3 files changed, 98 insertions, 0 deletions
diff --git a/target/linux/ipq806x/base-files/lib/ipq806x.sh b/target/linux/ipq806x/base-files/lib/ipq806x.sh
index 73202c0b88..8157e6afac 100644
--- a/target/linux/ipq806x/base-files/lib/ipq806x.sh
+++ b/target/linux/ipq806x/base-files/lib/ipq806x.sh
@@ -29,6 +29,9 @@ ipq806x_board_detect() {
 	*"R7500")
 		name="r7500"
 		;;
+	*"Linksys EA8500"*)
+		name="ea8500"
+		;;
 	esac
 
 	[ -z "$name" ] && name="unknown"
diff --git a/target/linux/ipq806x/base-files/lib/upgrade/linksys.sh b/target/linux/ipq806x/base-files/lib/upgrade/linksys.sh
new file mode 100644
index 0000000000..ca5161a61b
--- /dev/null
+++ b/target/linux/ipq806x/base-files/lib/upgrade/linksys.sh
@@ -0,0 +1,88 @@
+#
+# Copyright (C) 2014-2015 OpenWrt.org
+#
+
+linksys_get_target_firmware() {
+	cur_boot_part=`/usr/sbin/fw_printenv -n boot_part`
+	target_firmware=""
+	if [ "$cur_boot_part" = "1" ]
+	then
+		# current primary boot - update alt boot
+		target_firmware="kernel2"
+		fw_setenv boot_part 2
+		#In EA8500 bootcmd is always "bootipq", so don't change
+		#fw_setenv bootcmd "run altnandboot"
+	elif [ "$cur_boot_part" = "2" ]
+	then
+		# current alt boot - update primary boot
+		target_firmware="kernel1"
+		fw_setenv boot_part 1
+		#In EA8500 bootcmd is always "bootipq", so don't change
+		#fw_setenv bootcmd "run nandboot"
+	fi
+
+	# re-enable recovery so we get back if the new firmware is broken
+	fw_setenv auto_recovery yes
+
+	echo "$target_firmware"
+}
+
+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 "$1")"
+
+	mkdir -p /var/lock
+	local part_label="$(linksys_get_target_firmware)"
+	touch /var/lock/fw_printenv.lock
+
+	if [ ! -n "$part_label" ]
+	then
+		echo "cannot find target partition"
+		exit 1
+	fi
+
+	local target_mtd=$(find_mtd_part $part_label)
+
+	[ "$magic_long" = "73797375" ] && {
+		CI_KERNPART="$part_label"
+		if [ "$part_label" = "kernel1" ]
+		then
+			CI_UBIPART="rootfs1"
+		else
+			CI_UBIPART="rootfs2"
+		fi
+
+		nand_upgrade_tar "$1"
+	}
+	[ "$magic_long" = "27051956" ] && {
+		# check firmwares' rootfs types
+		local target_mtd=$(find_mtd_part $part_label)
+		local oldroot="$(linksys_get_root_magic $target_mtd)"
+		local newroot="$(linksys_get_root_magic "$1")"
+
+		if [ "$newroot" = "55424923" -a "$oldroot" = "55424923" ]
+		# we're upgrading from a firmware with UBI to one with UBI
+		then
+			# erase everything to be safe
+			mtd erase $part_label
+			get_image "$1" | mtd -n write - $part_label
+		else
+			get_image "$1" | mtd write - $part_label
+		fi
+	}
+}
+
+linksys_preupgrade() {
+	export RAMFS_COPY_BIN="${RAMFS_COPY_BIN} /usr/sbin/fw_printenv /usr/sbin/fw_setenv"
+	export RAMFS_COPY_BIN="${RAMFS_COPY_BIN} /bin/mkdir /bin/touch"
+	export RAMFS_COPY_DATA="${RAMFS_COPY_DATA} /etc/fw_env.config /var/lock/fw_printenv.lock"
+
+	[ -f /tmp/sysupgrade.tgz ] && {
+		cp /tmp/sysupgrade.tgz /tmp/syscfg/sysupgrade.tgz
+	}
+}
+
+append sysupgrade_pre_upgrade linksys_preupgrade
diff --git a/target/linux/ipq806x/base-files/lib/upgrade/platform.sh b/target/linux/ipq806x/base-files/lib/upgrade/platform.sh
index a181f13b43..2b6f61d7be 100644
--- a/target/linux/ipq806x/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ipq806x/base-files/lib/upgrade/platform.sh
@@ -8,6 +8,7 @@ platform_check_image() {
 	case "$board" in
 	ap148 |\
 	d7800 |\
+	ea8500 |\
 	r7500)
 		nand_do_platform_check $board $1
 		return $?;
@@ -34,6 +35,9 @@ platform_pre_upgrade() {
 	r7500)
 		nand_do_upgrade "$1"
 		;;
+	ea8500)
+		linksys_preupgrade "$1"
+		;;
 	esac
 }
 
@@ -46,5 +50,8 @@ platform_do_upgrade() {
 		MTD_CONFIG_ARGS="-s 0x200000"
 		default_do_upgrade "$ARGV"
 		;;
+	ea8500)
+		platform_do_upgrade_linksys "$ARGV"
+		;;
 	esac
 }