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#!/bin/bash
#############
# Functions #
#############
function getconf {
conf=$(cat /boot/bootcfg/${1} 2>/dev/null)
if [ -z "$conf" ]; then
conf="${2}"
echo -n "${conf}" >"/boot/bootcfg/${1}"
fi
echo "${conf}"
}
#################
# Set variables #
#################
rootdev=$(lsblk -pilno pkname,type,mountpoint | grep -G 'part /$' | head -n1 | cut -d " " -f1)
partlabelroot=$(lsblk -plno partlabel $rootdev | grep -G '\-root$' )
[ -z "$partlabelroot" ] && exit
target=$(echo $partlabelroot | cut -d'-' -f1)
default_dtb="${target/m/-mini}"
default_dtb="${default_dtb/bpir/-bananapi-bpi-r}"
default_dtb=$(shopt -s nullglob; cd /boot/dtbs; echo "mt"*"${default_dtb}.dtb" | head -n 1)
default_dtb="${default_dtb/.dtb/}"
tmp="/tmp/bpir64-atf-git"
mkdir -p $tmp
mkdir -p /boot/dtbos
mkdir -p /boot/bootcfg
dtb=$( getconf dtb "$default_dtb")
atfdevice=$( getconf device "$(echo $partlabelroot | cut -d'-' -f2)")
linux=$( getconf linux "/boot/Image")
cmdline=$( getconf cmdline "console=ttyS0,115200 debug=7 rw rootwait audit=0")
initrd=$( getconf initrd "/boot/initramfs-linux-bpir64-git.img")
atfdtb=$( getconf atfdtb "/boot/dtbs/${dtb}-atf.dtb")
########## cleanup *-atf.dtb
fipdevicel="/dev/disk/by-partlabel/${target}-${atfdevice}-fip"
bootdevicel="/dev/disk/by-partlabel/${target}-${atfdevice}-boot"
atfdevicel="/dev/disk/by-partlabel/${target}-${atfdevice}-atf"
fstabstr="PARTLABEL=${target}-${atfdevice}-boot"
#######################
# Convert FIP to BOOT #
#######################
if [[ $@ =~ "--fip2boot" ]] && [ -L ${fipdevicel} ]; then
set -e
pkfip=$(lsblk -rno pkname ${fipdevicel})
nrfip=$(cat "/sys/block/${pkfip}/$(basename $(realpath ${fipdevicel}))/partition")
if [ -z "$pkfip" ] || [ -z "$nrfip" ]; then exit; fi
[ -e $tmp/boot ] && rm -rf $tmp/boot
echo "Moving files from /boot to $tmp/boot"
mv -fT /boot $tmp/boot
parted -s -- "/dev/$pkfip" name $nrfip ${target}-${atfdevice}-boot \
set $nrfip boot on
mkfs.vfat -v -F 32 -S 512 -s 16 -n "${target^^}-BOOT" ${bootdevicel}
mkdir /boot
mount -t vfat ${bootdevicel} /boot
echo "Copying files from $tmp/boot to /boot"
cp -rfT $tmp/boot /boot
if [ -z "$(cat /etc/fstab | grep ${fstabstr})" ]; then
sed -i -e '$a\' /etc/fstab # add newline
echo "${fstabstr} /boot vfat defaults 0 2" >>/etc/fstab
fi
set +e
fi
#######################
# Convert BOOT to FIP #
#######################
if [[ $@ =~ "--boot2fip" ]] && [ -L ${bootdevicel} ]; then
set -e
pkfip=$(lsblk -rno pkname ${bootdevicel})
nrfip=$(cat "/sys/block/${pkfip}/$(basename $(realpath ${bootdevicel}))/partition")
if [ -z "$pkfip" ] || [ -z "$nrfip" ]; then exit; fi
[ -e $tmp/boot ] && rm -rf $tmp/boot
mkdir $tmp/boot
echo "Copying files from /boot to $tmp/boot"
cp -rfT /boot/ $tmp/boot
umount /boot
parted -s -- "/dev/$pkfip" name $nrfip ${target}-${atfdevice}-fip
rm -rf /boot
echo "Moving files from $tmp/boot to /boot"
mv -fT $tmp/boot /boot
sed -i '/\b'"${fstabstr}"'\b/d' /etc/fstab
set +e
fi
########################
# Write ATF bootloader #
########################
if [[ $@ =~ "--atf" ]]; then
if [ -L ${atfdevicel} ]; then
if [ -f "/boot/${target}-atf-${atfdevice}-header.bin" ]; then
headerdev="/dev/"$(lsblk -no pkname ${atfdevicel})
echo Writing ${target}-atf-${atfdevice}-header.bin to ${headerdev}
dd if=/boot/${target}-atf-${atfdevice}-header.bin of="${headerdev}"
fi
echo -e "Target = ${target}, ATF device = ${atfdevice}\nZeroing: ${atfdevicel}"
dd bs=64k if=/dev/zero of="${atfdevicel}" 2>/dev/null
echo "Writing ${target}-atf-${atfdevice}-atf.bin to ${atfdevicel}"
dd bs=64k if=/boot/${target}-atf-${atfdevice}-atf.bin of="${atfdevicel}"
fi
fi
#################
# Create DTBO's #
#################
cp -vf "/boot/dtbs/${dtb}.dtb" "/boot/dtbs/${dtb}-fixed.dtb"
rm -rf /boot/dtbos/*.dtbo
for bp in /boot/dtbos/*.dts; do
echo "Creating .dtbo from $(basename $bp)"
dtc -@ -q -I dts -O dtb -o ${bp/".dts"/".dtbo"} $bp
cat $bp | grep "//fdtput" | while read -r line ; do
echo fdtput "/boot/dtbs/${dtb}-fixed.dtb" ${line/"//fdtput"/""}
fdtput "/boot/dtbs/${dtb}-fixed.dtb" ${line/"//fdtput"/""}
done
done
########################
# Create a single .dtb #
########################
fdtoverlay -vi "/boot/dtbs/${dtb}-fixed.dtb" -o "$atfdtb" \
/boot/dtbos/*.dtbo
origargs=$(fdtget -ts "$atfdtb" "/chosen" "bootargs")
bootargs="root=PARTLABEL=${target}-${atfdevice}-root $origargs $cmdline"
echo BOOTARGS = "$bootargs"
fdtput -ts "$atfdtb" "/chosen" "bootargs" "$bootargs"
fdtput -ts "$atfdtb" "/memory" "device_type" "memory"
if [ -f "$initrd" ];then
ins="0x48000000"
ine="0x$(printf '%x\n' $(( $ins + $(du -b $initrd | cut -f1) )))"
fdtput -tx "$atfdtb" "/chosen" "linux,initrd-end" "$ine"
fdtput -tx "$atfdtb" "/chosen" "linux,initrd-start" "$ins"
else
echo -n "EMPTYBYT" > "$tmp/initrd"
initrd="$tmp/initrd"
fi
if [ ! -f "$atfdtb" ];then
echo -n "EMPTYBYT" > "$tmp/atfdtb"
atfdtb="$tmp/atfdtb"
fi
##############################
# Create and write fip image #
##############################
if [ -L ${fipdevicel} ]; then
bl31="/boot/${target}-atf-${atfdevice}-bl31.bin"
imageid=$(od --skip-bytes=$((4*14)) --read-bytes=4 --address-radix=n -x \
$linux | sed 's/ //g')
fipfiles=""
[ -f "$bl31" ] && fipfiles+=" --soc-fw $bl31"
[ -f "$linux" ] && fipfiles+=" --nt-fw $linux"
if [[ "$imageid" == "5241644d" ]]; then # We have a linux kernel image
[ -f "$atfdtb" ] && fipfiles+=" --nt-fw-config $atfdtb"
[ -f "$initrd" ] && fipfiles+=" --tos-fw-extra2 $initrd"
fi
fiptool --verbose create $tmp/fip.bin $fipfiles
fiptool info $tmp/fip.bin
echo Writing FIP to: ${fipdevicel}
dd bs=1M of=${fipdevicel} if=/dev/zero 2>/dev/null
dd bs=1M of=${fipdevicel} if=$tmp/fip.bin
sync
fi
exit 0
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