1#!/bin/bash 2# 3###################################################### 4# Copyright (C) 2016 Marvell International Ltd. 5# 6# SPDX-License-Identifier: GPL-2.0 7# https://spdx.org/licenses 8# 9# Author: Konstantin Porotchkin kostap@marvell.com 10# 11# Version 0.3 12# 13# UART recovery downloader for Armada SoCs 14# 15###################################################### 16 17port=$1 18file=$2 19speed=$3 20 21pattern_repeat=1500 22default_baudrate=115200 23tmpfile=/tmp/xmodem.pattern 24tools=( dd stty sx minicom ) 25 26case "$3" in 27 2) 28 fast_baudrate=230400 29 prefix="\xF2" 30 ;; 31 4) 32 fast_baudrate=460800 33 prefix="\xF4" 34 ;; 35 8) 36 fast_baudrate=921600 37 prefix="\xF8" 38 ;; 39 *) 40 fast_baudrate=$default_baudrate 41 prefix="\xBB" 42esac 43 44if [[ -z "$port" || -z "$file" ]] 45then 46 echo -e "\nMarvell recovery image downloader for Armada SoC family." 47 echo -e "Command syntax:" 48 echo -e "\t$(basename $0) <port> <file> [2|4|8]" 49 echo -e "\tport - serial port the target board connected to" 50 echo -e "\tfile - recovery boot image for target download" 51 echo -e "\t2|4|8 - times to increase the default serial port speed by" 52 echo -e "For example - load the image over ttyUSB0 @ 460800 baud:" 53 echo -e "$(basename $0) /dev/ttyUSB0 /tmp/flash-image.bin 4\n" 54 echo -e "=====WARNING=====" 55 echo -e "- The speed-up option is not awailable in SoC families prior to A8K+" 56 echo -e "- This utility is not compatible with Armada 37xx SoC family\n" 57fi 58 59# Sanity checks 60if [ -c "$port" ] 61then 62 echo -e "Using device connected on serial port \"$port\"" 63else 64 echo "Wrong serial port name!" 65 exit 1 66fi 67 68if [ -f "$file" ] 69then 70 echo -e "Loading flash image file \"$file\"" 71else 72 echo "File $file does not exist!" 73 exit 1 74fi 75 76# Verify required tools installation 77for tool in ${tools[@]} 78do 79 toolname=`which $tool` 80 if [ -z "$toolname" ] 81 then 82 echo -e "Missing installation of \"$tool\" --> Exiting" 83 exit 1 84 fi 85done 86 87 88echo -e "Recovery will run at $fast_baudrate baud" 89echo -e "========================================" 90 91if [ -f "$tmpfile" ] 92then 93 rm -f $tmpfile 94fi 95 96# Send the escape sequence to target board using default debug port speed 97stty -F $port raw ignbrk time 5 $default_baudrate 98counter=0 99while [ $counter -lt $pattern_repeat ]; do 100 echo -n -e "$prefix\x11\x22\x33\x44\x55\x66\x77" >> $tmpfile 101 let counter=counter+1 102done 103 104echo -en "Press the \"Reset\" button on the target board and " 105echo -en "the \"Enter\" key on the host keyboard simultaneously" 106read 107dd if=$tmpfile of=$port &>/dev/null 108 109# Speed up the binary image transfer 110stty -F $port raw ignbrk time 5 $fast_baudrate 111sx -vv $file > $port < $port 112#sx-at91 $port $file 113 114# return the port to the default speed 115stty -F $port raw ignbrk time 5 $default_baudrate 116 117# Optional - fire up Minicom 118minicom -D $port 119 120