target/linux/mediatek/mt7623/base-files/lib/upgrade/platform.sh

   1
   2 REQUIRE_IMAGE_METADATA=1
   3 RAMFS_COPY_BIN='fwtool'
   4
   5 # Legacy full system upgrade including preloader for MediaTek SoCs on eMMC or SD
   6 legacy_mtk_mmc_full_upgrade() {
   7         local diskdev partdev diff oldrecovery
   8
   9         if grep -q root=/dev/mmcblk0p2 /proc/cmdline; then
  10             oldrecovery=1
  11         else
  12             oldrecovery=2
  13         fi
  14
  15         export_bootdevice && export_partdevice diskdev 0 || {
  16                 echo "Unable to determine upgrade device"
  17                 return 1
  18         }
  19
  20         #Keep the persistent random mac address (if it exists)
  21         mkdir -p /tmp/recovery
  22         export_partdevice recoverydev $oldrecovery
  23         if mount -o rw,noatime "/dev/$recoverydev" -tvfat /tmp/recovery; then
  24                 [ -f "/tmp/recovery/mac_addr" ] && cp /tmp/recovery/mac_addr /tmp/
  25                 umount /tmp/recovery
  26         fi
  27         sync
  28
  29         if [ "$UPGRADE_OPT_SAVE_PARTITIONS" = "1" ]; then
  30                 get_partitions "/dev/$diskdev" bootdisk
  31
  32                 #extract the boot sector from the image
  33                 get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b
  34
  35                 get_partitions /tmp/image.bs image
  36
  37                 #compare tables
  38                 diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
  39         else
  40                 diff=1
  41         fi
  42
  43         if [ -n "$diff" ]; then
  44                 get_image "$@" | dd of="/dev/$diskdev" bs=4096 conv=fsync
  45
  46                 # Separate removal and addition is necessary; otherwise, partition 1
  47                 # will be missing if it overlaps with the old partition 2
  48                 partx -d - "/dev/$diskdev"
  49                 partx -a - "/dev/$diskdev"
  50         else
  51                 # iterate over each partition from the image and write it to the boot disk
  52                 while read part start size; do
  53                         part="$(($part - 2))"
  54                         if export_partdevice partdev $part; then
  55                                 echo "Writing image to /dev/$partdev..."
  56                                 get_image "$@" | dd of="/dev/$partdev" ibs="512" obs=1M skip="$start" count="$size" conv=fsync
  57                         else
  58                             echo "Unable to find partition $part device, skipped."
  59                         fi
  60                 done < /tmp/partmap.image
  61
  62                 #copy partition uuid
  63                 echo "Writing new UUID to /dev/$diskdev..."
  64                 get_image "$@" | dd of="/dev/$diskdev" bs=1 skip=440 count=4 seek=440 conv=fsync
  65         fi
  66
  67         export_partdevice recoverydev 2
  68         if mount -o rw,noatime "/dev/$recoverydev" -t vfat /tmp/recovery; then
  69                 [ -f "/tmp/mac_addr" ] && cp /tmp/mac_addr /tmp/recovery
  70
  71                 if [ "$diskdev" = "mmcblk0" -a -r /tmp/recovery/eMMCboot.bin ]; then
  72                         echo 0 > /sys/block/mmcblk0boot0/force_ro
  73                         dd if=/tmp/recovery/eMMCboot.bin of=/dev/mmcblk0boot0 conv=fsync
  74                         sync
  75                         echo 1 > /sys/block/mmcblk0boot0/force_ro
  76                 fi
  77                 sync
  78                 umount /tmp/recovery
  79         fi
  80 }
  81
  82 platform_do_upgrade() {
  83         local board=$(board_name)
  84
  85         case "$board" in
  86         bananapi,bpi-r2|\
  87         unielec,u7623-02)
  88                 export_bootdevice
  89                 export_partdevice fitpart 3
  90                 [ "$fitpart" ] || return 1
  91                 EMMC_KERN_DEV="/dev/$fitpart"
  92                 emmc_do_upgrade "$1"
  93                 ;;
  94         unielec,u7623-02-emmc-512m)
  95                 local magic="$(get_magic_long "$1")"
  96                 if [ "$magic" = "53444d4d" ]; then
  97                         legacy_mtk_mmc_full_upgrade "$1"
  98                 else # Old partial image starting with uImage
  99                         # Keep the persistent random mac address (if it exists)
 100                         recoverydev=mmcblk0p1
 101                         mkdir -p /tmp/recovery
 102                         mount -o rw,noatime /dev/$recoverydev /tmp/recovery
 103                         [ -f "/tmp/recovery/mac_addr" ] && \
 104                                 mv -f /tmp/recovery/mac_addr /tmp/
 105                         umount /tmp/recovery
 106
 107                         # 1310720 is the offset in bytes from the start of eMMC and to
 108                         # the location of the kernel (2560 512 byte sectors)
 109                         get_image "$1" | dd of=/dev/mmcblk0 bs=1310720 seek=1 conv=fsync
 110
 111                         mount -o rw,noatime /dev/$recoverydev /tmp/recovery
 112                         [ -f "/tmp/mac_addr" ] && mv -f /tmp/mac_addr /tmp/recovery
 113                         sync
 114                         umount /tmp/recovery
 115                 fi
 116                 ;;
 117         *)
 118                 default_do_upgrade "$1"
 119                 ;;
 120         esac
 121 }
 122
 123 platform_check_image() {
 124         local magic="$(get_magic_long "$1")"
 125
 126         [ "$#" -gt 1 ] && return 1
 127
 128         case "$(board_name)" in
 129         bananapi,bpi-r2|\
 130         unielec,u7623-02)
 131                 [ "$magic" != "d00dfeed" ] && {
 132                         echo "Invalid image type."
 133                         return 1
 134                 }
 135                 ;;
 136         unielec,u7623-02-emmc-512m)
 137                 # Can always upgrade to the new-style full image
 138                 [ "$magic" = "53444d4d" ] && return 0
 139
 140                 # need to update to new bootchain via full image first
 141                 [ "$magic" = "d00dfeed" ] && {
 142                         echo "Please use full eMMC image to update bootloader first."
 143                         return 1
 144                 }
 145
 146                 # Legacy uImage directly at 0xA00 on the eMMC.
 147                 [ "$magic" != "27051956" ] && {
 148                         echo "Invalid image type."
 149                         return 1
 150                 }
 151                 ;;
 152         *)
 153                 echo "Sysupgrade is not supported on your board yet."
 154                 return 1
 155                 ;;
 156         esac
 157
 158         return 0
 159 }
 160
 161 platform_copy_config() {
 162         case "$(board_name)" in
 163         bananapi,bpi-r2|\
 164         unielec,u7623-02)
 165                 emmc_copy_config
 166                 ;;
 167         unielec,u7623-02-emmc-512m)
 168                 # platform_do_upgrade() will have set $recoverydev
 169                 if [ -n "$recoverydev" ]; then
 170                         mkdir -p /tmp/recovery
 171                         mount -o rw,noatime "/dev/$recoverydev" -t vfat /tmp/recovery
 172                         cp -af "$UPGRADE_BACKUP" "/tmp/recovery/$BACKUP_FILE"
 173                         sync
 174                         umount /tmp/recovery
 175                 fi
 176                 ;;
 177         esac
 178 }