setenv load_addr "0x9000000"
setenv overlay_error "false"
# default values
setenvrootdev
setenvunamer
setenv envfile "${prefix}uEnv.txt-${unamer}"
setenv dtbdir "${prefix}dtb-${unamer}"

echo "Boot script loaded from ${devtype} ${devnum}"

echo "Testing for existence ${devtype} ${devnum} ${envfile}"
if test -e ${devtype} ${devnum} ${envfile}; then
    echo "Loading ${devtype} ${devnum} ${load_addr} ${envfile}"
    load ${devtype} ${devnum} ${load_addr} ${envfile}
    echo "Loaded ${devtype} ${devnum} ${envfile} into ${load_addr} filesize ${filesize}"
    echo "Importing into environment"
    env import -t ${load_addr} ${filesize}
    echo "${envfile} imported into environment"
fi

# get PARTUUID of first partition on SD/eMMC the boot script was loaded from
if test "${devtype}" = "mmc"; then part uuid mmc ${devnum}:1 partuuid; fi

load ${devtype} ${devnum} ${ramdisk_addr_r} ${prefix}uInitrd-${unamer}
load ${devtype} ${devnum} ${kernel_addr_r} ${prefix}vmlinuz-${unamer}

load ${devtype} ${devnum} ${fdt_addr_r} ${dtbdir}/${fdtfile}
fdt addr ${fdt_addr_r}
fdt resize 65536
for overlay_file in ${overlays}; do
    if load ${devtype} ${devnum} ${load_addr} ${dtbdir}/rockchip/overlay/${overlay_prefix}-${overlay_file}.dtbo; then
        echo "Applying kernel provided DT overlay ${overlay_prefix}-${overlay_file}.dtbo"
        fdt apply ${load_addr} || setenv overlay_error "true"
    elif load ${devtype} ${devnum} ${load_addr} ${dtbdir}/rockchip/overlay/${overlay_file}.dtbo; then
        echo "Applying kernel provided DT overlay ${overlay_file}.dtbo"
        fdt apply ${load_addr} || setenv overlay_error "true"
    fi
done
for overlay_file in ${user_overlays}; do
    if load ${devtype} ${devnum} ${load_addr} ${prefix}overlay-user/${overlay_file}.dtbo; then
        echo "Applying user provided DT overlay ${overlay_file}.dtbo"
        fdt apply ${load_addr} || setenv overlay_error "true"
    fi
done
if test "${overlay_error}" = "true"; then
    echo "Error applying DT overlays, restoring original DT"
    load ${devtype} ${devnum} ${fdt_addr_r} ${dtbdir}/${fdtfile}
else
    if load ${devtype} ${devnum} ${load_addr} ${dtbdir}/rockchip/overlay/${overlay_prefix}-fixup.scr; then
        echo "Applying kernel provided DT fixup script (${overlay_prefix}-fixup.scr)"
        source ${load_addr}
    fi
    if test -e ${devtype} ${devnum} ${prefix}fixup.scr; then
        load ${devtype} ${devnum} ${load_addr} ${prefix}fixup.scr
        echo "Applying user provided fixup script (fixup.scr)"
        source ${load_addr}
    fi
fi
kaslrseed
booti ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}