mediatek: mt7623: rework images for U7623-02 board

Users of older OpenWrt versions need sysupgrade using the *emmc.img.gz
file once which will upgrade U-Boot and switch to the new image layout.
Users of the vendor firmware need to first flash the legacy image to
then sunsequently carry out a full-flash upgrade.

Alternatively the board can also be flashed using MediaTek's
proprietary SP Flash Tool.

Configuration as well as persistent MAC address will be lost once at
this point and you will have to redo (or restore) all configuration
manually. To restore the previous persistent MAC address users may set
it manually using

fw_setenv ethaddr 00:11:22:33:44:55

For future upgrades once running OpenWrt past this commit, the usual
*sysupgrade.itb file can be used.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

1 files changed, 0 insertions, 147 deletions

diff --git a/target/linux/mediatek/image/gen_mtk_mmc_img.sh b/target/linux/mediatek/image/gen_mtk_mmc_img.sh
deleted file mode 100755
index 7e19e1a39e..0000000000
--- a/target/linux/mediatek/image/gen_mtk_mmc_img.sh
+++ /dev/null
@@ -1,147 +0,0 @@
-#!/bin/bash
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# Copyright © 2019 Alexey Loukianov <lx2@lexa2.ru>
-# Copyright © 2020 David Woodhouse <dwmw2@infradead.org>
-
-# Generates a bootable SD card image for Banana Pi R2 (and probably
-# other similar boards) as documented at
-# http://www.fw-web.de/dokuwiki/doku.php?id=en:bpi-r2:storage
-#
-# The first sector must contain the SDMMC_BOOT header shown
-# below, and also contains the MBR partition table in the end
-# of the sector. The partition table must contain no active
-# partitions.
-#
-# The second sector must contain the BRLYT header, and the
-# special preloader image goes in sector 4; 2KiB into the image.
-#
-# The preloader loads U-Boot from  sector 640; 320KiB into the image.
-# The location and the size (512KiB) are fixed and not read from
-# the partition table. We set up a partition for it merely for
-# our own convenience for upgrades, etc.
-#
-# The second partition is a FAT file system containing the kernel
-# image and a uboot.env file, which is provided to this script as
-# $4 (bootfs image). Its size is configurable with the
-# CONFIG_MTK_BOOT_PARTSIZE option; by default 32MiB.
-#
-# The root filesystem comes next in the third partition.
-#
-#
-#   ------------------------   Sector   Offset
-#   |  MBR + SDMMC_BOOT    |     0       0x0
-#   |----------------------|
-#   |     BRLYT header     |     1       0x200
-#   |----------------------|
-#   .                      .
-#   .                      .
-#   |----------------------|
-#   |                      |     4       0x800
-#   |                      |
-#   |     Preloader        |
-#   .                      .
-#   .                      .
-#   |                      |     639
-#   |----------------------|
-#   |   MBR partition #1   |     640     0x50000
-#   |                      |
-#   |       U-Boot         |
-#   .                      .
-#   .                      .
-#   |                      |     1663
-#   |----------------------|
-#   |   MBR partition #2   |
-#   |                      |
-#   |    FAT partition     |   ( MTK_BOOT_PARTSIZE
-#   .                      .     default 32MiB )
-#   .    (kernel, uEnv)    .
-#   |                      |
-#   |----------------------|
-#   |   MBR partition #3   |
-#   |                      |
-#   |   Root partition     |
-#   |                      |   ( TARGET_ROOTFS_PARTSIZE
-#   |  (squashfs+overlay   |     default 104MiB )
-#   .    or ext4, etc.)    .
-#   .                      .
-#   |                      |
-#   ------------------------
-#
-# For eMMC boot, everything up to and including the preloader must be
-# written to /dev/mmcblk0boot0, with the SDMMC_BOOT header changed to
-# read EMMC_BOOT\0 instead.
-#
-# The contents of the main eMMC are identical to the SD card layout,
-# with the preloader loading 512KiB of U-Boot starting at 0x50000.
-
-usage() {
-    echo "SYNTAX: $0 sd <file> <preloader image> <u-boot image> <u-boot offset> <bootfs image> <rootfs image> <bootfs size> <rootfs size>"
-    echo " OR:    $0 emmc <file> <preloader image>"
-    exit 1
-}
-
-set -e
-
-PRELOADER_OFFSET=2     # 2KiB
-
-SDMMC_BOOT="SDMMC_BOOT\x00\x00\x01\x00\x00\x00\x00\x02\x00\x00"
-EMMC_BOOT="EMMC_BOOT\x00\x00\x00\x01\x00\x00\x00\x00\x02\x00\x00"
-BRLYT="BRLYT\x00\x00\x00\x01\x00\x00\x00\x00\x08\x00\x00\
-\x00\x08\x00\x00\x42\x42\x42\x42\x08\x00\x01\x00\x00\x08\x00\x00\
-\x00\x08\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
-
-case $1 in
- sd)
-	[ $# -eq 9 ] || usage
-	OUTPUT="$2"
-	PRELOADER="$3"
-	UBOOT="$4"
-	UBOOTOFS="$5"
-	BOOTFS="$6"
-	ROOTFS="$7"
-	BOOTFSSIZE="$8"
-	ROOTFSSIZE="$9"
-
-	head=4
-	sect=63
-
-	set $(ptgen -o $OUTPUT -h $head -s $sect -a 0 -l 1024 \
-		    -t 41 -p 512k@${UBOOTOFS} \
-		    -t c -p ${BOOTFSSIZE}M \
-		    -t 83 -p ${ROOTFSSIZE}M )
-
-	UBOOT_OFFSET="$(($1 / 512))"
-	UBOOT_SIZE="$(($2 / 512))"
-	BOOTFS_OFFSET="$(($3 / 512))"
-	BOOTFS_SIZE="$(($4 / 512))"
-	ROOTFS_OFFSET="$(($5 / 512))"
-	ROOTFS_SIZE="$(($6 / 512))"
-
-	echo -en "${SDMMC_BOOT}" | dd bs=1 of="${OUTPUT}" seek=0   conv=notrunc
-	echo -en "${BRLYT}"      | dd bs=1 of="${OUTPUT}" seek=512 conv=notrunc
-
-	# For eMMC-only boards like U7623 the preloader doesn't need to be included in the
-	# main image as it's only ever needed in the eMMC boot partition.
-	if [ -r ${PRELOADER} ]; then
-	    dd bs=1024 if="${PRELOADER}" of="${OUTPUT}" seek="${PRELOADER_OFFSET}" conv=notrunc
-	fi
-	dd bs=512  if="${UBOOT}"     of="${OUTPUT}" seek="${UBOOT_OFFSET}"     conv=notrunc
-	dd bs=512  if="${BOOTFS}"    of="${OUTPUT}" seek="${BOOTFS_OFFSET}"    conv=notrunc
-	dd bs=512  if="${ROOTFS}"    of="${OUTPUT}" seek="${ROOTFS_OFFSET}"    conv=notrunc
-	dd bs=128k if=/dev/zero      of="${OUTPUT}" count=1    oflag=append    conv=notrunc
-	;;
- emmc)
-	[ $# -eq 3 ] || usage
-	OUTPUT="$2"
-	PRELOADER="$3"
-
-	echo -en "${EMMC_BOOT}"  | dd bs=1 of="${OUTPUT}" seek=0
-	echo -en "${BRLYT}"      | dd bs=1 of="${OUTPUT}" seek=512 conv=notrunc
-
-	dd bs=1024 if="${PRELOADER}" of="${OUTPUT}" seek="${PRELOADER_OFFSET}" conv=notrunc
-	;;
- *)
-	usage
-	;;
-esac