target/linux/mxs/image/gen_mxs_sdcard_img.sh

   1 #!/usr/bin/env bash
   2
   3 #
   4 # Copyright (C) 2015 OpenWrt.org
   5 #
   6 # This is free software, licensed under the GNU General Public License v2.
   7 # See /LICENSE for more information.
   8 #
   9
  10 set -x
  11 [ $# -eq 6 ] || {
  12     echo "SYNTAX: $0 <file> <bootfs image> <rootfs image> <bootfs size> <rootfs size> <u-boot image>"
  13     exit 1
  14 }
  15
  16 OUTPUT="$1"
  17 BOOTFS="$2"
  18 ROOTFS="$3"
  19 BOOTFSSIZE="$4"
  20 ROOTFSSIZE="$5"
  21 UBOOT="$6"
  22
  23 head=4
  24 sect=63
  25
  26 # Set the u-boot storage to 2M
  27 set `ptgen -o $OUTPUT -h $head -s $sect -l 1024 -t 53 -p 2M -t c -p ${BOOTFSSIZE}M -t 83 -p ${ROOTFSSIZE}M`
  28
  29 UBOOTOFFSET="$(($1 / 512))"
  30 UBOOTSIZE="$(($2 / 512))"
  31 BOOTOFFSET="$(($3 / 512))"
  32 BOOTSIZE="$(($4 / 512))"
  33 ROOTFSOFFSET="$(($5 / 512))"
  34 ROOTFSSIZE="$(($6 / 512))"
  35
  36 dd bs=512 if="$UBOOT" of="$OUTPUT" seek="$UBOOTOFFSET" conv=notrunc
  37 dd bs=512 if="$BOOTFS" of="$OUTPUT" seek="$BOOTOFFSET" conv=notrunc
  38 dd bs=512 if="$ROOTFS" of="$OUTPUT" seek="$ROOTFSOFFSET" conv=notrunc