From 523aba9ff9f9f4489f9c390ed703f29b0d8d9f43 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Wed, 25 Nov 2009 09:51:25 +0000
Subject: [PATCH] ar71xx: create combined images for the RS, RS-PRO and LS-SR71
 boards, and add sysupgrade support for them

SVN-Revision: 18531
---
 .../ar71xx/base-files/lib/upgrade/platform.sh | 84 ++++++++++++++++++-
 target/linux/ar71xx/image/Makefile            | 11 ++-
 2 files changed, 93 insertions(+), 2 deletions(-)

diff --git a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
index c4c56afdd0..ef84e84695 100755
--- a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
@@ -7,6 +7,60 @@
 PART_NAME=firmware
 RAMFS_COPY_DATA=/lib/ar71xx.sh
 
+CI_BLKSZ=65536
+CI_LDADR=0x80060000
+
+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_do_upgrade_combined() {
+	local partitions=$(platform_find_partitions)
+	local kernelpart=$(platform_find_kernelpart "${partitions#*:}")
+	local erase_size=$((0x${partitions%%:*})); partitions="${partitions#*:}"
+	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) / $CI_BLKSZ))
+
+	if [ -n "$partitions" ] && [ -n "$kernelpart" ] && \
+	   [ ${kern_blocks:-0} -gt 0 ] && \
+	   [ ${root_blocks:-0} -gt ${kern_blocks:-0} ] && \
+	   [ ${erase_size:-0} -gt 0 ];
+	then
+		local append=""
+		[ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
+
+		( dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null; \
+		  dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null ) | \
+			mtd -r $append -F$kernelpart:$kern_length:$CI_LDADR,rootfs write - $partitions
+	fi
+}
+
 platform_check_image() {
 	local board=$(ar71xx_board_name)
 	local magic="$(get_magic_word "$1")"
@@ -35,13 +89,41 @@ platform_check_image() {
 		}
 		return 0
 		;;
+	routerstation | routerstation-pro | ls-sr71)
+		[ "$magic" != "4349" ] && {
+			echo "Invalid image. Use *-sysupgrade.bin files on this board"
+			return 1
+		}
+
+		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
 }
 
-# use default for platform_do_upgrade()
+platform_do_upgrade() {
+	local board=$(ar71xx_board_name)
+
+	case "$board" in
+	routerstation | routerstation-pro)
+		platform_do_upgrade_combined "$ARGV"
+		;;
+	*)
+		default_do_upgrade "$ARGV"
+		;;
+	esac
+}
 
 disable_watchdog() {
 	killall watchdog
diff --git a/target/linux/ar71xx/image/Makefile b/target/linux/ar71xx/image/Makefile
index 24b1fa36aa..30663f12cb 100644
--- a/target/linux/ar71xx/image/Makefile
+++ b/target/linux/ar71xx/image/Makefile
@@ -161,7 +161,11 @@ define Image/Build/UBNT
 		-B $(4) -v $(5).$(6).OpenWrt.$(REVISION) \
 		-k $(KDIR)/vmlinux-$(2).lzma \
 		-r $(BIN_DIR)/openwrt-$(BOARD)-root.$(1) \
-		-o $(call imgname,$(1),$(2)).bin
+		-o $(call imgname,$(1),$(2))-factory.bin
+	-sh $(TOPDIR)/scripts/combined-image.sh \
+		"$(KDIR)/vmlinux-$(2).lzma" \
+		"$(BIN_DIR)/openwrt-$(BOARD)-root.$(1)" \
+		$(call imgname,$(1),$(2))-sysupgrade.bin
 endef
 
 define Image/Build/Planex
@@ -431,6 +435,11 @@ endef
 
 define Image/Build/squashfs
 	$(call prepare_generic_squashfs,$(KDIR)/root.squashfs)
+	dd if=$(KDIR)/root.squashfs of=$(KDIR)/root.squashfs-4k.tmp0 bs=4k conv=sync
+	$(call add_jffs2_mark,$(KDIR)/root.squashfs-4k.tmp0)
+	dd if=$(KDIR)/root.squashfs-4k.tmp0 of=$(IMGNAME)-root.squashfs-4k bs=4k conv=sync
+	$(call add_jffs2_mark,$(IMGNAME)-root.squashfs-4k)
+	rm -f $(KDIR)/root.squashfs-4k.tmp0
 endef
 
 define Image/Build
-- 
2.25.1