diff --git a/tools/mrvl_uart.sh b/tools/mrvl_uart.sh new file mode 100755 index 0000000..6b04d7a --- /dev/null +++ b/tools/mrvl_uart.sh @@ -0,0 +1,119 @@ +#!/bin/bash +# +###################################################### +# Copyright (C) 2016 Marvell International Ltd. +# +# SPDX-License-Identifier: GPL-2.0 +# https://spdx.org/licenses +# +# Author: Konstantin Porotchkin kostap@marvell.com +# +# Version 0.3 +# +# UART recovery downloader for Armada SoCs +# +###################################################### + +port=$1 +file=$2 +speed=$3 + +pattern_repeat=1500 +default_baudrate=115200 +tmpfile=/tmp/xmodem.pattern +tools=( dd stty sx minicom ) + +case "$3" in + 2) + fast_baudrate=230400 + prefix="\xF2" + ;; + 4) + fast_baudrate=460800 + prefix="\xF4" + ;; + 8) + fast_baudrate=921600 + prefix="\xF8" + ;; + *) + fast_baudrate=$default_baudrate + prefix="\xBB" +esac + +if [[ -z "$port" || -z "$file" ]] +then + echo -e "\nMarvell recovery image downloader for Armada SoC family." + echo -e "Command syntax:" + echo -e "\t$(basename $0) [2|4|8]" + echo -e "\tport - serial port the target board connected to" + echo -e "\tfile - recovery boot image for target download" + echo -e "\t2|4|8 - times to increase the default serial port speed by" + echo -e "For example - load the image over ttyUSB0 @ 460800 baud:" + echo -e "$(basename $0) /dev/ttyUSB0 /tmp/flash-image.bin 4\n" + echo -e "=====WARNING=====" + echo -e "- The speed-up option is not awailable in SoC families prior to A8K+" + echo -e "- This utility is not compatible with Armada 37xx SoC family\n" +fi + +# Sanity checks +if [ -c "$port" ] +then + echo -e "Using device connected on serial port \"$port\"" +else + echo "Wrong serial port name!" + exit 1 +fi + +if [ -f "$file" ] +then + echo -e "Loading flash image file \"$file\"" +else + echo "File $file does not exist!" + exit 1 +fi + +# Verify required tools installation +for tool in ${tools[@]} +do + toolname=`which $tool` + if [ -z "$toolname" ] + then + echo -e "Missing installation of \"$tool\" --> Exiting" + exit 1 + fi +done + + +echo -e "Recovery will run at $fast_baudrate baud" +echo -e "========================================" + +if [ -f "$tmpfile" ] +then + rm -f $tmpfile +fi + +# Send the escape sequence to target board using default debug port speed +stty -F $port raw ignbrk time 5 $default_baudrate +counter=0 +while [ $counter -lt $pattern_repeat ]; do + echo -n -e "$prefix\x11\x22\x33\x44\x55\x66\x77" >> $tmpfile + let counter=counter+1 +done + +echo -en "Press the \"Reset\" button on the target board and " +echo -en "the \"Enter\" key on the host keyboard simultaneously" +read +dd if=$tmpfile of=$port &>/dev/null + +# Speed up the binary image transfer +stty -F $port raw ignbrk time 5 $fast_baudrate +sx -vv $file > $port < $port +#sx-at91 $port $file + +# return the port to the default speed +stty -F $port raw ignbrk time 5 $default_baudrate + +# Optional - fire up Minicom +minicom -D $port +