ixp4xx: add sysupgrade support

[openwrt/svn-archive/archive.git] / target / linux / ixp4xx / base-files / lib / upgrade / platform.sh

diff --git a/target/linux/ixp4xx/base-files/lib/upgrade/platform.sh b/target/linux/ixp4xx/base-files/lib/upgrade/platform.sh
new file mode 100644 (file)
index 0000000..63be293
--- /dev/null
+++ b/target/linux/ixp4xx/base-files/lib/upgrade/platform.sh
@@ -0,0 +1,156 @@
+. /lib/ixp4xx.sh
+
+RAMFS_COPY_DATA="/lib/ixp4xx.sh"
+
+# testing
+RAMFS_COPY_BIN="/usr/bin/less /usr/bin/hexdump"
+
+CI_BLKSZ=65536
+CI_LDADR=0x00800000
+
+platform_find_partitions() {
+       local first dev size erasesize name
+       while read dev size erasesize name; do
+               name=${name#'"'}; name=${name%'"'}
+               case "$name" in
+                       vmlinux.bin.l7|kernel|linux|rootfs)
+                               if [ -z "$first" ]; then
+                                       first="$name"
+                               else
+                                       echo "$erasesize:$first:$name"
+                                       break
+                               fi
+                       ;;
+               esac
+       done < /proc/mtd
+}
+
+platform_find_kernelpart() {
+       local part
+       for part in "${1%:*}" "${1#*:}"; do
+               case "$part" in
+                       vmlinux.bin.l7|kernel|linux)
+                               echo "$part"
+                               break
+                       ;;
+               esac
+       done
+}
+
+platform_find_part_size() {
+       local first dev size erasesize name
+       while read dev size erasesize name; do
+               name=${name#'"'}; name=${name%'"'}
+               [ "$name" = "$1" ] && {
+                       echo "$size"
+                       break
+               }
+       done < /proc/mtd
+}
+
+platform_do_upgrade_combined() {
+       local partitions=$(platform_find_partitions)
+       local kernelpart=$(platform_find_kernelpart "${partitions#*:}")
+       local erase_size=$((0x${partitions%%:*})); partitions="${partitions#*:}"
+       local kern_part_size=0x$(platform_find_part_size "$kernelpart")
+       local kern_part_blocks=$(($kern_part_size / $CI_BLKSZ))
+       local kern_length=0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null)
+       local kern_blocks=$(($kern_length / $CI_BLKSZ))
+       local root_blocks=$((0x$(dd if="$1" bs=2 skip=5 count=4 2>/dev/null) / $CI_BLKSZ))
+
+       v "platform_do_upgrade_combined"
+       v "partitions=$partitions"
+       v "kernelpart=$kernelpart"
+       v "kernel_part_size=$kern_part_size"
+       v "kernel_part_blocks=$kern_part_blocks"
+       v "kern_length=$kern_length"
+       v "erase_size=$erase_size" 
+       v "kern_blocks=$kern_blocks"
+       v "root_blocks=$root_blocks"
+       v "kern_pad_blocks=$(($kern_part_blocks-$kern_blocks))"
+
+       if [ -n "$partitions" ] && [ -n "$kernelpart" ] && \
+          [ ${kern_blocks:-0} -gt 0 ] && \
+          [ ${root_blocks:-0} -gt 0 ] && \
+          [ ${erase_size:-0} -gt 0 ];
+       then
+               local append=""
+               [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
+
+               # write the kernel
+               dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null | \
+                       mtd -F$kernelpart:$kern_part_size:$CI_LDADR write - $kernelpart
+               # write the rootfs
+               dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null | \
+                       mtd $append write - rootfs
+       else
+               echo "invalid image"
+       fi
+}
+
+platform_check_image() {
+       local board=$(ixp4xx_board_name)
+       local magic="$(get_magic_word "$1")"
+       local partitions=$(platform_find_partitions)
+       local kernelpart=$(platform_find_kernelpart "${partitions#*:}")
+       local kern_part_size=0x$(platform_find_part_size "$kernelpart")
+       local kern_length=0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null)
+
+       [ "$ARGC" -gt 1 ] && return 1
+
+       case "$board" in
+       avila | cambria )
+               [ "$magic" != "4349" ] && {
+                       echo "Invalid image. Use *-sysupgrade.bin files on this board"
+                       return 1
+               }
+
+               kern_length_b=$(printf '%d' $kern_length)
+               kern_part_size_b=$(printf '%d' $kern_part_size)
+               if [ $kern_length_b -gt $kern_part_size_b ]; then
+                       echo "Invalid image. Kernel size ($kern_length) exceeds kernel partition ($kern_part_size)"
+                       return 1
+               fi 
+
+               local md5_img=$(dd if="$1" bs=2 skip=9 count=16 2>/dev/null)
+               local md5_chk=$(dd if="$1" bs=$CI_BLKSZ skip=1 2>/dev/null | md5sum -); md5_chk="${md5_chk%% *}"
+               if [ -n "$md5_img" -a -n "$md5_chk" ] && [ "$md5_img" = "$md5_chk" ]; then
+                       return 0
+               else
+                       echo "Invalid image. Contents do not match checksum (image:$md5_img calculated:$md5_chk)"
+                       return 1
+               fi
+
+               return 0
+               ;;
+       esac
+
+       echo "Sysupgrade is not yet supported on $board."
+       return 1
+}
+
+platform_do_upgrade() {
+       local board=$(ixp4xx_board_name)
+
+       v "board=$board"
+       case "$board" in
+       avila | cambria )
+               platform_do_upgrade_combined "$ARGV"
+               ;;
+       *)
+               default_do_upgrade "$ARGV"
+               ;;
+       esac
+}
+
+disable_watchdog() {
+       v "killing watchdog"
+       killall watchdog
+       ( ps | grep -v 'grep' | grep '/dev/watchdog' ) && {
+               echo 'Could not disable watchdog'
+               return 1
+       }
+}
+
+# CONFIG_WATCHDOG_NOWAYOUT=y - can't kill watchdog unless kernel cmdline has a mpcore_wdt.nowayout=0
+#append sysupgrade_pre_upgrade disable_watchdog