imx: decouple sdcard sysupgrade from Apalis boards

Sysupgrade procedure for i.MX 6 Apalis boards is suitable for most other
i.MX boards booting from eMMC or SD card. Extract the common parts and
decouple the procedure from "apalis" board name in sysupgrade TAR
contents, so the procedure is reusable for i.MX 7 boards.

Signed-off-by: Lech Perczak <lech.perczak@gmail.com>

4 files changed, 67 insertions, 56 deletions

diff --git a/target/linux/imx/base-files/lib/imx.sh b/target/linux/imx/base-files/lib/imx.sh
new file mode 100644
index 0000000000..a451de3779
--- /dev/null
+++ b/target/linux/imx/base-files/lib/imx.sh
@@ -0,0 +1,63 @@
+#
+# Copyright (C) 2010-2013 OpenWrt.org
+#
+
+rootpartuuid() {
+	local cmdline=$(cat /proc/cmdline)
+	local bootpart=${cmdline##*root=}
+	bootpart=${bootpart%% *}
+	local uuid=${bootpart#PARTUUID=}
+	echo ${uuid%-02}
+}
+
+bootdev_from_uuid() {
+	blkid | grep "PTUUID=\"$(rootpartuuid)\"" | cut -d : -f1
+}
+
+bootpart_from_uuid() {
+	blkid | grep $(rootpartuuid)-01 | cut -d : -f1
+}
+
+rootpart_from_uuid() {
+	blkid | grep $(rootpartuuid)-02 | cut -d : -f1
+}
+
+imx_sdcard_mount_boot() {
+	mkdir -p /boot
+	[ -f /boot/uImage ] || {
+		mount -o rw,noatime $(bootpart_from_uuid) /boot > /dev/null
+	}
+}
+
+imx_sdcard_copy_config() {
+	imx_sdcard_mount_boot
+	cp -af "$UPGRADE_BACKUP" "/boot/$BACKUP_FILE"
+	sync
+	umount /boot
+}
+
+imx_sdcard_do_upgrade() {
+	local board_dir="$(tar tf "${1}" | grep -m 1 '^sysupgrade-.*/$')"
+	board_dir="${board_dir%/}"
+
+	imx_sdcard_mount_boot
+	get_image "$1" | tar Oxf - ${board_dir}/kernel > /boot/uImage
+	get_image "$1" | tar Oxf - ${board_dir}/root > $(rootpart_from_uuid)
+	sync
+	umount /boot
+}
+
+imx_sdcard_pre_upgrade() {
+	[ -z "$UPGRADE_BACKUP" ] && {
+		jffs2reset -y
+		umount /overlay
+	}
+}
+
+imx_sdcard_move_config() {
+	if [ -b $(bootpart_from_uuid) ]; then
+		imx_sdcard_mount_boot
+		[ -f "/boot/$BACKUP_FILE" ] && mv -f "/boot/$BACKUP_FILE" /
+		umount /boot
+	fi
+}
diff --git a/target/linux/imx/cortexa9/base-files/lib/imx.sh b/target/linux/imx/cortexa9/base-files/lib/imx.sh
deleted file mode 100644
index 46d2eeb006..0000000000
--- a/target/linux/imx/cortexa9/base-files/lib/imx.sh
+++ /dev/null
@@ -1,30 +0,0 @@
-#
-# Copyright (C) 2010-2013 OpenWrt.org
-#
-
-rootpartuuid() {
-	local cmdline=$(cat /proc/cmdline)
-	local bootpart=${cmdline##*root=}
-	bootpart=${bootpart%% *}
-	local uuid=${bootpart#PARTUUID=}
-	echo ${uuid%-02}
-}
-
-bootdev_from_uuid() {
-	blkid | grep "PTUUID=\"$(rootpartuuid)\"" | cut -d : -f1
-}
-
-bootpart_from_uuid() {
-	blkid | grep $(rootpartuuid)-01 | cut -d : -f1
-}
-
-rootpart_from_uuid() {
-	blkid | grep $(rootpartuuid)-02 | cut -d : -f1
-}
-
-apalis_mount_boot() {
-	mkdir -p /boot
-	[ -f /boot/uImage ] || {
-		mount -o rw,noatime $(bootpart_from_uuid) /boot > /dev/null
-	}
-}
diff --git a/target/linux/imx/cortexa9/base-files/lib/preinit/79_move_config b/target/linux/imx/cortexa9/base-files/lib/preinit/79_move_config
index 7188c2d8f4..a2e3aa3b86 100644
--- a/target/linux/imx/cortexa9/base-files/lib/preinit/79_move_config
+++ b/target/linux/imx/cortexa9/base-files/lib/preinit/79_move_config
@@ -9,11 +9,7 @@ move_config() {
 	toradex,apalis_imx6q-eval|\
 	toradex,apalis_imx6q-ixora|\
 	toradex,apalis_imx6q-ixora-v1.1)
-		if [ -b $(bootpart_from_uuid) ]; then
-			apalis_mount_boot
-			[ -f "/boot/$BACKUP_FILE" ] && mv -f "/boot/$BACKUP_FILE" /
-			umount /boot
-		fi
+		imx_sdcard_move_config
 		;;
 	esac
 }
diff --git a/target/linux/imx/cortexa9/base-files/lib/upgrade/platform.sh b/target/linux/imx/cortexa9/base-files/lib/upgrade/platform.sh
index d6f8fb82a6..dc2bf9cf49 100755
--- a/target/linux/imx/cortexa9/base-files/lib/upgrade/platform.sh
+++ b/target/linux/imx/cortexa9/base-files/lib/upgrade/platform.sh
@@ -17,21 +17,6 @@ enable_image_metadata_check() {
 }
 enable_image_metadata_check
 
-apalis_copy_config() {
-	apalis_mount_boot
-	cp -af "$UPGRADE_BACKUP" "/boot/$BACKUP_FILE"
-	sync
-	umount /boot
-}
-
-apalis_do_upgrade() {
-	apalis_mount_boot
-	get_image "$1" | tar Oxf - sysupgrade-apalis/kernel > /boot/uImage
-	get_image "$1" | tar Oxf - sysupgrade-apalis/root > $(rootpart_from_uuid)
-	sync
-	umount /boot
-}
-
 platform_check_image() {
 	local board=$(board_name)
 
@@ -109,7 +94,7 @@ platform_do_upgrade() {
 	toradex,apalis_imx6q-eval|\
 	toradex,apalis_imx6q-ixora|\
 	toradex,apalis_imx6q-ixora-v1.1)
-		apalis_do_upgrade "$1"
+		imx_sdcard_do_upgrade "$1"
 		;;
 	esac
 }
@@ -121,7 +106,7 @@ platform_copy_config() {
 	toradex,apalis_imx6q-eval|\
 	toradex,apalis_imx6q-ixora|\
 	toradex,apalis_imx6q-ixora-v1.1)
-		apalis_copy_config
+		imx_sdcard_copy_config
 		;;
 	esac
 }
@@ -133,10 +118,7 @@ platform_pre_upgrade() {
 	toradex,apalis_imx6q-eval|\
 	toradex,apalis_imx6q-ixora|\
 	toradex,apalis_imx6q-ixora-v1.1)
-		[ -z "$UPGRADE_BACKUP" ] && {
-			jffs2reset -y
-			umount /overlay
-		}
+		imx_sdcard_pre_upgrade
 		;;
 	esac
 }