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#!/usr/bin/ash
# Tool for %PKGBASE% package, needs to run from initrd!
# Connect UART and when kernel starts, keep 'x' key pressed.
mkdir -p /tmp/mnt
mount --source /dev/disk/by-partlabel/*-sdmmc-root --target /tmp/mnt
[ $? -ne 0 ] && exit
[ ! -e "/tmp/mnt$1" ] && exit
echo "Reading file $1 now..."
cp -f "/tmp/mnt$1" "/tmp/tempfile"
umount /tmp/mnt
[ $? -ne 0 ] && exit
while [ ! -e /sys/block/mmcblk0boot0 ]; do
echo 11230000.mmc >/sys/bus/platform/drivers/mtk-msdc/unbind
sleep 0.1
echo 11230000.mmc >/sys/bus/platform/drivers/mtk-msdc/bind
echo "Flip SD/EMMC switch now (most near to power plug)!"
sleep 1.9
done
echo "Setting up EMMC so that mmcblk0boot0 is the bootdevice."
mmc bootpart enable 1 1 /dev/mmcblk0
echo "Writing $1 to EMMC now..."
xz -dcv "/tmp/tempfile" | dd of=/dev/mmcblk0 conv=fsync,notrunc
echo "Copying atf partition to mmcblk0boot0"
echo 0 >/sys/block/mmcblk0boot0/force_ro
dd if=/dev/mmcblk0 of=/dev/mmcblk0boot0 bs=512 skip=34 count=1024 conv=fsync,notrunc
echo 1 >/sys/block/mmcblk0boot0/force_ro
echo "Flip other switch now (most far away from power plug)!"
echo "Reboot and enjoy booting from EMMC."
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