1 | #!/bin/sh
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2 |
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3 | #
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4 | # Copyright (c) 2021 Martin Decky
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5 | # All rights reserved.
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6 | #
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7 | # Redistribution and use in source and binary forms, with or without
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8 | # modification, are permitted provided that the following conditions
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9 | # are met:
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10 | #
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11 | # - Redistributions of source code must retain the above copyright
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12 | # notice, this list of conditions and the following disclaimer.
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13 | # - Redistributions in binary form must reproduce the above copyright
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14 | # notice, this list of conditions and the following disclaimer in the
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15 | # documentation and/or other materials provided with the distribution.
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16 | # - The name of the author may not be used to endorse or promote products
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17 | # derived from this software without specific prior written permission.
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18 | #
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19 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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20 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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21 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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22 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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23 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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24 | # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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25 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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26 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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27 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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28 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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29 | #
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30 |
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31 | # This script allows to deploy HelenOS conveniently to the HiKey 960 board
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32 | # using the fastboot protocol. The fastboot mechanism is provided as a part
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33 | # of the default UEFI firmware on HiKey 960.
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34 | #
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35 | # The implementation of the fastboot mechanism on HiKey 960 has several
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36 | # quirks and this script tries to accommodate for them:
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37 | #
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38 | # * The boot image must be compressed by GZip. Uncompressed boot images are
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39 | # rejected.
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40 | #
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41 | # * The compressed boot image must end with a device tree blob (even if
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42 | # the device tree is not actually processed). A missing device tree blob
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43 | # crashes the fastboot mechanism.
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44 | #
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45 | # * A RAM disk must be included in the final fastboot image. A missing RAM
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46 | # disk crashes the fastboot mechanism. We use a fake blob for that purpose.
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47 |
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48 | check_error() {
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49 | if [ "$1" -ne "0" ] ; then
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50 | echo
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51 | echo "Error: $2"
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52 |
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53 | exit 1
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54 | fi
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55 | }
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56 |
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57 | SCRIPT_DIR="$(readlink -f $(dirname "$0"))"
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58 |
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59 | if [ "$#" -lt "1" ] ; then
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60 | echo "Usage: $0 <image.boot>"
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61 | exit 2
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62 | fi
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63 |
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64 | IMAGE="$1"
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65 | IMAGE_GZ="${IMAGE}.gz"
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66 | IMAGE_GZ_DTB="${IMAGE_GZ}+dtb"
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67 | IMAGE_FASTBOOT="${IMAGE}.fastboot"
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68 |
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69 | if [ ! -f "${IMAGE}" ] ; then
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70 | echo "Error: ${IMAGE} is not a file"
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71 | exit 3
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72 | fi
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73 |
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74 | # Compress the image
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75 | gzip -c "${IMAGE}" > "${IMAGE_GZ}"
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76 | check_error $? "Compressing ${IMAGE}"
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77 |
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78 | # Append the DTB
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79 | cat "${IMAGE_GZ}" "${SCRIPT_DIR}/hi3660-hikey960.dtb" > "${IMAGE_GZ_DTB}"
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80 | check_error $? "Appending DTB to ${IMAGE_GZ}"
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81 |
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82 | # Create the fastboot image with a fake "RAM disk"
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83 | "${SCRIPT_DIR}/mkfastboot" --kernel ${IMAGE_GZ_DTB} --ramdisk "${SCRIPT_DIR}/hikey960.rd" --base 0x0 --tags-addr 0x07a00000 --kernel_offset 0x00080000 --ramdisk_offset 0x07c00000 --output "${IMAGE_FASTBOOT}"
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84 | check_error $? "Converting ${IMAGE_GZ_DTB} to a fastboot image"
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85 |
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86 | # Deploy the fastboot image on a HiKey 960 board connected to the host machine
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87 | fastboot boot "${IMAGE_FASTBOOT}"
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88 | check_error $? "Deploying ${IMAGE_FASTBOOT}"
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