp $SRC/lib/scripts/fel-boot.cmd.template $FEL_ROOTFS/boot/boot.cmd
fi
if [[ -z $FEL_LOCAL_IP ]]; then
FEL_LOCAL_IP=$(ifconfig $FEL_NET_IFNAME | sed -En 's/127.0.0.1//;s/.*inet (addr:)?(([0-9]*\.){3}[0-9]*).*/\2/p')
fi
sed -i "s#BRANCH#$BRANCH#" $FEL_ROOTFS/boot/boot.cmd
sed -i "s#FEL_LOCAL_IP#$FEL_LOCAL_IP#" $FEL_ROOTFS/boot/boot.cmd
sed -i "s#FEL_ROOTFS#$FEL_ROOTFS#" $FEL_ROOTFS/boot/boot.cmd
mkimage -C none -A arm -T script -d $FEL_ROOTFS/boot/boot.cmd $FEL_ROOTFS/boot/boot.scr > /dev/null
# kill /etc/fstab on target
echo > $FEL_ROOTFS/etc/fstab
echo "/dev/nfs / nfs defaults 0 0" >> $FEL_ROOTFS/etc/fstab
echo "tmpfs /tmp tmpfs defaults,nosuid 0 0" >> $FEL_ROOTFS/etc/fstab
}
fel_load()
{
# update each time in case boot/script.bin link was changed in multi-board images
if [[ -n $FEL_DTB_FILE ]]; then
local dtb_file=$FEL_DTB_FILE
else
if [[ $BRANCH == default ]]; then
# script.bin is either regular file or absolute symlink
if [[ -L $FEL_ROOTFS/boot/script.bin ]]; then
local dtb_file=boot/bin/$(basename $(readlink $FEL_ROOTFS/boot/script.bin))
else
local dtb_file=boot/script.bin
fi
else
local dtb_file=boot/dtb/$(grep CONFIG_DEFAULT_DEVICE_TREE $FEL_ROOTFS/usr/lib/u-boot/$BOOTCONFIG | cut -d '"' -f2).dtb
fi
fi
[[ $(type -t fel_pre_load) == function ]] && fel_pre_load
display_alert "Loading files via" "FEL USB" "info"
sunxi-fel $FEL_EXTRA_ARGS -p uboot $FEL_ROOTFS/usr/lib/${CHOSEN_UBOOT}_${REVISION}_armhf/u-boot-sunxi-with-spl.bin \
write 0x42000000 $FEL_ROOTFS/boot/zImage \
write 0x43000000 $FEL_ROOTFS/$dtb_file \
write 0x43300000 $FEL_ROOTFS/boot/uInitrd \
write 0x43100000 $FEL_ROOTFS/boot/boot.scr
}
if [[ -f $SRC/userpatches/fel-hooks.sh ]]; then
display_alert "Using additional FEL hooks in" "userpatches/fel-hooks.sh" "info"
source $SRC/userpatches/fel-hooks.sh
fi
# basic sanity check
if [[ -n $FEL_ROOTFS ]]; then
fel_prepare_host
fel_prepare_target
[[ $(type -t fel_post_prepare) == function ]] && fel_post_prepare
RES=b
while [[ $RES != q ]]; do
if [[ $FEL_AUTO != yes ]]; then
display_alert "Connect device in FEL mode and press" "<Enter>" "info"
read
fi
fel_load
display_alert "Press any key to boot again, <q> to finish" "FEL" "info"
read -n 1 RES
echo
done
service nfs-kernel-server restart
fi