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Add mk_hdr from Freescale
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148
image/mk_hdr.sh
Executable file
148
image/mk_hdr.sh
Executable file
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#!/bin/bash
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# mk_hdr.sh
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# Redistributed URL: https://github.com/embeddedTS/linux-2.6.35.3-imx28/blob/master/mk_hdr.sh
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#
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# This program is distributed with mk_mx28_sd that has the text of 3-Clause BSD License.
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# Both are considered to be licenced under the same agreement so we put the text here.
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# Copyright (c) 2010 Freescale Semiconductor, Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification,
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# are permitted provided that the following conditions are met:
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#
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# o Redistributions of source code must retain the above copyright notice, this list
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# of conditions and the following disclaimer.
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#
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# o Redistributions in binary form must reproduce the above copyright notice, this
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# list of conditions and the following disclaimer in the documentation and/or
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# other materials provided with the distribution.
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#
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# o Neither the name of Freescale Semiconductor, Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from this
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# software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# Usage: make_boot <base_sector> <num_sb_files>
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#
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# where
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#
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# <base_sector> is the first sector _of the boot stream partition (i.e. /sd#2 or /sd#3, etc)
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# <num_sb_files> is the # of boot stream blocks (currently only 1 supported)
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#[ $1 = ] && { echo -e " error - boot partition start sector missing" ; exit };
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#[ $2 = ] && { echo -e " error - # of bootable images in .sb file missing" ; exit };
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# Future usage: make_boot <dev_partition> <sb_file_tag,sb_sector_offset> <sb_file_tag2, base_addr2> ...
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#
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# Where base sector comes from MBR, and sb_sector_offset is an offset from start of boot-partition, not absolute sector.
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#Script Vars
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base_sector=$1
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numbootstreams=$2
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primary=0
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secondary=0
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#########################################
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# out_byte args...
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#
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# this function writes the binary value to stdout of each argument in the order given
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# i.e. out_byte 0 1 2 3 will echo "\x00\x01\x02\x03" to stdout (w/o terminating null )
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function out_byte(){
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for val in $*
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do
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# echo -e "byte=$val"
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echo -en "\\x$(printf %02x $val)"
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done
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}
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function out_u32_le()
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{
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for val32 in $*
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do
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val=$(($val32))
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b0=$((val % (2**8)))
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val=$((val / (2**8)))
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b1=$((val % (2**8)))
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val=$((val / (2**8)))
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b2=$((val % (2**8)))
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val=$((val / (2**8)))
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b3=$((val % (2**8)))
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### Keep around for debug/verbose output
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# printf "$val32 ==> %02x%02x%02x%02x\n" $b0 $b1 $b2 $b3
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### Output the bytes in binary form
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#
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out_byte $b0 $b1 $b2 $b3
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done
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}
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function out_bcb ()
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{
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signature=0x00112233
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primary_tag=$1
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secondary_tag=$2
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num_bsb=$3
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out_u32_le signature primary_tag secondary_tag num_bsb
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}
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# usage: out_bsb tag base_sector
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# where base_sector is relative to partition
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# i.e. if partition starts on lba 63 & first boot stream, base_sector = 1, not 64
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# This function will automatically compute the absolute base sector.
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function out_bsb
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{
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abs_sector=$(($2 + $base_sector))
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# unused0
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out_u32_le 0
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# unused1
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out_u32_le 0
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# tag boot stream tag
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out_u32_le $1
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# boot stream base sector (absolute)
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out_u32_le $abs_sector
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# unused2
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out_u32_le 0
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}
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###############################
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# Send header output to std out
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###############################
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# Output boot stream signature & info
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# out_u32_le signature primary secondary numbootstreams
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out_bcb primary secondary numbootstreams
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# Output .sb starting sector info
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# out_u32_le unused0 unused1 tag base_sector unused2
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out_bsb primary 1
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# Output bsb for sb #2
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#out_bsb tag_[p|s] base_sector_2
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# Output bsb for sb #n
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# out_bsb tag_[p|s] base_sector_n
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#
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