Initial commit

target/linux/mediatek/image/gen_scatterfile.sh

@@ -0,0 +1,73 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Copyright © 2020 David Woodhouse <dwmw2@infradead.org>
+#
+# Generate as "scatter file" for use with the MediaTek SP Flash tool for
+# writing images to MediaTek boards. This can be used to write images
+# even on a bricked board which has no preloader installed, or broken
+# U-Boot.
+#
+# NOTE: At the time of writing (2020-07-20), the Linux tool linked from
+# the front page of https://spflashtool.com/ is out of date and does not
+# support MT7623. The newer v5.1916 found on the download page at
+# https://spflashtool.com/download/ has been tested on UniElec U7623 and
+# Banana Pi R2 from Linux, and does work.
+#
+
+SOC=$1
+IMAGE=${2%.gz}
+PROJECT=${3%-scatter.txt}
+DEVICENAME="$4"
+
+cat <<EOF
+# OpenWrt eMMC scatter file for ${DEVICENAME}
+# For use with SP Flash Tool: https://spflashtool.com/download/
+#
+# Unzip the file system file ${PROJECT}-${IMAGE}.gz before flashing.
+# Connect the device's USB port, although it won't appear to the host yet.
+# Load this scatter file into the SP Flash Tool, select 'Format All + Download'
+# After pressing the 'Download' button, power on the board.
+# The /dev/ttyACM0 device should appear on USB and the tool should find it.
+
+- general: MTK_PLATFORM_CFG
+  info:
+    - config_version: V1.1.2
+      platform: ${SOC}
+      project: ${PROJECT}
+      storage: EMMC
+      boot_channel: MSDC_0
+      block_size: 0x20000
+
+- partition_index: SYS0
+  partition_name: PRELOADER
+  file_name: ${PROJECT}-preloader.bin
+  is_download: true
+  type: SV5_BL_BIN
+  linear_start_addr: 0x0
+  physical_start_addr: 0x0
+  partition_size: 0x40000
+  region: EMMC_BOOT_1
+  storage: HW_STORAGE_EMMC
+  boundary_check: true
+  is_reserved: false
+  operation_type: BOOTLOADERS
+  d_type: FALSE
+  reserve: 0x00
+
+- partition_index: SYS1
+  partition_name: OPENWRT
+  file_name: ${PROJECT}-${IMAGE}
+  is_download: true
+  type: NORMAL_ROM
+  linear_start_addr: 0x00000
+  physical_start_addr: 0x00000
+  partition_size: 0x4000000
+  region: EMMC_USER
+  storage: HW_STORAGE_EMMC
+  boundary_check: true
+  is_reserved: false
+  operation_type: UPDATE
+  d_type: FALSE
+  reserve: 0x00
+EOF