ar71xx: rename om2p.sh upgrade script to openmesh.sh
[openwrt.git] / target / linux / ar71xx / base-files / lib / upgrade / openmesh.sh
1 # The U-Boot loader of the OM2P requires image sizes and checksums to be
2 # provided in the U-Boot environment.
3 # The OM2P comes with 2 main partitions - while one is active sysupgrade
4 # will flash the other. The boot order is changed to boot the newly
5 # flashed partition. If the new partition can't be booted due to upgrade
6 # failures the previously used partition is loaded.
7
8 trim()
9 {
10         echo $1
11 }
12
13 cfg_value_get()
14 {
15         local cfg=$1 cfg_opt
16         local section=$2 our_section=0
17         local param=$3 our_param=
18
19         for cfg_opt in $cfg
20                 do
21                         [ "$cfg_opt" = "[$section]" ] && our_section=1 && continue
22                         [ "$our_section" = "1" ] || continue
23
24                         our_param=$(echo ${cfg_opt%%=*})
25                         [ "$param" = "$our_param" ] && echo ${cfg_opt##*=} && break
26                 done
27 }
28
29 # make sure we got uboot-envtools and fw_env.config copied over to the ramfs
30 platform_add_ramfs_ubootenv()
31 {
32         [ -e /usr/sbin/fw_printenv ] && install_bin /usr/sbin/fw_printenv /usr/sbin/fw_setenv
33         [ -e /etc/fw_env.config ] && install_file /etc/fw_env.config
34 }
35 append sysupgrade_pre_upgrade platform_add_ramfs_ubootenv
36
37 platform_check_image_om2p()
38 {
39         local img_magic=$1
40         local img_path=$2
41         local fw_printenv=/usr/sbin/fw_printenv
42         local img_board_target= img_num_files= i=0
43         local cfg_name= kernel_name= rootfs_name=
44
45         case "$img_magic" in
46                 # Combined Extended Image v1
47                 43453031)
48                         img_board_target=$(trim $(dd if="$img_path" bs=4 skip=1 count=8 2>/dev/null))
49                         img_num_files=$(trim $(dd if="$img_path" bs=2 skip=18 count=1 2>/dev/null))
50                         ;;
51                 *)
52                         echo "Invalid image ($img_magic). Use combined extended images on this platform"
53                         return 1
54                         ;;
55         esac
56
57         case "$img_board_target" in
58                 OM2P)
59                         ;;
60                 *)
61                         echo "Invalid board target ($img_board_target). Use the correct image for this platform"
62                         return 1
63                         ;;
64         esac
65
66         [ $img_num_files -ne 3 ] && {
67                 echo "Invalid number of embedded images ($img_num_files). Use the correct image for this platform"
68                 return 1
69         }
70
71         cfg_name=$(trim $(dd if="$img_path" bs=2 skip=19 count=16 2>/dev/null))
72
73         [ "$cfg_name" != "fwupgrade.cfg" ] && {
74                 echo "Invalid embedded config file ($cfg_name). Use the correct image for this platform"
75                 return 1
76         }
77
78         kernel_name=$(trim $(dd if="$img_path" bs=2 skip=55 count=16 2>/dev/null))
79
80         [ "$kernel_name" != "kernel" ] && {
81                 echo "Invalid embedded kernel file ($kernel_name). Use the correct image for this platform"
82                 return 1
83         }
84
85         rootfs_name=$(trim $(dd if="$img_path" bs=2 skip=91 count=16 2>/dev/null))
86
87         [ "$rootfs_name" != "rootfs" ] && {
88                 echo "Invalid embedded kernel file ($rootfs_name). Use the correct image for this platform"
89                 return 1
90         }
91
92         [ ! -x "$fw_printenv" ] && {
93                 echo "Please install uboot-envtools!"
94                 return 1
95         }
96
97         [ ! -r "/etc/fw_env.config" ] && {
98                 echo "/etc/fw_env.config is missing"
99                 return 1
100         }
101
102         return 0
103 }
104
105 platform_do_upgrade_om2p()
106 {
107         local img_path=$1
108         local kernel_start_addr= kernel_size= kernel_md5=
109         local rootfs_size= rootfs_checksize= rootfs_md5=
110         local kernel_bsize= total_size=7340032
111         local data_offset=$((64 * 1024)) block_size=$((256 * 1024)) offset=
112         local uboot_env_upgrade="/tmp/fw_env_upgrade"
113         local cfg_size= kernel_size= rootfs_size=
114         local append=""
115
116         [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
117
118         cfg_size=$(dd if="$img_path" bs=2 skip=35 count=4 2>/dev/null)
119         kernel_size=$(dd if="$img_path" bs=2 skip=71 count=4 2>/dev/null)
120         rootfs_size=$(dd if="$img_path" bs=2 skip=107 count=4 2>/dev/null)
121
122         cfg_content=$(dd if="$img_path" bs=1 skip=$data_offset count=$(echo $((0x$cfg_size))) 2>/dev/null)
123
124         kernel_md5=$(cfg_value_get "$cfg_content" "vmlinux" "md5sum")
125         rootfs_md5=$(cfg_value_get "$cfg_content" "rootfs" "md5sum")
126         rootfs_checksize=$(cfg_value_get "$cfg_content" "rootfs" "checksize")
127
128         if [ "$((0x$kernel_size % $block_size))" = "0" ]
129                 then
130                         kernel_bsize=$(echo $((0x$kernel_size)))
131                 else
132                         kernel_bsize=$((0x$kernel_size + ($block_size - (0x$kernel_size % $block_size))))
133         fi
134
135         mtd -q erase inactive
136
137         offset=$(echo $(($data_offset + 0x$cfg_size + 0x$kernel_size)))
138         dd if="$img_path" bs=1 skip=$offset count=$(echo $((0x$rootfs_size))) 2>&- | mtd -n -p $kernel_bsize $append write - "inactive"
139
140         offset=$(echo $(($data_offset + 0x$cfg_size)))
141         dd if="$img_path" bs=1 skip=$offset count=$(echo $((0x$kernel_size))) 2>&- | mtd -n write - "inactive"
142
143         rm $uboot_env_upgrade 2>&-
144
145         if [ "$(grep 'mtd3:.*inactive' /proc/mtd)" ]
146                 then
147                         printf "kernel_size_1 %u\n" $(($kernel_bsize / 1024)) >> $uboot_env_upgrade
148                         printf "rootfs_size_1 %u\n" $((($total_size - $kernel_bsize) / 1024)) >> $uboot_env_upgrade
149                         printf "bootseq 1,2\n" >> $uboot_env_upgrade
150                         kernel_start_addr=0x9f1c0000
151                 else
152                         printf "kernel_size_2 %u\n" $(($kernel_bsize / 1024)) >> $uboot_env_upgrade
153                         printf "rootfs_size_2 %u\n" $((($total_size - $kernel_bsize) / 1024)) >> $uboot_env_upgrade
154                         printf "bootseq 2,1\n" >> $uboot_env_upgrade
155                         kernel_start_addr=0x9f8c0000
156         fi
157
158         printf "vmlinux_start_addr %s\n" $kernel_start_addr >> $uboot_env_upgrade
159         printf "vmlinux_size 0x%s\n" $kernel_size >> $uboot_env_upgrade
160         printf "vmlinux_checksum %s\n" $kernel_md5 >> $uboot_env_upgrade
161         printf "rootfs_start_addr 0x%x\n" $(($kernel_start_addr + $kernel_bsize)) >> $uboot_env_upgrade
162         printf "rootfs_size %s\n" $rootfs_checksize >> $uboot_env_upgrade
163         printf "rootfs_checksum %s\n" $rootfs_md5 >> $uboot_env_upgrade
164
165         fw_setenv -s $uboot_env_upgrade || {
166                 echo "failed to update U-Boot environment"
167                 return 1
168         }
169 }