| 1 | #/bin/sh |
| 2 | # |
| 3 | # Copyright (C) 2011 OpenWrt.org |
| 4 | # |
| 5 | # This is free software, licensed under the GNU General Public License v2. |
| 6 | # See /LICENSE for more information. |
| 7 | # |
| 8 | |
| 9 | usage() { |
| 10 | echo "Usage: $0 <out file path> <kernel path> <rootfs path>" |
| 11 | rm -f $CFG_OUT |
| 12 | exit 1 |
| 13 | } |
| 14 | |
| 15 | [ "$#" -lt 3 ] && usage |
| 16 | |
| 17 | FLASH_BS=262144 |
| 18 | CHECK_BS=65536 |
| 19 | MAX_PART_SIZE=7168 |
| 20 | CFG_OUT=$1 |
| 21 | |
| 22 | KERNEL_PATH=$2 |
| 23 | KERNEL_FLASH_ADDR=0x1c0000 |
| 24 | KERNEL_SIZE=$(stat -c%s "$KERNEL_PATH") |
| 25 | KERNEL_MD5=$(md5=$(md5sum $KERNEL_PATH); echo ${md5%% *}) |
| 26 | KERNEL_PART_SIZE=$(size=$(($KERNEL_SIZE / $FLASH_BS)); [ $(($size * $FLASH_BS)) -lt $KERNEL_SIZE ] && size=$(($size + 1)); echo $(($size * $FLASH_BS / 1024))) |
| 27 | |
| 28 | ROOTFS_PATH=$3 |
| 29 | ROOTFS_FLASH_ADDR=$(addr=$(($KERNEL_FLASH_ADDR + ($KERNEL_PART_SIZE * 1024))); printf "0x%x" $addr) |
| 30 | ROOTFS_SIZE=$(stat -c%s "$ROOTFS_PATH") |
| 31 | ROOTFS_CHECK_BLOCKS=$((($ROOTFS_SIZE / $CHECK_BS) - 1)) |
| 32 | ROOTFS_MD5=$(md5=$(dd if=$ROOTFS_PATH bs=$CHECK_BS count=$ROOTFS_CHECK_BLOCKS 2>&- | md5sum); echo ${md5%% *}) |
| 33 | ROOTFS_CHECK_SIZE=$(printf '0x%x' $(($ROOTFS_CHECK_BLOCKS * $CHECK_BS))) |
| 34 | ROOTFS_PART_SIZE=$(($MAX_PART_SIZE - $KERNEL_PART_SIZE)) |
| 35 | |
| 36 | cat << EOF > $CFG_OUT |
| 37 | [vmlinux] |
| 38 | filename=kernel |
| 39 | md5sum=$KERNEL_MD5 |
| 40 | flashaddr=$KERNEL_FLASH_ADDR |
| 41 | checksize=0x0 |
| 42 | cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; saveenv |
| 43 | cmd_fail=reset |
| 44 | |
| 45 | [rootfs] |
| 46 | filename=rootfs |
| 47 | md5sum=$ROOTFS_MD5 |
| 48 | flashaddr=$ROOTFS_FLASH_ADDR |
| 49 | checksize=$ROOTFS_CHECK_SIZE |
| 50 | cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; setenv rootfs_size_1 $ROOTFS_PART_SIZE; saveenv |
| 51 | cmd_fail=reset |
| 52 | EOF |
| 53 | |
