1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
REQUIRE_IMAGE_METADATA=1
# Full system upgrade including preloader for MediaTek SoCs on eMMC or SD
mtk_mmc_full_upgrade() {
local diskdev partdev diff oldrecovery
if grep -q root=/dev/mmcblk0p2 /proc/cmdline; then
oldrecovery=1
else
oldrecovery=2
fi
export_bootdevice && export_partdevice diskdev 0 || {
echo "Unable to determine upgrade device"
return 1
}
#Keep the persistent random mac address (if it exists)
mkdir -p /tmp/recovery
export_partdevice recoverydev $oldrecovery
if mount -o rw,noatime "/dev/$recoverydev" -tvfat /tmp/recovery; then
[ -f "/tmp/recovery/mac_addr" ] && cp /tmp/recovery/mac_addr /tmp/
umount /tmp/recovery
fi
sync
if [ "$SAVE_PARTITIONS" = "1" ]; then
get_partitions "/dev/$diskdev" bootdisk
#extract the boot sector from the image
get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b
get_partitions /tmp/image.bs image
#compare tables
diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
else
diff=1
fi
if [ -n "$diff" ]; then
get_image "$@" | dd of="/dev/$diskdev" bs=4096 conv=fsync
# Separate removal and addition is necessary; otherwise, partition 1
# will be missing if it overlaps with the old partition 2
partx -d - "/dev/$diskdev"
partx -a - "/dev/$diskdev"
else
# iterate over each partition from the image and write it to the boot disk
while read part start size; do
part="$(($part - 2))"
if export_partdevice partdev $part; then
echo "Writing image to /dev/$partdev..."
get_image "$@" | dd of="/dev/$partdev" ibs="512" obs=1M skip="$start" count="$size" conv=fsync
else
echo "Unable to find partition $part device, skipped."
fi
done < /tmp/partmap.image
#copy partition uuid
echo "Writing new UUID to /dev/$diskdev..."
get_image "$@" | dd of="/dev/$diskdev" bs=1 skip=440 count=4 seek=440 conv=fsync
fi
export_partdevice recoverydev 2
if mount -o rw,noatime "/dev/$recoverydev" -t vfat /tmp/recovery; then
[ -f "/tmp/mac_addr" ] && cp /tmp/mac_addr /tmp/recovery
if [ "$diskdev" = "mmcblk0" -a -r /tmp/recovery/eMMCboot.bin ]; then
echo 0 > /sys/block/mmcblk0boot0/force_ro
dd if=/tmp/recovery/eMMCboot.bin of=/dev/mmcblk0boot0 conv=fsync
sync
echo 1 > /sys/block/mmcblk0boot0/force_ro
fi
sync
umount /tmp/recovery
fi
}
platform_do_upgrade() {
local board=$(board_name)
case "$board" in
bananapi,bpi-r2)
mtk_mmc_full_upgrade "$1"
;;
unielec,u7623-02-emmc-512m)
local magic="$(get_magic_long "$1")"
if [ "$magic" = "53444d4d" ]; then
mtk_mmc_full_upgrade "$1"
else # Old partial image starting with uImage
# Keep the persistent random mac address (if it exists)
recoverydev=mmcblk0p1
mkdir -p /tmp/recovery
mount -o rw,noatime /dev/$recoverydev /tmp/recovery
[ -f "/tmp/recovery/mac_addr" ] && \
mv -f /tmp/recovery/mac_addr /tmp/
umount /tmp/recovery
# 1310720 is the offset in bytes from the start of eMMC and to
# the location of the kernel (2560 512 byte sectors)
get_image "$1" | dd of=/dev/mmcblk0 bs=1310720 seek=1 conv=fsync
mount -o rw,noatime /dev/$recoverydev /tmp/recovery
[ -f "/tmp/mac_addr" ] && mv -f /tmp/mac_addr /tmp/recovery
sync
umount /tmp/recovery
fi
;;
*)
default_do_upgrade "$1"
;;
esac
}
PART_NAME=firmware
platform_check_image() {
local board=$(board_name)
local magic="$(get_magic_long "$1")"
local diskdev partdev diff
[ "$#" -gt 1 ] && return 1
case "$board" in
bananapi,bpi-r2)
[ "$magic" != "53444d4d" ] && {
echo "Invalid image type."
return 1
}
export_bootdevice && export_partdevice diskdev 0 || {
echo "Unable to determine upgrade device"
return 1
}
get_partitions "/dev/$diskdev" bootdisk
#extract the boot sector from the image
get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b 2>/dev/null
get_partitions /tmp/image.bs image
#compare tables
diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
rm -f /tmp/image.bs /tmp/partmap.bootdisk /tmp/partmap.image
if [ -n "$diff" ]; then
echo "Partition layout has changed. Full image will be written."
ask_bool 0 "Abort" && exit 1
return 0
fi
;;
unielec,u7623-02-emmc-512m)
# Can always upgrade to the new-style full image
[ "$magic" = "53444d4d" ] && return 0
# Legacy uImage directly at 0xA00 on the eMMC.
[ "$magic" != "27051956" ] && {
echo "Invalid image type."
return 1
}
rootpart=$(cat /proc/cmdline)
rootpart="${rootpart##*root=}"
rootpart="${rootpart%% *}"
[ "$rootpart" != "/dev/mmcblk0p2" ] && {
echo "Cannot downgrade to legacy image."
return 1
}
return 0
;;
*)
echo "Sysupgrade is not supported on your board yet."
return 1
;;
esac
return 0
}
platform_copy_config() {
case "$(board_name)" in
bananapi,bpi-r2|\
unielec,u7623-02-emmc-512m)
# platform_do_upgrade() will have set $recoverydev
if [ -n "$recoverydev" ]; then
mkdir -p /tmp/recovery
mount -o rw,noatime "/dev/$recoverydev" -t vfat /tmp/recovery
cp -af "$UPGRADE_BACKUP" "/tmp/recovery/$BACKUP_FILE"
sync
umount /tmp/recovery
fi
;;
esac
}
|
