Initial commit

target/linux/bcm27xx/base-files/lib/preinit/05_set_preinit_iface_brcm2708

@@ -0,0 +1,24 @@
+# Copyright (C) 2015-2016 OpenWrt.org
+# Copyright (C) 2017 LEDE project
+
+set_preinit_iface() {
+	. /lib/functions.sh
+
+	case "$(board_name)" in
+	raspberrypi,2-model-b |\
+	raspberrypi,2-model-b-rev2 |\
+	raspberrypi,3-model-b |\
+	raspberrypi,3-model-b-plus |\
+	raspberrypi,400 |\
+	raspberrypi,4-compute-module |\
+	raspberrypi,4-model-b |\
+	raspberrypi,5-model-b |\
+	raspberrypi,model-b |\
+	raspberrypi,model-b-plus |\
+	raspberrypi,model-b-rev2)
+		ifname=eth0
+		;;
+	esac
+}
+
+boot_hook_add preinit_main set_preinit_iface

target/linux/bcm27xx/base-files/lib/preinit/79_move_config

@@ -0,0 +1,26 @@
+# Copyright (C) 2015 OpenWrt.org
+
+. /lib/upgrade/common.sh
+
+move_config() {
+	local partdev
+
+	export_bootdevice && export_partdevice partdev 1 || {
+		partdev=mmcblk0p1
+	}
+
+	if [ -b "/dev/$partdev" ]; then
+		insmod nls_cp437
+		insmod nls_iso8859-1
+		insmod fat
+		insmod vfat
+		mkdir -p /boot
+		mount -t vfat -o rw,noatime /dev/$partdev /boot
+		if [ -f "/boot/$BACKUP_FILE" ]; then
+			mv -f "/boot/$BACKUP_FILE" /
+			export BCM27XX_SET_ROOT_PART=1
+		fi
+	fi
+}
+
+boot_hook_add preinit_mount_root move_config

target/linux/bcm27xx/base-files/lib/preinit/81_set_root_part

@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+. /lib/upgrade/platform.sh
+
+do_set_root_part() {
+	if [ "$BCM27XX_SET_ROOT_PART" -eq "1" ]; then
+		bcm27xx_set_root_part
+		unset BCM27XX_SET_ROOT_PART
+	fi
+}
+
+[ "$INITRAMFS" = "1" ] || boot_hook_add preinit_main do_set_root_part

target/linux/bcm27xx/base-files/lib/upgrade/keep.d/platform

@@ -0,0 +1,2 @@
+/boot/cmdline.txt
+/boot/config.txt

target/linux/bcm27xx/base-files/lib/upgrade/platform.sh

@@ -0,0 +1,130 @@
+. /lib/functions.sh
+
+REQUIRE_IMAGE_METADATA=1
+
+# copied from x86's platform.sh
+
+platform_check_image() {
+	local diskdev partdev diff
+
+	[ "$#" -gt 1 ] && return 1
+
+	export_bootdevice && export_partdevice diskdev 0 || {
+		echo "Unable to determine upgrade device"
+		return 1
+	}
+
+	get_partitions "/dev/$diskdev" bootdisk
+
+	#extract the boot sector from the image
+	get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b 2>/dev/null
+
+	get_partitions /tmp/image.bs image
+
+	#compare tables
+	diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
+
+	rm -f /tmp/image.bs /tmp/partmap.bootdisk /tmp/partmap.image
+
+	if [ -n "$diff" ]; then
+		echo "Partition layout has changed. Full image will be written."
+		ask_bool 0 "Abort" && exit 1
+		return 0
+	fi
+
+	return 0;
+}
+
+platform_do_upgrade() {
+	local diskdev partdev diff
+
+	export_bootdevice && export_partdevice diskdev 0 || {
+		echo "Unable to determine upgrade device"
+		return 1
+	}
+
+	sync
+
+	if [ "$UPGRADE_OPT_SAVE_PARTITIONS" = "1" ]; then
+		get_partitions "/dev/$diskdev" bootdisk
+
+		#extract the boot sector from the image
+		get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b
+
+		get_partitions /tmp/image.bs image
+
+		#compare tables
+		diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)"
+	else
+		diff=1
+	fi
+
+	if [ -n "$diff" ]; then
+		get_image "$@" | dd of="/dev/$diskdev" bs=2M conv=fsync
+
+		# Separate removal and addtion is necessary; otherwise, partition 1
+		# will be missing if it overlaps with the old partition 2
+		partx -d - "/dev/$diskdev"
+		partx -a - "/dev/$diskdev"
+
+		return 0
+	fi
+
+	#iterate over each partition from the image and write it to the boot disk
+	while read part start size; do
+		if export_partdevice partdev $part; then
+			echo "Writing image to /dev/$partdev..."
+			get_image "$@" | dd of="/dev/$partdev" ibs="512" obs=1M skip="$start" count="$size" conv=fsync
+		else
+			echo "Unable to find partition $part device, skipped."
+	fi
+	done < /tmp/partmap.image
+
+	#copy partition uuid
+	echo "Writing new UUID to /dev/$diskdev..."
+	get_image "$@" | dd of="/dev/$diskdev" bs=1 skip=440 count=4 seek=440 conv=fsync
+}
+
+bcm27xx_set_root_part() {
+	local root_part
+
+	if [ -f "/boot/partuuid.txt" ]; then
+		root_part="PARTUUID=$(cat "/boot/partuuid.txt")-02"
+	else
+		root_part="/dev/mmcblk0p2"
+	fi
+
+	sed -i "s#\broot=[^ ]*#root=${root_part}#g" "/boot/cmdline.txt"
+}
+
+platform_copy_config() {
+	local partdev
+
+	if export_partdevice partdev 1; then
+		mkdir -p /boot
+		[ -f /boot/kernel*.img ] || mount -t vfat -o rw,noatime "/dev/$partdev" /boot
+
+		tar -C / -zxvf "$UPGRADE_BACKUP" boot/cmdline.txt boot/config.txt
+		bcm27xx_set_root_part
+
+		local backup_tmp="/tmp/backup-update"
+		mkdir -p $backup_tmp
+		tar -C $backup_tmp -zxvf $UPGRADE_BACKUP
+		cp -af /boot/cmdline.txt $backup_tmp/boot/
+
+		local work_dir=$(pwd)
+		cd $backup_tmp
+		tar -C $backup_tmp -zcvf /boot/$BACKUP_FILE *
+		cd $work_dir
+
+		sync
+		umount /boot
+	fi
+}
+
+platform_restore_backup() {
+	local TAR_V=$1
+
+	tar -C / -x${TAR_V}zf "$CONF_RESTORE"
+	bcm27xx_set_root_part
+}