Development setup for daily driver phone

This allows using daily driver phone for development. Can be done using u-boot with a script

echo "##############################################"
echo "searching for images..."

ramdisk_addr=0xa2000000
image_addresses_start=0x80000000
image_addresses=$image_addresses_start
image_number=0
md $ramdisk_addr 4

doodfeed=0xedfe0dd0
if itest $ramdisk_addr <= 0xa6001000; then
    echo "true"
fi

if itest $ramdisk_addr >= 0xa0001000; then
    echo "false"
fi

while itest $ramdisk_addr <= 0xa6001000; do
    if itest *$ramdisk_addr == $doodfeed; then
        echo "address at $ramdisk_addr matches"
        if itest $image_number != 0; then
            echo "######## image $image_number found at $ramdisk_addr ########"
            iminfo $ramdisk_addr
            mw $image_addresses $ramdisk_addr 1
            setexpr image_addresses $image_addresses + 4
        fi
        setexpr image_number $image_number + 1
    fi
    setexpr ramdisk_addr $ramdisk_addr + 0x1000
done

echo "searching finished"
md $image_addresses_start 2
if itest $image_number <= 1; then
    echo "No images found!"
fi

if itest "${key_vol_down}" -eq "1"; then
    echo "key down pressed, booting 2nd image"
    setexpr image_address $image_addresses_start + 4
    setexpr image_address *$image_address
    echo "image_address: $image_address"
    source $image_address:bootscript
else
    echo "key down NOT pressed, booting 1st image"
    setexpr image_address $image_addresses_start
    setexpr image_address *$image_address
    echo "image_address: $image_address"
    source $image_address:bootscript
fi

This searches for loaded FIT images, allowing to have more than one FIT image in ABL ramdisk file. An image may be reflashed without touching other image, if you know offsets.