Add mk_hdr from Freescale

image/mk_hdr.sh

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