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

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