ar71xx: convert mikrotik routerboard support to UBI

Remove the wget2nand script, drop the need for manual installation,
use sysupgrade instead.

There are now two different NAND images, one for 64 MiB flashes, the
other for >= 128 MiB

Signed-off-by: Felix Fietkau <nbd@nbd.name>

2 files changed, 30 insertions, 85 deletions

diff --git a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
index 6341a31791..82ed041d66 100755
--- a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
@@ -7,6 +7,7 @@
 
 PART_NAME=firmware
 RAMFS_COPY_DATA=/lib/ar71xx.sh
+[ -x /usr/sbin/nandwrite ] && RAMFS_COPY_BIN=/usr/sbin/nandwrite
 
 CI_BLKSZ=65536
 CI_LDADR=0x80060000
@@ -164,6 +165,15 @@ alfa_check_image() {
 	return 0
 }
 
+platform_nand_board_name() {
+	local board=$(ar71xx_board_name)
+
+	case "$board" in
+	rb*) echo "routerboard";;
+	*) echo "$board";;
+	esac
+}
+
 platform_check_image() {
 	local board=$(ar71xx_board_name)
 	local magic="$(get_magic_word "$1")"
@@ -443,6 +453,10 @@ platform_check_image() {
 	tew-673gru)
 		dir825b_check_image "$1" && return 0
 		;;
+	rb*)
+		nand_do_platform_check routerboard $1
+		return $?
+		;;
 	c-60|\
 	nbg6716|\
 	r6100|\
@@ -570,6 +584,7 @@ platform_pre_upgrade() {
 	local board=$(ar71xx_board_name)
 
 	case "$board" in
+	rb*|\
 	c-60|\
 	nbg6716|\
 	r6100|\
@@ -584,6 +599,21 @@ platform_pre_upgrade() {
 	esac
 }
 
+platform_nand_pre_upgrade() {
+	local board=$(ar71xx_board_name)
+
+	case "$board" in
+	rb*)
+		CI_KERNPART=none
+		local fw_mtd=$(find_mtd_part kernel)
+		fw_mtd="${fw_mtd/block/}"
+		[ -n "$fw_mtd" ] || return
+		mtd erase kernel
+		tar xf "$1" sysupgrade-routerboard/kernel -O | nandwrite -o "$fw_mtd" -
+		;;
+	esac
+}
+
 platform_do_upgrade() {
 	local board=$(ar71xx_board_name)
 
diff --git a/target/linux/ar71xx/base-files/sbin/wget2nand b/target/linux/ar71xx/base-files/sbin/wget2nand
deleted file mode 100755
index c80e21ccc7..0000000000
--- a/target/linux/ar71xx/base-files/sbin/wget2nand
+++ /dev/null
@@ -1,85 +0,0 @@
-#!/bin/sh
-# wget2nand
-# This script can be used to download a TGZ file from your build system which
-# contains the files to be installed on the NAND flash on your RB1xx card.
-# The one parameter is the URL of the TGZ file to be downloaded.
-# Licence GPL V2
-# Author david.goodenough@linkchoose.co.uk
-# Based on cf2nand from RB532 support
-. /lib/functions.sh
-
-wget2nand_dir=/tmp/wget2nand
-mnt_kernel=$wget2nand_dir/mnt_kernel
-mnt_rootfs=$wget2nand_dir/mnt_rootfs
-src_rootfs=$wget2nand_dir/rootfs.tgz
-src_kernel=$wget2nand_dir/kernel
-
-[ -d "$wget2nand_dir" ] && {
-	echo "$wget2nand_dir already exists"
-	exit 1
-}
-
-# need to find the wget server from the command line
-url=$1
-[ -z "$url" ] && {
-        echo "No URL specified for image TGZ"
-        echo "Usage : $0 URL"
-        exit 1
-}
-
-url_kernel=$url/lede-ar71xx-mikrotik-vmlinux-lzma.elf
-url_rootfs=$url/lede-ar71xx-mikrotik-defaultnowifi-rootfs.tar.gz
-
-mtd_kernel="$(find_mtd_part 'kernel')"
-mtd_rootfs="$(find_mtd_part 'rootfs')"
-[ -z "$mtd_kernel" -o -z "$mtd_rootfs" ] && {
-	echo "Cannot find NAND Flash partitions"
-	exit 1
-}
-
-mkdir "$wget2nand_dir"
-wget $url_kernel -O "$src_kernel" || {
-	echo "Unable to download $url_kernel"
-	exit 1
-}
-
-wget $url_rootfs -O "$src_rootfs" || {
-	echo "Unable to download $url_rootfs"
-	exit 1
-}
-
-echo "Erasing filesystem..."
-mtd erase kernel 2>/dev/null >/dev/null
-mtd erase rootfs 2>/dev/null >/dev/null
-
-echo "Mounting $mtd_rootfs as new root and $mtd_kernel as kernel partition"
-
-mkdir "$mnt_kernel"
-mkdir "$mnt_rootfs"
-mount -t yaffs2 "$mtd_kernel" "$mnt_kernel"
-mount -t yaffs2 "$mtd_rootfs" "$mnt_rootfs"
-
-echo "Copying kernel..."
-cp $src_kernel $mnt_kernel/kernel || {
-       echo "Error occured while copying the kernel"
-       exit 1
-}
-chmod +x $mnt_kernel/kernel
-
-echo "Preparing filesystem..."
-( cd "$mnt_rootfs"; tar xvz -f "$src_rootfs" )
-
-# make sure everything is written before we unmount the partitions
-echo "chmod ugo+x /" > $mnt_rootfs/etc/uci-defaults/set_root_permission
-sync
-ls $mnt_kernel >/dev/null
-ls $mnt_rootfs >/dev/null
-
-echo "Cleaning up..."
-# unmount the partitions and remove the directories into which they were mounted
-umount $mnt_kernel
-umount $mnt_rootfs
-rm -rf $wget2nand_dir
-
-# all done
-echo "Image written, you can now reboot.  Remember to change the boot source to Boot from Nand"