fix

root/target/linux/ipq40xx/base-files/etc/inittab

@@ -0,0 +1,5 @@
+# Copyright (c) 2013 The Linux Foundation. All rights reserved.
+::sysinit:/etc/init.d/rcS S boot
+::shutdown:/etc/init.d/rcS K shutdown
+ttyMSM0::askfirst:/usr/libexec/login.sh
+ttyMSM1::askfirst:/usr/libexec/login.sh

root/target/linux/ipq40xx/base-files/etc/uci-defaults/04_led_migration

@@ -0,0 +1,19 @@
+. /lib/functions/migrations.sh
+
+board=$(board_name)
+
+case "$board" in
+engenius,emr3500)
+	migrate_leds "emr3500:="
+	;;
+engenius,ens620ext|\
+zyxel,nbg6617)
+	migrate_leds ":wlan2G=:wlan2g" ":wlan5G=:wlan5g"
+	;;
+esac
+
+remove_devicename_leds
+
+migrations_apply system
+
+exit 0

root/target/linux/ipq40xx/base-files/lib/upgrade/linksys.sh

@@ -0,0 +1,122 @@
+linksys_get_target_firmware() {
+	local cur_boot_part mtd_ubi0
+
+	cur_boot_part="$(/usr/sbin/fw_printenv -n boot_part)"
+	if [ -z "${cur_boot_part}" ]; then
+		mtd_ubi0=$(cat /sys/devices/virtual/ubi/ubi0/mtd_num)
+		case "$(grep -E "^mtd${mtd_ubi0}:" /proc/mtd | cut -d '"' -f 2)" in
+		kernel|rootfs)
+			cur_boot_part=1
+			;;
+		alt_kernel|alt_rootfs)
+			cur_boot_part=2
+			;;
+		esac
+		>&2 printf "Current boot_part='%s' selected from ubi0/mtd_num='%s'" \
+			"${cur_boot_part}" "${mtd_ubi0}"
+	fi
+
+	# OEM U-Boot for EA6350v3, EA8300 and MR8300; bootcmd=
+	#  if test $auto_recovery = no;
+	#      then bootipq;
+	#  elif test $boot_part = 1;
+	#      then run bootpart1;
+	#      else run bootpart2;
+	#  fi
+
+	case "$cur_boot_part" in
+	1)
+		fw_setenv -s - <<-EOF
+			boot_part 2
+			auto_recovery yes
+		EOF
+		printf "alt_kernel"
+		return
+		;;
+	2)
+		fw_setenv -s - <<-EOF
+			boot_part 1
+			auto_recovery yes
+		EOF
+		printf "kernel"
+		return
+		;;
+	*)
+		return
+		;;
+	esac
+}
+
+linksys_get_root_magic() {
+	(get_image "$@" | dd skip=786432 bs=4 count=1 | hexdump -v -n 4 -e '1/1 "%02x"') 2>/dev/null
+}
+
+platform_do_upgrade_linksys() {
+	local magic_long="$(get_magic_long "$1")"
+
+	local rm_oem_fw_vols="squashfs ubifs"	# from OEM [alt_]rootfs UBI
+	local vol
+
+	mkdir -p /var/lock
+	local part_label="$(linksys_get_target_firmware)"
+	touch /var/lock/fw_printenv.lock
+
+	if [ -z "$part_label" ]; then
+		echo "cannot find target partition"
+		exit 1
+	fi
+
+	local target_mtd=$(find_mtd_part "$part_label")
+
+	[ "$magic_long" = "73797375" ] && {
+		CI_KERNPART="$part_label"
+		if [ "$part_label" = "kernel" ]; then
+			CI_UBIPART="rootfs"
+		else
+			CI_UBIPART="alt_rootfs"
+		fi
+
+		local mtdnum="$(find_mtd_index "$CI_UBIPART")"
+		if [ ! "$mtdnum" ]; then
+			echo "cannot find ubi mtd partition $CI_UBIPART"
+			return 1
+		fi
+
+		local ubidev="$(nand_find_ubi "$CI_UBIPART")"
+		if [ ! "$ubidev" ]; then
+			ubiattach -m "$mtdnum"
+			sync
+			ubidev="$(nand_find_ubi "$CI_UBIPART")"
+		fi
+
+		if [ "$ubidev" ]; then
+			for vol in $rm_oem_fw_vols; do
+				ubirmvol "/dev/$ubidev" -N "$vol" 2>/dev/null
+			done
+		fi
+
+		# complete std upgrade
+		nand_upgrade_tar "$1"
+	}
+
+	[ "$magic_long" = "27051956" ] && {
+		# This magic is for a uImage (which is a sysupgrade image)
+		# check firmwares' rootfs types
+		local oldroot="$(linksys_get_root_magic "$target_mtd")"
+		local newroot="$(linksys_get_root_magic "$1")"
+
+		if [ "$newroot" = "55424923" ] && [ "$oldroot" = "55424923" ]; then
+			# we're upgrading from a firmware with UBI to one with UBI
+			# erase everything to be safe
+			# - Is that really needed? Won't remove (or comment) the if,
+			#   because it may be needed in a future device.
+			#mtd erase $part_label
+			#get_image "$1" | mtd -n write - $part_label
+			echo "writing \"$1\" UBI image to \"$part_label\" (UBI)..."
+			get_image "$1" | mtd write - "$part_label"
+		else
+			echo "writing \"$1\" image to \"$part_label\""
+			get_image "$1" | mtd write - "$part_label"
+		fi
+	}
+}

root/target/linux/ipq40xx/base-files/lib/upgrade/openmesh.sh

@@ -0,0 +1,106 @@
+# The U-Boot loader of the OpenMesh devices requires image sizes and
+# checksums to be provided in the U-Boot environment.
+# The OpenMesh devices come with 2 main partitions - while one is active
+# sysupgrade will flash the other. The boot order is changed to boot the
+# newly flashed partition. If the new partition can't be booted due to
+# upgrade failures the previously used partition is loaded.
+
+platform_do_upgrade_openmesh() {
+	local tar_file="$1"
+	local restore_backup
+	local primary_kernel_mtd
+
+	local setenv_script="/tmp/fw_env_upgrade"
+
+	local kernel_mtd="$(find_mtd_index $PART_NAME)"
+	local kernel_offset="$(cat /sys/class/mtd/mtd${kernel_mtd}/offset)"
+	local total_size="$(cat /sys/class/mtd/mtd${kernel_mtd}/size)"
+
+	# detect to which flash region the new image is written to.
+	#
+	# 1. check what is the mtd index for the first flash region on this
+	#    device
+	# 2. check if the target partition ("inactive") has the mtd index of
+	#    the first flash region
+	#
+	#    - when it is: the new bootseq will be 1,2 and the first region is
+	#      modified
+	#    - when it isnt: bootseq will be 2,1 and the second region is
+	#      modified
+	#
+	# The detection has to be done via the hardcoded mtd partition because
+	# the current boot might be done with the fallback region. Let us
+	# assume that the current bootseq is 1,2. The bootloader detected that
+	# the image in flash region 1 is corrupt and thus switches to flash
+	# region 2. The bootseq in the u-boot-env is now still the same and
+	# the sysupgrade code can now only rely on the actual mtd indexes and
+	# not the bootseq variable to detect the currently booted flash
+	# region/image.
+	#
+	# In the above example, an implementation which uses bootseq ("1,2") to
+	# detect the currently booted image would assume that region 1 is booted
+	# and then overwrite the variables for the wrong flash region (aka the
+	# one which isn't modified). This could result in a device which doesn't
+	# boot anymore to Linux until it was reflashed with ap51-flash.
+	local next_boot_part="1"
+	case "$(board_name)" in
+	openmesh,a42)
+		primary_kernel_mtd=8
+		;;
+	openmesh,a62)
+		primary_kernel_mtd=10
+		;;
+	*)
+		echo "failed to detect primary kernel mtd partition for board"
+		return 1
+		;;
+	esac
+	[ "$kernel_mtd" = "$primary_kernel_mtd" ] || next_boot_part="2"
+
+	local board_dir=$(tar tf $tar_file | grep -m 1 '^sysupgrade-.*/$')
+	board_dir=${board_dir%/}
+
+	local kernel_length=$(tar xf $tar_file ${board_dir}/kernel -O | wc -c)
+	local rootfs_length=$(tar xf $tar_file ${board_dir}/root -O | wc -c)
+	# rootfs without EOF marker
+	rootfs_length=$((rootfs_length-4))
+
+	local kernel_md5=$(tar xf $tar_file ${board_dir}/kernel -O | md5sum); kernel_md5="${kernel_md5%% *}"
+	# md5 checksum of rootfs with EOF marker
+	local rootfs_md5=$(tar xf $tar_file ${board_dir}/root -O | dd bs=1 count=$rootfs_length | md5sum); rootfs_md5="${rootfs_md5%% *}"
+
+	#
+	# add tar support to get_image() to use default_do_upgrade() instead?
+	#
+
+	# take care of restoring a saved config
+	[ -n "$UPGRADE_BACKUP" ] && restore_backup="${MTD_CONFIG_ARGS} -j ${UPGRADE_BACKUP}"
+
+	mtd -q erase inactive
+	tar xf $tar_file ${board_dir}/root -O | mtd -n -p $kernel_length $restore_backup write - $PART_NAME
+	tar xf $tar_file ${board_dir}/kernel -O | mtd -n write - $PART_NAME
+
+	# prepare new u-boot env
+	if [ "$next_boot_part" = "1" ]; then
+		echo "bootseq 1,2" > $setenv_script
+	else
+		echo "bootseq 2,1" > $setenv_script
+	fi
+
+	printf "kernel_size_%i 0x%08x\n" $next_boot_part $kernel_length >> $setenv_script
+	printf "vmlinux_start_addr 0x%08x\n" ${kernel_offset} >> $setenv_script
+	printf "vmlinux_size 0x%08x\n" ${kernel_length} >> $setenv_script
+	printf "vmlinux_checksum %s\n" ${kernel_md5} >> $setenv_script
+
+	printf "rootfs_size_%i 0x%08x\n" $next_boot_part $((total_size-kernel_length)) >> $setenv_script
+	printf "rootfs_start_addr 0x%08x\n" $((kernel_offset+kernel_length)) >> $setenv_script
+	printf "rootfs_size 0x%08x\n" ${rootfs_length} >> $setenv_script
+	printf "rootfs_checksum %s\n" ${rootfs_md5} >> $setenv_script
+
+	# store u-boot env changes
+	mkdir -p /var/lock
+	fw_setenv -s $setenv_script || {
+		echo "failed to update U-Boot environment"
+		return 1
+	}
+}